/** 商品详情页文案模板（Admin 一键套用） */
export const TEMPLATE_MAX_DETAIL_IMAGES = 30;

export type ProductDetailTemplateContent = {
  storyTitle?: string;
  storyText?: string;
  features?: Array<{ icon: string; title: string; desc: string }>;
  /** 模板内置详情长图 URL 列表 */
  detailImageUrls?: string[];
  /** 建议详情长图张数（与 detailImageUrls 数量同步，供展示） */
  suggestedDetailImageCount?: number;
};

export type ProductDetailTemplate = {
  id: string;
  code: string;
  label: string;
  description: string;
  aromaType?: string;
  content: ProductDetailTemplateContent;
};

/** API 返回的详情模板 DTO（与 shared-types ProductDetailTemplateDto 对齐） */
export type ProductDetailTemplateDto = {
  id: string;
  code: string;
  name: string;
  description?: string | null;
  aromaType?: string | null;
  storyTitle?: string | null;
  storyText?: string | null;
  features?: Array<{ icon: string; title: string; desc: string }>;
  detailImageUrls?: string[];
  suggestedDetailImageCount: number;
  sortOrder: number;
  status: 'ACTIVE' | 'DISABLED';
  createdAt: string;
  updatedAt: string;
};

export function mapDtoToProductDetailTemplate(dto: ProductDetailTemplateDto): ProductDetailTemplate {
  const detailImageUrls = (dto.detailImageUrls ?? []).filter(Boolean);
  return {
    id: dto.code,
    code: dto.code,
    label: dto.name,
    description: dto.description ?? '',
    aromaType: dto.aromaType ?? undefined,
    content: {
      storyTitle: dto.storyTitle ?? undefined,
      storyText: dto.storyText ?? undefined,
      features: dto.features ?? [],
      detailImageUrls,
      suggestedDetailImageCount: detailImageUrls.length || dto.suggestedDetailImageCount,
    },
  };
}

export function getProductDetailTemplate(
  templates: ProductDetailTemplate[],
  code: string,
) {
  return templates.find((t) => t.code === code || t.id === code);
}