/*
 * Copyright © 2025 Hexastack. All rights reserved.
 *
 * Licensed under the GNU Affero General Public License v3.0 (AGPLv3) with the following additional terms:
 * 1. The name "Hexabot" is a trademark of Hexastack. You may not use this name in derivative works without express written permission.
 * 2. All derivative works must include clear attribution to the original creator and software, Hexastack and Hexabot, in a prominent location (e.g., in the software's "About" section, documentation, and README file).
 */

import ChatBubbleOutlineOutlinedIcon from "@mui/icons-material/ChatBubbleOutlineOutlined";
import SettingsApplicationsIcon from "@mui/icons-material/SettingsApplications";
import { FormControlLabel, Grid, Switch, Tab, Tabs } from "@mui/material";
import { FC, Fragment, useEffect, useState } from "react";
import { Controller, useForm } from "react-hook-form";

import { ContentContainer, ContentItem } from "@/app-components/dialogs";
import { Input } from "@/app-components/inputs/Input";
import TriggerIcon from "@/app-components/svg/TriggerIcon";
import { TabPanel } from "@/app-components/tabs/TabPanel";
import { useUpdate } from "@/hooks/crud/useUpdate";
import { useToast } from "@/hooks/useToast";
import { useTranslate } from "@/hooks/useTranslate";
import { EntityType } from "@/services/types";
import { IBlock, IBlockAttributes } from "@/types/block.types";
import { ComponentFormProps } from "@/types/common/dialogs.types";
import { OutgoingMessageFormat } from "@/types/message.types";

import BlockFormProvider from "./form/BlockFormProvider";
import { MessageForm } from "./form/MessageForm";
import { OptionsForm } from "./form/OptionsForm";
import { TriggersForm } from "./form/TriggersForm";

type TSelectedTab = "triggers" | "options" | "messages";

export const BlockEditForm: FC<ComponentFormProps<IBlock>> = ({
  data: block,
  Wrapper = Fragment,
  WrapperProps,
  ...rest
}) => {
  const { t } = useTranslate();
  const [selectedTab, setSelectedTab] = useState<TSelectedTab>("triggers");
  const handleChange = (
    _event: React.SyntheticEvent,
    newValue: TSelectedTab,
  ) => {
    setSelectedTab(newValue);
  };
  const { toast } = useToast();
  const { mutateAsync: updateBlock } = useUpdate(EntityType.BLOCK, {
    onError: () => {
      rest.onError?.();
      toast.error(t("message.internal_server_error"));
    },
    onSuccess: () => {
      rest.onSuccess?.();
      toast.success(t("message.success_save"));
    },
  });
  const DEFAULT_VALUES = {
    name: block?.name || "",
    patterns: block?.patterns || [],
    trigger_labels: block?.trigger_labels || [],
    trigger_channels: block?.trigger_channels || [],
    options: block?.options || {
      typing: 0,
      content: {
        display: OutgoingMessageFormat.list,
        top_element_style: "compact",
        limit: 2,
      },
      assignTo: block?.options?.assignTo,
      fallback: block?.options?.fallback || {
        active: true,
        message: [],
        max_attempts: 1,
      },
    },
    assign_labels: block?.assign_labels || [],
    message: block?.message || [""],
    capture_vars: block?.capture_vars || [],
  } as IBlockAttributes;
  const methods = useForm<IBlockAttributes>({
    defaultValues: DEFAULT_VALUES,
  });
  const {
    reset,
    register,
    formState: { errors },
    handleSubmit,
    control,
  } = methods;
  const validationRules = {
    name: {
      required: t("message.name_is_required"),
    },
  };
  const onSubmitForm = async (params: IBlockAttributes) => {
    if (block) {
      updateBlock({ id: block.id, params });
    }
  };

  useEffect(() => {
    if (block) {
      reset(DEFAULT_VALUES);
    } else {
      reset();
    }
  }, [block, reset]);

  return (
    <Wrapper onSubmit={handleSubmit(onSubmitForm)} {...WrapperProps}>
      <BlockFormProvider methods={methods} block={block || undefined}>
        <ContentContainer>
          <ContentItem display="flex" gap={5}>
            <Input
              label={t("placeholder.name")}
              {...register("name", validationRules.name)}
              error={!!errors.name}
              autoFocus
              helperText={errors.name ? errors.name.message : null}
            />

            <Controller
              name="starts_conversation"
              control={control}
              defaultValue={block?.starts_conversation}
              render={({ field }) => (
                <FormControlLabel
                  label={t(`label.starts_conversation`)}
                  {...field}
                  control={<Switch checked={field.value} />}
                />
              )}
            />
          </ContentItem>
          <ContentItem>
            <Tabs
              orientation="horizontal"
              value={selectedTab}
              onChange={handleChange}
            >
              <Tab
                value="triggers"
                label={t("label.triggers")}
                icon={<TriggerIcon />}
                iconPosition="start"
              />
              <Tab
                value="options"
                label={t("label.options")}
                icon={<SettingsApplicationsIcon />}
                iconPosition="start"
              />
              <Tab
                value="messages"
                label={t("label.message")}
                icon={<ChatBubbleOutlineOutlinedIcon />}
                iconPosition="start"
              />
            </Tabs>
            <Grid sx={{ padding: 2 }}>
              <TabPanel value={selectedTab} index="triggers">
                <TriggersForm />
              </TabPanel>
              <TabPanel value={selectedTab} index="options">
                <OptionsForm />
              </TabPanel>
              <TabPanel value={selectedTab} index="messages">
                <MessageForm />
              </TabPanel>
            </Grid>
          </ContentItem>
        </ContentContainer>
      </BlockFormProvider>
    </Wrapper>
  );
};