import electron from 'electron';
import type { BrowserWindow } from 'electron';
const { ipcMain, dialog } = electron;
import type { NoteRepository } from '../repository/NoteRepository.js';
import type { ContinuityService } from '../services/ContinuityService.js';
import type { CaptureService } from '../services/CaptureService.js';
import type { HealthChecker } from '../services/HealthChecker.js';
import type { IntentService } from '../services/IntentService.js';
import type { Note } from '@shared/types';
import type { HealthResult } from '../ai/InferenceProvider.js';
import { LocalOllamaProvider } from '../ai/LocalOllamaProvider.js';
import type { SettingsService } from '../services/SettingsService.js';
import type { ProviderHolder } from '../ai/ProviderHolder.js';

export interface InboxIpcDeps {
  repo: NoteRepository;
  continuity: ContinuityService;
  capture: CaptureService;
  health: HealthChecker;
  intent: IntentService;
  getInboxWindow: () => BrowserWindow | null;
  settings: SettingsService;
  providerHolder: ProviderHolder;
}

export function registerInboxApi(deps: InboxIpcDeps): void {
  ipcMain.handle('inbox:list', (_e, opts: { limit: number; cursor?: string }) =>
    deps.repo.list(opts)
  );

  ipcMain.handle(
    'inbox:updateAi',
    (_e, arg: { noteId: string; fields: { title?: string; summary?: string; tags?: string[] } }) => {
      deps.repo.updateUserAiFields(arg.noteId, arg.fields);
    }
  );

  ipcMain.handle('inbox:setDueDate', (_e, arg: { noteId: string; date: string | null }) => {
    deps.repo.setDueDate(arg.noteId, arg.date);
  });

  ipcMain.handle('inbox:delete', async (_e, noteId: string) => {
    await deps.capture.deleteNote(noteId);
  });

  ipcMain.handle(
    'inbox:setIntent',
    (_e, arg: { noteId: string; text: string }) => {
      deps.intent.setIntent(arg.noteId, arg.text);
    }
  );

  ipcMain.handle('inbox:dismissIntent', (_e, noteId: string) => {
    deps.intent.dismissIntent(noteId);
  });

  ipcMain.handle('inbox:continuity', () => deps.continuity.get());
  ipcMain.handle('inbox:pendingCount', () => deps.repo.getPendingCount());
  ipcMain.handle('inbox:ollamaStatus', () => deps.health.lastStatus());
  ipcMain.handle('inbox:todayCount', () => deps.repo.countToday());

  ipcMain.handle('inbox:restore', async (_e, noteId: string) => {
    await deps.capture.restoreNote(noteId);
  });

  ipcMain.handle('inbox:permanentDelete', async (_e, noteId: string) => {
    const win = deps.getInboxWindow();
    const opts: Electron.MessageBoxOptions = {
      type: 'question',
      buttons: ['영구 삭제', '취소'],
      defaultId: 1,
      cancelId: 1,
      title: 'Inkling',
      message: '이 노트를 영구 삭제합니다',
      detail: '이 작업은 되돌릴 수 없습니다. 첨부된 이미지도 함께 삭제됩니다.'
    };
    const r = win
      ? await dialog.showMessageBox(win, opts)
      : await dialog.showMessageBox(opts);
    if (r.response !== 0) return { confirmed: false };
    await deps.capture.permanentDeleteNote(noteId);
    return { confirmed: true };
  });

  ipcMain.handle('inbox:emptyTrash', async () => {
    const fullCount = deps.repo.countTrashed();
    if (fullCount === 0) return { confirmed: true, count: 0 };
    const win = deps.getInboxWindow();
    const opts: Electron.MessageBoxOptions = {
      type: 'question',
      buttons: ['휴지통 비우기', '취소'],
      defaultId: 1,
      cancelId: 1,
      title: 'Inkling',
      message: `휴지통의 노트 ${fullCount}개를 영구 삭제합니다`,
      detail: '이 작업은 되돌릴 수 없습니다. 첨부된 이미지도 함께 삭제됩니다.'
    };
    const r = win
      ? await dialog.showMessageBox(win, opts)
      : await dialog.showMessageBox(opts);
    if (r.response !== 0) return { confirmed: false, count: 0 };
    const result = await deps.capture.emptyTrash();
    return { confirmed: true, count: result.count };
  });

