module.exports = function registerAdminManageRoutes(app, deps) {
  const pool = deps.pool;
  const common = deps.common;
  const pages = deps.pages;
  const fetchOrderedPlaylistSlides = deps.fetchOrderedPlaylistSlides;
  const fetchScreensByPlaylistId = deps.fetchScreensByPlaylistId;
  const fetchPlaylistCanvasSignature = deps.fetchPlaylistCanvasSignature;
  const getCanvasSignature = deps.getCanvasSignature;
  const normalizeScheduleMode = deps.normalizeScheduleMode;
  const parseDateTimeLocal = deps.parseDateTimeLocal;
  const parseTimeLocal = deps.parseTimeLocal;
  const readArrayField = deps.readArrayField;
  const getAuditUserId = deps.getAuditUserId;
  const redirectAfterSave = deps.redirectAfterSave;
  const notifyPlayerScreens = deps.notifyPlayerScreens;
  const broadcastDashboardState = deps.broadcastDashboardState;
  const getScreenDeleteBlockMessage = deps.getScreenDeleteBlockMessage;
  const getScreenConnections = deps.getScreenConnections;
  const getPlaylistDeleteBlockMessage = deps.getPlaylistDeleteBlockMessage;
  const forwardPlayerCommand = deps.forwardPlayerCommand;
  const PLAYER_PUBLIC_BASE_URL = deps.playerPublicBaseUrl;
  const requirePermission = deps.requirePermission;

  async function fetchAllScreenSlugs() {
    const [rows] = await pool.query('SELECT slug FROM screens ORDER BY slug ASC');
    return (rows || [])
      .map(function (row) {
        return String(row && row.slug ? row.slug : '').trim();
      })
      .filter(Boolean);
  }

  app.post('/commands', requirePermission('dashboard.allow'), async function (req, res, next) {
    try {
      const command = String((req.body && req.body.command) || req.query.command || '').trim().toLowerCase();
      const blackoutValue = req.body && Object.prototype.hasOwnProperty.call(req.body, 'blackout')
        ? req.body.blackout
        : req.query.blackout;

      if (!command) {
        return res.status(400).json({ error: 'Command is required' });
      }

      if (command !== 'reload' && command !== 'blackout') {
        return res.status(400).json({ error: 'Unsupported command' });
      }

      const slugs = await fetchAllScreenSlugs();
      if (!slugs.length) {
        await broadcastDashboardState();
        return res.json({ ok: true, command: command, sent: 0 });
      }

      const payload = command === 'blackout'
        ? {
            command: 'blackout',
            blackout: blackoutValue === true || blackoutValue === 'true' || blackoutValue === '1' ? true : false
          }
        : 'reload';

      const sentCount = await notifyPlayerScreens(slugs, payload);
      await broadcastDashboardState();

      return res.json({
        ok: true,
        command: command,
        sent: sentCount,
        blackout: command === 'blackout' ? Boolean(payload.blackout) : undefined
      });
    } catch (error) {
      next(error);
    }
  });

  app.post('/playlists', requirePermission('playlists.create'), async function (req, res, next) {
    try {
      const name = String(req.body.name || '').trim();
      const fadeBetweenSlides = req.body.fade_between_slides ? 1 : 0;
      if (!name) {
        return res.status(400).send('Playlist name is required.');
      }
      if (await common.fetchDuplicateName(pool, 'playlists', name)) {
        return res.status(400).send('A playlist with that name already exists.');
      }
      const actorId = getAuditUserId(req);
      const [result] = await pool.query('INSERT INTO playlists (name, fade_between_slides, created_by, modified_by) VALUES (?, ?, ?, ?)', [name, fadeBetweenSlides, actorId, actorId]);
      redirectAfterSave(req, res, '/playlists?edit=' + result.insertId, {
        closeUrl: '/playlists',
        newUrl: '/playlists/new',
        message: 'Playlist created.'
      });
    } catch (error) {
      next(error);
    }
  });

