const test = require('node:test');
const assert = require('node:assert/strict');

const registerPlaylistRoutes = require('../src/web/routes/admin/playlists');

function createAppAndHandlers() {
  const handlers = {};
  const app = {
    post(path, ...routeHandlers) {
      handlers[path] = routeHandlers;
    },
    get() {}
  };

  return { app, handlers };
}

function createResponse() {
  return {
    redirectedTo: '',
    statusCode: 200,
    redirect(url) {
      this.redirectedTo = url;
    },
    status(code) {
      this.statusCode = code;
      return this;
    },
    send() {
      return this;
    }
  };
}

test('playlist create and update redirect to the canonical edit path', async () => {
  const calls = [];
  const connection = {
    async beginTransaction() {},
    async commit() {},
    async rollback() {},
    release() {},
    async query(sql) {
      if (sql.startsWith('INSERT INTO c_playlists')) {
        return [{ insertId: 4 }];
      }
      if (sql.startsWith('UPDATE c_playlists SET')) {
        calls.push('update-playlist');
        return [{ affectedRows: 1 }];
      }
      if (sql.startsWith('DELETE FROM c_playlist_slides')) {
        calls.push('delete-slides');
        return [{ affectedRows: 1 }];
      }
      return [[]];
    }
  };

  const { app, handlers } = createAppAndHandlers();
  registerPlaylistRoutes(app, {
    pool: {
      async getConnection() {
        return connection;
      }
    },
    common: {
      async fetchDuplicateName() { return null; },
      async fetchCanvasSizeById() { return { id: 7 }; },
      async fetchPlaylistById() { return { id: 4, canvas_id: 7 }; }
    },
    pages: {},
    fetchOrderedPlaylistSlides: async () => [],
    fetchScreensByPlaylistId: async () => [],
    fetchPlaylistCanvasId: async () => null,
    readArrayField: () => [],
    getAuditUserId: () => 12,
    redirectAfterSave(req, res, url) {
      calls.push({ kind: 'redirectAfterSave', url, path: req.path });
      res.redirect(url);
    },
    notifyPlayerScreens: async () => {},
    broadcastDashboardState: async () => {},
    getPlaylistDeleteBlockMessage: async () => '',
    requirePermission() {
      return function (_req, _res, next) {
        next();
      };
    }
  });

  const createHandlers = handlers['/playlists'];
  const updateHandlers = handlers['/playlists/:id'];
  assert.equal(Array.isArray(createHandlers), true);
  assert.equal(Array.isArray(updateHandlers), true);

  const createRes = createResponse();
  await createHandlers[1]({
    path: '/playlists',
    body: {
      name: 'Lunch Loop',
      canvas_size_id: '7',
      slide_id: []
    }
  }, createRes, () => {});

  const updateRes = createResponse();
  await updateHandlers[1]({
    path: '/playlists/4',
    params: { id: '4' },
    body: {
      name: 'Lunch Loop',
      slide_id: []
    }
  }, updateRes, () => {});

  assert.equal(createRes.redirectedTo, '/playlists/4/edit');
  assert.equal(updateRes.redirectedTo, '/playlists/4/edit');
  assert.deepEqual(calls, [
    'delete-slides',
    { kind: 'redirectAfterSave', url: '/playlists/4/edit', path: '/playlists' },
    'update-playlist',
    'delete-slides',
    { kind: 'redirectAfterSave', url: '/playlists/4/edit', path: '/playlists/4' }
  ]);
});