Replace video_warning with target_type + has_videos/has_photos

Major template system improvements:
- Remove video_warning field from TemplateConfig model
- Add target_type, has_videos, has_photos to template context
- Templates use {% if target_type == "telegram" and has_videos %}
  for conditional Telegram warnings instead of a separate field
- date_format moved from "Telegram" to "Settings" group
- Add target type selector (Telegram/Webhook) in template editor
  to preview how templates render for each target type
- All template slots now use JinjaEditor (not plain <input>)
- Preview endpoint accepts target_type parameter
- Clean up TemplateConfigCreate schema (remove stale fields)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/server/src/immich_watcher_server/api/template_configs.py

@@ -67,7 +67,9 @@ _SAMPLE_CONTEXT = {
     "removed_assets": ["asset-id-1", "asset-id-2"],
     "people": ["Alice", "Bob"],
     "shared": True,
-    "video_warning": "⚠️ Note: Videos may not be sent due to Telegram's 50 MB file size limit.",
+    "target_type": "telegram",
+    "has_videos": True,
+    "has_photos": True,
     # Rename fields (always present, empty for non-rename events)
     "old_name": "Old Album",
     "new_name": "New Album",
@@ -82,27 +84,16 @@ _SAMPLE_CONTEXT = {
 
 class TemplateConfigCreate(BaseModel):
     name: str
+    description: str | None = None
+    icon: str | None = None
     message_assets_added: str | None = None
     message_assets_removed: str | None = None
     message_album_renamed: str | None = None
     message_album_deleted: str | None = None
-    message_asset_image: str | None = None
-    message_asset_video: str | None = None
-    message_assets_format: str | None = None
-    message_assets_more: str | None = None
-    message_people_format: str | None = None
-    date_format: str | None = None
-    common_date_template: str | None = None
-    date_if_unique_template: str | None = None
-    location_format: str | None = None
-    common_location_template: str | None = None
-    location_if_unique_template: str | None = None
-    favorite_indicator: str | None = None
     periodic_summary_message: str | None = None
-    periodic_album_template: str | None = None
     scheduled_assets_message: str | None = None
     memory_mode_message: str | None = None
-    video_warning: str | None = None
+    date_format: str | None = None
 
 
 TemplateConfigUpdate = TemplateConfigCreate  # Same shape, all optional
@@ -203,6 +194,7 @@ async def preview_config(
 
 class PreviewRequest(BaseModel):
     template: str
+    target_type: str = "telegram"  # "telegram" or "webhook"
 
 
 @router.post("/preview-raw")
@@ -229,9 +221,10 @@ async def preview_raw(
 
     # Pass 2: render with strict undefined to catch unknown variables
     try:
+        ctx = {**_SAMPLE_CONTEXT, "target_type": body.target_type}
         strict_env = SandboxedEnvironment(autoescape=False, undefined=StrictUndefined)
         tmpl = strict_env.from_string(body.template)
-        rendered = tmpl.render(**_SAMPLE_CONTEXT)
+        rendered = tmpl.render(**ctx)
         return {"rendered": rendered}
     except UndefinedError as e:
         # Still a valid template syntactically, but references unknown variable

packages/server/src/immich_watcher_server/api/template_vars.py

@@ -47,7 +47,9 @@ TEMPLATE_VARIABLES: dict[str, dict] = {
             "removed_assets": "Always empty list",
             "people": "Detected people across all added assets (list of strings)",
             "shared": "Whether album is shared (boolean)",
-            "video_warning": "Video size warning text (set from template config if videos present)",
+            "target_type": "Target type: 'telegram' or 'webhook'",
+            "has_videos": "Whether added assets contain videos (boolean)",
+            "has_photos": "Whether added assets contain photos (boolean)",
             "old_name": "Always empty (for rename events)",
             "new_name": "Always empty (for rename events)",
         },
@@ -66,7 +68,7 @@ TEMPLATE_VARIABLES: dict[str, dict] = {
             "removed_assets": "List of removed asset IDs (strings)",
             "people": "People in the album (list of strings)",
             "shared": "Whether album is shared (boolean)",
-            "video_warning": "Always empty",
+            "target_type": "Target type: 'telegram' or 'webhook'",
             "old_name": "Always empty",
             "new_name": "Always empty",
         },

packages/server/src/immich_watcher_server/database/models.py

@@ -135,9 +135,6 @@ class TemplateConfig(SQLModel, table=True):
 
