{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://othmaneblial.github.io/pdf-editor-offline/trust-lab/schemas/v1/experimental-content-edit.schema.json",
  "title": "PDF Editor Offline experimental content edit evidence",
  "type": "object",
  "additionalProperties": false,
  "required": ["schema", "schema_version", "content_included", "maturity", "native_in_place_edit", "implementation", "target_page", "supported_operation", "unsupported_operations", "thresholds", "status", "audit_sha256"],
  "properties": {
    "schema": {"const": "pdf-editor-offline.experimental-content-edit"},
    "schema_version": {"const": "1.0.0"},
    "content_included": {"const": false},
    "maturity": {"const": "experimental"},
    "native_in_place_edit": {"const": false},
    "implementation": {"const": "redaction_plus_new_content_stream"},
    "target_page": {"type": "integer", "minimum": 1},
    "supported_operation": {"const": "single_horizontal_base14_text_replacement"},
    "unsupported_operations": {"type": "array", "minItems": 1, "uniqueItems": true, "items": {"type": "string", "minLength": 1}},
    "thresholds": {
      "type": "object",
      "additionalProperties": false,
      "required": ["maximum_matches", "maximum_replacement_width_ratio", "maximum_target_render_change_ratio", "maximum_unchanged_page_render_ratio"],
      "properties": {
        "maximum_matches": {"const": 1},
        "maximum_replacement_width_ratio": {"const": 1.0},
        "maximum_target_render_change_ratio": {"const": 0.08},
        "maximum_unchanged_page_render_ratio": {"const": 0.0001}
      }
    },
    "status": {"enum": ["eligible", "passed", "rejected"]},
    "checks": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": ["id", "status", "reason"],
        "properties": {
          "id": {"type": "string", "minLength": 1},
          "status": {"enum": ["passed", "failed"]},
          "reason": {"type": ["string", "null"]}
        }
      }
    },
    "match_count": {"type": "integer", "minimum": 0},
    "font": {"type": "object", "additionalProperties": {"type": "boolean"}},
    "geometry": {"type": "object", "additionalProperties": {"type": ["number", "null"]}},
    "document_structures": {"type": "object", "additionalProperties": {"type": "integer", "minimum": 0}},
    "rejection_reasons": {"type": "array", "items": {"type": "string", "minLength": 1}},
    "runtime_reason": {"type": "string"},
    "fidelity": {
      "type": "object",
      "additionalProperties": false,
      "required": ["passed", "checks", "changed_render_pages", "changed_text_pages", "target_render_change_ratio", "old_match_count_after", "replacement_match_count_after"],
      "properties": {
        "passed": {"type": "boolean"},
        "checks": {"type": "object", "minProperties": 1, "additionalProperties": {"type": "boolean"}},
        "changed_render_pages": {"type": "array", "items": {"type": "integer", "minimum": 1}},
        "changed_text_pages": {"type": "array", "items": {"type": "integer", "minimum": 1}},
        "target_render_change_ratio": {"type": ["number", "null"], "minimum": 0, "maximum": 1},
        "old_match_count_after": {"type": "integer", "minimum": 0},
        "replacement_match_count_after": {"type": "integer", "minimum": 0}
      }
    },
    "files": {
      "type": "object",
      "additionalProperties": false,
      "required": ["before_sha256", "after_sha256"],
      "properties": {
        "before_sha256": {"type": "string", "pattern": "^[a-f0-9]{64}$"},
        "after_sha256": {"type": "string", "pattern": "^[a-f0-9]{64}$"}
      }
    },
    "change_review_audit_sha256": {"type": "string", "pattern": "^[a-f0-9]{64}$"},
    "audit_sha256": {"type": "string", "pattern": "^[a-f0-9]{64}$"}
  }
}