Add album created and updated date placeholders

Added {album_created} and {album_updated} placeholders to album-related
templates, using the existing date_format for formatting:

- periodic_album_template: reads from entity attributes
- scheduled_assets_message: reads from entity attributes (per_album/random mode)
- message_assets_added: looks up entity by event_album_id
- message_assets_removed: looks up entity by event_album_id
- message_asset_image/video: added placeholders

For combined mode, album dates are empty (no single album).

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Common/Immich Album Watcher/blueprint.yaml

@@ -147,7 +147,7 @@ blueprint:
           name: "Assets Added Message"
           description: >
             Message sent when assets are added to an album.
-            Variables: `{album_name}`, `{album_url}`, `{added_count}`, `{people}`, `{assets}`, `{video_warning}`, `{common_date}`, `{common_location}`
+            Variables: `{album_name}`, `{album_url}`, `{album_created}`, `{album_updated}`, `{added_count}`, `{people}`, `{assets}`, `{video_warning}`, `{common_date}`, `{common_location}`
           default: "📷 {added_count} new photo(s) added to album \"{album_name}\"{common_date}{common_location}.{people}{assets}{video_warning}"
           selector:
             text:
@@ -157,7 +157,7 @@ blueprint:
           name: "Assets Removed Message"
           description: >
             Message sent when assets are removed from an album.
-            Variables: `{album_name}`, `{album_url}`, `{removed_count}`
+            Variables: `{album_name}`, `{album_url}`, `{album_created}`, `{album_updated}`, `{removed_count}`
           default: "🗑️ {removed_count} photo(s) removed from album \"{album_name}\"."
           selector:
             text:
@@ -198,7 +198,7 @@ blueprint:
           name: "Image Asset Template"
           description: >
             Template for IMAGE assets in the list. Also used for Telegram media captions.
-            Variables: `{filename}`, `{description}`, `{type}`, `{created}`, `{created_if_unique}`, `{owner}`, `{url}`, `{download_url}`, `{photo_url}`, `{playback_url}`, `{people}`, `{album_name}`, `{is_favorite}`, `{rating}`, `{location}`, `{location_if_unique}`, `{city}`, `{state}`, `{country}`
+            Variables: `{filename}`, `{description}`, `{type}`, `{created}`, `{created_if_unique}`, `{owner}`, `{url}`, `{download_url}`, `{photo_url}`, `{playback_url}`, `{people}`, `{album_name}`, `{album_created}`, `{album_updated}`, `{is_favorite}`, `{rating}`, `{location}`, `{location_if_unique}`, `{city}`, `{state}`, `{country}`
           default: "\n  • 🖼️ {filename}"
           selector:
             text:
@@ -208,7 +208,7 @@ blueprint:
           name: "Video Asset Template"
           description: >
             Template for VIDEO assets in the list. Also used for Telegram media captions.
-            Variables: `{filename}`, `{description}`, `{type}`, `{created}`, `{created_if_unique}`, `{owner}`, `{url}`, `{download_url}`, `{photo_url}`, `{playback_url}`, `{people}`, `{album_name}`, `{is_favorite}`, `{rating}`, `{location}`, `{location_if_unique}`, `{city}`, `{state}`, `{country}`
+            Variables: `{filename}`, `{description}`, `{type}`, `{created}`, `{created_if_unique}`, `{owner}`, `{url}`, `{download_url}`, `{photo_url}`, `{playback_url}`, `{people}`, `{album_name}`, `{album_created}`, `{album_updated}`, `{is_favorite}`, `{rating}`, `{location}`, `{location_if_unique}`, `{city}`, `{state}`, `{country}`
           default: "\n  • 🎬 {filename}"
           selector:
             text:
@@ -469,7 +469,7 @@ blueprint:
           name: Album Item Template
           description: >
             Template for each album in the summary list.
-            Variables: `{album_name}`, `{album_id}`, `{album_url}`
+            Variables: `{album_name}`, `{album_id}`, `{album_url}`, `{album_created}`, `{album_updated}`
           default: "\n  • {album_name}: {album_url}"
           selector:
             text:
@@ -629,9 +629,10 @@ blueprint:
           name: Message Template
           description: >
             Message template for scheduled asset notifications.
-            Variables: `{album_name}`, `{album_url}`, `{asset_count}`, `{assets}`, `{common_date}`, `{common_location}`.
+            Variables: `{album_name}`, `{album_url}`, `{album_created}`, `{album_updated}`, `{asset_count}`, `{assets}`, `{common_date}`, `{common_location}`.
             `{common_date}` shows the date when all assets share the same date.
             `{common_location}` shows the location when all assets share the same location.
+            `{album_created}` and `{album_updated}` are empty in combined mode.
           default: "📸 Here are some photos from album \"{album_name}\":{assets}"
           selector:
             text:
@@ -842,6 +843,33 @@ variables:
   event_old_name: "{{ trigger.event.data.old_name | default('') if trigger.event is defined else '' }}"
   event_new_name: "{{ trigger.event.data.new_name | default('') if trigger.event is defined else '' }}"
 