  app.post('/playlists/:id', requirePermission('playlists.update'), async function (req, res, next) {
    const connection = await pool.getConnection();
    try {
      const name = String(req.body.name || '').trim();
      const fadeBetweenSlides = req.body.fade_between_slides ? 1 : 0;
      if (!name) {
        return res.status(400).send('Playlist name is required.');
      }
      const playlist = await common.fetchPlaylistById(connection, Number(req.params.id));
      if (!playlist) {
        return res.status(404).send('Playlist not found');
      }
      if (await common.fetchDuplicateName(pool, 'playlists', name, playlist.id)) {
        return res.status(400).send('A playlist with that name already exists.');
      }

      const affectedScreens = await fetchScreensByPlaylistId(connection, playlist.id);

      const slideIds = readArrayField(req.body, ['slide_id[]', 'slide_id']);
      const durations = readArrayField(req.body, ['duration_seconds[]', 'duration_seconds']);
      const scheduleModes = readArrayField(req.body, ['schedule_mode[]', 'schedule_mode']);
      const scheduleStartDateTimes = readArrayField(req.body, ['schedule_start_datetime[]', 'schedule_start_datetime']);
      const scheduleEndDateTimes = readArrayField(req.body, ['schedule_end_datetime[]', 'schedule_end_datetime']);
      const scheduleStartTimes = readArrayField(req.body, ['schedule_start_time[]', 'schedule_start_time']);
      const scheduleEndTimes = readArrayField(req.body, ['schedule_end_time[]', 'schedule_end_time']);
      const scheduleDaysJsonValues = readArrayField(req.body, ['schedule_days_json[]', 'schedule_days_json']);

      if (durations.length && durations.length !== slideIds.length) {
        return res.status(400).send('Playlist slide data is invalid.');
      }
      if (scheduleModes.length && scheduleModes.length !== slideIds.length) {
        return res.status(400).send('Playlist schedule data is invalid.');
      }

      const normalizedSlides = [];
      const seenSlideIds = new Set();
      for (let i = 0; i < slideIds.length; i += 1) {
        const slideId = Number(slideIds[i]);
        if (!Number.isInteger(slideId) || slideId <= 0) {
          return res.status(400).send('Invalid slide selection.');
        }
        if (seenSlideIds.has(slideId)) {
          return res.status(400).send('A slide can only be added to a playlist once.');
        }
        seenSlideIds.add(slideId);

        const durationRaw = Number(durations[i]);
        const durationSeconds = Number.isFinite(durationRaw) ? Math.max(1, Math.trunc(durationRaw)) : 10;
        const scheduleMode = normalizeScheduleMode(scheduleModes[i]);

        let scheduleStartDatetime = null;
        let scheduleEndDatetime = null;
        let scheduleStartTime = null;
        let scheduleEndTime = null;
        let scheduleDaysJson = null;

        if (scheduleMode === 'dates') {
          scheduleStartDatetime = parseDateTimeLocal(scheduleStartDateTimes[i]);
          scheduleEndDatetime = parseDateTimeLocal(scheduleEndDateTimes[i]);
          if (!scheduleStartDatetime || !scheduleEndDatetime) {
            return res.status(400).send('Start and end datetimes are required for date scheduling.');
          }
          if (scheduleEndDatetime < scheduleStartDatetime) {
            return res.status(400).send('End datetime must be after start datetime.');
          }
        } else if (scheduleMode === 'times') {
          scheduleStartTime = parseTimeLocal(scheduleStartTimes[i]);
          scheduleEndTime = parseTimeLocal(scheduleEndTimes[i]);
          if (!scheduleStartTime || !scheduleEndTime) {
            return res.status(400).send('Start and end times are required for time scheduling.');
          }

          let scheduleDays = [];
          try {
            const parsedDays = JSON.parse(String(scheduleDaysJsonValues[i] || '[]'));
            scheduleDays = Array.isArray(parsedDays) ? parsedDays : [];
          } catch (_error) {
            scheduleDays = [];
          }
          scheduleDays = scheduleDays
            .map(function (value) { return Number(value); })
            .filter(function (value) { return Number.isInteger(value) && value >= 0 && value <= 6; });
          if (!scheduleDays.length) {
            return res.status(400).send('Select at least one day for time scheduling.');
          }
          scheduleDaysJson = JSON.stringify(Array.from(new Set(scheduleDays)).sort());
        }

