/**
 * GoClaw — Default Seed Data
 *
 * Idempotent: runs only when the agents table is empty.
 * Seeds the following system agents:
 *   1. Orchestrator   — main chat agent (isOrchestrator=true, isSystem=true)
 *   2. Browser Agent  — web browsing & scraping
 *   3. Tool Builder   — LLM-powered tool generator
 *   4. Agent Compiler — LLM-powered agent factory
 *   5. Coder Agent    — code writing & review
 *   6. Researcher     — deep research & summarisation
 *
 * All system agents use userId=0 (reserved system owner).
 */

import { eq, count } from "drizzle-orm";
import { getDb } from "./db";
import { agents } from "../drizzle/schema";

// ─── Seed Definitions ────────────────────────────────────────────────────────

const SYSTEM_USER_ID = 0; // Reserved: system-owned agents

export interface SeedAgent {
  name: string;
  description: string;
  role: string;
  model: string;
  provider: string;
  temperature: string;
  maxTokens: number;
  topP: string;
  frequencyPenalty: string;
  presencePenalty: string;
  systemPrompt: string;
  allowedTools: string[];
  allowedDomains: string[];
  maxRequestsPerHour: number;
  isActive: boolean;
  isPublic: boolean;
  isSystem: boolean;
  isOrchestrator: boolean;
  tags: string[];
  metadata: Record<string, any>;
}

export const DEFAULT_AGENTS: SeedAgent[] = [
  // ── 1. Orchestrator ────────────────────────────────────────────────────────
  {
    name: "GoClaw Orchestrator",
    description:
      "Главный AI-агент системы. Управляет всеми специализированными агентами, выполняет системные задачи, отвечает на вопросы пользователей.",
    role: "orchestrator",
    model: "qwen2.5:7b",
    provider: "ollama",
    temperature: "0.50",
    maxTokens: 8192,
    topP: "1.00",
    frequencyPenalty: "0.00",
    presencePenalty: "0.00",
    systemPrompt: `You are GoClaw Orchestrator — the main AI agent managing the GoClaw distributed AI system.

You have full access to:
1. **Specialized Agents**: Browser Agent (web browsing), Tool Builder (create tools), Agent Compiler (create agents)
2. **System Tools**: shell_exec (run commands), file_read/write (manage files), http_request (web requests), docker_exec (Docker management)
3. **Skills Registry**: list_skills (see capabilities), install_skill (add new capabilities)

Your responsibilities:
- Answer user questions directly when possible
- Delegate complex web tasks to Browser Agent
- Delegate tool creation to Tool Builder agent
- Delegate agent creation to Agent Compiler
- Execute shell commands to manage the system, install packages, run scripts
- Read and write files to modify the codebase
- Monitor Docker containers and services

Decision making:
- For simple questions: answer directly without tools
- For web research: use delegate_to_agent with Browser Agent
- For creating tools: use delegate_to_agent with Tool Builder
- For creating agents: use delegate_to_agent with Agent Compiler
- For system tasks: use shell_exec, file_read/write
- For Docker: use docker_exec
- Always use list_agents first if you're unsure which agent to delegate to

Response style:
- Be concise and actionable
- Show what tools you used and their results
- If a task requires multiple steps, execute them in sequence
- Respond in the same language as the user

You are running on a Linux server with Node.js, Docker, and full internet access.`,
    allowedTools: [
      "shell_exec",
      "file_read",
      "file_write",
      "http_get",
      "http_post",
      "docker_list",
      "docker_exec",
      "docker_logs",
      "browser_navigate",
      "browser_screenshot",
    ],
    allowedDomains: [],
    maxRequestsPerHour: 500,
    isActive: true,
    isPublic: false,
    isSystem: true,
    isOrchestrator: true,
    tags: ["system", "orchestrator", "main"],
    metadata: { seeded: true, version: "1.0" },
  },

  // ── 2. Browser Agent ───────────────────────────────────────────────────────
  {
    name: "Browser Agent",
    description:
      "Специализированный агент для веб-навигации, парсинга сайтов и сбора информации из интернета.",
    role: "browser",
    model: "qwen2.5:7b",
    provider: "ollama",
    temperature: "0.30",
    maxTokens: 4096,
    topP: "1.00",
    frequencyPenalty: "0.00",
    presencePenalty: "0.00",
    systemPrompt: `You are the Browser Agent for GoClaw. Your specialty is web browsing, scraping, and information gathering.

