{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://docforge.local/schema/project-v1.json",
  "title": "DocForge project descriptor",
  "type": "object",
  "required": ["schema_version", "project_id", "title", "adapter", "sources", "derived", "changesets", "graph"],
  "properties": {
    "schema_version": { "const": 1 },
    "project_id": { "type": "string", "pattern": "^[a-z0-9][a-z0-9._-]{1,127}$" },
    "title": { "type": "string", "minLength": 1 },
    "adapter": { "type": "string", "minLength": 1 },
    "sources": {
      "type": "object",
      "required": ["content_roots", "authority_files"],
      "properties": {
        "content_roots": { "$ref": "#/$defs/pathList" },
        "authority_files": { "$ref": "#/$defs/pathList" }
      },
      "additionalProperties": false
    },
    "derived": {
      "type": "object",
      "required": ["cache_root", "index"],
      "properties": {
        "cache_root": { "$ref": "#/$defs/relativePath" },
        "index": { "$ref": "#/$defs/relativePath" }
      },
      "additionalProperties": false
    },
    "changesets": {
      "type": "object",
      "required": ["root", "writers"],
      "properties": {
        "root": { "$ref": "#/$defs/relativePath" },
        "writers": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["id", "families", "operations"],
            "properties": {
              "id": { "type": "string", "pattern": "^[a-z0-9][a-z0-9._-]{1,127}$" },
              "families": { "type": "array", "minItems": 1, "uniqueItems": true, "items": { "type": "string", "minLength": 1 } },
              "operations": { "type": "array", "minItems": 1, "uniqueItems": true, "items": { "enum": ["create", "update", "move", "delete"] } }
            },
            "additionalProperties": false
          }
        }
      },
      "additionalProperties": false
    },
    "graph": {
      "type": "object",
      "required": ["allowed_relations"],
      "properties": {
        "allowed_relations": { "type": "array", "minItems": 1, "uniqueItems": true, "items": { "type": "string", "pattern": "^[a-z0-9][a-z0-9._-]{1,127}$" } }
      },
      "additionalProperties": false
    },
    "limits": { "type": "object" },
    "profiles": { "type": "array" }
  },
  "$defs": {
    "relativePath": { "type": "string", "minLength": 1, "not": { "pattern": "(^/|(^|/)\\.\\.(/|$))" } },
    "pathList": { "type": "array", "uniqueItems": true, "items": { "$ref": "#/$defs/relativePath" } }
  },
  "additionalProperties": false
}