{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://xcaeser.github.io/croner/croner.schema.json",
  "title": "Croner configuration",
  "description": "Jobs managed by the Croner background scheduler.",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "$schema": {
      "const": "https://xcaeser.github.io/croner/croner.schema.json"
    },
    "jobs": {
      "type": "array",
      "description": "Configured jobs. IDs must be unique at runtime.",
      "items": {
        "$ref": "#/$defs/job"
      }
    }
  },
  "required": ["jobs"],
  "$defs": {
    "job": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "id": {
          "type": "string",
          "minLength": 1,
          "description": "A nonempty stable identifier unique within this config."
        },
        "schedule": {
          "type": "string",
          "minLength": 1,
          "description": "A five-field UTC cron expression."
        },
        "action": {
          "$ref": "#/$defs/action"
        },
        "overlap": {
          "type": "string",
          "enum": ["skip", "concurrent"],
          "default": "skip"
        }
      },
      "required": ["id", "schedule", "action"]
    },
    "action": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "command": {
          "$ref": "#/$defs/command"
        }
      },
      "required": ["command"]
    },
    "command": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "argv": {
          "type": "array",
          "minItems": 1,
          "items": {
            "type": "string",
            "minLength": 1
          }
        },
        "cwd": {
          "type": "string",
          "minLength": 1,
          "description": "Working directory; relative paths use the config directory."
        },
        "env": {
          "type": "object",
          "propertyNames": {
            "pattern": "^[A-Za-z_][A-Za-z0-9_]*$"
          },
          "additionalProperties": {
            "type": "string"
          }
        }
      },
      "required": ["argv"]
    }
  }
}