        normalizedSlides.push({
          slideId,
          position: i,
          durationSeconds,
          scheduleMode,
          scheduleStartDatetime,
          scheduleEndDatetime,
          scheduleStartTime,
          scheduleEndTime,
          scheduleDaysJson
        });
      }

      if (normalizedSlides.length) {
        const [slides] = await connection.query(
          `SELECT sl.id, cs.width AS canvas_width, cs.height AS canvas_height
           FROM slides sl
           LEFT JOIN slide_templates st ON st.id = sl.template_id
           LEFT JOIN canvas_sizes cs ON cs.id = st.canvas_size_id
           WHERE sl.id IN (?)`,
          [normalizedSlides.map(function (item) { return item.slideId; })]
        );
        if (slides.length !== normalizedSlides.length) {
          return res.status(400).send('One or more selected slides no longer exist.');
        }
        const signatures = Array.from(new Set(
          slides
            .map(function (slide) { return getCanvasSignature(slide.canvas_width, slide.canvas_height); })
            .filter(Boolean)
        ));
        if (signatures.length > 1) {
          return res.status(400).send('All playlist slides must share the same canvas size.');
        }
      }

      const actorId = getAuditUserId(req);

      await connection.beginTransaction();
      await connection.query('UPDATE playlists SET name = ?, fade_between_slides = ?, modified_by = ? WHERE id = ?', [name, fadeBetweenSlides, actorId, playlist.id]);
      await connection.query('DELETE FROM playlist_slides WHERE playlist_id = ?', [playlist.id]);
      for (let i = 0; i < normalizedSlides.length; i += 1) {
        const item = normalizedSlides[i];
        await connection.query(
          'INSERT INTO playlist_slides (playlist_id, slide_id, position, duration_seconds, schedule_mode, schedule_start_datetime, schedule_end_datetime, schedule_start_time, schedule_end_time, schedule_days_json, created_by, modified_by) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)',
          [
            playlist.id,
            item.slideId,
            item.position,
            item.durationSeconds,
            item.scheduleMode,
            item.scheduleStartDatetime,
            item.scheduleEndDatetime,
            item.scheduleStartTime,
            item.scheduleEndTime,
            item.scheduleDaysJson,
            actorId,
            actorId
          ]
        );
      }
      await connection.commit();
      await notifyPlayerScreens(affectedScreens, 'refresh');
      await broadcastDashboardState();
      redirectAfterSave(req, res, '/playlists?edit=' + playlist.id, {
        closeUrl: '/playlists',
        newUrl: '/playlists/new',
        message: 'Playlist updated.'
      });
    } catch (error) {
      try {
        await connection.rollback();
      } catch (_rollbackError) {
        // Ignore rollback failures and surface the original error.
      }
      next(error);
    } finally {
      connection.release();
    }
  });

  app.post('/playlists/:id/delete', requirePermission('playlists.delete'), async function (req, res, next) {
    try {
      const playlist = await common.fetchPlaylistById(pool, Number(req.params.id));
      if (!playlist) {
        return res.status(404).send('Playlist not found');
      }
      const blockMessage = await getPlaylistDeleteBlockMessage(pool, playlist);
      if (blockMessage) {
        return res.redirect('/playlists?message=' + encodeURIComponent(blockMessage));
      }
      await pool.query('DELETE FROM playlists WHERE id = ?', [playlist.id]);
      res.redirect('/playlists?message=' + encodeURIComponent('Playlist deleted.'));
    } catch (error) {
      next(error);
    }
  });

