mirror of
https://github.com/deepseek-ai/deepseek-harness
synced 2026-08-15 21:04:50 +00:00
1844 lines
67 KiB
TypeScript
1844 lines
67 KiB
TypeScript
/**
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* Interactive pi-tui front door for DeepSeek Harness agents. It renders the
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* durable session transcript, drives one configured agent, and provides
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* keyboard-driven user-interaction dialogs without owning agent lifecycle.
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* @module @deepseek-ai/dsh-tui
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*/
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import { homedir } from 'node:os'
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import { isAbsolute, relative, resolve, sep } from 'node:path'
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import {
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CombinedAutocompleteProvider,
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Container,
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Editor,
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Input,
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Key,
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Markdown,
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Spacer,
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Text,
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TUI,
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ProcessTerminal,
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SelectList,
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matchesKey,
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truncateToWidth,
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visibleWidth,
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wrapTextWithAnsi,
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type Component,
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type EditorTheme,
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type Focusable,
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type MarkdownTheme,
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type OverlayHandle,
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type SelectListTheme,
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type Terminal,
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type TerminalColorScheme,
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} from '@earendil-works/pi-tui'
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import type { Context } from 'cordis'
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import z from 'schemastery'
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import {
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installAgentLlmTarget,
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type Agent,
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type AgentLlmTarget,
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type AgentLlmTargetRef,
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type AgentStatus,
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} from '@deepseek-ai/dsh-agent'
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import type {} from '@deepseek-ai/dsh-agent-loop'
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import type {} from '@deepseek-ai/dsh-token-meter'
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import type {} from '@deepseek-ai/dsh-commands'
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import { errorChain } from '@deepseek-ai/dsh-llm'
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import type {
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ContentBlock,
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LlmModelInfo,
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StreamChunk,
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TokenUsage,
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} from '@deepseek-ai/dsh-llm'
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import type {} from '@deepseek-ai/dsh-llm-retry'
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import { SessionId, type Session, type SessionEvent, type TodoItem } from '@deepseek-ai/dsh-session'
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import { foldSessionTitle } from '@deepseek-ai/dsh-session-title'
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import type {
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FileDiff,
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TerminalCallView,
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ToolCallView,
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ToolDefinition,
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ToolResultView,
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} from '@deepseek-ai/dsh-tools'
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import {
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UserInteractionError,
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type AskUserQuestionAnswer,
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type AskUserQuestionAnswerItem,
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type AskUserQuestionItem,
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type AskUserQuestionRequest,
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} from '@deepseek-ai/dsh-user-interaction'
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export const name = 'ui-tui'
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export const inject = ['agents', 'commands', 'userInteraction', 'tools', 'llm', 'systemPrompt', 'tokenMeter']
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/** Presentation settings for the pi-tui terminal mode. */
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export interface TuiConfig {
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/** Render model reasoning blocks. */
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showReasoning?: boolean
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/** Maximum tool-card body lines retained in its collapsed head/tail preview. */
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maxToolOutputLines?: number
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/** Maximum options visible at once in a user-question panel. */
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maxQuestionOptions?: number
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/** Maximum models visible at once in the model selector. */
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maxModelOptions?: number
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/** User-question panel width in terminal columns, clamped to the terminal. */
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questionDialogWidth?: number
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/** User-question panel maximum height in terminal rows. */
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questionDialogMaxHeight?: number
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/** Model-selector width in terminal columns. */
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modelDialogWidth?: number
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/** Model-selector maximum height in terminal rows. */
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modelDialogMaxHeight?: number
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/** Show the terminal's hardware cursor at the pi editor's IME marker. */
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showHardwareCursor?: boolean
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/** Apply the built-in ANSI color palette. */
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color?: boolean
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/** Terminal window title while the UI is mounted. */
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title?: string
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}
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const showReasoningSchema = z.boolean().default(true)
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const maxToolOutputLinesSchema = z.number().step(1).min(1).default(6)
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const maxQuestionOptionsSchema = z.number().step(1).min(1).default(8)
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const maxModelOptionsSchema = z.number().step(1).min(1).default(8)
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const questionDialogWidthSchema = z.number().step(1).min(20).default(200)
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const questionDialogMaxHeightSchema = z.number().step(1).min(6).default(20)
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const modelDialogWidthSchema = z.number().step(1).min(20).default(72)
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const modelDialogMaxHeightSchema = z.number().step(1).min(6).default(20)
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const showHardwareCursorSchema = z.boolean().default(false)
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const colorSchema = z.boolean().default(true)
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const titleSchema = z.string().default('DeepSeek Harness')
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/** Schemastery schema for presentation settings embedded by app bundles. */
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export const TuiConfigSchema: z<TuiConfig> = z.object({
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showReasoning: showReasoningSchema,
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maxToolOutputLines: maxToolOutputLinesSchema,
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maxQuestionOptions: maxQuestionOptionsSchema,
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maxModelOptions: maxModelOptionsSchema,
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questionDialogWidth: questionDialogWidthSchema,
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questionDialogMaxHeight: questionDialogMaxHeightSchema,
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modelDialogWidth: modelDialogWidthSchema,
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modelDialogMaxHeight: modelDialogMaxHeightSchema,
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showHardwareCursor: showHardwareCursorSchema,
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color: colorSchema,
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title: titleSchema,
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})
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/** Serializable plugin configuration. */
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export interface Config extends TuiConfig {
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/** Header subtitle. Defaults to `ready.`. */
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welcome?: string
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/** Exact shared agent/session identity driven by this terminal. Defaults to `main`. */
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sessionId?: string
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}
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export const Config: z<Config> = z.object({
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welcome: z.string().default('ready.'),
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sessionId: z.string().default('main'),
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showReasoning: showReasoningSchema,
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maxToolOutputLines: maxToolOutputLinesSchema,
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maxQuestionOptions: maxQuestionOptionsSchema,
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maxModelOptions: maxModelOptionsSchema,
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questionDialogWidth: questionDialogWidthSchema,
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questionDialogMaxHeight: questionDialogMaxHeightSchema,
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modelDialogWidth: modelDialogWidthSchema,
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modelDialogMaxHeight: modelDialogMaxHeightSchema,
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showHardwareCursor: showHardwareCursorSchema,
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color: colorSchema,
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title: titleSchema,
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})
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/** Fully defaulted TUI presentation settings. */
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export interface ResolvedTuiConfig {
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showReasoning: boolean
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maxToolOutputLines: number
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maxQuestionOptions: number
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maxModelOptions: number
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questionDialogWidth: number
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questionDialogMaxHeight: number
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modelDialogWidth: number
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modelDialogMaxHeight: number
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showHardwareCursor: boolean
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color: boolean
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title: string
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}
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/** Runtime boundary used by the interactive TUI. */
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export interface TuiRuntime {
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/** Terminal implementation; production uses pi-tui's `ProcessTerminal`. */
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terminal: Terminal
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/** Exit hook used by terminal shutdown or a target-agent startup failure. */
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exit(code: number): void
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/**
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* Override the footer's logical working-directory label without changing the session directory used by tools.
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* @param cwd - Operational working directory from the session header.
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* @returns Unescaped label; the TUI makes terminal controls visible.
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*/
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formatCwd?: (cwd: string | undefined) => string
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/** Monotonic-enough wall clock for elapsed status rendering. Defaults to `Date.now`. */
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now?(): number
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}
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/**
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* Apply direct-call defaults after Loader schema validation has normally run.
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*
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* @param config - Deployment-provided terminal presentation settings.
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* @returns Complete settings consumed by the TUI renderer.
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*/
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export function resolveTuiConfig(config: TuiConfig | undefined): ResolvedTuiConfig {
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return {
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showReasoning: config?.showReasoning ?? true,
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maxToolOutputLines: config?.maxToolOutputLines ?? 6,
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maxQuestionOptions: config?.maxQuestionOptions ?? 8,
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maxModelOptions: config?.maxModelOptions ?? 8,
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questionDialogWidth: config?.questionDialogWidth ?? 200,
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questionDialogMaxHeight: config?.questionDialogMaxHeight ?? 20,
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modelDialogWidth: config?.modelDialogWidth ?? 72,
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modelDialogMaxHeight: config?.modelDialogMaxHeight ?? 20,
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showHardwareCursor: config?.showHardwareCursor ?? false,
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color: config?.color ?? true,
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title: config?.title ?? 'DeepSeek Harness',
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}
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}
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interface Palette {
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accent: (text: string) => string
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accent2: (text: string) => string
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text: (text: string) => string
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muted: (text: string) => string
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dim: (text: string) => string
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success: (text: string) => string
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warning: (text: string) => string
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error: (text: string) => string
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code: (text: string) => string
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added: (text: string) => string
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removed: (text: string) => string
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bold: (text: string) => string
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italic: (text: string) => string
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underline: (text: string) => string
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strike: (text: string) => string
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/** Reverse video for the active selection; swaps the theme's own fg/bg so it reads on any scheme. */
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selected: (text: string) => string
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}
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function ansi(open: string, close: string, enabled: boolean): (text: string) => string {
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return enabled ? text => `\x1b[${open}m${text}\x1b[${close}m` : text => text
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}
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const TERMINAL_CONTROL_PATTERN = /[\u0000-\u0009\u000b-\u001f\u007f-\u009f]/gu
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/**
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* Escape external C0/C1 controls before pi-tui adds application-owned ANSI.
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* Line feeds remain structural so transcript and tool output retain their layout.
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*/
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function displayText(text: string): string {
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return text.replace(TERMINAL_CONTROL_PATTERN, control =>
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`\\x${control.charCodeAt(0).toString(16).padStart(2, '0')}`)
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}
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/**
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* Theme-agnostic palette built from the standard 16-color ANSI set plus SGR
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* attributes, which every terminal remaps to its active color scheme. Body
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* `text` stays the terminal's default foreground so it reads on light and dark
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* backgrounds alike; grouping uses foreground-only gutter bars and reverse
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* video rather than fixed background fills.
