import type { BrowserWindow } from 'electron'
import { ipcMain } from 'electron';
import { WINDOW_NAMES, MAIN_WIN_SIZE, IPC_EVENTS, MENU_IDS, CONVERSATION_ITEM_MENU_IDS, CONVERSATION_LIST_MENU_IDS, MESSAGE_ITEM_MENU_IDS, CONFIG_KEYS } from '@common/constants'
import { createProvider } from '../providers'
import { windowManager } from '@main/service/window-service'
import { menuManager } from '@main/service/menu-service'
import { logManager } from '@main/service/logger'
import { configManager } from '@main/service/config-service'
import { trayManager } from '@main/service/tray-service'
import { TabManager } from '@service/tab-manager'

const handleTray = (minimizeToTray: boolean) => {
  if (minimizeToTray) {
    trayManager.create();
    return;
  }

  trayManager.destroy();
}

const registerMenus = (window: BrowserWindow) => {

  const conversationItemMenuItemClick = (id: string) => {
    logManager.logUserOperation(`${IPC_EVENTS.SHOW_CONTEXT_MENU}:${MENU_IDS.CONVERSATION_ITEM}-${id}`)
    window.webContents.send(`${IPC_EVENTS.SHOW_CONTEXT_MENU}:${MENU_IDS.CONVERSATION_ITEM}`, id);
  }

  menuManager.register(MENU_IDS.CONVERSATION_ITEM, [
    {
      id: CONVERSATION_ITEM_MENU_IDS.PIN,
      label: 'menu.conversation.pinConversation',
      click: () => conversationItemMenuItemClick(CONVERSATION_ITEM_MENU_IDS.PIN)
    },
    {
      id: CONVERSATION_ITEM_MENU_IDS.RENAME,
      label: 'menu.conversation.renameConversation',
      click: () => conversationItemMenuItemClick(CONVERSATION_ITEM_MENU_IDS.RENAME)
    },
    {
      id: CONVERSATION_ITEM_MENU_IDS.DEL,
      label: 'menu.conversation.delConversation',
      click: () => conversationItemMenuItemClick(CONVERSATION_ITEM_MENU_IDS.DEL)
    },
  ])

  const conversationListMenuItemClick = (id: string) => {
    logManager.logUserOperation(`${IPC_EVENTS.SHOW_CONTEXT_MENU}:${MENU_IDS.CONVERSATION_LIST}-${id}`)
    window.webContents.send(`${IPC_EVENTS.SHOW_CONTEXT_MENU}:${MENU_IDS.CONVERSATION_LIST}`, id);
  }

  menuManager.register(MENU_IDS.CONVERSATION_LIST, [
    {
      id: CONVERSATION_LIST_MENU_IDS.NEW_CONVERSATION,
      label: 'menu.conversation.newConversation',
      click: () => conversationListMenuItemClick(CONVERSATION_LIST_MENU_IDS.NEW_CONVERSATION)
    },
    { type: 'separator' },
    {
      id: CONVERSATION_LIST_MENU_IDS.SORT_BY, label: 'menu.conversation.sortBy', submenu: [
        { id: CONVERSATION_LIST_MENU_IDS.SORT_BY_CREATE_TIME, label: 'menu.conversation.sortByCreateTime', type: 'radio', checked: false, click: () => conversationListMenuItemClick(CONVERSATION_LIST_MENU_IDS.SORT_BY_CREATE_TIME) },
        { id: CONVERSATION_LIST_MENU_IDS.SORT_BY_UPDATE_TIME, label: 'menu.conversation.sortByUpdateTime', type: 'radio', checked: false, click: () => conversationListMenuItemClick(CONVERSATION_LIST_MENU_IDS.SORT_BY_UPDATE_TIME) },
        { id: CONVERSATION_LIST_MENU_IDS.SORT_BY_NAME, label: 'menu.conversation.sortByName', type: 'radio', checked: false, click: () => conversationListMenuItemClick(CONVERSATION_LIST_MENU_IDS.SORT_BY_NAME) },
        { id: CONVERSATION_LIST_MENU_IDS.SORT_BY_MODEL, label: 'menu.conversation.sortByModel', type: 'radio', checked: false, click: () => conversationListMenuItemClick(CONVERSATION_LIST_MENU_IDS.SORT_BY_MODEL) },
        { type: 'separator' },
        { id: CONVERSATION_LIST_MENU_IDS.SORT_ASCENDING, label: 'menu.conversation.sortAscending', type: 'radio', checked: false, click: () => conversationListMenuItemClick(CONVERSATION_LIST_MENU_IDS.SORT_ASCENDING) },
        { id: CONVERSATION_LIST_MENU_IDS.SORT_DESCENDING, label: 'menu.conversation.sortDescending', type: 'radio', checked: false, click: () => conversationListMenuItemClick(CONVERSATION_LIST_MENU_IDS.SORT_DESCENDING) },
      ]
    },
    {
      id: CONVERSATION_LIST_MENU_IDS.BATCH_OPERATIONS,
      label: 'menu.conversation.batchOperations',
      click: () => conversationListMenuItemClick(CONVERSATION_LIST_MENU_IDS.BATCH_OPERATIONS)
    }
  ])

