import { apiClient } from './client'
import type { ApiResponse } from './types'
import {
  mergeListingPublishOptions,
  type ListingPublishOptions,
} from './listingOptions'

export interface HomeBannerSlide {
  eyebrow: string
  title: string
  badge: string
  pill: string
  tone: string
  image_url?: string
}

export interface MobileHomeConfig {
  announcements: string[]
  banners: HomeBannerSlide[]
  publish_options: ListingPublishOptions
}

export const defaultHomeAnnouncements = [
  '平台担保交易，拒绝私下转账/共享验证码，交接全程留痕。',
  '优先推荐同地区账号，减少异地登录保护触发。',
  '下单前请核对哈夫币、保险、体力负重和截图信息。',
]

export const defaultHomeBanners: HomeBannerSlide[] = [
  {
    eyebrow: '三角洲行动账号专区',
    title: '高哈夫币 · 安全交接 · 随租随玩',
    badge: 'HOT',
    pill: '新人领券最高减 20 元',
    tone: 'blue',
    image_url: '',
  },
  {
    eyebrow: '平台担保交易',
    title: '交接全程留痕，拒绝私下转账',
    badge: 'SAFE',
    pill: '租号前先验实名与资料',
    tone: 'green',
    image_url: '',
  },
  {
    eyebrow: '高效筛选',
    title: '按区服、段位、哈夫币快速找号',
    badge: 'FAST',
    pill: '支持扫码号与账密号',
    tone: 'orange',
    image_url: '',
  },
]

export async function fetchMobileHomeConfig() {
  const { data } = await apiClient.get<ApiResponse<MobileHomeConfig>>('/mobile-home-config')
  return mergeHomeConfig(data.data)
}

export function mergeHomeConfig(config?: Partial<MobileHomeConfig>): MobileHomeConfig {
  const announcements =
    config?.announcements
      ?.map((item) => (typeof item === 'string' ? item.trim() : ''))
      .filter(Boolean) || []
  const banners =
    config?.banners
      ?.map((item) => {
        const banner = isBannerLike(item) ? item : ({} as Partial<HomeBannerSlide>)
        return {
          eyebrow: banner.eyebrow?.trim() || '',
          title: banner.title?.trim() || '',
          badge: banner.badge?.trim() || '',
          pill: banner.pill?.trim() || '',
          tone: normalizeBannerTone(banner.tone),
          image_url: banner.image_url?.trim() || '',
        }
      })
      .filter((item) => item.title || item.image_url) || []

  return {
    announcements: announcements.length ? announcements : defaultHomeAnnouncements,
    banners: banners.length ? banners : defaultHomeBanners,
    publish_options: mergeListingPublishOptions(config?.publish_options),
  }
}

function isBannerLike(value: unknown): value is Partial<HomeBannerSlide> {
  return typeof value === 'object' && value !== null
}

function normalizeBannerTone(tone?: string) {
  if (tone === 'green' || tone === 'orange') return tone
  return 'blue'
}