Semantic Search Triggers (#18969)

* semantic trigger test

* database and model

* config

* embeddings maintainer and trigger post-processor

* api to create, edit, delete triggers

* frontend and i18n keys

* use thumbnail and description for trigger types

* image picker tweaks

* initial sync

* thumbnail file management

* clean up logs and use saved thumbnail on frontend

* publish mqtt messages

* webpush changes to enable trigger notifications

* add enabled switch

* add triggers from explore

* renaming and deletion fixes

* fix typing

* UI updates and add last triggering event time and link

* log exception instead of return in endpoint

* highlight entry in UI when triggered

* save and delete thumbnails directly

* remove alert action for now and add descriptions

* tweaks

* clean up

* fix types

* docs

* docs tweaks

* docs

* reuse enum

web/public/locales/en/components/dialog.json

@@ -109,5 +109,12 @@
       "markAsReviewed": "Mark as reviewed",
       "deleteNow": "Delete Now"
     }
+  },
+  "imagePicker": {
+    "selectImage": "Select a tracked object's thumbnail",
+    "search": {
+      "placeholder": "Search by label or sub label..."
+    },
+    "noImages": "No thumbnails found for this camera"
   }
 }

web/public/locales/en/views/explore.json

@@ -175,6 +175,10 @@
       "label": "Find similar",
       "aria": "Find similar tracked objects"
     },
+    "addTrigger": {
+      "label": "Add trigger",
+      "aria": "Add a trigger for this tracked object"
+    },
     "audioTranscription": {
       "label": "Transcribe",
       "aria": "Request audio transcription"

web/public/locales/en/views/settings.json

@@ -644,5 +644,100 @@
       "success": "Frigate+ settings have been saved. Restart Frigate to apply changes.",
       "error": "Failed to save config changes: {{errorMessage}}"
     }
+  },
+  "triggers": {
+    "documentTitle": "Triggers",
+    "management": {
+      "title": "Trigger Management",
+      "desc": "Manage triggers for {{camera}}. Use the thumbnail type to trigger on similar thumbnails to your selected tracked object, and the description type to trigger on similar descriptions to text you specify."
+    },
+    "addTrigger": "Add Trigger",
+    "table": {
+      "name": "Name",
+      "type": "Type",
+      "content": "Content",
+      "threshold": "Threshold",
+      "actions": "Actions",
+      "noTriggers": "No triggers configured for this camera.",
+      "edit": "Edit",
+      "deleteTrigger": "Delete Trigger",
+      "lastTriggered": "Last triggered"
+    },
+    "type": {
+      "thumbnail": "Thumbnail",
+      "description": "Description"
+    },
+    "actions": {
+      "alert": "Mark as Alert",
+      "notification": "Send Notification"
+    },
+    "dialog": {
+      "createTrigger": {
+        "title": "Create Trigger",
+        "desc": "Create a trigger for camera {{camera}}"
+      },
+      "editTrigger": {
+        "title": "Edit Trigger",
+        "desc": "Edit the settings for trigger on camera {{camera}}"
+      },
+      "deleteTrigger": {
+        "title": "Delete Trigger",
+        "desc": "Are you sure you want to delete the trigger <strong>{{triggerName}}</strong>? This action cannot be undone."
+      },
+      "form": {
+        "name": {
+          "title": "Name",
+          "placeholder": "Enter trigger name",
+          "error": {
+            "minLength": "Name must be at least 2 characters long.",
+            "invalidCharacters": "Name can only contain letters, numbers, underscores, and hyphens.",
+            "alreadyExists": "A trigger with this name already exists for this camera."
+          }
+        },
+        "enabled": {
+          "description": "Enable or disable this trigger"
+        },
+        "type": {
+          "title": "Type",
+          "placeholder": "Select trigger type"
+        },
+        "content": {
+          "title": "Content",
+          "imagePlaceholder": "Select an image",
+          "textPlaceholder": "Enter text content",
+          "imageDesc": "Select an image to trigger this action when a similar image is detected.",
+          "textDesc": "Enter text to trigger this action when a similar tracked object description is detected.",
+          "error": {
+            "required": "Content is required."
+          }
+        },
+        "threshold": {
+          "title": "Threshold",
+          "error": {
+            "min": "Threshold must be at least 0",
+            "max": "Threshold must be at most 1"
+          }
+        },
+        "actions": {
+          "title": "Actions",
+          "desc": "By default, Frigate fires an MQTT message for all triggers. Choose an additional action to perform when this trigger fires.",
+          "error": {
+            "min": "At least one action must be selected."
+          }
+        }
+      }
+    },
+    "toast": {
+      "success": {
+        "createTrigger": "Trigger {{name}} created successfully.",
+        "updateTrigger": "Trigger {{name}} updated successfully.",
+        "deleteTrigger": "Trigger {{name}} deleted successfully."
+      },
+      "error": {
+        "createTriggerFailed": "Failed to create trigger: {{errorMessage}}",
+        "updateTriggerFailed": "Failed to update trigger: {{errorMessage}}",
+        "deleteTriggerFailed": "Failed to delete trigger: {{errorMessage}}"
+      }
+    }
   }
 }