{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://wanxiang.ai/contracts/play-loop/match3-board-projection.schema.json",
  "title": "Match3BoardProjectionV1",
  "description": "Match3BoardProjection/1。只读匿名棋格投影；不包含颜色名、DOM、源码或游戏私有状态。",
  "type": "object",
  "required": [
    "schemaVersion", "sourceFrameRef", "sourceFrameHash", "targetSetRef", "targetSetHash", "latticeId", "dimensions",
    "interactionProfileId", "interactionRegistryVersion", "interactionBindingHash",
    "classifier", "cells", "projectionStatus", "projectionHash"
  ],
  "properties": {
    "schemaVersion": { "const": "Match3BoardProjection/1" },
    "sourceFrameRef": { "type": "string", "minLength": 1 },
    "sourceFrameHash": { "$ref": "#/$defs/sha256" },
    "targetSetRef": { "type": "string", "minLength": 1 },
    "targetSetHash": { "$ref": "#/$defs/sha256" },
    "latticeId": { "type": "string", "pattern": "^l[0-9]{2}$" },
    "dimensions": { "$ref": "#/$defs/dimensions" },
    "interactionProfileId": { "const": "match3.orthogonal-swap-v1" },
    "interactionRegistryVersion": { "enum": ["2026-07-15.v1", "2026-07-15.v2"] },
    "interactionBindingHash": { "$ref": "#/$defs/sha256" },
    "classifier": { "$ref": "#/$defs/versionedComponent" },
    "cells": {
      "type": "array",
      "minItems": 9,
      "maxItems": 144,
      "items": { "$ref": "#/$defs/visualCellClass" }
    },
    "projectionStatus": { "enum": ["resolved", "indeterminate"] },
    "projectionHash": { "$ref": "#/$defs/sha256" }
  },
  "additionalProperties": false,
  "allOf": [
    {
      "if": {
        "properties": { "interactionRegistryVersion": { "const": "2026-07-15.v2" } },
        "required": ["interactionRegistryVersion"]
      },
      "then": {
        "properties": {
          "classifier": {
            "type": "object",
            "required": ["id", "version", "configHash"],
            "properties": {
              "id": { "const": "deterministic-lab-cell-cluster" },
              "version": { "const": "1.1.0" },
              "configHash": { "$ref": "#/$defs/sha256" }
            },
            "additionalProperties": false
          }
        }
      }
    }
  ],
  "$defs": {
    "sha256": { "type": "string", "pattern": "^[0-9a-f]{64}$" },
    "dimensions": {
      "type": "object",
      "required": ["rows", "columns"],
      "properties": {
        "rows": { "type": "integer", "minimum": 3, "maximum": 12 },
        "columns": { "type": "integer", "minimum": 3, "maximum": 12 }
      },
      "additionalProperties": false
    },
    "cell": {
      "type": "object",
      "required": ["row", "column"],
      "properties": {
        "row": { "type": "integer", "minimum": 1, "maximum": 12 },
        "column": { "type": "integer", "minimum": 1, "maximum": 12 }
      },
      "additionalProperties": false
    },
    "versionedComponent": {
      "type": "object",
      "required": ["id", "version", "configHash"],
      "properties": {
        "id": { "type": "string", "minLength": 1 },
        "version": { "type": "string", "minLength": 1 },
        "configHash": { "$ref": "#/$defs/sha256" }
      },
      "additionalProperties": false
    },
    "alternative": {
      "type": "object",
      "required": ["classId", "confidencePermille"],
      "properties": {
        "classId": { "type": "string", "pattern": "^vc[0-9]{2,3}$" },
        "confidencePermille": { "type": "integer", "minimum": 0, "maximum": 1000 }
      },
      "additionalProperties": false
    },
    "visualCellClass": {
      "type": "object",
      "required": [
        "cell", "cropHash", "state", "classId", "confidencePermille", "alternatives"
      ],
      "properties": {
        "cell": { "$ref": "#/$defs/cell" },
        "cropHash": { "$ref": "#/$defs/sha256" },
        "state": { "enum": ["classified", "ambiguous", "unreadable"] },
        "classId": {
          "anyOf": [
            { "type": "string", "pattern": "^vc[0-9]{2,3}$" },
            { "type": "null" }
          ]
        },
        "confidencePermille": { "type": "integer", "minimum": 0, "maximum": 1000 },
        "alternatives": {
          "type": "array",
          "maxItems": 12,
          "items": { "$ref": "#/$defs/alternative" }
        }
      },
      "additionalProperties": false,
      "allOf": [
        {
          "if": { "properties": { "state": { "const": "classified" } }, "required": ["state"] },
          "then": {
            "properties": {
              "classId": { "type": "string", "pattern": "^vc[0-9]{2,3}$" },
              "alternatives": { "maxItems": 0 }
            }
          }
        },
        {
          "if": { "properties": { "state": { "const": "ambiguous" } }, "required": ["state"] },
          "then": {
            "properties": {
              "classId": { "type": "null" },
              "alternatives": { "minItems": 1 }
            }
          }
        },
        {
          "if": { "properties": { "state": { "const": "unreadable" } }, "required": ["state"] },
          "then": {
            "properties": {
              "classId": { "type": "null" },
              "confidencePermille": { "const": 0 },
              "alternatives": { "maxItems": 0 }
            }
          }
        }
      ]
    }
  }
}