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*/
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function createPalette(enabled: boolean, scheme: TerminalColorScheme = 'dark'): Palette {
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return {
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accent: ansi('94', '39', enabled),
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accent2: ansi('95', '39', enabled),
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text: text => text,
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muted: ansi('90', '39', enabled),
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// SGR 2 (dim) lightens text on a light background — substitute ANSI 90
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// (bright black / gray) which renders as a readable muted tone on any scheme.
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dim: scheme === 'light' ? ansi('90', '39', enabled) : ansi('2', '22', enabled),
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success: ansi('32', '39', enabled),
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warning: ansi('33', '39', enabled),
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error: ansi('31', '39', enabled),
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// ANSI 36 (cyan) is difficult to read on a light background — use
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// ANSI 34 (blue) which is legible on both light and dark schemes.
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code: scheme === 'light' ? ansi('34', '39', enabled) : ansi('36', '39', enabled),
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added: ansi('32', '39', enabled),
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removed: ansi('31', '39', enabled),
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bold: ansi('1', '22', enabled),
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italic: ansi('3', '23', enabled),
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underline: ansi('4', '24', enabled),
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strike: ansi('9', '29', enabled),
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selected: ansi('7', '27', enabled),
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}
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}
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function markdownTheme(palette: Palette): MarkdownTheme {
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return {
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heading: text => palette.accent(text),
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link: text => palette.accent(text),
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// pi-tui requires this URL slot but its current Markdown renderer does not invoke it.
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/* v8 ignore next */
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linkUrl: text => palette.dim(text),
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code: text => palette.code(text),
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codeBlock: text => palette.text(text),
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codeBlockBorder: text => palette.dim(text),
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quote: text => palette.muted(text),
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quoteBorder: text => palette.accent2(text),
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hr: text => palette.dim(text),
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listBullet: text => palette.accent(text),
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bold: text => palette.bold(text),
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italic: text => palette.italic(text),
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strikethrough: text => palette.strike(text),
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underline: text => palette.underline(text),
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}
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}
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function selectTheme(palette: Palette): SelectListTheme {
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return {
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selectedPrefix: palette.accent,
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selectedText: palette.accent,
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description: palette.muted,
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scrollInfo: palette.dim,
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noMatch: palette.warning,
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}
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}
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function dialogSelectTheme(palette: Palette): SelectListTheme {
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return {
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...selectTheme(palette),
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selectedText: text => palette.selected(palette.accent(text)),
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}
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}
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function contentText(content: readonly ContentBlock[]): string {
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const parts: string[] = []
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for (const block of content) {
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switch (block.type) {
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case 'text':
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case 'reasoning':
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parts.push(block.text)
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break
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case 'tool-call':
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parts.push(`${block.name}(${block.arguments})`)
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break
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case 'tool-result':
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parts.push(contentText(block.content))
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break
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default: {
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const rawType = (block as { type?: unknown }).type
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parts.push(`[${typeof rawType === 'string' ? rawType : 'content'}]`)
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break
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}
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}
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}
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return parts.join('')
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}
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function textBlocks(content: readonly ContentBlock[], type: 'text' | 'reasoning'): string {
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return content
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.filter((block): block is Extract<ContentBlock, { type: typeof type }> => block.type === type)
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.map(block => block.text)
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.join('\n\n')
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}
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interface ModelChoice extends AgentLlmTarget {
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modelName: string
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description?: string
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}
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function targetLabel(target: AgentLlmTarget): string {
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return `${target.provider}/${target.model}`
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}
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function initialTarget(agent: Agent): AgentLlmTarget | undefined {
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const logged = agent.session.requestHeader()?.config
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if (logged !== undefined) return { provider: logged.provider, model: logged.model }
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if (agent.options.provider === undefined || agent.options.model === undefined) return undefined
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return { provider: agent.options.provider, model: agent.options.model }
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}
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async function readModelChoices(
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ctx: Context,
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current: AgentLlmTarget | undefined,
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): Promise<ModelChoice[]> {
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const providers = ctx.llm.listProviders()
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const groups = await Promise.all(providers.map(async (provider) => {
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const advertised = await ctx.llm.listModels(provider.id)
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const models: LlmModelInfo[] = [...advertised]
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if (
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current?.provider === provider.id
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&& !models.some(model => model.id === current.model)
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) {
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models.push({ provider: provider.id, id: current.model, name: current.model })
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}
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return models.map((model): ModelChoice => ({
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provider: provider.id,
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model: model.id,
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modelName: model.name,
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...model.description === undefined ? {} : { description: model.description },
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}))
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}))
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return groups.flat()
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}
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class HeaderComponent implements Component {
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constructor(
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private readonly agent: Agent,
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private readonly subtitle: () => string,
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private readonly palette: Palette,
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private readonly currentModel: () => string | undefined,
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) {}
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invalidate(): void {}
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render(width: number): string[] {
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const usable = Math.max(1, width - 4)
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const title = `${this.palette.bold(this.palette.accent('DEEPSEEK'))} ${this.palette.bold('HARNESS')}`
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const model = displayText(this.currentModel() ?? 'model unset')
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const detail = `${model} • ${displayText(this.agent.session.id)}`
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const top = this.palette.accent(`╭${'─'.repeat(Math.max(0, width - 2))}╮`)
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const bottom = this.palette.accent(`╰${'─'.repeat(Math.max(0, width - 2))}╯`)
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const lines = [title, this.palette.muted(displayText(this.subtitle())), this.palette.dim(detail)]
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.flatMap(line => wrapTextWithAnsi(line, usable))
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.map((line) => {
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const clipped = truncateToWidth(line, usable, '')
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return `${this.palette.accent('│')} ${clipped}${' '.repeat(Math.max(0, usable - visibleWidth(clipped)))} ${this.palette.accent('│')}`
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})
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return [top, ...lines, bottom]
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}
|
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}
|
||
|
||
/**
|
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* Groups children behind a colored left-gutter bar (`▌`). Foreground-only, so
|
||
* it renders legibly on any terminal background — unlike a filled block whose
|
||
* body text would collide with the theme's default foreground.
|
||
*/
|
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class GutterBox implements Component {
|
||
protected readonly children: Component[] = []
|
||
|
||
constructor(private readonly barFn: (text: string) => string, private readonly paddingY = 1) {}
|
||
|
||
addChild(child: Component): void {
|
||
this.children.push(child)
|
||
}
|
||
|
||
invalidate(): void {
|
||
for (const child of this.children) child.invalidate()
|
||
}
|
||
|
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render(width: number): string[] {
|
||
const inner = Math.max(1, width - 2)
|
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const body: string[] = []
|
||
for (const child of this.children) for (const line of child.render(inner)) body.push(line)
|
||
// Every caller adds a non-empty title/label child, so an all-empty box is unreachable;
|
||
// the guard preserves Box semantics (render nothing) rather than emitting stray gutter bars.
|
||
/* v8 ignore next */
|
||
if (body.length === 0) return []
|
||
const bar = this.barFn('▌')
|
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const pad = Array.from({ length: this.paddingY }, () => '')
|
||
return [...pad, ...body, ...pad].map(line => `${bar} ${line}`)
|
||
}
|
||
}
|
||
|
||
class UserMessageComponent extends GutterBox {
|
||
constructor(text: string, palette: Palette, mdTheme: MarkdownTheme, label = 'You') {
|
||
super(value => palette.accent(value))
|
||
this.addChild(new Text(palette.bold(palette.accent(displayText(label))), 0, 0))
|
||
this.addChild(new Markdown(displayText(text), 0, 0, mdTheme, { color: value => palette.text(value) }, {
|
||
preserveOrderedListMarkers: true,
|
||
preserveBackslashEscapes: true,
|
||
}))
|
||
}
|
||
}
|
||
|
||
class AssistantMessageComponent extends Container {
|
||
constructor(content: readonly ContentBlock[], showReasoning: boolean, palette: Palette, mdTheme: MarkdownTheme) {
|
||
super()
|
||
const reasoning = displayText(textBlocks(content, 'reasoning').trim())
|
||
const text = displayText(textBlocks(content, 'text').trim())
|
||
if (reasoning && showReasoning) {
|
||
this.addChild(new Spacer(1))
|
||
this.addChild(new Text(palette.italic(palette.muted('Reasoning')), 1, 0))
|
||
this.addChild(new Markdown(reasoning, 1, 0, mdTheme, {
|
||
color: value => palette.muted(value),
|
||
italic: true,
|
||
}))
|
||
}
|
||
if (text) {
|
||
this.addChild(new Spacer(1))
|
||
this.addChild(new Text(palette.bold(palette.accent2('Assistant')), 1, 0))
|
||
this.addChild(new Markdown(text, 1, 0, mdTheme, { color: value => palette.text(value) }))
|
||
}
|
||
}
|
||
}
|
||
|
||
interface StreamingBlock {
|
||
type: string
|
||
text: string
|
||
}
|
||
|
||
class StreamingAssistantComponent extends Container {
|
||
private readonly blocks = new Map<number, StreamingBlock>()
|
||
|
||
constructor(
|
||
private showReasoning: boolean,
|
||
private readonly palette: Palette,
|
||
private readonly mdTheme: MarkdownTheme,
|
||
) {
|
||
super()
|
||
}
|
||
|
||
update(chunk: StreamChunk): void {
|
||
if (chunk.type === 'block-start') {
|
||
this.blocks.set(chunk.index, { type: chunk.blockType, text: '' })
|
||
} else if (chunk.type === 'text-delta' || chunk.type === 'reasoning-delta') {
|
||
const type = chunk.type === 'text-delta' ? 'text' : 'reasoning'
|
||
const block = this.blocks.get(chunk.index) ?? { type, text: '' }
|
||
block.text += chunk.text
|
||
this.blocks.set(chunk.index, block)
|
||
} else if (chunk.type === 'block-end' && (chunk.block.type === 'text' || chunk.block.type === 'reasoning')) {
|
||
this.blocks.set(chunk.index, { type: chunk.block.type, text: chunk.block.text })
|
||
}
|
||
this.rebuild()
|
||
}
|
||
|
||
setShowReasoning(show: boolean): void {
|
||
this.showReasoning = show
|
||
this.rebuild()
|
||
}
|
||
|
||
private rebuild(): void {
|
||
this.clear()
|
||
const content: ContentBlock[] = [...this.blocks.entries()]
|
||
.sort(([left], [right]) => left - right)
|
||
.flatMap<ContentBlock>(([, block]) => {
|
||
if (block.type === 'text') return [{ type: 'text', text: block.text }]
|
||
if (block.type === 'reasoning') return [{ type: 'reasoning', text: block.text }]
|
||
return []
|
||
})
|
||
const component = new AssistantMessageComponent(content, this.showReasoning, this.palette, this.mdTheme)
|
||
for (const child of component.children) this.addChild(child)
|
||
}
|
||
}
|
||
|
||
interface ParsedArguments {
|
||
value: unknown
|
||
valid: boolean
|
||
}
|
||
|
||
function parseArguments(raw: string): ParsedArguments {
|
||
try {
|
||
return { value: JSON.parse(raw), valid: true }
|
||
} catch {
|
||
return { value: raw, valid: false }
|
||
}
|
||
}
|
||
|
||
function pretty(value: unknown): string {
|
||
if (typeof value === 'string') return displayText(value)
|
||
// The lib declaration narrows `unknown` to a string-returning overload, but
|
||
// JSON.stringify returns undefined for runtime values such as symbols.