  app.post('/playlists/:id/slides', requirePermission('playlists.update'), async function (req, res, next) {
    try {
      const playlist = await common.fetchPlaylistById(pool, Number(req.params.id));
      if (!playlist) {
        return res.status(404).send('Playlist not found');
      }
      const slideId = Number(req.body.slide_id);
      if (!slideId) {
        return res.status(400).send('Slide is required.');
      }
      const playlistCanvasSignature = await fetchPlaylistCanvasSignature(pool, playlist.id);
      if (playlistCanvasSignature === 'mismatch') {
        return res.status(400).send('This playlist already contains slides with different canvas sizes.');
      }
      const slide = await common.fetchSlideById(pool, slideId);
      if (!slide) {
        return res.status(404).send('Slide not found');
      }
      const slideCanvasSignature = getCanvasSignature(slide.canvas_width, slide.canvas_height);
      if (playlistCanvasSignature && slideCanvasSignature !== playlistCanvasSignature) {
        return res.status(400).send('The slide canvas size must match the existing playlist items.');
      }
      const durationSeconds = Math.max(1, Number(req.body.duration_seconds || 10));
      const [positionRows] = await pool.query('SELECT COALESCE(MAX(position), -1) AS max_position FROM playlist_slides WHERE playlist_id = ?', [playlist.id]);
      const nextPosition = Number(positionRows[0].max_position) + 1;
      const actorId = getAuditUserId(req);
      await pool.query('INSERT INTO playlist_slides (playlist_id, slide_id, position, duration_seconds, created_by, modified_by) VALUES (?, ?, ?, ?, ?, ?)', [playlist.id, slideId, nextPosition, durationSeconds, actorId, actorId]);
      await notifyPlayerScreens(await fetchScreensByPlaylistId(pool, playlist.id), 'refresh');
      await broadcastDashboardState();
      res.redirect('/playlists?edit=' + playlist.id + '&message=' + encodeURIComponent('Slide added to playlist.'));
    } catch (error) {
      next(error);
    }
  });

  app.post('/playlists/:id/slides/:playlistSlideId', requirePermission('playlists.update'), async function (req, res, next) {
    try {
      const playlist = await common.fetchPlaylistById(pool, Number(req.params.id));
      if (!playlist) {
        return res.status(404).send('Playlist not found');
      }
      const playlistSlideId = Number(req.params.playlistSlideId);
      const durationSeconds = Math.max(1, Number(req.body.duration_seconds || 10));
      const actorId = getAuditUserId(req);
      const [result] = await pool.query(
        'UPDATE playlist_slides SET duration_seconds = ?, modified_by = ? WHERE id = ? AND playlist_id = ?',
        [durationSeconds, actorId, playlistSlideId, playlist.id]
      );
      if (!result.affectedRows) {
        return res.status(404).send('Playlist slide not found');
      }
      await notifyPlayerScreens(await fetchScreensByPlaylistId(pool, playlist.id), 'refresh');
      await broadcastDashboardState();
      res.redirect('/playlists?edit=' + playlist.id + '&message=' + encodeURIComponent('Slide duration updated.'));
    } catch (error) {
      next(error);
    }
  });

  app.post('/playlists/:id/slides/:playlistSlideId/move', requirePermission('playlists.update'), async function (req, res, next) {
    const connection = await pool.getConnection();
    try {
      const playlist = await common.fetchPlaylistById(connection, Number(req.params.id));
      if (!playlist) {
        return res.status(404).send('Playlist not found');
      }
      const playlistSlideId = Number(req.params.playlistSlideId);
      const direction = String(req.body.direction || '').toLowerCase();
      if (direction !== 'up' && direction !== 'down') {
        return res.status(400).send('Invalid move direction.');
      }

      await connection.beginTransaction();
      const orderedSlides = await fetchOrderedPlaylistSlides(connection, playlist.id);
      const currentIndex = orderedSlides.findIndex(function (item) {
        return Number(item.id) === playlistSlideId;
      });
      if (currentIndex === -1) {
        await connection.rollback();
        return res.status(404).send('Playlist slide not found');
      }

      const swapIndex = direction === 'up' ? currentIndex - 1 : currentIndex + 1;
      if (swapIndex < 0 || swapIndex >= orderedSlides.length) {
        await connection.rollback();
        return res.redirect('/playlists?edit=' + playlist.id + '&message=' + encodeURIComponent('Slide is already at the ' + (direction === 'up' ? 'top' : 'bottom') + '.'));
      }

