{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://law.arxo.io/schema/calendar-dataset.schema.json",
  "title": "Arxo calendar dataset 0.1",
  "description": "Immutable deterministic calendar snapshot used by Arxo Core business-time functions.",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "schemaVersion": {
      "const": "law.calendar/0.1"
    },
    "id": {
      "$ref": "#/$defs/StableId"
    },
    "timezone": {
      "type": "string",
      "minLength": 1
    },
    "timezoneDbSnapshot": {
      "type": "string",
      "minLength": 1
    },
    "valid": {
      "$ref": "#/$defs/DateRange"
    },
    "weeklySchedule": {
      "type": "array",
      "minItems": 7,
      "maxItems": 7,
      "uniqueItems": true,
      "items": {
        "$ref": "#/$defs/DaySchedule"
      }
    },
    "overrides": {
      "type": "array",
      "default": [],
      "uniqueItems": true,
      "items": {
        "$ref": "#/$defs/DateOverride"
      }
    },
    "sourceArtifacts": {
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "items": {
        "$ref": "#/$defs/StableId"
      }
    },
    "metadata": {
      "type": "object",
      "additionalProperties": true
    }
  },
  "required": [
    "schemaVersion",
    "id",
    "timezone",
    "timezoneDbSnapshot",
    "valid",
    "weeklySchedule",
    "sourceArtifacts"
  ],
  "$defs": {
    "StableId": {
      "type": "string",
      "minLength": 1
    },
    "DateString": {
      "type": "string",
      "format": "date",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$"
    },
    "LocalTimeStart": {
      "type": "string",
      "pattern": "^(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?$"
    },
    "LocalTimeEnd": {
      "type": "string",
      "pattern": "^(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?|24:00:00)$"
    },
    "DateRange": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "start": {
          "$ref": "#/$defs/DateString"
        },
        "endExclusive": {
          "$ref": "#/$defs/DateString"
        }
      },
      "required": [
        "start",
        "endExclusive"
      ]
    },
    "WorkingInterval": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "start": {
          "$ref": "#/$defs/LocalTimeStart"
        },
        "end": {
          "$ref": "#/$defs/LocalTimeEnd"
        }
      },
      "required": [
        "start",
        "end"
      ]
    },
    "DaySchedule": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "day": {
          "enum": [
            "monday",
            "tuesday",
            "wednesday",
            "thursday",
            "friday",
            "saturday",
            "sunday"
          ]
        },
        "working": {
          "type": "boolean"
        },
        "intervals": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/WorkingInterval"
          }
        }
      },
      "required": [
        "day",
        "working",
        "intervals"
      ],
      "allOf": [
        {
          "if": {
            "properties": {
              "working": {
                "const": true
              }
            },
            "required": [
              "working"
            ]
          },
          "then": {
            "properties": {
              "intervals": {
                "minItems": 1
              }
            }
          }
        },
        {
          "if": {
            "properties": {
              "working": {
                "const": false
              }
            },
            "required": [
              "working"
            ]
          },
          "then": {
            "properties": {
              "intervals": {
                "maxItems": 0
              }
            }
          }
        }
      ]
    },
    "Label": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "language": {
          "type": "string",
          "pattern": "^[A-Za-z]{2,8}(?:-[A-Za-z0-9]{1,8})*$"
        },
        "text": {
          "type": "string"
        }
      },
      "required": [
        "language",
        "text"
      ]
    },
    "DateOverride": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "date": {
          "$ref": "#/$defs/DateString"
        },
        "working": {
          "type": "boolean"
        },
        "intervals": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/WorkingInterval"
          }
        },
        "labels": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/Label"
          }
        },
        "reason": {
          "type": "string"
        },
        "sourceFragments": {
          "type": "array",
          "uniqueItems": true,
          "items": {
            "$ref": "#/$defs/StableId"
          }
        }
      },
      "required": [
        "date",
        "working",
        "intervals"
      ],
      "allOf": [
        {
          "if": {
            "properties": {
              "working": {
                "const": true
              }
            },
            "required": [
              "working"
            ]
          },
          "then": {
            "properties": {
              "intervals": {
                "minItems": 1
              }
            }
          }
        },
        {
          "if": {
            "properties": {
              "working": {
                "const": false
              }
            },
            "required": [
              "working"
            ]
          },
          "then": {
            "properties": {
              "intervals": {
                "maxItems": 0
              }
            }
          }
        }
      ]
    }
  }
}