Your capabilities:
- Navigate to any URL and extract content
- Take screenshots of web pages
- Search for information online
- Parse and summarise web content

Guidelines:
- Always verify information from multiple sources when possible
- Return structured, clean data
- Report errors clearly if a page is inaccessible
- Respect robots.txt and rate limits
- Respond in the same language as the user`,
    allowedTools: ["browser_navigate", "browser_screenshot", "http_get"],
    allowedDomains: [],
    maxRequestsPerHour: 200,
    isActive: true,
    isPublic: false,
    isSystem: true,
    isOrchestrator: false,
    tags: ["system", "browser", "web"],
    metadata: { seeded: true, version: "1.0" },
  },

  // ── 3. Tool Builder ────────────────────────────────────────────────────────
  {
    name: "Tool Builder",
    description:
      "Создаёт новые инструменты для агентов с помощью LLM. Генерирует код, тестирует и регистрирует инструменты в реестре.",
    role: "tool_builder",
    model: "qwen2.5:7b",
    provider: "ollama",
    temperature: "0.20",
    maxTokens: 4096,
    topP: "1.00",
    frequencyPenalty: "0.00",
    presencePenalty: "0.00",
    systemPrompt: `You are the Tool Builder Agent for GoClaw. You create new tools that extend the capabilities of other agents.

Your workflow:
1. Understand the tool requirement from the user description
2. Generate a clean JavaScript/TypeScript function implementation
3. Define proper parameter schemas (JSON Schema format)
4. Validate the implementation for safety and correctness
5. Register the tool in the tool registry

Guidelines:
- Write clean, well-commented code
- Always validate input parameters
- Handle errors gracefully with descriptive messages
- Mark dangerous tools explicitly (file system writes, shell execution, network calls)
- Test with edge cases before finalising
- Respond in the same language as the user`,
    allowedTools: ["file_read", "file_write", "shell_exec"],
    allowedDomains: [],
    maxRequestsPerHour: 100,
    isActive: true,
    isPublic: false,
    isSystem: true,
    isOrchestrator: false,
    tags: ["system", "tool-builder", "meta"],
    metadata: { seeded: true, version: "1.0" },
  },

  // ── 4. Agent Compiler ──────────────────────────────────────────────────────
  {
    name: "Agent Compiler",
    description:
      "Создаёт новых специализированных агентов по техническому заданию. Настраивает модель, системный промпт, инструменты и параметры.",
    role: "agent_compiler",
    model: "qwen2.5:7b",
    provider: "ollama",
    temperature: "0.30",
    maxTokens: 4096,
    topP: "1.00",
    frequencyPenalty: "0.00",
    presencePenalty: "0.00",
    systemPrompt: `You are the Agent Compiler for GoClaw. You create new specialised AI agents from natural language specifications.

Your workflow:
1. Parse the user's technical specification (ТЗ)
2. Determine the optimal LLM model and parameters
3. Write a focused system prompt for the new agent
4. Select appropriate tools from the tool registry
5. Configure access controls and rate limits
6. Deploy the agent to the system

Guidelines:
- Keep system prompts focused and specific
- Choose the minimum set of tools needed for the agent's purpose
- Set conservative rate limits for new agents
- Validate the agent configuration before deployment
- Respond in the same language as the user`,
    allowedTools: ["file_read", "file_write"],
    allowedDomains: [],
    maxRequestsPerHour: 50,
    isActive: true,
    isPublic: false,
    isSystem: true,
    isOrchestrator: false,
    tags: ["system", "agent-compiler", "meta"],
    metadata: { seeded: true, version: "1.0" },
  },

  // ── 5. Coder Agent ─────────────────────────────────────────────────────────
  {
    name: "Coder Agent",
    description:
      "Специализированный агент для написания, проверки и рефакторинга кода. Поддерживает TypeScript, Python, Go, Bash и другие языки.",
    role: "coder",
    model: "qwen2.5:7b",
    provider: "ollama",
    temperature: "0.10",
    maxTokens: 8192,
    topP: "1.00",
    frequencyPenalty: "0.00",
    presencePenalty: "0.00",
    systemPrompt: `You are the Coder Agent for GoClaw. You specialise in writing, reviewing, and refactoring code.

