{
  "openapi": "3.0.0",
  "info": {
    "title": "GarminSync Service API - Health Metrics Sync",
    "version": "1.0.0",
    "description": "API for triggering and managing Garmin Connect health metrics synchronization."
  },
  "paths": {
    "/api/sync/garmin/health_metrics": {
      "post": {
        "summary": "Trigger Garmin Connect Health Metrics Synchronization",
        "operationId": "triggerHealthMetricsSync",
        "requestBody": {
          "description": "Optional parameters to control the synchronization process.",
          "required": false,
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "properties": {
                  "metric_types": {
                    "type": "array",
                    "items": {
                      "type": "string"
                    },
                    "description": "List of specific health metric types to synchronize (e.g., 'heart_rate', 'sleep'). If empty, syncs all available metrics."
                  },
                  "start_date": {
                    "type": "string",
                    "format": "date",
                    "description": "Optional start date (YYYY-MM-DD) to sync metrics from."
                  },
                  "end_date": {
                    "type": "string",
                    "format": "date",
                    "description": "Optional end date (YYYY-MM-DD) to sync metrics up to."
                  }
                }
              }
            }
          }
        },
        "responses": {
          "202": {
            "description": "Health metrics synchronization initiated successfully. Returns a SyncJob ID.",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "job_id": {
                      "type": "string",
                      "format": "uuid",
                      "description": "Unique identifier for the initiated synchronization job."
                    },
                    "status": {
                      "type": "string",
                      "description": "Current status of the job (e.g., 'pending', 'in_progress')."
                    },
                    "message": {
                      "type": "string",
                      "description": "Confirmation message."
                    }
                  },
                  "required": [
                    "job_id",
                    "status",
                    "message"
                  ]
                }
              }
            }
          },
          "401": {
            "description": "Unauthorized. User not authenticated with Garmin Connect."
          },
          "500": {
            "description": "Internal server error."
          }
        },
        "tags": [
          "Synchronization"
        ]
      }
    }
  }
}