     # Settings
     date_format: str = Field(default="%d.%m.%Y, %H:%M UTC")
-    video_warning: str = Field(
-        default="⚠️ Note: Videos may not be sent due to Telegram's 50 MB file size limit."
-    )
 
     created_at: datetime = Field(default_factory=_utcnow)
 
@@ -204,7 +201,9 @@ _INLINE_TEMPLATES_REMOVED = {
         '{%- if asset.is_favorite %} ❤️{% endif %}\n'
         '{%- endfor %}'
         '{%- endif %}'
-        '{%- if video_warning %}\n\n{{ video_warning }}{%- endif %}'
+        '{%- if target_type == "telegram" and has_videos %}\n\n'
+        '⚠️ Videos may not be sent due to Telegram\'s 50 MB file size limit.'
+        '{%- endif %}'
     ),
 
     "message_assets_removed": '🗑️ {{ removed_count }} photo(s) removed from album "{{ album_name }}".',
@@ -254,7 +253,9 @@ DEFAULT_TEMPLATE_RU = {
         '{%- if asset.is_favorite %} ❤️{% endif %}\n'
         '{%- endfor %}'
         '{%- endif %}'
-        '{%- if video_warning %}\n\n{{ video_warning }}{%- endif %}'
+        '{%- if target_type == "telegram" and has_videos %}\n\n'
+        '⚠️ Видео может не отправиться из-за ограничения Telegram в 50 МБ.'
+        '{%- endif %}'
     ),
 
     "message_assets_removed": '🗑️ {{ removed_count }} фото удалено из альбома "{{ album_name }}".',

packages/server/src/immich_watcher_server/services/notifier.py

@@ -37,7 +37,7 @@ def _render(template_str: str, ctx: dict[str, Any]) -> str:
 
 def build_full_context(
     event_data: dict[str, Any],
-    template_config: TemplateConfig | None = None,
+    target_type: str = "webhook",
 ) -> dict[str, Any]:
     """Build template context by passing raw data directly to Jinja2.
 
@@ -50,10 +50,13 @@ def build_full_context(
     if isinstance(ctx.get("people"), str):
         ctx["people"] = [ctx["people"]] if ctx["people"] else []
 
-    # Video warning
+    # Asset type flags
     added_assets = ctx.get("added_assets", [])
-    has_videos = any(a.get("type") == "VIDEO" for a in added_assets) if added_assets else False
-    ctx["video_warning"] = (template_config.video_warning if template_config and has_videos else "")
+    ctx["has_videos"] = any(a.get("type") == "VIDEO" for a in added_assets) if added_assets else False
+    ctx["has_photos"] = any(a.get("type") == "IMAGE" for a in added_assets) if added_assets else False
+
+    # Target type for conditional formatting (e.g. Telegram video size warning)
+    ctx["target_type"] = target_type
 
     return ctx
 
@@ -75,7 +78,7 @@ async def send_notification(
 
     # Render with template engine
     if message is None:
-        ctx = build_full_context(event_data, template_config)
+        ctx = build_full_context(event_data, target_type=target.type)
 
         template_body = DEFAULT_TEMPLATE
         if template_config:

packages/server/src/immich_watcher_server/templates/en/assets_added.jinja2

@@ -9,7 +9,7 @@
     {%- if asset.is_favorite %} ❤️{% endif %}
 {%- endfor %}
 {%- endif %}
-{%- if video_warning %}
+{%- if target_type == "telegram" and has_videos %}
 
-{{ video_warning }}
+⚠️ Videos may not be sent due to Telegram's 50 MB file size limit.
 {%- endif %}

packages/server/src/immich_watcher_server/templates/ru/assets_added.jinja2

@@ -9,7 +9,7 @@
     {%- if asset.is_favorite %} ❤️{% endif %}
 {%- endfor %}
 {%- endif %}
-{%- if video_warning %}
+{%- if target_type == "telegram" and has_videos %}
 
-{{ video_warning }}
+⚠️ Видео может не отправиться из-за ограничения Telegram в 50 МБ.
 {%- endif %}