      const currentSlide = orderedSlides[currentIndex];
      const swapSlide = orderedSlides[swapIndex];
      const actorId = getAuditUserId(req);

      await connection.query('UPDATE playlist_slides SET position = ?, modified_by = ? WHERE id = ? AND playlist_id = ?', [swapSlide.position, actorId, currentSlide.id, playlist.id]);
      await connection.query('UPDATE playlist_slides SET position = ?, modified_by = ? WHERE id = ? AND playlist_id = ?', [currentSlide.position, actorId, swapSlide.id, playlist.id]);
      await connection.commit();
      await notifyPlayerScreens(await fetchScreensByPlaylistId(connection, playlist.id), 'refresh');
      await broadcastDashboardState();
      res.redirect('/playlists?edit=' + playlist.id + '&message=' + encodeURIComponent('Slide order updated.'));
    } catch (error) {
      await connection.rollback();
      next(error);
    } finally {
      connection.release();
    }
  });

  app.get('/playlists/:id/slides/:playlistSlideId/config', requirePermission('playlists.update'), async function (req, res, next) {
    try {
      const playlist = await common.fetchPlaylistById(pool, Number(req.params.id));
      if (!playlist) {
        return res.status(404).send('Playlist not found');
      }
      const data = await common.fetchAdminData(pool);
      let playlistSlide = (data.playlistSlides || []).find(function (item) {
        return item.id === Number(req.params.playlistSlideId) && item.playlist_id === playlist.id;
      });
      if (!playlistSlide && Number(req.params.playlistSlideId) !== 0) {
        return res.status(404).send('Playlist slide not found');
      }
      const scheduleMode = typeof req.query.schedule_mode === 'string' && req.query.schedule_mode ? String(req.query.schedule_mode) : String(playlistSlide && playlistSlide.schedule_mode || 'always');
      const scheduleStartDatetime = typeof req.query.schedule_start_datetime === 'string' ? String(req.query.schedule_start_datetime) : (playlistSlide && playlistSlide.schedule_start_datetime) || null;
      const scheduleEndDatetime = typeof req.query.schedule_end_datetime === 'string' ? String(req.query.schedule_end_datetime) : (playlistSlide && playlistSlide.schedule_end_datetime) || null;
      const scheduleStartTime = typeof req.query.schedule_start_time === 'string' ? String(req.query.schedule_start_time) : (playlistSlide && playlistSlide.schedule_start_time) || null;
      const scheduleEndTime = typeof req.query.schedule_end_time === 'string' ? String(req.query.schedule_end_time) : (playlistSlide && playlistSlide.schedule_end_time) || null;
      const scheduleDaysJson = typeof req.query.schedule_days_json === 'string' ? String(req.query.schedule_days_json) : (playlistSlide && playlistSlide.schedule_days_json) || '[]';
      const scheduleDays = common.parseJsonSafe(scheduleDaysJson) || [];

      playlistSlide = Object.assign({}, playlistSlide || {}, {
        id: playlistSlide ? playlistSlide.id : 0,
        schedule_mode: scheduleMode,
        schedule_days_json: scheduleDaysJson,
        schedule_days: scheduleDays,
        schedule_start_datetime: scheduleStartDatetime,
        schedule_end_datetime: scheduleEndDatetime,
        schedule_start_time: scheduleStartTime,
        schedule_end_time: scheduleEndTime
      });
      return res.send(pages.renderPlaylistSlideConfigPage(playlist, playlistSlide, req.query.message ? String(req.query.message) : '', req.query.row_key ? String(req.query.row_key) : '', req.currentUser));
    } catch (error) {
      next(error);
    }
  });

