{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://yovision.local/contracts/source-config/v1/source-config.schema.json",
  "title": "YoVision Sense to Brain source configuration snapshot v1",
  "description": "Credential-free media source, profile binding, and normalized rule configuration published by Sense for Brain.",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schema_version",
    "config_id",
    "revision",
    "published_at",
    "effective_at",
    "site",
    "logical_device",
    "profile",
    "media",
    "rule_set",
    "integrity"
  ],
  "properties": {
    "schema_version": {
      "const": "yovision.source-config/v1"
    },
    "config_id": {
      "$ref": "#/$defs/stable_id"
    },
    "revision": {
      "type": "integer",
      "minimum": 1
    },
    "published_at": {
      "type": "string",
      "format": "date-time"
    },
    "effective_at": {
      "type": "string",
      "format": "date-time"
    },
    "site": {
      "type": "object",
      "additionalProperties": false,
      "required": ["id"],
      "properties": {
        "id": {
          "$ref": "#/$defs/stable_id"
        }
      }
    },
    "logical_device": {
      "type": "object",
      "additionalProperties": false,
      "required": ["id"],
      "properties": {
        "id": {
          "$ref": "#/$defs/stable_id"
        }
      }
    },
    "profile": {
      "$ref": "#/$defs/profile"
    },
    "media": {
      "type": "object",
      "additionalProperties": false,
      "required": ["ref", "transport"],
      "properties": {
        "ref": {
          "type": "string",
          "pattern": "^media:[A-Za-z0-9][A-Za-z0-9._~/-]{0,254}$",
          "description": "Opaque credential-free reference resolved by the connector. URI authority, userinfo, query strings, and fragments are forbidden."
        },
        "transport": {
          "enum": ["rtsp"]
        }
      }
    },
    "rule_set": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "version",
        "state",
        "profile_binding",
        "areas",
        "directional_lines"
      ],
      "properties": {
        "version": {
          "$ref": "#/$defs/stable_id"
        },
        "state": {
          "enum": ["active", "disabled", "recalibration_required"]
        },
        "profile_binding": {
          "$ref": "#/$defs/profile_binding"
        },
        "areas": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/area_rule"
          },
          "maxItems": 1024
        },
        "directional_lines": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/directional_line_rule"
          },
          "maxItems": 1024
        }
      }
    },
    "integrity": {
      "type": "object",
      "additionalProperties": false,
      "required": ["algorithm", "value"],
      "properties": {
        "algorithm": {
          "const": "sha256"
        },
        "value": {
          "type": "string",
          "pattern": "^[a-f0-9]{64}$"
        }
      }
    },
    "extensions": {
      "type": "object",
      "description": "Optional namespaced, non-secret extension data. Consumers ignore unknown namespaces.",
      "propertyNames": {
        "pattern": "^[A-Za-z][A-Za-z0-9.-]{0,127}$"
      },
      "additionalProperties": {
        "type": "object"
      }
    }
  },
  "$defs": {
    "stable_id": {
      "type": "string",
      "minLength": 1,
      "maxLength": 128,
      "pattern": "^[A-Za-z0-9][A-Za-z0-9._~-]*$"
    },
    "positive_integer": {
      "type": "integer",
      "minimum": 1
    },
    "positive_number": {
      "type": "number",
      "exclusiveMinimum": 0
    },
    "profile": {
      "type": "object",
      "additionalProperties": false,
      "required": ["id", "width", "height", "encoding", "frame_rate"],
      "properties": {
        "id": {
          "$ref": "#/$defs/stable_id"
        },
        "width": {
          "$ref": "#/$defs/positive_integer"
        },
        "height": {
          "$ref": "#/$defs/positive_integer"
        },
        "encoding": {
          "enum": ["H264", "H265", "MJPEG"]
        },
        "frame_rate": {
          "$ref": "#/$defs/positive_number"
        }
      }
    },
    "profile_binding": {
      "type": "object",
      "additionalProperties": false,
      "required": ["profile_id", "width", "height"],
      "properties": {
        "profile_id": {
          "$ref": "#/$defs/stable_id"
        },
        "width": {
          "$ref": "#/$defs/positive_integer"
        },
        "height": {
          "$ref": "#/$defs/positive_integer"
        }
      }
    },
    "point": {
      "type": "object",
      "additionalProperties": false,
      "required": ["x", "y"],
      "properties": {
        "x": {
          "type": "number",
          "minimum": 0,
          "maximum": 1
        },
        "y": {
          "type": "number",
          "minimum": 0,
          "maximum": 1
        }
      }
    },
    "area_rule": {
      "type": "object",
      "additionalProperties": false,
      "required": ["id", "version", "kind", "enabled", "points"],
      "properties": {
        "id": {
          "$ref": "#/$defs/stable_id"
        },
        "version": {
          "$ref": "#/$defs/positive_integer"
        },
        "kind": {
          "const": "danger_area"
        },
        "enabled": {
          "type": "boolean"
        },
        "points": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/point"
          },
          "minItems": 3,
          "maxItems": 256
        }
      }
    },
    "directional_line_rule": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "id",
        "version",
        "kind",
        "enabled",
        "start",
        "end",
        "trigger_direction"
      ],
      "properties": {
        "id": {
          "$ref": "#/$defs/stable_id"
        },
        "version": {
          "$ref": "#/$defs/positive_integer"
        },
        "kind": {
          "const": "directional_line"
        },
        "enabled": {
          "type": "boolean"
        },
        "start": {
          "$ref": "#/$defs/point"
        },
        "end": {
          "$ref": "#/$defs/point"
        },
        "trigger_direction": {
          "enum": ["left_to_right", "right_to_left"]
        }
      }
    }
  }
}