/**
 * Company Request Mapper
 *
 * Transforms Company domain objects to API request schemas (CreateCompanyRequest, UpdateCompanyRequest).
 * This mapper handles the domain → request schema transformation for company operations.
 *
 * @layer Infrastructure - API Client
 * @module Company Request Mapper
 */

import {
  type CreateCompanyRequest,
  type UpdateCompanyRequest,
  createCompanyRequestSchema,
  updateCompanyRequestSchema,
} from '@archer/api-interface';
import { Company, CompanyType } from '@domain/entities/Company';

/**
 * Maps CompanyType enum values between dashboard domain and API interface
 *
 * Dashboard: INDIVIDUAL, CORPORATE
 * API: platform_admin, client
 */
const mapCompanyTypeToApi = (type: CompanyType): 'platform_admin' | 'client' => {
  switch (type) {
    case CompanyType.INDIVIDUAL:
      return 'client';
    case CompanyType.CORPORATE:
      return 'platform_admin';
    default:
      return 'client';
  }
};

/**
 * Company Request Mapper
 *
 * Handles transformation from Company domain objects to API request schemas.
 * Uses Zod validation to ensure request data matches API contract.
 */
export class CompanyRequestMapper {
  /**
   * Transforms Company domain object to CreateCompanyRequest schema
   *
   * @param company - Company domain entity
   * @returns Validated CreateCompanyRequest schema
   * @throws ZodError if validation fails
   *
   * @example
   * ```typescript
   * const company = Company.create({
   *   id: '123',
   *   name: 'Acme Corp',
   *   type: CompanyType.CORPORATE
   * });
   *
   * const request = CompanyRequestMapper.toCreateRequest(company);
   * // { name: 'Acme Corp', type: 'platform_admin' }
   * ```
   */
  static toCreateRequest(company: Company): CreateCompanyRequest {
    const requestData = {
      name: company.name,
      type: mapCompanyTypeToApi(company.type),
    };

    // Validate with Zod schema
    return createCompanyRequestSchema.parse(requestData);
  }

  /**
   * Transforms partial Company domain object to UpdateCompanyRequest schema
   *
   * @param updates - Partial Company domain data
   * @returns Validated UpdateCompanyRequest schema
   * @throws ZodError if validation fails
   *
   * @example
   * ```typescript
   * const updates = { name: 'New Company Name' };
   * const request = CompanyRequestMapper.toUpdateRequest(updates);
   * // { name: 'New Company Name' }
   * ```
   *
   * @note
   * Company type is immutable and cannot be updated.
   * The API only allows updating the company name.
   */
  static toUpdateRequest(updates: Partial<Pick<Company, 'name' | 'address' | 'vatId' | 'website' | 'industry' | 'size' | 'billingEmail' | 'legalForm' | 'taxNumber' | 'registerCourt' | 'registerNumber' | 'directorName'>>): UpdateCompanyRequest {
    const requestData: UpdateCompanyRequest = {};

    if (updates.name !== undefined) requestData.name = updates.name;
    if (updates.address !== undefined) requestData.address = updates.address;
    if (updates.vatId !== undefined) requestData.vatId = updates.vatId;
    if (updates.website !== undefined) requestData.website = updates.website;
    if (updates.industry !== undefined) requestData.industry = updates.industry;
    if (updates.size !== undefined) requestData.size = updates.size;
    if (updates.billingEmail !== undefined) requestData.billingEmail = updates.billingEmail;
    if (updates.legalForm !== undefined) requestData.legalForm = updates.legalForm as UpdateCompanyRequest['legalForm'];
    if (updates.taxNumber !== undefined) requestData.taxNumber = updates.taxNumber;
    if (updates.registerCourt !== undefined) requestData.registerCourt = updates.registerCourt;
    if (updates.registerNumber !== undefined) requestData.registerNumber = updates.registerNumber;
    if (updates.directorName !== undefined) requestData.directorName = updates.directorName;

    return updateCompanyRequestSchema.parse(requestData);
  }
}