|
||
const serialized = JSON.stringify(value, null, 2) as string | undefined
|
||
return displayText(serialized ?? String(value))
|
||
}
|
||
|
||
function diffLines(diff: FileDiff, palette: Palette): string[] {
|
||
const lines = [palette.bold(displayText(diff.path))]
|
||
if (diff.oldText !== null) {
|
||
for (const line of displayText(diff.oldText).split('\n')) lines.push(palette.removed(`- ${line}`))
|
||
}
|
||
for (const line of displayText(diff.newText).split('\n')) lines.push(palette.added(`+ ${line}`))
|
||
return lines
|
||
}
|
||
|
||
class ToolCardComponent implements Component {
|
||
private result: { content: ContentBlock[]; isError: boolean; meta?: unknown } | undefined
|
||
private expanded = false
|
||
private callView: ToolCallView
|
||
private resultView: ToolResultView | undefined
|
||
|
||
constructor(
|
||
private readonly name: string,
|
||
private readonly parsed: ParsedArguments,
|
||
private readonly definition: ToolDefinition | undefined,
|
||
private readonly maxOutputLines: number,
|
||
private readonly palette: Palette,
|
||
) {
|
||
this.callView = this.presentCall()
|
||
}
|
||
|
||
private presentCall(): ToolCallView {
|
||
if (this.parsed.valid && this.definition?.presentCall) {
|
||
try {
|
||
const view = this.definition.presentCall(this.parsed.value)
|
||
if (view !== undefined) return view
|
||
} catch (error: unknown) {
|
||
return { card: 'generic', title: displayText(this.name), rawInput: `Presenter failed: ${String(error)}` }
|
||
}
|
||
}
|
||
return { card: 'generic', title: displayText(this.name), rawInput: this.parsed.value }
|
||
}
|
||
|
||
updateResult(event: Extract<SessionEvent, { type: 'tool/result' }>['data']): void {
|
||
this.result = {
|
||
content: [...event.content],
|
||
isError: event.isError,
|
||
...event.meta !== undefined ? { meta: event.meta } : {},
|
||
}
|
||
if (this.parsed.valid && this.definition?.presentResult) {
|
||
try {
|
||
const view = this.definition.presentResult(this.parsed.value, this.result)
|
||
if (view !== undefined) this.resultView = view
|
||
} catch (error: unknown) {
|
||
this.resultView = { card: 'generic', content: [{ type: 'text', text: `Presenter failed: ${String(error)}` }] }
|
||
}
|
||
}
|
||
}
|
||
|
||
setExpanded(expanded: boolean): void {
|
||
this.expanded = expanded
|
||
}
|
||
|
||
invalidate(): void {}
|
||
|
||
render(width: number): string[] {
|
||
const isError = this.result?.isError ?? false
|
||
const glyph = this.result === undefined ? this.palette.warning('◌') : isError ? this.palette.error('✕') : this.palette.success('✓')
|
||
const body = this.renderBody()
|
||
const title = truncateToWidth(`${glyph} ${displayText(this.title())}`, Math.max(1, width - 4), '')
|
||
const headLines = Math.ceil(this.maxOutputLines / 2)
|
||
const tailLines = this.maxOutputLines - headLines
|
||
const visibleBody = this.expanded || body.length <= this.maxOutputLines
|
||
? body
|
||
: [
|
||
...body.slice(0, headLines),
|
||
this.palette.dim(`… +${body.length - this.maxOutputLines} lines (Ctrl+O to expand)`),
|
||
...body.slice(body.length - tailLines),
|
||
]
|
||
const barFn = this.result === undefined
|
||
? this.palette.warning
|
||
: isError ? this.palette.error : this.palette.success
|
||
const box = new GutterBox(barFn, visibleBody.length > 0 ? 1 : 0)
|
||
box.addChild(new Text(this.palette.bold(title), 0, 0))
|
||
if (visibleBody.length > 0) box.addChild(new Text(visibleBody.join('\n'), 0, 0))
|
||
return box.render(width)
|
||
}
|
||
|
||
private title(): string {
|
||
return this.resultView?.title ?? this.callView.title
|
||
}
|
||
|
||
private renderBody(): string[] {
|
||
const view = this.resultView ?? this.callView
|
||
if (view.card === 'terminal') {
|
||
const pending = this.callView.card === 'terminal' ? this.callView : undefined
|
||
const lines: string[] = []
|
||
if (pending?.description) lines.push(this.palette.muted(displayText(pending.description)))
|
||
if (pending?.cwd) lines.push(this.palette.dim(displayText(pending.cwd)))
|
||
if (this.resultView?.card === 'terminal') {
|
||
if (this.resultView.output) lines.push(...displayText(this.resultView.output).split('\n'))
|
||
if (this.resultView.exitCode !== undefined) lines.push(this.palette.dim(`[exit ${this.resultView.exitCode}]`))
|
||
if (this.resultView.signal !== undefined) {
|
||
lines.push(this.palette.error(`[signal ${displayText(this.resultView.signal)}]`))
|
||
}
|
||
} else if (this.result === undefined) {
|
||
// A pending terminal view is the call view itself; TerminalCallView requires a title.
|
||
lines.push(this.palette.code(`$ ${displayText((pending as TerminalCallView).title)}`))
|
||
} else {
|
||
lines.push(...displayText(contentText(this.result.content)).split('\n'))
|
||
}
|
||
return lines.filter(Boolean)
|
||
}
|
||
if (view.card === 'diff') {
|
||
return view.diffs.flatMap((diff, index) => [
|
||
...index > 0 ? [''] : [],
|
||
...diffLines(diff, this.palette),
|
||
])
|
||
}
|
||
const content = view.content ?? this.result?.content
|
||
const lines: string[] = []
|
||
if (content !== undefined) lines.push(...displayText(contentText(content)).split('\n'))
|
||
const rawInput = this.result === undefined && this.callView.card === 'generic'
|
||
? this.callView.rawInput
|
||
: undefined
|
||
if (rawInput !== undefined) lines.push(...pretty(rawInput).split('\n'))
|
||
return lines.filter((line, index, all) => line.length > 0 || (index > 0 && index < all.length - 1))
|
||
}
|
||
}
|
||
|
||
class TodoComponent implements Component {
|
||
private todos: readonly TodoItem[] = []
|
||
|
||
constructor(private readonly palette: Palette) {}
|
||
|
||
update(todos: readonly TodoItem[]): void {
|
||
this.todos = todos
|
||
}
|
||
|
||
invalidate(): void {}
|
||
|
||
render(width: number): string[] {
|
||
if (this.todos.length === 0) return []
|
||
const lines = [this.palette.bold(this.palette.accent('Plan'))]
|
||
for (const todo of this.todos) {
|
||
const prefix = todo.status === 'completed'
|
||
? this.palette.success('✓')
|
||
: todo.status === 'in_progress'
|
||
? this.palette.warning('●')
|
||
: this.palette.dim('○')
|
||
const content = displayText(todo.content)
|
||
const text = todo.status === 'completed' ? this.palette.muted(content) : content
|
||
lines.push(truncateToWidth(` ${prefix} ${text}`, width, ''))
|
||
}
|
||
return ['', ...lines]
|
||
}
|
||
}
|
||
|
||
function formatTokens(value: number): string {
|
||
if (value < 1_000) return String(value)
|
||
if (value < 10_000) return `${(value / 1_000).toFixed(1)}k`
|
||
if (value < 1_000_000) return `${Math.round(value / 1_000)}k`
|
||
return `${(value / 1_000_000).toFixed(1)}m`
|
||
}
|
||
|
||
function formatCwd(cwd: string | undefined): string {
|
||
if (cwd === undefined) return 'cwd unset'
|
||
const home = homedir()
|
||
const rel = relative(resolve(home), resolve(cwd))
|
||
if (rel === '') return '~'
|
||
/* v8 ignore next -- Windows cross-drive coverage; POSIX relative() cannot return an absolute path. */
|
||
if (isAbsolute(rel)) return cwd
|
||
if (rel !== '..' && !rel.startsWith(`..${sep}`)) return `~${sep}${rel}`
|
||
return cwd
|
||
}
|
||
|
||
interface SessionTokenTotals {
|
||
input: number
|
||
output: number
|
||
readonly byStep: Map<string, TokenUsage>
|
||
}
|
||
|
||
function recordTokenUsage(totals: SessionTokenTotals, turn: number, step: number, usage: TokenUsage): void {
|
||
const key = `${turn}:${step}`
|
||
const previous = totals.byStep.get(key)
|
||
if (previous !== undefined) {
|
||
totals.input -= previous.inputTokens
|
||
totals.output -= previous.outputTokens
|
||
}
|
||
totals.byStep.set(key, usage)
|
||
totals.input += usage.inputTokens
|
||
totals.output += usage.outputTokens
|
||
}
|
||
|
||
function recordEventUsage(totals: SessionTokenTotals, event: SessionEvent): void {
|
||
if (event.type === 'assistant/chunk' && event.data.chunk.type === 'usage') {
|
||
recordTokenUsage(totals, event.data.turn, event.data.step, event.data.chunk.usage)