  app.post('/playlists/:id/slides/:playlistSlideId/config', requirePermission('playlists.update'), async function (req, res, next) {
    try {
      const playlist = await common.fetchPlaylistById(pool, Number(req.params.id));
      if (!playlist) {
        return res.status(404).send('Playlist not found');
      }
      const rowKey = String(req.body.row_key || '').trim();
      if (rowKey) {
        return res.status(400).send('Schedule changes from the playlist editor are staged until you click Save changes.');
      }
      const playlistSlideId = Number(req.params.playlistSlideId);
      let scheduleMode = normalizeScheduleMode(req.body.schedule_mode);
      let scheduleStartDatetime = null;
      let scheduleEndDatetime = null;
      let scheduleStartTime = null;
      let scheduleEndTime = null;
      let scheduleDaysJson = null;

      const hasDateRange = Boolean(req.body.schedule_start_datetime && req.body.schedule_end_datetime);
      const hasTimeRange = Boolean(req.body.schedule_start_time && req.body.schedule_end_time);
      const hasSelectedDays = Boolean(readArrayField(req.body, ['schedule_days', 'schedule_days[]']).length);

      if (scheduleMode === 'dates' && !hasDateRange) {
        scheduleMode = 'always';
      } else if (scheduleMode === 'times' && (!hasTimeRange || !hasSelectedDays)) {
        scheduleMode = 'always';
      }

      if (scheduleMode === 'dates') {
        scheduleStartDatetime = parseDateTimeLocal(req.body.schedule_start_datetime);
        scheduleEndDatetime = parseDateTimeLocal(req.body.schedule_end_datetime);
        if (!scheduleStartDatetime || !scheduleEndDatetime) {
          scheduleMode = 'always';
          scheduleStartDatetime = null;
          scheduleEndDatetime = null;
        } else if (scheduleEndDatetime < scheduleStartDatetime) {
          return res.status(400).send('End datetime must be after start datetime.');
        }
      } else if (scheduleMode === 'times') {
        scheduleStartTime = parseTimeLocal(req.body.schedule_start_time);
        scheduleEndTime = parseTimeLocal(req.body.schedule_end_time);
        const scheduleDays = readArrayField(req.body, ['schedule_days', 'schedule_days[]']).map(function (value) {
          return Number(value);
        }).filter(function (value) {
          return Number.isInteger(value) && value >= 0 && value <= 6;
        });
        if (!scheduleStartTime || !scheduleEndTime) {
          scheduleMode = 'always';
          scheduleStartTime = null;
          scheduleEndTime = null;
          scheduleDaysJson = null;
        } else if (!scheduleDays.length) {
          scheduleMode = 'always';
          scheduleStartTime = null;
          scheduleEndTime = null;
          scheduleDaysJson = null;
        } else {
          if (scheduleEndTime < scheduleStartTime) {
            return res.status(400).send('End time must be after start time.');
          }
          scheduleDaysJson = JSON.stringify(Array.from(new Set(scheduleDays)).sort());
        }
      }

      const actorId = getAuditUserId(req);
      const [result] = await pool.query(
        'UPDATE playlist_slides SET schedule_mode = ?, schedule_start_datetime = ?, schedule_end_datetime = ?, schedule_start_time = ?, schedule_end_time = ?, schedule_days_json = ?, modified_by = ? WHERE id = ? AND playlist_id = ?',
        [scheduleMode, scheduleStartDatetime, scheduleEndDatetime, scheduleStartTime, scheduleEndTime, scheduleDaysJson, actorId, playlistSlideId, playlist.id]
      );
      if (!result.affectedRows) {
        return res.status(404).send('Playlist slide not found');
      }
      await notifyPlayerScreens(await fetchScreensByPlaylistId(pool, playlist.id), 'refresh');
      await broadcastDashboardState();
      res.redirect('/playlists?edit=' + playlist.id + '&message=' + encodeURIComponent('Slide timings updated.'));
    } catch (error) {
      next(error);
    }
  });

  app.post('/playlists/:id/slides/:playlistSlideId/delete', requirePermission('playlists.update'), async function (req, res, next) {
    try {
      const playlist = await common.fetchPlaylistById(pool, Number(req.params.id));
      if (!playlist) {
        return res.status(404).send('Playlist not found');
      }
      await pool.query('DELETE FROM playlist_slides WHERE id = ? AND playlist_id = ?', [Number(req.params.playlistSlideId), playlist.id]);
      await notifyPlayerScreens(await fetchScreensByPlaylistId(pool, playlist.id), 'refresh');
      await broadcastDashboardState();
      res.redirect('/playlists?edit=' + playlist.id + '&message=' + encodeURIComponent('Slide removed.'));
    } catch (error) {
      next(error);
    }
  });