+  # Album dates (look up from entity using event_album_id)
+  # Find the entity that has this album ID and get its created_at/updated_at attributes
+  event_album_entity: >
+    {% if trigger.event is defined %}
+      {% for entity_id in album_id_entities %}
+        {% if states(entity_id) == event_album_id %}
+          {{ entity_id }}
+        {% endif %}
+      {% endfor %}
+    {% endif %}
+  event_album_created: >
+    {% if event_album_entity | length > 0 %}
+      {% set created_attr = state_attr(event_album_entity | trim, 'created_at') | default('', true) %}
+      {% set created_dt = created_attr | as_datetime(none) if created_attr is string and created_attr | length > 0 else none %}
+      {{ created_dt.strftime(date_format) if created_dt else '' }}
+    {% else %}
+      {{ '' }}
+    {% endif %}
+  event_album_updated: >
+    {% if event_album_entity | length > 0 %}
+      {% set updated_attr = state_attr(event_album_entity | trim, 'updated_at') | default('', true) %}
+      {% set updated_dt = updated_attr | as_datetime(none) if updated_attr is string and updated_attr | length > 0 else none %}
+      {{ updated_dt.strftime(date_format) if updated_dt else '' }}
+    {% else %}
+      {{ '' }}
+    {% endif %}
+
   # ---------------------------------------------------------------------------
   # Computed Values
   # ---------------------------------------------------------------------------
@@ -959,6 +987,8 @@ variables:
           | replace('{playback_url}', asset.playback_url | default(''))
           | replace('{people}', (asset.people | default([])) | join(', '))
           | replace('{album_name}', event_album_name)
+          | replace('{album_created}', event_album_created)
+          | replace('{album_updated}', event_album_updated)
           | replace('{is_favorite}', is_favorite)
           | replace('{rating}', rating)
           | replace('{location}', formatted_location)
@@ -1048,7 +1078,7 @@ variables:
     {% endif %}
 
   # Format the albums list for periodic summary
-  # Reads album name and share URL from album ID entity's attributes
+  # Reads album name, share URL, and dates from album ID entity's attributes
   periodic_albums_list: >
     {% set ns = namespace(items = '') %}
     {% for i in range(album_id_entities | length) %}
@@ -1059,10 +1089,18 @@ variables:
         {% set name = name_attr if name_attr not in [none, '', 'unknown', 'unavailable'] else id %}
         {% set url_attr = state_attr(entity_id, 'share_url') %}
         {% set url = url_attr if url_attr not in [none, 'unknown', 'unavailable'] else '' %}
+        {% set created_attr = state_attr(entity_id, 'created_at') | default('', true) %}
+        {% set created_dt = created_attr | as_datetime(none) if created_attr is string and created_attr | length > 0 else none %}
+        {% set album_created = created_dt.strftime(date_format) if created_dt else '' %}
+        {% set updated_attr = state_attr(entity_id, 'updated_at') | default('', true) %}
+        {% set updated_dt = updated_attr | as_datetime(none) if updated_attr is string and updated_attr | length > 0 else none %}
+        {% set album_updated = updated_dt.strftime(date_format) if updated_dt else '' %}
         {% set item = periodic_album_template
           | replace('{album_name}', name)
           | replace('{album_id}', id)
-          | replace('{album_url}', url) %}
+          | replace('{album_url}', url)
+          | replace('{album_created}', album_created)
+          | replace('{album_updated}', album_updated) %}
         {% set ns.items = ns.items ~ item %}
       {% endif %}
     {% endfor %}
@@ -1187,6 +1225,14 @@ action:
                             current_album_url: >
                               {% set url_attr = state_attr(current_album_entity, 'share_url') %}
                               {{ url_attr if url_attr not in [none, 'unknown', 'unavailable'] else '' }}
+                            current_album_created: >
+                              {% set created_attr = state_attr(current_album_entity, 'created_at') | default('', true) %}
+                              {% set created_dt = created_attr | as_datetime(none) if created_attr is string and created_attr | length > 0 else none %}
+                              {{ created_dt.strftime(date_format) if created_dt else '' }}
+                            current_album_updated: >
+                              {% set updated_attr = state_attr(current_album_entity, 'updated_at') | default('', true) %}
+                              {% set updated_dt = updated_attr | as_datetime(none) if updated_attr is string and updated_attr | length > 0 else none %}
+                              {{ updated_dt.strftime(date_format) if updated_dt else '' }}
 