|
||
} else if (event.type === 'assistant/message' && event.data.usage !== undefined) {
|
||
recordTokenUsage(totals, event.data.turn, event.data.step, event.data.usage)
|
||
}
|
||
}
|
||
|
||
function sessionTokens(session: Session): SessionTokenTotals {
|
||
const totals: SessionTokenTotals = { input: 0, output: 0, byStep: new Map() }
|
||
for (const event of session.events) {
|
||
recordEventUsage(totals, event)
|
||
}
|
||
return totals
|
||
}
|
||
|
||
class FooterComponent implements Component {
|
||
constructor(
|
||
private readonly agent: Agent,
|
||
private readonly palette: Palette,
|
||
private readonly toolsExpanded: () => boolean,
|
||
private readonly showReasoning: () => boolean,
|
||
private readonly tokens: () => { input: number; output: number },
|
||
private readonly cwdFormatter: TuiRuntime['formatCwd'],
|
||
private readonly currentModel: () => string | undefined,
|
||
private readonly contextPercent: () => number | undefined,
|
||
private readonly runningSeconds: () => number,
|
||
) {}
|
||
|
||
invalidate(): void {}
|
||
|
||
render(width: number): string[] {
|
||
if (this.agent.status === 'running') {
|
||
const interrupt = this.palette.dim('esc interrupt')
|
||
const activityAvailable = Math.max(0, width - visibleWidth(interrupt) - 1)
|
||
const activity = truncateToWidth(this.palette.accent(`◒ Working · ${this.runningSeconds()}s`), activityAvailable, '')
|
||
const gap = ' '.repeat(Math.max(0, width - visibleWidth(activity) - visibleWidth(interrupt)))
|
||
return [`${activity}${gap}${interrupt}`]
|
||
}
|
||
const { input, output } = this.tokens()
|
||
const counters = `↑${formatTokens(input)} ↓${formatTokens(output)}`
|
||
const model = displayText(this.currentModel() ?? 'model unset')
|
||
const modelState = `${model}(reasoning:${this.showReasoning() ? 'on' : 'off'})`
|
||
const contextPercent = this.contextPercent()
|
||
const context = contextPercent === undefined ? 'context unknown' : `${contextPercent}% context`
|
||
const fullRight = `${context} tools:${this.toolsExpanded() ? 'expanded' : 'compact'} ${modelState}`
|
||
const compactRight = `${context} ${modelState}`
|
||
const formattedCwd = displayText(
|
||
this.cwdFormatter?.(this.agent.session.header.cwd) ?? formatCwd(this.agent.session.header.cwd),
|
||
)
|
||
if (visibleWidth(counters) + visibleWidth(compactRight) + 1 > width) {
|
||
const compact = truncateToWidth(compactRight, width, '')
|
||
return [`${' '.repeat(Math.max(0, width - visibleWidth(compact)))}${this.palette.dim(compact)}`]
|
||
}
|
||
const rightAvailable = width - visibleWidth(counters) - 1
|
||
const right = visibleWidth(fullRight) <= rightAvailable ? fullRight : compactRight
|
||
const rightClipped = truncateToWidth(right, rightAvailable, '')
|
||
const cwdAvailable = Math.max(0, width - visibleWidth(counters) - visibleWidth(rightClipped) - 3)
|
||
const cwd = truncateToWidth(formattedCwd, cwdAvailable, '')
|
||
const left = [cwd, counters].filter(Boolean).join(' ')
|
||
const gap = ' '.repeat(Math.max(0, width - visibleWidth(left) - visibleWidth(rightClipped)))
|
||
return [`${this.palette.dim(left)}${gap}${this.palette.dim(rightClipped)}`]
|
||
}
|
||
}
|
||
|
||
interface QuestionSelection {
|
||
selected: string[]
|
||
custom?: string
|
||
}
|
||
|
||
function renderDialog(
|
||
title: string,
|
||
body: readonly string[],
|
||
width: number,
|
||
palette: Palette,
|
||
): string[] {
|
||
const innerWidth = Math.max(1, width - 4)
|
||
const topLabel = ` ${displayText(title)} `
|
||
const top = `╭${topLabel}${'─'.repeat(Math.max(0, width - visibleWidth(topLabel) - 2))}╮`
|
||
const lines: string[] = [palette.accent(top)]
|
||
for (const line of body) {
|
||
const clipped = truncateToWidth(line, innerWidth, '')
|
||
lines.push(`${palette.accent('│')} ${clipped}${' '.repeat(Math.max(0, innerWidth - visibleWidth(clipped)))} ${palette.accent('│')}`)
|
||
}
|
||
lines.push(palette.accent(`╰${'─'.repeat(Math.max(0, width - 2))}╯`))
|
||
return lines
|
||
}
|
||
|
||
class ModelDialog implements Component {
|
||
private readonly list: SelectList
|
||
|
||
constructor(
|
||
choices: readonly ModelChoice[],
|
||
current: AgentLlmTarget | undefined,
|
||
maxVisible: number,
|
||
private readonly palette: Palette,
|
||
done: (choice: ModelChoice) => void,
|
||
cancel: () => void,
|
||
) {
|
||
this.list = new SelectList(choices.map(choice => ({
|
||
value: targetLabel(choice),
|
||
label: displayText(targetLabel(choice)),
|
||
description: [
|
||
displayText(choice.modelName),
|
||
...choice.description === undefined ? [] : [displayText(choice.description)],
|
||
...current?.provider === choice.provider && current.model === choice.model ? ['current'] : [],
|
||
].join(' — '),
|
||
})), maxVisible, dialogSelectTheme(palette))
|
||
const currentIndex = current === undefined
|
||
? 0
|
||
: choices.findIndex(choice => choice.provider === current.provider && choice.model === current.model)
|
||
this.list.setSelectedIndex(currentIndex)
|
||
this.list.onSelect = (item) => {
|
||
const selected = choices.find(choice => targetLabel(choice) === item.value)
|
||
/* v8 ignore next -- SelectList only returns values built from `choices`. */
|
||
if (selected === undefined) return
|
||
done(selected)
|
||
}
|
||
this.list.onCancel = cancel
|
||
}
|
||
|
||
invalidate(): void {
|
||
this.list.invalidate()
|
||
}
|
||
|
||
handleInput(data: string): void {
|
||
this.list.handleInput(data)
|
||
this.invalidate()
|
||
}
|
||
|
||
render(width: number): string[] {
|
||
const innerWidth = Math.max(1, width - 4)
|
||
return renderDialog('Select model', [
|
||
...this.list.render(innerWidth),
|
||
'',
|
||
this.palette.dim('↑/↓ navigate • Enter select • Esc cancel'),
|
||
], width, this.palette)
|
||
}
|
||
}
|
||
|
||
class QuestionDialog implements Component, Focusable {
|
||
private selectedIndex = 0
|
||
private selected = new Set<number>()
|
||
private mode: 'options' | 'custom'
|
||
private error = ''
|
||
private readonly input = new Input()
|
||
private readonly options: NonNullable<AskUserQuestionItem['options']>
|
||
focused = false
|
||
|
||
constructor(
|
||
private readonly question: AskUserQuestionItem,
|
||
private readonly position: number,
|
||
private readonly total: number,
|
||
private readonly unanswered: number,
|
||
private readonly maxVisible: number,
|
||
private readonly palette: Palette,
|
||
private readonly done: (selection: QuestionSelection) => void,
|
||
private readonly cancel: () => void,
|
||
) {
|
||
this.options = question.options ?? []
|
||
this.mode = this.options.length > 0 ? 'options' : 'custom'
|
||
this.input.onSubmit = (value) => { this.submitCustom(value) }
|
||
this.input.onEscape = () => {
|
||
if (this.options.length > 0) {
|
||
this.mode = 'options'
|
||
this.error = ''
|
||
} else {
|
||
this.cancel()
|
||
}
|
||
}
|
||
}
|
||
|
||
invalidate(): void {
|
||
this.input.invalidate()
|
||
}
|
||
|
||
handleInput(data: string): void {
|
||
this.invalidate()
|
||
if (this.mode === 'custom') {
|
||
this.input.focused = this.focused
|
||
this.input.handleInput(data)
|
||
return
|
||
}
|
||
const options = this.options
|
||
if (matchesKey(data, Key.up)) {
|
||
this.selectedIndex = this.selectedIndex === 0 ? options.length - 1 : this.selectedIndex - 1
|
||
} else if (matchesKey(data, Key.down)) {
|
||
this.selectedIndex = this.selectedIndex === options.length - 1 ? 0 : this.selectedIndex + 1
|
||
} else if (matchesKey(data, Key.space) && this.question.multiSelect) {
|
||
if (this.selected.has(this.selectedIndex)) this.selected.delete(this.selectedIndex)
|
||
else this.selected.add(this.selectedIndex)
|
||
} else if (matchesKey(data, Key.enter)) {
|
||
const indices = this.question.multiSelect ? [...this.selected].sort((a, b) => a - b) : [this.selectedIndex]
|
||
if (indices.length === 0) {
|
||
this.error = 'Select at least one option, or press Tab for a custom answer.'