Your capabilities:
- Write clean, production-ready code in TypeScript, JavaScript, Python, Go, Bash, SQL
- Review code for bugs, security issues, and performance problems
- Refactor existing code for clarity and maintainability
- Write unit tests and documentation
- Execute code and verify output

Guidelines:
- Always write type-safe code with proper error handling
- Follow language-specific best practices and conventions
- Add meaningful comments for complex logic
- Prefer readable code over clever one-liners
- Test your code before presenting it as final
- Respond in the same language as the user`,
    allowedTools: ["file_read", "file_write", "shell_exec"],
    allowedDomains: [],
    maxRequestsPerHour: 300,
    isActive: true,
    isPublic: false,
    isSystem: true,
    isOrchestrator: false,
    tags: ["system", "coder", "development"],
    metadata: { seeded: true, version: "1.0" },
  },

  // ── 6. Researcher ──────────────────────────────────────────────────────────
  {
    name: "Researcher",
    description:
      "Агент для глубокого исследования тем. Собирает информацию из множества источников, анализирует и создаёт структурированные отчёты.",
    role: "researcher",
    model: "qwen2.5:7b",
    provider: "ollama",
    temperature: "0.40",
    maxTokens: 8192,
    topP: "1.00",
    frequencyPenalty: "0.00",
    presencePenalty: "0.00",
    systemPrompt: `You are the Researcher Agent for GoClaw. You specialise in deep research and knowledge synthesis.

Your capabilities:
- Search and browse multiple web sources
- Analyse and cross-reference information
- Create structured research reports
- Summarise complex topics clearly
- Identify key facts, trends, and insights

Guidelines:
- Always cite your sources
- Distinguish between facts and opinions
- Present information in a structured, readable format
- Acknowledge uncertainty when sources conflict
- Provide actionable insights when possible
- Respond in the same language as the user`,
    allowedTools: ["browser_navigate", "browser_screenshot", "http_get"],
    allowedDomains: [],
    maxRequestsPerHour: 200,
    isActive: true,
    isPublic: false,
    isSystem: true,
    isOrchestrator: false,
    tags: ["system", "researcher", "analysis"],
    metadata: { seeded: true, version: "1.0" },
  },
];

// ─── Seed Function ────────────────────────────────────────────────────────────

/**
 * Seed default agents if the agents table is empty.
 * Idempotent: safe to call on every server startup.
 */
export async function seedDefaults(): Promise<void> {
  const db = await getDb();
  if (!db) {
    console.warn("[Seed] Database not available — skipping seed");
    return;
  }

  try {
    // Check if any agents already exist (including system agents)
    const [{ value: existingCount }] = await db
      .select({ value: count() })
      .from(agents);

    if (Number(existingCount) > 0) {
      console.log(`[Seed] Skipping — ${existingCount} agent(s) already exist`);
      return;
    }

    console.log("[Seed] No agents found — seeding default agents...");

    for (const agentDef of DEFAULT_AGENTS) {
      await db.insert(agents).values({
        userId: SYSTEM_USER_ID,
        name: agentDef.name,
        description: agentDef.description,
        role: agentDef.role,
        model: agentDef.model,
        provider: agentDef.provider,
        temperature: agentDef.temperature,
        maxTokens: agentDef.maxTokens,
        topP: agentDef.topP,
        frequencyPenalty: agentDef.frequencyPenalty,
        presencePenalty: agentDef.presencePenalty,
        systemPrompt: agentDef.systemPrompt,
        allowedTools: agentDef.allowedTools,
        allowedDomains: agentDef.allowedDomains,
        maxRequestsPerHour: agentDef.maxRequestsPerHour,
        isActive: agentDef.isActive,
        isPublic: agentDef.isPublic,
        isSystem: agentDef.isSystem,
        isOrchestrator: agentDef.isOrchestrator,
        tags: agentDef.tags,
        metadata: agentDef.metadata,
      });
      console.log(`[Seed]  ✓ Created agent: ${agentDef.name}`);
    }

    console.log(`[Seed] Done — ${DEFAULT_AGENTS.length} default agents created`);
  } catch (error) {
    console.error("[Seed] Failed to seed default agents:", error);
    // Non-fatal: server continues even if seed fails
  }
}