                         # Build service data dynamically (omit optional params when not set)
                         - variables:
@@ -1307,6 +1353,8 @@ action:
                                           | replace('{playback_url}', asset.playback_url | default(''))
                                           | replace('{people}', (asset.people | default([])) | join(', '))
                                           | replace('{album_name}', current_album_name)
+                                          | replace('{album_created}', current_album_created)
+                                          | replace('{album_updated}', current_album_updated)
                                           | replace('{is_favorite}', is_favorite)
                                           | replace('{rating}', rating)
                                           | replace('{location}', formatted_location)
@@ -1323,6 +1371,8 @@ action:
                                       {{ scheduled_assets_message_template
                                          | replace('{album_name}', current_album_name)
                                          | replace('{album_url}', current_album_url)
+                                         | replace('{album_created}', current_album_created)
+                                         | replace('{album_updated}', current_album_updated)
                                          | replace('{asset_count}', fetched_asset_count | string)
                                          | replace('{common_date}', sched_common_date)
                                          | replace('{common_location}', sched_common_location)
@@ -1555,6 +1605,8 @@ action:
                                     | replace('{playback_url}', asset.playback_url | default(''))
                                     | replace('{people}', (asset.people | default([])) | join(', '))
                                     | replace('{album_name}', combined_album_names)
+                                    | replace('{album_created}', '')
+                                    | replace('{album_updated}', '')
                                     | replace('{is_favorite}', is_favorite)
                                     | replace('{rating}', rating)
                                     | replace('{location}', formatted_location)
@@ -1571,6 +1623,8 @@ action:
                                 {{ scheduled_assets_message_template
                                    | replace('{album_name}', combined_album_names)
                                    | replace('{album_url}', '')
+                                   | replace('{album_created}', '')
+                                   | replace('{album_updated}', '')
                                    | replace('{asset_count}', combined_asset_count | string)
                                    | replace('{common_date}', comb_common_date)
                                    | replace('{common_location}', comb_common_location)
@@ -1720,6 +1774,8 @@ action:
                 {%- set msg_video_warning = telegram_video_warning_template if (send_telegram_media and has_videos_in_assets and telegram_video_warning_template | length > 0) else '' -%}
                 {{ tpl | replace('{album_name}', event_album_name)
                        | replace('{album_url}', event_album_url)
+                       | replace('{album_created}', event_album_created)
+                       | replace('{album_updated}', event_album_updated)
                        | replace('{added_count}', filtered_added_count | string)
                        | replace('{people}', people_list)
                        | replace('{assets}', assets_list)
@@ -1745,6 +1801,8 @@ action:
                 {% set tpl = message_assets_removed_template %}
                 {{ tpl | replace('{album_name}', event_album_name)
                        | replace('{album_url}', event_album_url)
+                       | replace('{album_created}', event_album_created)
+                       | replace('{album_updated}', event_album_updated)
                        | replace('{removed_count}', event_removed_count | string) }}
 
           - service: notify.send_message
@@ -1774,6 +1832,8 @@ action:
                         {%- set chg_video_warning = telegram_video_warning_template if (send_telegram_media and has_videos_in_assets and telegram_video_warning_template | length > 0) else '' -%}
                         {{ tpl | replace('{album_name}', event_album_name)
                                | replace('{album_url}', event_album_url)
+                               | replace('{album_created}', event_album_created)
+                               | replace('{album_updated}', event_album_updated)
                                | replace('{added_count}', filtered_added_count | string)
                                | replace('{people}', people_list)
                                | replace('{assets}', assets_list)
@@ -1798,6 +1858,8 @@ action:
                         {% set tpl = message_assets_removed_template %}
                         {{ tpl | replace('{album_name}', event_album_name)
                                | replace('{album_url}', event_album_url)
+                               | replace('{album_created}', event_album_created)
+                               | replace('{album_updated}', event_album_updated)
                                | replace('{removed_count}', event_removed_count | string) }}
 
                   - service: notify.send_message
@@ -1954,6 +2016,8 @@ action:
                 {%- set tg_video_warning = telegram_video_warning_template if (send_telegram_media and has_videos_in_assets and telegram_video_warning_template | length > 0) else '' -%}
                 {{ tpl | replace('{album_name}', event_album_name)
                        | replace('{album_url}', event_album_url)
+                       | replace('{album_created}', event_album_created)
+                       | replace('{album_updated}', event_album_updated)
                        | replace('{added_count}', filtered_added_count | string)
                        | replace('{people}', people_list)
                        | replace('{assets}', assets_list)

manifest.json

@@ -1,3 +1,3 @@
 {
-  "version": "1.22.10"
+  "version": "1.23.0"
 }