  ipcMain.handle('inbox:listTrash', (_e, opts: { limit: number }) =>
    deps.repo.listTrashed(opts)
  );

  ipcMain.handle('inbox:trashCount', () => deps.repo.countTrashed());

  ipcMain.handle('inbox:listExpired', async () => deps.capture.listExpired());

  ipcMain.handle(
    'inbox:trashExpiredBatch',
    async (_e, payload: { ids: string[] }) => {
      if (payload.ids.length === 0) return { trashedCount: 0, confirmed: false };
      const win = deps.getInboxWindow();
      const opts: Electron.MessageBoxOptions = {
        type: 'question',
        buttons: ['옮기기', '취소'],
        defaultId: 1,
        cancelId: 1,
        title: 'Inkling',
        message: `선택한 노트 ${payload.ids.length}개를 휴지통으로 옮깁니다`,
        detail: '복구는 휴지통 탭에서 가능합니다.'
      };
      const r = win
        ? await dialog.showMessageBox(win, opts)
        : await dialog.showMessageBox(opts);
      if (r.response !== 0) return { trashedCount: 0, confirmed: false };
      const result = await deps.capture.trashExpiredBatch(payload.ids);
      return { trashedCount: result.trashedCount, confirmed: true };
    }
  );

  ipcMain.handle('inbox:ollamaRecheck', async () => {
    await deps.health.runOnce({ manual: true });
    return deps.health.lastStatus();
  });

  ipcMain.handle('inbox:retryAllFailed', async () => deps.capture.retryAllFailed());
  ipcMain.handle('inbox:failedCount', () => deps.repo.countFailed());

  ipcMain.handle('inbox:listRecallCandidate', () => deps.capture.listRecallCandidate());
  ipcMain.handle('inbox:markRecallOpened', (_e, id: string) => deps.capture.markRecallOpened(id));
  ipcMain.handle('inbox:dismissRecall', (_e, id: string) => deps.capture.dismissRecall(id));
  ipcMain.handle('inbox:emitRecallShown', (_e, id: string) => deps.capture.emitRecallShown(id));
  ipcMain.handle('inbox:emitRecallSnoozed', (_e, id: string) => deps.capture.emitRecallSnoozed(id));

  ipcMain.handle('inbox:loadOllamaSettings', async () => {
    const s = await deps.settings.load();
    return s.ollama ?? null;
  });

  ipcMain.handle('inbox:saveOllamaSettings', async (_e, value: { endpoint: string; model: string }) => {
    // 검증: 새 인스턴스로 healthCheck
    const trial = new LocalOllamaProvider({ endpoint: value.endpoint, model: value.model });
    const r = await trial.healthCheck();
    if (!r.ok) return { ok: false, reason: r.reason ?? 'unknown' };
    try {
      await deps.settings.setOllama(value);
    } catch (e) {
      return { ok: false, reason: `persist failed: ${(e as Error).message}` };
    }
    deps.providerHolder.get().abort?.();
    deps.providerHolder.replace(trial);
    // 즉시 health 재확인 → onUpdate callback 통해 OllamaBanner 자동 갱신
    await deps.health.runOnce();
    return { ok: true };
  });
}

export function pushNoteUpdated(getWin: () => BrowserWindow | null, note: Note): void {
  const w = getWin();
  if (!w || w.isDestroyed()) return;
  w.webContents.send('note:updated', note);
}

export function pushOllamaStatus(getWin: () => BrowserWindow | null, status: HealthResult): void {
  const w = getWin();
  if (!w || w.isDestroyed()) return;
  w.webContents.send('ollama:status', status);
}