  app.get('/screens/new', requirePermission('screens.create'), async function (req, res, next) {
    try {
      const data = await common.fetchScreenEditData(pool);
      res.send(pages.renderScreenFormPage(data, req.query.message ? String(req.query.message) : '', req.currentUser));
    } catch (error) {
      next(error);
    }
  });

  app.post('/screens', requirePermission('screens.create'), async function (req, res, next) {
    try {
      const name = String(req.body.name || '').trim();
      if (!name) {
        return res.status(400).send('Screen name is required.');
      }
      if (await common.fetchDuplicateName(pool, 'screens', name)) {
        return res.status(400).send('A screen with that name already exists.');
      }
      const slugInput = String(req.body.slug || '').trim();
      const playlistId = req.body.playlist_id ? Number(req.body.playlist_id) : null;
      const slug = await common.uniqueScreenSlug(pool, common.slugify(slugInput || name));
      const actorId = getAuditUserId(req);
      const [result] = await pool.query('INSERT INTO screens (name, slug, playlist_id, created_by, modified_by) VALUES (?, ?, ?, ?, ?)', [name, slug, playlistId, actorId, actorId]);
      redirectAfterSave(req, res, '/screens?edit=' + result.insertId, {
        closeUrl: '/screens',
        newUrl: '/screens/new',
        message: 'Screen created.'
      });
    } catch (error) {
      next(error);
    }
  });

  app.post('/screens/:id', requirePermission('screens.update'), async function (req, res, next) {
    try {
      const name = String(req.body.name || '').trim();
      if (!name) {
        return res.status(400).send('Screen name is required.');
      }
      const screen = await common.fetchScreenById(pool, Number(req.params.id));
      if (!screen) {
        return res.status(404).send('Screen not found');
      }
      if (await common.fetchDuplicateName(pool, 'screens', name, screen.id)) {
        return res.status(400).send('A screen with that name already exists.');
      }
      const slugInput = String(req.body.slug || '').trim();
      const playlistId = req.body.playlist_id ? Number(req.body.playlist_id) : null;
      const previousPlaylistId = screen.playlist_id;
      const slug = await common.uniqueScreenSlug(pool, common.slugify(slugInput || name), screen.id);
      const previousSlug = String(screen.slug || '').trim();
      await pool.query('UPDATE screens SET name = ?, slug = ?, playlist_id = ?, modified_by = ? WHERE id = ?', [name, slug, playlistId, getAuditUserId(req), screen.id]);
      if (previousPlaylistId !== playlistId && previousSlug) {
        await notifyPlayerScreens([previousSlug], 'refresh');
      }
      if (previousSlug && previousSlug !== slug) {
        await forwardPlayerCommand(previousSlug, {
          command: 'redirect',
          url: `${PLAYER_PUBLIC_BASE_URL}/screen/${encodeURIComponent(slug)}`
        });
      }
      redirectAfterSave(req, res, '/screens?edit=' + screen.id, {
        closeUrl: '/screens',
        newUrl: '/screens/new',
        message: 'Screen updated.'
      });
    } catch (error) {
      next(error);
    }
  });

  app.post('/screens/:id/delete', requirePermission('screens.delete'), async function (req, res, next) {
    try {
      const screen = await common.fetchScreenById(pool, Number(req.params.id));
      if (!screen) {
        return res.status(404).send('Screen not found');
      }
      const blockMessage = await getScreenDeleteBlockMessage(pool, screen, getScreenConnections);
      if (blockMessage) {
        return res.redirect('/screens?message=' + encodeURIComponent(blockMessage));
      }
      await pool.query('DELETE FROM screens WHERE id = ?', [screen.id]);
      res.redirect('/screens?message=' + encodeURIComponent('Screen deleted.'));
    } catch (error) {
      next(error);
    }
  });
};