/*
 * Copyright 2025 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import {SchemaMatcher, ValidationResult} from './schema_matcher';

export class BasicSchemaMatcher extends SchemaMatcher {
  constructor(
    public propertyPath: string,
    public propertyValue?: any,
  ) {
    super();
  }

  validate(schema: any): ValidationResult {
    if (!schema) {
      const result: ValidationResult = {
        success: false,
        error: 'Schema is undefined.',
      };
      return result;
    }

    const pathParts = this.propertyPath.split('.');
    let actualValue = schema;
    for (const part of pathParts) {
      if (actualValue && typeof actualValue === 'object') {
        actualValue = actualValue[part];
      } else {
        actualValue = undefined;
        break;
      }
    }

    if (actualValue === undefined) {
      const error = `Failed to find property '${this.propertyPath}'.`;
      return {success: false, error};
    }

    if (this.propertyValue !== undefined) {
      if (JSON.stringify(actualValue) !== JSON.stringify(this.propertyValue)) {
        const error = `Property '${this.propertyPath}' has value '${JSON.stringify(
          actualValue,
        )}', but expected '${JSON.stringify(this.propertyValue)}'.`;
        return {success: false, error};
      }
    }

    return {success: true};
  }
}