|
||
return
|
||
}
|
||
this.done({ selected: indices.map(index => options[index]?.label).filter((label): label is string => label !== undefined) })
|
||
} else if (matchesKey(data, Key.tab) || data.toLowerCase() === 'c') {
|
||
this.mode = 'custom'
|
||
this.error = ''
|
||
} else if (matchesKey(data, Key.escape) || matchesKey(data, Key.ctrl('c'))) {
|
||
this.cancel()
|
||
}
|
||
}
|
||
|
||
private submitCustom(value: string): void {
|
||
const custom = value.trim()
|
||
if (custom === '') {
|
||
this.error = 'Enter an answer before submitting.'
|
||
return
|
||
}
|
||
this.done({ selected: [], custom })
|
||
}
|
||
|
||
render(width: number): string[] {
|
||
this.input.focused = this.focused
|
||
const innerWidth = Math.max(1, width - 4)
|
||
const header = `Question ${this.position}/${this.total} (${this.unanswered} unanswered)${this.question.header === undefined ? '' : ` · ${displayText(this.question.header)}`}`
|
||
const lines = [
|
||
this.palette.muted(header),
|
||
...wrapTextWithAnsi(this.palette.text(displayText(this.question.question)), innerWidth),
|
||
'',
|
||
]
|
||
const push = (line: string): void => { lines.push(line) }
|
||
if (this.mode === 'custom') {
|
||
for (const line of this.input.render(innerWidth)) push(line)
|
||
push(this.palette.dim(this.options.length > 0 ? 'Enter submit • Esc options' : 'Enter submit • Esc cancel'))
|
||
} else {
|
||
const options = this.options
|
||
const start = Math.max(0, Math.min(
|
||
this.selectedIndex - Math.floor(this.maxVisible / 2),
|
||
options.length - this.maxVisible,
|
||
))
|
||
const end = Math.min(options.length, start + this.maxVisible)
|
||
const optionRows = options.slice(start, end).map((option, offset) => {
|
||
const index = start + offset
|
||
const mark = this.question.multiSelect
|
||
? this.selected.has(index) ? '[x] ' : '[ ] '
|
||
: ''
|
||
return `${index === this.selectedIndex ? '›' : ' '} ${index + 1}. ${mark}${displayText(option.label)}`
|
||
})
|
||
const descriptionColumn = Math.min(
|
||
Math.max(...optionRows.map(row => visibleWidth(row))) + 2,
|
||
Math.max(1, Math.floor(innerWidth * 0.55)),
|
||
)
|
||
for (let index = start; index < end; index += 1) {
|
||
// `index < end <= options.length`; the options array is borrowed immutably for this dialog.
|
||
const option = options[index] as NonNullable<AskUserQuestionItem['options']>[number]
|
||
const mark = this.question.multiSelect
|
||
? this.selected.has(index) ? '[x] ' : '[ ] '
|
||
: ''
|
||
const left = `${index === this.selectedIndex ? '›' : ' '} ${index + 1}. ${mark}${displayText(option.label)}`
|
||
const leftStyled = index === this.selectedIndex
|
||
? this.palette.bold(this.palette.accent(left))
|
||
: left
|
||
const description = option.description === undefined
|
||
? ''
|
||
: `${' '.repeat(Math.max(1, descriptionColumn - visibleWidth(left)))}${this.palette.muted(displayText(option.description))}`
|
||
push(`${leftStyled}${description}`)
|
||
}
|
||
if (options.length > this.maxVisible) push(this.palette.dim(`${this.selectedIndex + 1}/${options.length}`))
|
||
const hint = this.palette.dim(this.question.multiSelect
|
||
? 'Tab custom answer • ↑/↓ navigate • Space toggle • Enter submit • Esc interrupt'
|
||
: 'Tab custom answer • ↑/↓ navigate • Enter submit • Esc interrupt')
|
||
for (const line of wrapTextWithAnsi(hint, innerWidth)) push(line)
|
||
}
|
||
if (this.error) {
|
||
for (const line of wrapTextWithAnsi(this.palette.error(this.error), innerWidth)) push(line)
|
||
}
|
||
return ['', ...lines, ''].map((line) => {
|
||
const clipped = truncateToWidth(line, innerWidth, '')
|
||
return ` ${clipped}${' '.repeat(Math.max(0, innerWidth - visibleWidth(clipped)))} `
|
||
})
|
||
}
|
||
}
|
||
|
||
interface PendingQuestion {
|
||
request: AskUserQuestionRequest
|
||
index: number
|
||
answers: AskUserQuestionAnswerItem[]
|
||
resolve(answer: AskUserQuestionAnswer): void
|
||
reject(error: unknown): void
|
||
onAbort: () => void
|
||
overlay: OverlayHandle | undefined
|
||
}
|
||
|
||
/** Lifecycle handle for a mounted interactive terminal channel. */
|
||
export interface TuiController {
|
||
/** Stop rendering, restore the terminal, and reject pending questions. */
|
||
dispose(): Promise<void>
|
||
}
|
||
|
||
function activeSurfaceSeqs(session: Session): Set<number> {
|
||
return new Set(session.surface.nodes)
|
||
}
|
||
|
||
function activeToolCallIds(session: Session, active: ReadonlySet<number>): Set<string> {
|
||
const ids = new Set<string>()
|
||
for (const event of session.events) {
|
||
if (event.type !== 'assistant/message' || !active.has(event.seq)) continue
|
||
for (const block of event.data.content) {
|
||
if (block.type === 'tool-call') ids.add(block.id)
|
||
}
|
||
}
|
||
return ids
|
||
}
|
||
|
||
/**
|
||
* Start the interactive pi-tui channel for an already-created target agent.
|
||
* @param ctx - agent, tools, session-event, and user-interaction context.
|
||
* @param config - target agent, banner, and TUI presentation config.
|
||
* @param runtime - terminal and process-exit boundary.
|
||
* @returns lifecycle controller used by the Cordis effect disposer.
|
||
*/
|
||
export function createTuiChat(
|
||
ctx: Context,
|
||
config: Config,
|
||
runtime: TuiRuntime,
|
||
): TuiController {
|
||
const sessionId = SessionId(config.sessionId ?? 'main')
|
||
const agent = ctx.agents.get(sessionId)
|
||
if (agent === undefined) throw new Error(`ui-tui: session "${sessionId}" is not running`)
|
||
const resolved = resolveTuiConfig(config)
|
||
const palette = createPalette(resolved.color)
|
||
const mdTheme = markdownTheme(palette)
|
||
const ui = new TUI(runtime.terminal, resolved.showHardwareCursor)
|
||
const chat = new Container()
|
||
const todoContainer = new Container()
|
||
const editor = new Editor(ui, {
|
||
borderColor: palette.dim,
|
||
selectList: selectTheme(palette),
|
||
} satisfies EditorTheme, { paddingX: 1 })
|
||
const todo = new TodoComponent(palette)
|
||
let showReasoning = resolved.showReasoning
|
||
let toolsExpanded = false
|
||
let streaming: StreamingAssistantComponent | undefined
|
||
let runningStartedAt: number | undefined
|
||
let statusTicker: ReturnType<typeof setInterval> | undefined
|
||
let disposed = false
|
||
let shuttingDown: Promise<void> | undefined
|
||
const tokens = sessionTokens(agent.session)
|
||
const toolCards = new Map<string, ToolCardComponent>()
|
||
const allToolCards = new Set<ToolCardComponent>()
|
||
const liveErrors = new Set<string>()
|
||
const questionQueue: PendingQuestion[] = []
|
||
const commandControllers = new Set<AbortController>()
|
||
let activeQuestion: PendingQuestion | undefined
|
||
let modelOverlay: OverlayHandle | undefined
|
||
const target: AgentLlmTargetRef = { current: initialTarget(agent), assembled: undefined }
|
||
let contextWindow: number | undefined
|
||
let contextResolution: Promise<
|
||
| { readonly kind: 'resolved'; readonly contextWindow: number | undefined }
|
||
| { readonly kind: 'error'; readonly error: unknown }
|
||
> | undefined
|
||
let modelCommands = Promise.resolve()
|
||
const now = (): number => runtime.now?.() ?? Date.now()
|
||
|
||
const welcome = config.welcome ?? 'ready.'
