{
  "$schema": "https://json-schema.org/draft/2019-09/schema",
  "additionalProperties": false,
  "type": "object",
  "properties": {
    "description": {
      "type": "string"
    },
    "owner": {
      "type": "string",
      "description": "The owner of the feature."
    },
    "applications": {
      "description": "The applications that can enroll in experiments for this feature. Defaults to firefox-desktop if not present.",
      "type": "array",
      "items": {
        "type": "string",
        "enum": ["firefox-desktop", "firefox-desktop-background-task"]
      },
      "minItems": 1
    },
    "hasExposure": {
      "type": "boolean",
      "description": "If the feature sends an exposure event."
    },
    "exposureDescription": {
      "type": "string",
      "description": "A description of the implementation details of the exposure event, if one is sent."
    },
    "isEarlyStartup": {
      "type": "boolean",
      "description": "If the feature values should be cached in prefs for fast early startup."
    },
    "schema": {
      "type": "object",
      "description": "For features with large number of variables we instead point to a JSONSchema file instead of specifying them in the variables field",
      "properties": {
        "uri": {
          "type": "string",
          "description": "A resource:// URI that can be loaded at runtime from within Firefox.",
          "format": "uri"
        },
        "path": {
          "type": "string",
          "description": "The path to the schema file relative to the repository root"
        }
      },
      "required": ["uri", "path"]
    },
    "variables": {
      "additionalProperties": false,
      "type": "object",
      "patternProperties": {
        "[a-zA-Z0-9_]+": {
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "enum": ["json", "boolean", "int", "string"]
            },
            "fallbackPref": {
              "type": "string",
              "description": "A pref that provides the default value for a feature when none is present"
            },
            "setPref": {
              "description": "A pref that should be set to the value of this variable when enrolling in experiments.",
              "type": "object",
              "properties": {
                "branch": {
                  "type": "string",
                  "enum": ["default", "user"],
                  "description": "The branch the pref will be set on."
                },
                "pref": {
                  "type": "string",
                  "description": "The name of the pref."
                }
              },
              "required": ["branch", "pref"],
              "additionalProperties": false
            },
            "enum": {
              "description": "Validate feature value using a list of possible options (for string only values)."
            },
            "description": {
              "type": "string",
              "description": "Explain how this value is being used"
            }
          },
          "required": ["type", "description"],
          "additionalProperties": false,
          "dependentSchemas": {
            "fallbackPref": {
              "description": "setPref is mutually exclusive with fallbackPref",
              "properties": {
                "setPref": {
                  "const": null
                }
              }
            },
            "setPref": {
              "description": "fallbackPref is mutually exclusive with setPref",
              "properties": {
                "fallbackPref": {
                  "const": null
                }
              }
            }
          }
        }
      }
    }
  },
  "required": ["description", "hasExposure", "variables"],
  "if": {
    "properties": {
      "hasExposure": {
        "const": true
      }
    }
  },
  "then": {
    "required": ["exposureDescription"]
  }
}