/**
 * Site Builder API Service
 * Uses fetchAPI pattern (not axios) - handles authentication automatically
 */
import { fetchAPI } from './api';
import type {
  SiteBlueprint,
  PageBlueprint,
  SiteStructure,
  BuilderFormData,
  SiteBuilderMetadata,
} from '../types/siteBuilder';

export interface CreateBlueprintPayload {
  name: string;
  description?: string;
  site_id: number;
  sector_id: number;
  hosting_type: BuilderFormData['hostingType'];
  config_json: Record<string, unknown>;
}

export interface GenerateStructurePayload {
  business_brief: string;
  objectives: string[];
  style: BuilderFormData['style'];
  metadata?: Record<string, unknown>;
}

/**
 * Site Builder API functions
 */
export const siteBuilderApi = {
  /**
   * List all site blueprints
   */
  async listBlueprints(siteId?: number): Promise<SiteBlueprint[]> {
    const params = siteId ? `?site=${siteId}` : '';
    const response = await fetchAPI(`/v1/site-builder/blueprints/${params}`);
    // Handle paginated response
    if (response?.results) {
      return response.results as SiteBlueprint[];
    }
    // Handle direct array response
    return Array.isArray(response) ? response : [];
  },

  /**
   * Get a single blueprint by ID
   */
  async getBlueprint(id: number): Promise<SiteBlueprint> {
    return fetchAPI(`/v1/site-builder/blueprints/${id}/`);
  },

  /**
   * Create a new site blueprint
   */
  async createBlueprint(payload: CreateBlueprintPayload): Promise<SiteBlueprint> {
    return fetchAPI('/v1/site-builder/blueprints/', {
      method: 'POST',
      body: JSON.stringify(payload),
    });
  },

  /**
   * Generate site structure for a blueprint
   */
  async generateStructure(
    blueprintId: number,
    payload: GenerateStructurePayload,
  ): Promise<{ task_id?: string; success?: boolean; structure?: SiteStructure }> {
    return fetchAPI(`/v1/site-builder/blueprints/${blueprintId}/generate_structure/`, {
      method: 'POST',
      body: JSON.stringify(payload),
    });
  },

  /**
   * List pages for a blueprint
   */
  async listPages(blueprintId: number): Promise<PageBlueprint[]> {
    const response = await fetchAPI(`/v1/site-builder/pages/?site_blueprint=${blueprintId}`);
    // Handle paginated response
    if (response?.results) {
      return response.results as PageBlueprint[];
    }
    // Handle direct array response
    return Array.isArray(response) ? response : [];
  },

  /**
   * Generate all pages for a blueprint
   */
  async generateAllPages(
    blueprintId: number,
    options?: { pageIds?: number[]; force?: boolean },
  ): Promise<{ success: boolean; pages_queued: number; task_ids: number[]; celery_task_id?: string }> {
    const response = await fetchAPI(`/v1/site-builder/blueprints/${blueprintId}/generate_all_pages/`, {
      method: 'POST',
      body: JSON.stringify({
        page_ids: options?.pageIds,
        force: options?.force || false,
      }),
    });
    // Handle unified response format
    return response?.data || response;
  },

  /**
   * Create tasks for pages
   */
  async createTasksForPages(
    blueprintId: number,
    pageIds?: number[],
  ): Promise<{ tasks: unknown[]; count: number }> {
    const response = await fetchAPI(`/v1/site-builder/blueprints/${blueprintId}/create_tasks/`, {
      method: 'POST',
      body: JSON.stringify({
        page_ids: pageIds,
      }),
    });
    // Handle unified response format
    return response?.data || response;
  },

  /**
   * Load dropdown metadata for wizard fields
   */
  async getMetadata(): Promise<SiteBuilderMetadata> {
    return fetchAPI('/v1/site-builder/metadata/');
  },
};