|
||
let sessionTitle = foldSessionTitle(agent.session.events)?.title
|
||
const header = new HeaderComponent(agent, () => sessionTitle ?? welcome, palette, () => target.current?.model)
|
||
const footer = new FooterComponent(
|
||
agent,
|
||
palette,
|
||
() => toolsExpanded,
|
||
() => showReasoning,
|
||
() => tokens,
|
||
runtime.formatCwd,
|
||
() => target.current?.model,
|
||
() => contextWindow === undefined
|
||
? undefined
|
||
: Math.min(100, Math.round(ctx.tokenMeter.measure(agent.session).totalTokens / contextWindow * 100)),
|
||
() => runningStartedAt === undefined ? 0 : Math.max(0, Math.floor((now() - runningStartedAt) / 1_000)),
|
||
)
|
||
ui.addChild(header)
|
||
ui.addChild(chat)
|
||
todoContainer.addChild(todo)
|
||
ui.addChild(todoContainer)
|
||
ui.addChild(editor)
|
||
ui.addChild(footer)
|
||
ui.setFocus(editor)
|
||
const updateTerminalTitle = (): void => {
|
||
runtime.terminal.setTitle(displayText(
|
||
sessionTitle === undefined ? resolved.title : `${sessionTitle} — ${resolved.title}`,
|
||
))
|
||
}
|
||
updateTerminalTitle()
|
||
|
||
const requestRender = (): void => {
|
||
footer.invalidate()
|
||
ui.requestRender()
|
||
}
|
||
|
||
const appendNotice = (message: string, kind: 'info' | 'warning' | 'error' = 'info'): void => {
|
||
const color = kind === 'error' ? palette.error : kind === 'warning' ? palette.warning : palette.muted
|
||
chat.addChild(new Spacer(1))
|
||
chat.addChild(new Text(color(displayText(message)), 1, 0))
|
||
requestRender()
|
||
}
|
||
|
||
const disposeTargetListeners = installAgentLlmTarget(agent.ctx, target)
|
||
|
||
const resolveContextWindow = (selected: AgentLlmTarget | undefined): void => {
|
||
contextWindow = undefined
|
||
const resolution = selected === undefined
|
||
? Promise.resolve({ kind: 'resolved', contextWindow: undefined } as const)
|
||
: ctx.llm.resolveModelContext(selected.provider, selected.model).then(
|
||
context => ({ kind: 'resolved', contextWindow: context?.contextWindow } as const),
|
||
(error: unknown) => ({ kind: 'error', error } as const),
|
||
)
|
||
contextResolution = resolution
|
||
void resolution.then((result) => {
|
||
if (contextResolution !== resolution) return
|
||
if (result.kind === 'error') {
|
||
appendNotice(`Could not resolve model context: ${errorChain(result.error)}`, 'error')
|
||
return
|
||
}
|
||
contextWindow = result.contextWindow
|
||
requestRender()
|
||
})
|
||
}
|
||
resolveContextWindow(target.current)
|
||
|
||
const selectModel = (selected: ModelChoice): void => {
|
||
if (target.current?.provider === selected.provider && target.current.model === selected.model) {
|
||
appendNotice(`Model is already ${targetLabel(selected)}.`)
|
||
return
|
||
}
|
||
target.current = { provider: selected.provider, model: selected.model }
|
||
resolveContextWindow(target.current)
|
||
appendNotice(`Model selected: ${targetLabel(selected)}. New steps will use it.`)
|
||
}
|
||
|
||
const showModelSelector = (choices: readonly ModelChoice[]): void => {
|
||
const current = target.current === undefined ? 'unset' : targetLabel(target.current)
|
||
if (choices.length === 0) {
|
||
appendNotice(`Current model: ${current}\nNo models are advertised by registered providers.`, 'warning')
|
||
return
|
||
}
|
||
modelOverlay?.hide()
|
||
modelOverlay = undefined
|
||
const close = (): void => {
|
||
modelOverlay?.hide()
|
||
modelOverlay = undefined
|
||
requestRender()
|
||
}
|
||
const dialog = new ModelDialog(
|
||
choices,
|
||
target.current,
|
||
resolved.maxModelOptions,
|
||
palette,
|
||
(selected) => {
|
||
close()
|
||
selectModel(selected)
|
||
},
|
||
close,
|
||
)
|
||
modelOverlay = ui.showOverlay(dialog, {
|
||
width: resolved.modelDialogWidth,
|
||
maxHeight: resolved.modelDialogMaxHeight,
|
||
anchor: 'center',
|
||
margin: 1,
|
||
})
|
||
requestRender()
|
||
}
|
||
|
||
const handleModelCommand = async (raw: string): Promise<void> => {
|
||
const choices = await readModelChoices(ctx, target.current)
|
||
if (disposed) return
|
||
const argument = raw.trim()
|
||
if (argument === '') {
|
||
showModelSelector(choices)
|
||
return
|
||
}
|
||
const parts = argument.split(/\s+/u)
|
||
if (parts.length > 2) {
|
||
appendNotice('Usage: /model [provider/]model', 'warning')
|
||
return
|
||
}
|
||
|
||
let matches: ModelChoice[]
|
||
if (parts.length === 2) {
|
||
matches = choices.filter(choice => choice.provider === parts[0] && choice.model === parts[1])
|
||
} else {
|
||
const value = argument
|
||
const qualified = choices.filter(choice => targetLabel(choice) === value)
|
||
matches = qualified.length > 0 ? qualified : choices.filter(choice => choice.model === value)
|
||
}
|
||
if (matches.length === 0) {
|
||
appendNotice(`Unknown model: ${argument}. Run /model to list available models.`, 'warning')
|
||
return
|
||
}
|
||
if (matches.length > 1) {
|
||
appendNotice(`Model "${argument}" is advertised by multiple providers; use /model <provider>/<model>.`, 'warning')
|
||
return
|
||
}
|
||
const selected = matches[0]
|
||
/* v8 ignore next -- a non-empty matches array always has index zero. */
|
||
if (selected === undefined) return
|
||
selectModel(selected)
|
||
}
|
||
|
||
const queueModelCommand = (raw: string): void => {
|
||
modelCommands = modelCommands.then(async () => {
|
||
await handleModelCommand(raw)
|
||
}).catch((error: unknown) => {
|
||
if (!disposed) appendNotice(`Could not read the model catalog: ${errorChain(error)}`, 'error')
|
||
})
|
||
}
|
||
|
||
const clearStatus = (): void => {
|
||
if (statusTicker !== undefined) clearInterval(statusTicker)
|
||
statusTicker = undefined
|
||
runningStartedAt = undefined
|
||
runtime.terminal.setProgress(false)
|
||
}
|
||
|
||
const setStatus = (status: AgentStatus): void => {
|
||
clearStatus()
|
||
editor.borderColor = status === 'running' ? text => palette.accent(text) : text => palette.dim(text)
|
||
if (status === 'running') {
|
||
runningStartedAt = now()
|
||
statusTicker = setInterval(requestRender, 1_000)
|
||
statusTicker.unref()
|
||
runtime.terminal.setProgress(true)
|
||
}
|
||
requestRender()
|
||
}
|
||
|
||
const parsedTool = (event: Extract<SessionEvent, { type: 'tool/call' }>): ToolCardComponent => {
|
||
const parsed = parseArguments(event.data.arguments)
|
||
const card = new ToolCardComponent(
|
||
event.data.name,
|
||
parsed,
|
||
ctx.tools.get(event.data.name, agent),
|
||
resolved.maxToolOutputLines,
|
||
palette,
|
||
)
|
||
card.setExpanded(toolsExpanded)
|
||
toolCards.set(event.data.callId, card)
|
||
allToolCards.add(card)
|
||
return card
|
||
}
|
||
|
||
const clearStreaming = (): void => {
|
||
if (streaming === undefined) return
|
||
const index = chat.children.indexOf(streaming)
|
||
/* v8 ignore next -- streaming is assigned only after the same component is added, and every removal clears it. */
|
||
if (index >= 0) chat.children.splice(index, 1)
|
||
streaming = undefined
|
||
}
|
||
|
||
const renderEvent = (event: SessionEvent, options: { addHistory: boolean; renderChunks: boolean }): void => {
|
||
switch (event.type) {
|
||
case 'user/message': {
|
||
const text = displayText(contentText(event.data.content).trim())
|
||
if (text) {
|
||
chat.addChild(new Spacer(1))
|
||
chat.addChild(new UserMessageComponent(text, palette, mdTheme))
|
||
if (options.addHistory) editor.addToHistory(text)
|
||
}
|
||
break
|
||
}
|
||
case 'steering/message': {
|
||
const text = displayText(contentText(event.data.content).trim())
|
||
if (text) {
|
||
chat.addChild(new Spacer(1))
|
||
chat.addChild(new UserMessageComponent(text, palette, mdTheme, 'Steering'))
|
||
}
|
||
break
|
||
}
|
||
case 'context/message': {
|
||
const text = displayText(contentText(event.data.content).trim())
|
||
if (text) {
|
||
const source = event.data.source.kind === 'plugin' ? event.data.source.plugin : event.data.source.kind
|
||
chat.addChild(new Spacer(1))
|
||
chat.addChild(new Text(palette.dim(`Context · ${displayText(source)}`), 1, 0))
|
||
chat.addChild(new Text(palette.muted(text), 1, 0))
|
||
}
|
||
break
|
||
}
|
||
case 'prompt/blocked':
|
||
appendNotice(`Prompt blocked: ${event.data.reason}`, 'warning')
|
||
break
|
||
case 'assistant/chunk':
|
||
if (options.renderChunks) {
|
||
if (streaming === undefined) {
|
||
streaming = new StreamingAssistantComponent(showReasoning, palette, mdTheme)
|
||
chat.addChild(streaming)
|
||
}
|
||
streaming.update(event.data.chunk)
|
||
}
|
||
break
|
||
case 'assistant/message': {
|
||
clearStreaming()
|
||
const component = new AssistantMessageComponent(event.data.content, showReasoning, palette, mdTheme)
|
||
if (component.children.length > 0) chat.addChild(component)
|
||
break
|
||
}
|
||
case 'llm/retry': {
|
||
clearStreaming()
|
||
appendNotice(
|
||
`Retrying model request (${event.data.retry}/${event.data.maxRetries}) in ${event.data.delayMs}ms: ${event.data.failure.message}`,
|
||
'warning',
|
||
)
|
||
break
|
||
}
|
||
case 'tool/call':
|
||
chat.addChild(new Spacer(1))
|
||
chat.addChild(parsedTool(event))
|
||
break
|
||
case 'tool/result': {
|
||
let card = toolCards.get(event.data.callId)
|
||
if (card === undefined) {
|
||
