{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:corpus-reasoning-bid-state:v1",
  "title": "CorpusReasoningBidState v1",
  "description": "Requester-owned read model for Corpus procurement candidates. This projection is operator-visible state, not an authority or provider wire artifact.",
  "type": "object",
  "additionalProperties": false,
  "x-dia-workflow": "project",
  "x-dia-status": "draft",
  "x-dia-basis": [
    "doc/project/40-proposals/069-corpus.md"
  ],
  "required": [
    "schema/v",
    "query/id",
    "owner/node-id",
    "updated-at",
    "candidates"
  ],
  "properties": {
    "schema/v": { "const": 1 },
    "query/id": {
      "type": "string",
      "pattern": "^query:[A-Za-z0-9][A-Za-z0-9:-]*$"
    },
    "owner/node-id": {
      "type": "string",
      "pattern": "^node:did:key:z[1-9A-HJ-NP-Za-km-z]+$"
    },
    "updated-at": {
      "type": "string",
      "format": "date-time"
    },
    "candidates": {
      "type": "array",
      "description": "May be empty when discovery or AD dispatch fails before any provider candidate is selected.",
      "maxItems": 128,
      "items": { "$ref": "#/$defs/candidate_state" }
    },
    "selected/bid-id": {
      "type": "string",
      "pattern": "^bid:[A-Za-z0-9][A-Za-z0-9:-]*$"
    },
    "extensions": { "$ref": "#/$defs/extensions" }
  },
  "$defs": {
    "candidate_state": {
      "type": "object",
      "additionalProperties": false,
      "required": ["node/id", "state", "updated-at", "delivery/attempt-id"],
      "properties": {
        "node/id": {
          "type": "string",
          "pattern": "^node:did:key:z[1-9A-HJ-NP-Za-km-z]+$"
        },
        "state": {
          "type": "string",
          "enum": [
            "candidate-selected",
            "query-sent",
            "bid-received",
            "declined",
            "countered",
            "timed-out",
            "delivery-failed",
            "unreachable",
            "retry-scheduled",
            "selected",
            "rejected",
            "settled"
          ]
        },
        "received-at": {
          "type": ["string", "null"],
          "format": "date-time"
        },
        "updated-at": {
          "type": "string",
          "format": "date-time"
        },
        "reason": {
          "type": "string",
          "minLength": 1,
          "maxLength": 1024
        },
        "diagnostic/code": {
          "type": "string",
          "minLength": 1,
          "maxLength": 128
        },
        "delivery/attempt-id": {
          "type": "string",
          "minLength": 1,
          "maxLength": 256
        },
        "bid/id": {
          "type": "string",
          "pattern": "^bid:[A-Za-z0-9][A-Za-z0-9:-]*$"
        },
        "bid/digest": { "$ref": "#/$defs/sha256_digest" }
      }
    },
    "sha256_digest": {
      "type": "string",
      "pattern": "^sha256:[A-Za-z0-9_-]{16,128}$"
    },
    "extensions": {
      "type": "object",
      "additionalProperties": true
    }
  }
}