{
  "$schema":     "http://json-schema.org/draft-04/schema#",
  "title":       "Environment Enumeration",
  "description": "An enumeration of environments and their settings",
  "type":        "object",
  "properties": {
    "search_paths": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "minItems": 1,
      "description": "An array of the paths where the master looked for environments."
    },
    "environments": {
      "type": "object",
      "patternProperties": {
        "^[a-z0-9_]+$": {
          "type": "object",
          "properties": {
            "settings" : {
              "type": "object",
              "properties": {
                "manifest": { "type": "string" },
                "modulepath": {
                  "type": "array",
                  "items": { "type": "string" }
                },
                "config_version": { "type": "string" },
                "environment_timeout": { "type": ["integer", "string"] }
              },
              "required": ["modulepath", "manifest", "environment_timeout", "config_version"],
              "oneOf": [
                {
                  "title": "numeric timeout",
                  "properties": {
                    "environment_timeout": {
                      "type": "integer",
                      "minimum": 0
                    }
                  }
                },
                {
                  "title": "unlimited timeout",
                  "properties": {
                    "environment_timeout": {
                      "type": "string",
                      "enum": ["unlimited"]
                    }
                  }
                }
              ]
            }
          },
          "required": ["settings"]
        }
      }
    }
  },
  "required": ["search_paths", "environments"]
}