import { z } from 'zod'
import {
  DEFAULT_ANNOUNCEMENT_ALIGNMENT,
  DEFAULT_ANNOUNCEMENT_BACKGROUND_COLOR,
  isValidAnnouncementBackgroundColor,
  normalizeAnnouncementAlignment,
  normalizeAnnouncementBackgroundColor,
  normalizeAnnouncementUrl
} from '../../lib/announcement-bar.js'
import {
  DEFAULT_BRAND_COLOR,
  isValidBrandColor,
  normalizeBrandColor
} from '../../lib/brand-color.js'
import {
  DEFAULT_SIGNUP_BLOCKED_USERNAMES,
  MAX_SIGNUP_BLOCKED_USERNAME_COUNT,
  MAX_SIGNUP_BLOCKED_USERNAME_LENGTH,
  normalizeSignupBlockedUsernames
} from '../../lib/signup-blocked-usernames.js'

export const adminSiteSettingsInputSchema = z.object({
  title: z.string().trim().min(1),
  description: z.string().trim().min(1),
  siteUrl: z.string().trim().url(),
  logoText: z.string().trim().max(8).optional().default('井'),
  logoUrl: z.string().trim().max(500).optional().default(''),
  faviconUrl: z.string().trim().max(500).optional().default(''),
  copyrightText: z.string().trim().min(1),
  showPostUpdatedAt: z.boolean().optional().default(false),
  homeCoverImageUrl: z.string().trim().max(500).optional().default(''),
  homeCoverDarkImageUrl: z.string().trim().max(500).optional().default(''),
  homeCoverTitle: z.string().trim().max(120).optional().default(''),
  homeCoverText: z.string().trim().max(280).optional().default(''),
  brandColor: z.string().trim().optional().default(DEFAULT_BRAND_COLOR),
  announcementEnabled: z.boolean().optional().default(false),
  announcementText: z.string().trim().max(200).optional().default(''),
  announcementUrl: z.string().trim().max(500).optional().default(''),
  announcementBackgroundColor: z.string().trim().optional().default(DEFAULT_ANNOUNCEMENT_BACKGROUND_COLOR),
  announcementAlignment: z.string().trim().optional().default(DEFAULT_ANNOUNCEMENT_ALIGNMENT),
  signupBlockedUsernames: z.array(
    z.string().trim().min(1).max(MAX_SIGNUP_BLOCKED_USERNAME_LENGTH)
  ).max(MAX_SIGNUP_BLOCKED_USERNAME_COUNT).optional().default([...DEFAULT_SIGNUP_BLOCKED_USERNAMES]),
  adsTxt: z.string().max(20000).optional().default(''),
  customHeadCode: z.string().max(50000).optional().default(''),
  customFooterCode: z.string().max(50000).optional().default('')
}).superRefine((data, ctx) => {
  if (!isValidAnnouncementBackgroundColor(data.announcementBackgroundColor)) {
    ctx.addIssue({
      code: z.ZodIssueCode.custom,
      message: '어나운스 바 배경색이 올바르지 않습니다.',
      path: ['announcementBackgroundColor']
    })
  }

  if (!isValidBrandColor(data.brandColor)) {
    ctx.addIssue({
      code: z.ZodIssueCode.custom,
      message: '브랜드 컬러가 올바르지 않습니다.',
      path: ['brandColor']
    })
  }

  if (data.announcementEnabled && !data.announcementText.trim()) {
    ctx.addIssue({
      code: z.ZodIssueCode.custom,
      message: '어나운스 바를 사용할 때는 공지 문구를 입력해야 합니다.',
      path: ['announcementText']
    })
  }
}).transform((data) => ({
  ...data,
  brandColor: normalizeBrandColor(data.brandColor),
  announcementUrl: normalizeAnnouncementUrl(data.announcementUrl),
  announcementBackgroundColor: normalizeAnnouncementBackgroundColor(data.announcementBackgroundColor),
  announcementAlignment: normalizeAnnouncementAlignment(data.announcementAlignment),
  signupBlockedUsernames: normalizeSignupBlockedUsernames(data.signupBlockedUsernames)
}))

/**
 * 관리자 사이트 설정 입력값 정리
 * @param {unknown} body - 요청 본문
 * @returns {import('zod').SafeParseReturnType<unknown, Object>} 검증 결과
 */
export const parseAdminSiteSettingsInput = (body) => adminSiteSettingsInputSchema.safeParse(body)