card = new ToolCardComponent('tool', { value: {}, valid: true }, undefined, resolved.maxToolOutputLines, palette)
|
||
chat.addChild(new Spacer(1))
|
||
chat.addChild(card)
|
||
allToolCards.add(card)
|
||
}
|
||
card.updateResult(event.data)
|
||
toolCards.delete(event.data.callId)
|
||
break
|
||
}
|
||
case 'todo/write':
|
||
todo.update(event.data.todos)
|
||
break
|
||
case 'session/title':
|
||
sessionTitle = event.data.title
|
||
header.invalidate()
|
||
updateTerminalTitle()
|
||
break
|
||
case 'turn/end':
|
||
clearStreaming()
|
||
if (event.data.reason.kind === 'error') {
|
||
const key = `${event.data.turn}:${event.data.reason.step}`
|
||
const message = 'failure' in event.data.reason
|
||
? event.data.reason.failure.message
|
||
: event.data.reason.message
|
||
if (!liveErrors.delete(key)) appendNotice(message, 'error')
|
||
} else if (event.data.reason.kind === 'aborted') {
|
||
appendNotice('Turn cancelled.', 'warning')
|
||
} else if (event.data.reason.kind === 'max-tokens') {
|
||
appendNotice('The model reached its output-token limit.', 'warning')
|
||
} else if (event.data.reason.kind === 'rejected') {
|
||
appendNotice(`Turn rejected: ${event.data.reason.reason}`, 'warning')
|
||
} else if (event.data.reason.kind === 'interrupted') {
|
||
appendNotice('The previous process ended during this turn.', 'warning')
|
||
}
|
||
break
|
||
default:
|
||
break
|
||
}
|
||
}
|
||
|
||
const rebuildTranscript = (populateHistory: boolean): void => {
|
||
chat.clear()
|
||
toolCards.clear()
|
||
allToolCards.clear()
|
||
streaming = undefined
|
||
const active = activeSurfaceSeqs(agent.session)
|
||
const activeCalls = activeToolCallIds(agent.session, active)
|
||
for (const event of agent.session.events) {
|
||
const isSurface = event.type === 'user/message'
|
||
|| event.type === 'assistant/message'
|
||
|| event.type === 'tool/result'
|
||
|| event.type === 'context/message'
|
||
|| event.type === 'steering/message'
|
||
if (isSurface && !active.has(event.seq)) continue
|
||
if (event.type === 'tool/call' && !activeCalls.has(event.data.callId)) continue
|
||
renderEvent(event, { addHistory: populateHistory, renderChunks: false })
|
||
}
|
||
requestRender()
|
||
}
|
||
|
||
const removeAbortListener = (pending: PendingQuestion): void => {
|
||
pending.request.signal?.removeEventListener('abort', pending.onAbort)
|
||
}
|
||
|
||
const rejectQuestion = (pending: PendingQuestion): void => {
|
||
pending.overlay?.hide()
|
||
pending.overlay = undefined
|
||
removeAbortListener(pending)
|
||
pending.reject(new UserInteractionError(
|
||
'ask_user_question was interrupted before the user answered',
|
||
'ASK_ABORTED',
|
||
))
|
||
}
|
||
|
||
const startNextQuestion = (): void => {
|
||
if (activeQuestion !== undefined || disposed) return
|
||
const pending = questionQueue.shift()
|
||
if (pending === undefined) return
|
||
activeQuestion = pending
|
||
const show = (): void => {
|
||
const question = pending.request.questions[pending.index]
|
||
if (question === undefined) {
|
||
activeQuestion = undefined
|
||
removeAbortListener(pending)
|
||
pending.resolve({ answers: pending.answers })
|
||
startNextQuestion()
|
||
return
|
||
}
|
||
const dialog = new QuestionDialog(
|
||
question,
|
||
pending.index + 1,
|
||
pending.request.questions.length,
|
||
pending.request.questions.length - pending.answers.length,
|
||
resolved.maxQuestionOptions,
|
||
palette,
|
||
(selection) => {
|
||
pending.overlay?.hide()
|
||
pending.overlay = undefined
|
||
pending.answers.push({ id: question.id, ...selection })
|
||
pending.index += 1
|
||
show()
|
||
},
|
||
() => {
|
||
activeQuestion = undefined
|
||
rejectQuestion(pending)
|
||
startNextQuestion()
|
||
},
|
||
)
|
||
pending.overlay = ui.showOverlay(dialog, {
|
||
width: resolved.questionDialogWidth,
|
||
maxHeight: resolved.questionDialogMaxHeight,
|
||
anchor: 'bottom-left',
|
||
margin: { bottom: 1 },
|
||
})
|
||
requestRender()
|
||
}
|
||
show()
|
||
}
|
||
|
||
const disposeUserInteraction = ctx.userInteraction.registerProvider({
|
||
ask(request) {
|
||
return new Promise<AskUserQuestionAnswer>((resolveAnswer, reject) => {
|
||
const pending: PendingQuestion = {
|
||
request,
|
||
index: 0,
|
||
answers: [],
|
||
resolve: resolveAnswer,
|
||
reject,
|
||
overlay: undefined,
|
||
onAbort: () => {
|
||
if (activeQuestion === pending) {
|
||
activeQuestion = undefined
|
||
rejectQuestion(pending)
|
||
startNextQuestion()
|
||
return
|
||
}
|
||
// A non-active pending ask remains in the queue until this listener settles it.
|
||
questionQueue.splice(questionQueue.indexOf(pending), 1)
|
||
rejectQuestion(pending)
|
||
},
|
||
}
|
||
request.signal?.addEventListener('abort', pending.onAbort, { once: true })
|
||
questionQueue.push(pending)
|
||
startNextQuestion()
|
||
})
|
||
},
|
||
})
|
||
|
||
const shutdown = (exitProcess: boolean): Promise<void> => {
|
||
shuttingDown ??= (async () => {
|
||
disposed = true
|
||
contextResolution = undefined
|
||
clearStatus()
|
||
modelOverlay?.hide()
|
||
modelOverlay = undefined
|
||
for (const controller of commandControllers) controller.abort(new Error('TUI disposed'))
|
||
commandControllers.clear()
|
||
if (activeQuestion !== undefined) {
|
||
const pending = activeQuestion
|
||
activeQuestion = undefined
|
||
rejectQuestion(pending)
|
||
}
|
||
for (const pending of questionQueue.splice(0)) rejectQuestion(pending)
|
||
disposeUserInteraction()
|
||
await runtime.terminal.drainInput(100, 20)
|
||
ui.stop()
|
||
if (exitProcess) runtime.exit(0)
|
||
})()
|
||
return shuttingDown
|
||
}
|
||
|
||
const requestExit = (): void => {
|
||
if (agent.status === 'running') {
|
||
agent.cancel({ kind: 'user' })
|
||
appendNotice('Cancelling the active turn before exit…', 'warning')
|
||
void agent.whenIdle().then(() => shutdown(true))
|
||
return
|
||
}
|
||
void shutdown(true)
|
||
}
|
||
|
||
/** Swap the palette and all derived themes for the given terminal color scheme. */
|
||
const applyColorScheme = (scheme: TerminalColorScheme): void => {
|
||
if (scheme === currentScheme) return
|
||
currentScheme = scheme
|
||
Object.assign(palette, createPalette(resolved.color, scheme))
|
||
Object.assign(mdTheme, markdownTheme(palette))
|
||
rebuildTranscript(false)
|
||
setStatus(agent.status)
|
||
requestRender()
|
||
}
|
||
let currentScheme: TerminalColorScheme = 'dark'
|
||
|
||
// Apply any color scheme the terminal reports. Registering before the query
|
||
// below means even a synchronous reply reaches `applyColorScheme`; in practice
|
||
// the startup query's reply is the only report, since dsh-tui leaves
|
||
// unsolicited color-scheme notifications disabled.
|
||
const disposeSchemeListener = ui.onTerminalColorSchemeChange(applyColorScheme)
|
||
|
||
// Ask the terminal for its color scheme via device-status report; the reply,
|
||
// if any, arrives through the listener above. Most terminals do not respond,
|
||
// so we keep the dark-optimised palette. Swallow a query-write failure for the
|
||
// same reason.
|
||
ui.queryTerminalColorScheme({ timeoutMs: 2000 }).catch(() => {})
|
||
|
||
const toggleTools = (): void => {
|
||
toolsExpanded = !toolsExpanded
|
||
for (const card of allToolCards) card.setExpanded(toolsExpanded)
|
||
appendNotice(`Tool cards ${toolsExpanded ? 'expanded' : 'collapsed'}.`)
|
||
}
|
||
|
||
const toggleReasoning = (): void => {
|
||
showReasoning = !showReasoning
|
||
const activeStreaming = streaming
|
||
rebuildTranscript(false)
|
||
if (activeStreaming !== undefined) {
|
||
streaming = activeStreaming
|
||
streaming.setShowReasoning(showReasoning)
|
||
chat.addChild(activeStreaming)
|
||
}
|
||
appendNotice(`Reasoning blocks ${showReasoning ? 'shown' : 'hidden'}.`)
|
||
}
|
||
|
||
const showHelp = (): void => {
|
||
const commandLines = ctx.commands.list(agent).map((command) => {
|
||
const input = command.input === undefined ? '' : ` ${command.input.hint}`
|
||
return `/${command.name}${input} — ${command.description}`
|
||
})
|
||
chat.addChild(new Spacer(1))
|
||
chat.addChild(new Text(palette.bold(palette.accent('Keyboard shortcuts')), 1, 0))
|
||
chat.addChild(new Text([
|
||
'Enter send • Shift/Alt+Enter newline • Up/Down prompt history',
|
||
'Esc cancel active turn • Ctrl+O toggle tool cards • Ctrl+R toggle reasoning',
|
||
'Ctrl+C cancel while running; clear input or exit while idle • Ctrl+D exit',
|
||
'',
|
||
...commandLines,
|
||
].map(line => palette.muted(line)).join('\n'), 1, 0))
|
||
requestRender()
|
||
}
|
||
|
||
const refreshCommandAutocomplete = (): void => {
|
||
editor.setAutocompleteProvider(new CombinedAutocompleteProvider(
|
||
ctx.commands.list(agent).map(command => ({
|
||
name: command.name,
|
||
description: command.description,
|
||
})),
|
||
agent.session.header.cwd ?? process.cwd(),
|
||
))
|
||
}
|
||
const disposeCommandChanges = ctx.on('commands/change', refreshCommandAutocomplete)
|
||
refreshCommandAutocomplete()
|
||
|
||
// The agent scope is minted by agent-loop and intentionally inherits only
|
||
// that core plugin's dependencies. A child command producer declares its own
|
||
// UI-service dependency while retaining the parent agent scope and lifetime.
