UI Enhancements in IT Service Request, Announcements, Workforce and notification fixes

lib/providers/announcements_provider.dart

@@ -80,6 +80,14 @@ final announcementCommentsProvider =
   return wrapper.stream.map((result) => result.data);
 });
 
+/// Active banner announcements for the current user.
+/// Returns only non-template announcements whose banner is currently in its
+/// active time window ([Announcement.isBannerActive]).
+final activeBannerAnnouncementsProvider = Provider<List<Announcement>>((ref) {
+  final all = ref.watch(announcementsProvider).valueOrNull ?? [];
+  return all.where((a) => !a.isTemplate && a.isBannerActive).toList();
+});
+
 final announcementsControllerProvider =
     Provider<AnnouncementsController>((ref) {
   final client = ref.watch(supabaseClientProvider);
@@ -100,6 +108,10 @@ class AnnouncementsController {
     required List<String> visibleRoles,
     bool isTemplate = false,
     String? templateId,
+    bool bannerEnabled = false,
+    DateTime? bannerShowAt,
+    DateTime? bannerHideAt,
+    int? pushIntervalMinutes,
   }) async {
     final authorId = _client.auth.currentUser?.id;
     if (authorId == null) return;
@@ -111,6 +123,10 @@ class AnnouncementsController {
       'visible_roles': visibleRoles,
       'is_template': isTemplate,
       'template_id': templateId,
+      'banner_enabled': bannerEnabled,
+      'banner_show_at': bannerShowAt?.toUtc().toIso8601String(),
+      'banner_hide_at': bannerHideAt?.toUtc().toIso8601String(),
+      'push_interval_minutes': pushIntervalMinutes,
     };
 
     final result = await _client
@@ -123,6 +139,12 @@ class AnnouncementsController {
     // Don't send notifications for templates (they are drafts for reuse)
     if (isTemplate) return;
 
+    // Skip the one-time creation push when a scheduled banner push is
+    // configured. The banner scheduler will send the first push on its own
+    // interval, so firing an extra push here would result in two back-to-back
+    // notifications for the same announcement.
+    if (bannerEnabled && pushIntervalMinutes != null) return;
+
     // Query users whose role matches visible_roles, excluding the author
     try {
       final profiles = await _client
@@ -161,6 +183,13 @@ class AnnouncementsController {
     required String body,
     required List<String> visibleRoles,
     bool? isTemplate,
+    bool? bannerEnabled,
+    DateTime? bannerShowAt,
+    DateTime? bannerHideAt,
+    int? pushIntervalMinutes,
+    bool clearBannerShowAt = false,
+    bool clearBannerHideAt = false,
+    bool clearPushInterval = false,
   }) async {
     final payload = <String, dynamic>{
       'title': title,
@@ -168,12 +197,53 @@ class AnnouncementsController {
       'visible_roles': visibleRoles,
       'updated_at': AppTime.nowUtc().toIso8601String(),
     };
-    if (isTemplate != null) {
-      payload['is_template'] = isTemplate;
+    if (isTemplate != null) payload['is_template'] = isTemplate;
+    if (bannerEnabled != null) payload['banner_enabled'] = bannerEnabled;
+    if (bannerShowAt != null) {
+      payload['banner_show_at'] = bannerShowAt.toUtc().toIso8601String();
+    } else if (clearBannerShowAt) {
+      payload['banner_show_at'] = null;
+    }
+    if (bannerHideAt != null) {
+      payload['banner_hide_at'] = bannerHideAt.toUtc().toIso8601String();
+    } else if (clearBannerHideAt) {
+      payload['banner_hide_at'] = null;
+    }
+    if (pushIntervalMinutes != null) {
+      payload['push_interval_minutes'] = pushIntervalMinutes;
+    } else if (clearPushInterval) {
+      payload['push_interval_minutes'] = null;
     }
     await _client.from('announcements').update(payload).eq('id', id);
   }
 
+  /// Update only the banner settings on an existing announcement.
+  /// Intended for the "Manage Banner" popup available to the poster and admins.
+  Future<void> updateBannerSettings({
+    required String id,
+    required bool bannerEnabled,
+    DateTime? bannerShowAt,
+    DateTime? bannerHideAt,
+    int? pushIntervalMinutes,
+  }) async {
+    await _client.from('announcements').update({
+      'banner_enabled': bannerEnabled,
+      'banner_show_at': bannerShowAt?.toUtc().toIso8601String(),
+      'banner_hide_at': bannerHideAt?.toUtc().toIso8601String(),
+      'push_interval_minutes': pushIntervalMinutes,
+      'updated_at': AppTime.nowUtc().toIso8601String(),
+    }).eq('id', id);
+  }
+
+  /// Immediately stops a banner by setting [banner_hide_at] to now.
+  /// Usable by the poster or an admin.
+  Future<void> dismissBanner(String id) async {
+    await _client.from('announcements').update({
+      'banner_hide_at': AppTime.nowUtc().toIso8601String(),
+      'updated_at': AppTime.nowUtc().toIso8601String(),
+    }).eq('id', id);
+  }
+
   /// Delete an announcement.
   Future<void> deleteAnnouncement(String id) async {
     await _client.from('announcements').delete().eq('id', id);