import React from 'react'
import { Ic } from '@/icons'
import {
  SERVICE_LANGUAGES,
  type ServiceLanguageCode,
  type ServiceLanguageMeta,
  type ServiceTranslationProps,
} from './types'

export function ServiceTranslation({
  activeLang,
  onLangChange,
  completedLangs,
  dirtyLangs,
  primaryLang,
  title = 'زبان ترجمه و محتوا',
  showDirectionBadge = true,
  showGlobeIcon = true,
  required = false,
  className = '',
  variant = 'grid',
  children,
}: ServiceTranslationProps) {
  const currentLang =
    SERVICE_LANGUAGES.find((l) => l.code === activeLang) || SERVICE_LANGUAGES[0]

  const isCompleted = (code: ServiceLanguageCode): boolean => {
    if (!completedLangs) return false
    if (Array.isArray(completedLangs)) {
      return completedLangs.includes(code)
    }
    return Boolean(completedLangs[code])
  }

  const isDirty = (code: ServiceLanguageCode): boolean => {
    if (!dirtyLangs) return false
    if (Array.isArray(dirtyLangs)) {
      return dirtyLangs.includes(code)
    }
    return Boolean(dirtyLangs[code])
  }

  return (
    <div className={`space-y-3 ${className}`}>
      {/* هدر انتخاب زبان و نمایش دایرکشن */}
      <div className="flex items-center justify-between flex-wrap gap-2">
        <label className="text-xs font-bold text-foreground flex items-center gap-1.5">
          {showGlobeIcon && <Ic name="globe" className="size-3.5 text-primary" />}
          <span>{title}</span>
          {required && <span className="text-rose-500">*</span>}
        </label>

        {showDirectionBadge && (
          <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground font-mono">
            <span>جهت متن:</span>
            <span
              className={`px-1.5 py-0.5 rounded-md font-bold text-[10px] uppercase border ${
                currentLang.dir === 'rtl'
                  ? 'bg-amber-500/10 text-amber-600 dark:text-amber-400 border-amber-500/20'
                  : 'bg-blue-500/10 text-blue-600 dark:text-blue-400 border-blue-500/20'
              }`}
            >
              {currentLang.dir.toUpperCase()}
            </span>
          </div>
        )}
      </div>

      {/* تب‌های انتخاب زبان */}
      {variant === 'pills' ? (
        <div className="flex items-center gap-1.5 overflow-x-auto no-scrollbar p-1 rounded-xl bg-surface-base border border-border-soft">
          {SERVICE_LANGUAGES.map((lang) => {
            const isSelected = activeLang === lang.code
            const hasData = isCompleted(lang.code)
            const dirty = isDirty(lang.code)
            const isBase = primaryLang ? primaryLang === lang.code : lang.code === 'ar'

            return (
              <button
                key={lang.code}
                type="button"
                onClick={() => onLangChange(lang.code)}
                className={`relative px-3 py-1.5 text-xs rounded-lg transition-colors font-medium flex items-center gap-1.5 shrink-0 cursor-pointer ${
                  isSelected
                    ? 'bg-primary text-white shadow-xs font-bold'
                    : hasData
                    ? 'bg-card text-foreground hover:bg-card/80 border border-border-soft'
                    : 'text-muted-foreground hover:text-foreground hover:bg-card/50'
                }`}
              >
                <span className="text-sm leading-none">{lang.flag}</span>
                <span>{lang.name}</span>
                {isBase && !isSelected && (
                  <span className="text-[9px] px-1 rounded bg-muted text-muted-foreground font-normal">
                    پیش‌فرض
                  </span>
                )}
                {hasData && (
                  <span
                    className={`size-1.5 rounded-full shrink-0 ${
                      isSelected ? 'bg-white' : 'bg-emerald-500'
                    }`}
                  />
                )}
                {dirty && (
                  <span className="size-1.5 rounded-full bg-amber-400 animate-pulse shrink-0" />
                )}
              </button>
            )
          })}
        </div>
      ) : (
        <div className="grid grid-cols-2 sm:grid-cols-5 gap-2 p-1.5 rounded-2xl bg-surface-base/80 border border-border-soft">
          {SERVICE_LANGUAGES.map((lang) => {
            const isSelected = activeLang === lang.code
            const hasData = isCompleted(lang.code)
            const dirty = isDirty(lang.code)
            const isBase = primaryLang ? primaryLang === lang.code : lang.code === 'ar'

            return (
              <button
                key={lang.code}
                type="button"
                onClick={() => onLangChange(lang.code)}
                className={`h-11 px-3 rounded-xl text-xs font-bold transition flex items-center justify-center gap-2 relative cursor-pointer ${
                  isSelected
                    ? 'bg-primary text-primary-foreground shadow-xs'
                    : 'text-muted-foreground hover:text-foreground hover:bg-card border border-transparent hover:border-border-soft'
                }`}
              >
                <span className="text-base">{lang.flag}</span>
                <span className="truncate">{lang.name}</span>
                {isBase && (
                  <span
                    className={`text-[9px] px-1 py-0.2 rounded font-normal shrink-0 ${
                      isSelected ? 'bg-white/20 text-white' : 'bg-muted text-muted-foreground'
                    }`}
                  >
                    پایه
                  </span>
                )}
                {hasData && (
                  <span
                    className={`size-2 rounded-full shrink-0 ${
                      isSelected ? 'bg-white' : 'bg-emerald-500'
                    }`}
                    title="دارای محتوای ترجمه‌شده"
                  />
                )}
                {dirty && (
                  <span className="size-2 rounded-full bg-amber-400 animate-pulse shrink-0" />
                )}
              </button>
            )
          })}
        </div>
      )}

      {/* اگر کامپوننت حاوی فرزند بود، اینجا قرار می‌گیرد */}
      {children}
    </div>
  )
}