{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://github.com/alphazede/bearing-lite/schemas/journey.schema.json",
  "title": "Bearing Lite journey.json",
  "description": "Append-only decisions and authority-event history plus the generation-bound checkout lease for a Bearing Lifecycle. The full mutable file digest is not the stable SEIT execution baseline. Extra lifecycle metadata is allowed at the document root. Lease identity fields stay closed. lineup_selection is not a live field; profile_selection is required.",
  "type": "object",
  "additionalProperties": true,
  "required": ["schema_version", "journey", "checkout_lease", "decisions", "open_decisions", "planning_receipts", "profile_selection"],
  "properties": {
    "schema_version": {"type": "string", "minLength": 1},
    "journey": {
      "type": "object",
      "additionalProperties": true,
      "required": ["id", "title", "status", "planning_repository"],
      "properties": {
        "id": {"type": "string", "minLength": 1},
        "title": {"type": "string", "minLength": 1},
        "status": {"type": "string", "enum": ["planning", "implementation", "complete", "cancelled"]},
        "planning_repository": {"type": "string", "minLength": 1}
      }
    },
    "checkout_lease": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "journey",
        "controller",
        "repository",
        "checkout",
        "branch",
        "candidate_revision",
        "acquired_at",
        "generation",
        "state"
      ],
      "properties": {
        "journey": {"type": "string", "minLength": 1},
        "controller": {"type": "string", "minLength": 1},
        "repository": {"type": "string", "minLength": 1},
        "checkout": {"type": "string", "minLength": 1},
        "branch": {"type": "string", "minLength": 1},
        "candidate_revision": {"type": "string", "minLength": 1},
        "acquired_at": {"type": "string", "minLength": 1},
        "generation": {"type": "integer", "minimum": 1},
        "state": {"enum": ["active", "released"]},
        "released_at": {"type": "string", "format": "date-time"},
        "release_reason": {"type": "string", "minLength": 1}
      },
      "if": {"properties": {"state": {"const": "released"}}},
      "then": {"required": ["released_at", "release_reason"]}
    },
    "history": {
      "type": "object",
      "additionalProperties": true,
      "description": "Optional append-only Journey history wrapper",
      "properties": {
        "decisions": {"type": "array", "items": {"type": "object", "additionalProperties": true}},
        "authority_events": {"type": "array", "items": {"type": "object", "additionalProperties": true}}
      }
    },
    "decisions": {
      "type": "array",
      "description": "Append-only confirmed owner decisions",
      "items": {
        "type": "object",
        "additionalProperties": true,
        "allOf": [
          {
            "if": {"required": ["record_type"], "properties": {"record_type": {"const": "owner_stop"}}},
            "then": {"$ref": "#/$defs/ownerStop"}
          }
        ]
      }
    },
    "authority_events": {
      "type": "array",
      "description": "Append-only authority grant, amend, revoke, or supersede events",
      "items": {"type": "object", "additionalProperties": true}
    },
    "open_decisions": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true,
        "allOf": [
          {
            "if": {"required": ["record_type"], "properties": {"record_type": {"const": "owner_stop"}}},
            "then": {"$ref": "#/$defs/ownerStop"}
          }
        ]
      }
    },
    "planning_receipts": {"type": "array", "items": {"type": "object", "additionalProperties": true}},
    "profile_selection": {"type": "object", "additionalProperties": true},
    "owner_wait_tracking": {"type": "boolean", "description": "Explicit coverage marker; absence is unavailable, never zero owner wait."},
    "owner_blocked_intervals": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": ["decision_ids", "started_at", "ended_at"],
        "properties": {
          "decision_ids": {"type": "array", "minItems": 1, "uniqueItems": true, "items": {"type": "string", "minLength": 1}},
          "started_at": {"type": "string", "format": "date-time", "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d{3})?Z$"},
          "ended_at": {"type": ["string", "null"], "format": "date-time", "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d{3})?Z$"}
        }
      }
    }
  },
  "$defs": {
    "ownerStop": {
      "type": "object",
      "additionalProperties": true,
      "required": [
        "record_type",
        "id",
        "class",
        "question",
        "why_owner",
        "evidence_ref",
        "affected_slices",
        "blocking",
        "status",
        "created_at",
        "asked_at",
        "answered_at",
        "cancelled_at",
        "round_trip_id"
      ],
      "properties": {
        "record_type": {"const": "owner_stop"},
        "id": {"type": "string", "minLength": 1},
        "class": {"enum": ["A", "B", "C", "D", "E", "F"]},
        "question": {"type": "string", "minLength": 1},
        "why_owner": {"type": "string", "minLength": 1},
        "evidence_ref": {"type": "string", "minLength": 1},
        "affected_slices": {"type": "array", "uniqueItems": true, "items": {"type": "string", "minLength": 1}},
        "blocking": {"type": "boolean"},
        "status": {"enum": ["queued", "asked", "answered", "cancelled"]},
        "created_at": {"type": "string", "format": "date-time", "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d{3})?Z$"},
        "asked_at": {"type": ["string", "null"], "format": "date-time", "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d{3})?Z$"},
        "answered_at": {"type": ["string", "null"], "format": "date-time", "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d{3})?Z$"},
        "cancelled_at": {"type": ["string", "null"], "format": "date-time", "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d{3})?Z$"},
        "round_trip_id": {"type": ["string", "null"], "minLength": 1},
        "answer_ref": {"type": "string", "minLength": 1}
      },
      "allOf": [
        {
          "if": {"properties": {"status": {"const": "queued"}}},
          "then": {
            "properties": {
              "asked_at": {"type": "null"},
              "answered_at": {"type": "null"},
              "cancelled_at": {"type": "null"},
              "round_trip_id": {"type": "null"}
            }
          }
        },
        {
          "if": {"properties": {"status": {"const": "asked"}}},
          "then": {
            "properties": {
              "asked_at": {"type": "string"},
              "round_trip_id": {"type": "string", "minLength": 1},
              "answered_at": {"type": "null"},
              "cancelled_at": {"type": "null"}
            }
          }
        },
        {
          "if": {"properties": {"status": {"const": "answered"}}},
          "then": {
            "properties": {
              "asked_at": {"type": "string"},
              "answered_at": {"type": "string"},
              "cancelled_at": {"type": "null"},
              "round_trip_id": {"type": "string", "minLength": 1}
            },
            "required": ["answer_ref"]
          }
        },
        {
          "if": {"properties": {"status": {"const": "cancelled"}}},
          "then": {"properties": {"cancelled_at": {"type": "string"}, "answered_at": {"type": "null"}}}
        }
      ]
    }
  },
  "allOf": [
    {
      "if": {"required": ["owner_wait_tracking"], "properties": {"owner_wait_tracking": {"const": true}}},
      "then": {"required": ["owner_blocked_intervals"]}
    }
  ]
}