|
||
const commandFiber = agent.ctx.inject(['commands'], (commandCtx) => {
|
||
commandCtx.commands.register({
|
||
name: 'help',
|
||
description: 'Show keyboard shortcuts and commands',
|
||
handler: () => { showHelp(); return { kind: 'success' } },
|
||
})
|
||
commandCtx.commands.register({
|
||
name: 'model',
|
||
description: 'Show or switch this session\'s model',
|
||
input: { hint: '[[provider/]model]' },
|
||
handler: ({ rawInput }) => {
|
||
queueModelCommand(rawInput)
|
||
return { kind: 'success' }
|
||
},
|
||
})
|
||
commandCtx.commands.register({
|
||
name: 'clear',
|
||
description: 'Clear the transcript view (session history is unchanged)',
|
||
handler: () => { chat.clear(); requestRender(); return { kind: 'success' } },
|
||
})
|
||
commandCtx.commands.register({
|
||
name: 'cancel',
|
||
description: 'Cancel the active turn',
|
||
handler: () => {
|
||
if (agent.status !== 'running') return { kind: 'error', text: 'The agent is already idle.' }
|
||
agent.cancel({ kind: 'user' })
|
||
return { kind: 'success', text: 'Cancellation requested.' }
|
||
},
|
||
})
|
||
commandCtx.commands.register({
|
||
name: 'reasoning',
|
||
description: 'Toggle reasoning blocks',
|
||
handler: () => { toggleReasoning(); return { kind: 'success' } },
|
||
})
|
||
commandCtx.commands.register({
|
||
name: 'tools',
|
||
description: 'Expand or collapse all tool cards',
|
||
handler: () => { toggleTools(); return { kind: 'success' } },
|
||
})
|
||
commandCtx.commands.register({
|
||
name: 'redraw',
|
||
description: 'Invalidate components and redraw the terminal',
|
||
handler: () => { ui.invalidate(); ui.requestRender(true); return { kind: 'success' } },
|
||
})
|
||
commandCtx.commands.register({
|
||
name: 'exit',
|
||
description: 'Exit after the active turn reaches idle',
|
||
handler: () => { requestExit(); return { kind: 'success' } },
|
||
})
|
||
})
|
||
|
||
const runCommand = (text: string): void => {
|
||
const controller = new AbortController()
|
||
commandControllers.add(controller)
|
||
void ctx.commands.execute(agent, text, controller.signal).then(
|
||
(result) => {
|
||
if (disposed) return
|
||
if (result === undefined) {
|
||
appendNotice(`Unknown command: ${text}`, 'warning')
|
||
} else if (result.text !== undefined && result.text !== '') {
|
||
appendNotice(result.text, result.kind === 'error' ? 'error' : 'info')
|
||
}
|
||
},
|
||
(error: unknown) => {
|
||
if (!disposed) {
|
||
appendNotice(`Command failed: ${errorChain(error)}`, 'error')
|
||
}
|
||
},
|
||
).finally(() => { commandControllers.delete(controller) })
|
||
}
|
||
|
||
editor.onSubmit = (value: string) => {
|
||
const text = value.trim()
|
||
if (text === '') return
|
||
editor.addToHistory(text)
|
||
editor.setText('')
|
||
if (value.startsWith('/')) {
|
||
runCommand(value)
|
||
return
|
||
}
|
||
if (agent.status === 'disposed') {
|
||
appendNotice(`Agent "${agent.id}" is disposed.`, 'error')
|
||
} else if (agent.status === 'running') {
|
||
agent.steer([{ type: 'text', text }])
|
||
} else {
|
||
agent.send([{ type: 'text', text }])
|
||
}
|
||
}
|
||
|
||
const removeInputListener = ui.addInputListener((data) => {
|
||
if (activeQuestion !== undefined || modelOverlay !== undefined) return undefined
|
||
if (matchesKey(data, Key.ctrl('o'))) {
|
||
toggleTools()
|
||
return { consume: true }
|
||
}
|
||
if (matchesKey(data, Key.ctrl('r'))) {
|
||
toggleReasoning()
|
||
return { consume: true }
|
||
}
|
||
if (matchesKey(data, Key.ctrl('l'))) {
|
||
ui.invalidate()
|
||
ui.requestRender(true)
|
||
return { consume: true }
|
||
}
|
||
if (matchesKey(data, Key.escape) && agent.status === 'running') {
|
||
agent.cancel({ kind: 'user' })
|
||
return { consume: true }
|
||
}
|
||
if (matchesKey(data, Key.ctrl('c'))) {
|
||
if (agent.status === 'running') {
|
||
agent.cancel({ kind: 'user' })
|
||
} else if (editor.getText() !== '') {
|
||
editor.setText('')
|
||
} else {
|
||
requestExit()
|
||
}
|
||
return { consume: true }
|
||
}
|
||
if (matchesKey(data, Key.ctrl('d'))) {
|
||
if (agent.status === 'running') appendNotice('Cancel the active turn before exiting.', 'warning')
|
||
else requestExit()
|
||
return { consume: true }
|
||
}
|
||
return undefined
|
||
})
|
||
|
||
const disposeSessionEvents = ctx.on('session/event', (session, event) => {
|
||
if (session !== agent.session) return
|
||
recordEventUsage(tokens, event)
|
||
if ('surfaceOp' in event && typeof event.surfaceOp === 'object') {
|
||
rebuildTranscript(false)
|
||
return
|
||
}
|
||
renderEvent(event, { addHistory: false, renderChunks: true })
|
||
requestRender()
|
||
})
|
||
const disposeStatus = ctx.on('agent/status', (subject, status) => {
|
||
if (subject !== agent) return
|
||
setStatus(status)
|
||
})
|
||
const disposeError = ctx.on('agent/error', (subject, turn, step, error) => {
|
||
if (subject !== agent) return
|
||
liveErrors.add(`${turn}:${step}`)
|
||
// Full cause chain: wrapper messages like `fetch failed` carry the
|
||
// actionable transport detail on `cause`.
|
||
appendNotice(errorChain(error), 'error')
|
||
})
|
||
const disposeAgent = ctx.on('agent/disposed', (subject) => {
|
||
if (subject !== agent) return
|
||
clearStatus()
|
||
appendNotice(`Agent "${agent.id}" was disposed.`, 'warning')
|
||
})
|
||
|
||
const detachListeners = (): void => {
|
||
removeInputListener()
|
||
disposeCommandChanges()
|
||
disposeSessionEvents()
|
||
disposeStatus()
|
||
disposeError()
|
||
disposeAgent()
|
||
disposeSchemeListener()
|
||
disposeTargetListeners()
|
||
}
|
||
|
||
rebuildTranscript(true)
|
||
setStatus(agent.status)
|
||
try {
|
||
ui.start()
|
||
} catch (error: unknown) {
|
||
disposed = true
|
||
detachListeners()
|
||
void commandFiber.dispose().catch(
|
||
/* v8 ignore next 2 -- command registration cleanup is non-throwing; this guards a future disposer regression */
|
||
(cleanupError: unknown) => {
|
||
ctx.logger.warn(`ui-tui: command cleanup after startup failure failed: ${errorChain(cleanupError)}`)
|
||
},
|
||
)
|
||
clearStatus()
|
||
disposeUserInteraction()
|
||
ui.stop()
|
||
throw error
|
||
}
|
||
|
||
return {
|
||
async dispose(): Promise<void> {
|
||
detachListeners()
|
||
await shutdown(false)
|
||
await commandFiber.dispose()
|
||
},
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Open the pi-tui channel once its configured agent exists.
|
||
*
|
||
* @param ctx - Context supplying the agent registry, tools, and event stream.
|
||
* @param config - Target agent and presentation configuration.
|
||
* @param runtime - Terminal and process-exit boundary.
|
||
*/
|
||
export function mountTui(ctx: Context, config: Config, runtime: TuiRuntime): void {
|
||
const sessionId = SessionId(config.sessionId ?? 'main')
|
||
const matchesConfiguredIdentity = (agent: Agent): boolean =>
|
||
agent.id === sessionId && ctx.agents.roots().includes(agent)
|
||
let settled = false
|
||
|
||
const stopWaiting = (): void => {
|
||
disposeCreated()
|
||
disposeFailure()
|
||
}
|
||
const start = (agent: Agent): void => {
|
||
if (settled || !matchesConfiguredIdentity(agent)) return
|
||
settled = true
|
||
stopWaiting()
|
||
ctx.effect(() => {
|
||
const controller = createTuiChat(ctx, config, runtime)
|
||
return () => controller.dispose()
|
||
}, 'ui-tui')
|
||
}
|
||
const fail = (failedSessionId: SessionId, error: unknown): void => {
|
||
if (settled || failedSessionId !== sessionId) return
|
||
settled = true
|
||
stopWaiting()
|
||
runtime.terminal.write(displayText(`ui-tui: session "${sessionId}" failed to start: ${errorChain(error)}\n`))
|
||
runtime.exit(1)
|
||
}
|
||
|
||
const disposeCreated = ctx.on('agent/created', start)
|
||
const disposeFailure = ctx.on('agent-loop/config-start-failed', fail)
|
||
const existing = ctx.agents.roots().find(agent => agent.id === sessionId)
|
||
if (existing !== undefined) start(existing)
|
||
}
|
||
|
||
/** Cordis entry point using the process terminal; explicit TUI composition requires a TTY pair. */
|
||
/* v8 ignore start -- production process wiring; fake-terminal tests cover mountTui/createTuiChat,
|
||
and the tui-agent PTY smoke covers the real entry */
|
||
export function apply(ctx: Context, config: Config): void {
|
||
if (!process.stdin.isTTY || !process.stdout.isTTY) {
|
||
throw new Error('ui-tui: both stdin and stdout must be TTYs; use @deepseek-ai/dsh-cli-demo for non-interactive runs')
|
||
}
|
||
mountTui(ctx, config, {
|
||
terminal: new ProcessTerminal(),
|
||
exit: code => process.exit(code),
|
||
})
|
||
}
|
||
/* v8 ignore stop */
|