{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Firebase Runtime Configuration",
  "description": "Schema for the Firebase Runtime Configuration file (.firebaserc).",
  "type": "object",
  "additionalProperties": false,
  "definitions": {
    "projectTargets": {
      "type": "object",
      "description": "Resource target configurations for a specific Firebase project ID.",
      "properties": {
        "hosting": {
          "type": "object",
          "description": "Maps hosting target names (specified in firebase.json) to an array containing the Firebase Hosting site name.",
          "additionalProperties": {
            "type": "array",
            "description": "Array of Firebase Hosting site name(s) associated with this target name.",
            "items": {
              "type": "string"
            }
          }
        },
        "storage": {
          "type": "object",
          "description": "Maps storage target names (specified in firebase.json) to an array of Cloud Storage bucket names.",
          "additionalProperties": {
            "type": "array",
            "description": "Array of Cloud Storage bucket name(s) associated with this target name.",
            "items": {
              "type": "string"
            }
          }
        },
        "database": {
          "type": "object",
          "description": "Maps Realtime Database target names (specified in firebase.json) to an array of Realtime Database instance names.",
          "additionalProperties": {
            "type": "array",
            "description": "Array of Realtime Database instance name(s) associated with this target name.",
            "items": {
              "type": "string"
            }
          }
        },
        "firestore": {
          "type": "object",
          "description": "Maps Firestore target names (specified in firebase.json) to an array of Firestore database IDs.",
          "additionalProperties": {
            "type": "array",
            "description": "Array of Firestore database ID(s) associated with this target name.",
            "items": {
              "type": "string"
            }
          }
        }
      },
      "additionalProperties": {
        "type": "object",
        "description": "Resource targets for additional target types, mapping target names to an array of resource identifiers.",
        "additionalProperties": {
          "type": "array",
          "description": "Array of resource identifiers associated with this target name.",
          "items": {
            "type": "string"
          }
        }
      }
    },
    "projectEtags": {
      "type": "object",
      "description": "ETags for resources within a specific Firebase project.",
      "properties": {
        "extensionInstances": {
          "type": "object",
          "description": "Maps deployed Firebase Extension instance IDs to their deployed ETag hash.",
          "additionalProperties": {
            "type": "string",
            "description": "The ETag string returned by the Firebase Extensions API for this instance."
          }
        }
      },
      "additionalProperties": false
    }
  },
  "properties": {
    "projects": {
      "type": "object",
      "description": "Maps project aliases (such as 'default', 'staging', or 'production') to Firebase Project IDs.",
      "properties": {
        "default": {
          "type": "string",
          "description": "The default Firebase Project ID used when no project or alias is explicitly specified."
        }
      },
      "additionalProperties": {
        "type": "string",
        "description": "The Firebase Project ID associated with this alias."
      }
    },
    "targets": {
      "type": "object",
      "description": "Maps Firebase project IDs to named resource targets for multi-resource deployments.",
      "additionalProperties": {
        "$ref": "#/definitions/projectTargets"
      }
    },
    "etags": {
      "type": "object",
      "description": "Stores resource ETags per project to detect drift and out-of-band updates during extension deployments.",
      "additionalProperties": {
        "$ref": "#/definitions/projectEtags"
      }
    },
    "dataconnectEmulatorConfig": {
      "type": "object",
      "description": "Deprecated configuration for the Firebase Data Connect emulator.",
      "properties": {
        "postgres": {
          "type": "object",
          "description": "PostgreSQL database configuration for the emulator.",
          "properties": {
            "localConnectionString": {
              "type": "string",
              "description": "Connection string to a local PostgreSQL instance."
            }
          },
          "additionalProperties": false
        }
      },
      "additionalProperties": false
    }
  }
}