{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://docforge.local/schema/projection-receipt-v1.json",
  "title": "DocForge projection renderer receipt",
  "$comment": "receipt_id is the SHA-256 of canonical JSON without receipt_id and is verified by the runtime contract validator.",
  "$defs": {
    "sha256": {
      "type": "string",
      "pattern": "^[0-9a-f]{64}$"
    },
    "renderer": {
      "type": "object",
      "required": ["renderer_id", "renderer_version"],
      "properties": {
        "renderer_id": { "type": "string", "minLength": 1 },
        "renderer_version": { "type": "string", "minLength": 1 }
      },
      "additionalProperties": false
    },
    "artifact": {
      "type": "object",
      "required": ["artifact_id", "media_type", "sha256", "bytes"],
      "properties": {
        "artifact_id": {
          "type": "string",
          "minLength": 1,
          "pattern": "^[^/]+$"
        },
        "media_type": { "type": "string", "minLength": 1 },
        "sha256": { "$ref": "#/$defs/sha256" },
        "bytes": { "type": "integer", "minimum": 0 }
      },
      "additionalProperties": false
    }
  },
  "type": "object",
  "required": [
    "schema_version",
    "contract",
    "receipt_id",
    "kind",
    "package_id",
    "plan_id",
    "renderer",
    "artifacts",
    "diagnostics",
    "timing",
    "peak_memory_bytes"
  ],
  "properties": {
    "schema_version": { "const": 1 },
    "contract": { "const": "docforge.projection-receipt" },
    "receipt_id": { "$ref": "#/$defs/sha256" },
    "kind": { "enum": ["manual", "graph"] },
    "package_id": { "$ref": "#/$defs/sha256" },
    "plan_id": { "$ref": "#/$defs/sha256" },
    "renderer": { "$ref": "#/$defs/renderer" },
    "artifacts": {
      "type": "array",
      "maxItems": 32,
      "items": { "$ref": "#/$defs/artifact" }
    },
    "diagnostics": {
      "type": "object",
      "required": ["warnings"],
      "properties": {
        "warnings": {
          "type": "array",
          "maxItems": 10000,
          "items": { "type": "string" }
        }
      },
      "additionalProperties": false
    },
    "timing": {
      "type": "object",
      "required": ["elapsed_ns"],
      "properties": {
        "elapsed_ns": { "type": "integer", "minimum": 0 }
      },
      "additionalProperties": false
    },
    "peak_memory_bytes": {
      "type": ["integer", "null"],
      "minimum": 0
    }
  },
  "additionalProperties": false
}