  const messageItemMenuItemClick = (id: string) => {
    logManager.logUserOperation(`${IPC_EVENTS.SHOW_CONTEXT_MENU}:${MENU_IDS.MESSAGE_ITEM}-${id}`)
    window.webContents.send(`${IPC_EVENTS.SHOW_CONTEXT_MENU}:${MENU_IDS.MESSAGE_ITEM}`, id);
  }

  menuManager.register(MENU_IDS.MESSAGE_ITEM, [
    {
      id: MESSAGE_ITEM_MENU_IDS.COPY,
      label: 'menu.message.copyMessage',
      click: () => messageItemMenuItemClick(MESSAGE_ITEM_MENU_IDS.COPY)
    },
    {
      id: MESSAGE_ITEM_MENU_IDS.SELECT,
      label: 'menu.message.selectMessage',
      click: () => messageItemMenuItemClick(MESSAGE_ITEM_MENU_IDS.SELECT)
    },
    { type: 'separator' },
    {
      id: MESSAGE_ITEM_MENU_IDS.DELETE,
      label: 'menu.message.deleteMessage',
      click: () => messageItemMenuItemClick(MESSAGE_ITEM_MENU_IDS.DELETE)
    },
  ])
}

export function setupMainWindow() {
  windowManager.onWindowCreate(WINDOW_NAMES.MAIN, (mainWindow) => {
    let minimizeToTray = configManager.get(CONFIG_KEYS.MINIMIZE_TO_TRAY);

    configManager.onConfigChange((config) => {
      if (minimizeToTray === config[CONFIG_KEYS.MINIMIZE_TO_TRAY]) return;
      minimizeToTray = config[CONFIG_KEYS.MINIMIZE_TO_TRAY];
      handleTray(minimizeToTray);
    });

    handleTray(minimizeToTray);
    registerMenus(mainWindow);

    const tabManager = new TabManager(mainWindow)
    tabManager.enable()

    mainWindow.on('closed', () => {
      tabManager.destroy()
    })
  });

  windowManager.create(WINDOW_NAMES.MAIN, MAIN_WIN_SIZE);

  ipcMain.on(IPC_EVENTS.START_A_DIALOGUE, async (_event, props: CreateDialogueProps) => {
    const { providerName, messages, messageId, selectedModel } = props;
    const mainWindow = windowManager.get(WINDOW_NAMES.MAIN);

    if (!mainWindow) {
      throw new Error('mainWindow not found');
    }

    try {

      const provider = createProvider(providerName);
      const chunks = await provider?.chat(messages, selectedModel);

      if (!chunks) {
        throw new Error('chunks or stream not found');
      }

      for await (const chunk of chunks) {
        const chunkContent = {
          messageId,
          data: chunk
        }
        mainWindow.webContents.send(IPC_EVENTS.START_A_DIALOGUE + 'back' + messageId, chunkContent);
      }

    } catch (error) {
      const errorContent = {
        messageId,
        data: {
          isEnd: true,
          isError: true,
          result: error instanceof Error ? error.message : String(error),
        }
      }

      mainWindow.webContents.send(IPC_EVENTS.START_A_DIALOGUE + 'back' + messageId, errorContent);
    }
  })
}