import { http } from './index';

// ============= 类型定义 =============

/** 套餐信息 */
export interface CourseCollection {
  id: number;
  name: string;
  description?: string;
  packageCount: number;
  gradeLevels?: string[];
  status: string;
  startDate?: string;
  endDate?: string;
}

/** 课程包中的课程项（用于提取课程配置） */
export interface CoursePackageCourseItem {
  id?: number;
  name?: string;
  lessonType?: string;
}

/** 课程包信息 */
export interface CoursePackage {
  id: number;
  name: string;
  description?: string;
  coverImagePath?: string;
  pictureBookName?: string;
  gradeTags: string[];
  domainTags?: string[]; // 不再展示，由课程配置替代
  courses?: CoursePackageCourseItem[]; // 用于课程配置展示
  themeId?: number;
  themeName?: string;
  durationMinutes?: number;
  usageCount?: number;
  avgRating?: number;
  sortOrder?: number;
}

/** 筛选元数据 - 年级选项 */
export interface GradeOption {
  label: string;
  count: number;
}

/** 筛选元数据 - 课程配置选项 */
export interface LessonTypeOption {
  lessonType: string;
  name: string;
  count: number;
}

/** 筛选元数据响应 */
export interface FilterMetaResponse {
  grades: GradeOption[];
  lessonTypes: LessonTypeOption[];
}

// ============= API 接口 =============

/**
 * 获取租户的课程套餐列表
 */
export function getCollections(): Promise<CourseCollection[]> {
  return http.get<CourseCollection[]>('/v1/school/packages');
}

/**
 * 获取套餐下的课程包列表（支持筛选）
 */
export function getPackages(
  collectionId: number,
  params?: {
    grade?: string;
    lessonType?: string;
    keyword?: string;
  }
): Promise<CoursePackage[]> {
  return http.get<CoursePackage[]>(`/v1/school/packages/${collectionId}/packages`, {
    params,
  });
}

/**
 * 获取套餐的筛选元数据
 */
export function getFilterMeta(collectionId: number): Promise<FilterMetaResponse> {
  return http.get<FilterMetaResponse>(`/v1/school/packages/${collectionId}/filter-meta`);
}