import { zodResolver } from '@hookform/resolvers/zod'
import { useForm } from 'react-hook-form'
import { useTranslation } from 'react-i18next'
import { z } from 'zod'
import { toast } from '@/shared/ui/toast-store'
import { Button } from '@/shared/ui/button'
import { Input } from '@/shared/ui/input'
import { Label } from '@/shared/ui/label'
import { Card, CardContent, CardHeader, CardTitle } from '@/shared/ui/card'
import { HttpError } from '@/shared/api/client'
import { changePassword } from '@/features/auth/api'

const schema = z.object({
  currentPassword: z.string().min(1),
  newPassword: z
    .string()
    .min(8)
    .regex(/^(?=.*\p{Lu})(?=.*\d).+$/u),
})

type FormValues = z.infer<typeof schema>

export function ChangePasswordForm() {
  const { t } = useTranslation()
  const {
    register,
    handleSubmit,
    reset,
    formState: { errors, isSubmitting },
  } = useForm<FormValues>({ resolver: zodResolver(schema) })

  const onSubmit = async (values: FormValues) => {
    try {
      await changePassword(values.currentPassword, values.newPassword)
      toast.success(t('settings.passwordChanged'))
      reset()
    } catch (error) {
      const message =
        error instanceof HttpError && error.status === 400 ? t('settings.currentPasswordInvalid') : t('auth.genericError')
      toast.error(message)
    }
  }

  return (
    <Card>
      <CardHeader>
        <CardTitle className="text-base">{t('settings.changePassword')}</CardTitle>
      </CardHeader>
      <CardContent>
        <form onSubmit={handleSubmit(onSubmit)} className="flex flex-col gap-4">
          <div className="flex flex-col gap-1.5">
            <Label htmlFor="currentPassword">{t('settings.currentPassword')}</Label>
            <Input id="currentPassword" type="password" autoComplete="current-password" {...register('currentPassword')} />
            {errors.currentPassword && <p className="text-sm text-red-500">{t('settings.currentPasswordRequired')}</p>}
          </div>
          <div className="flex flex-col gap-1.5">
            <Label htmlFor="newPassword">{t('settings.newPassword')}</Label>
            <Input id="newPassword" type="password" autoComplete="new-password" {...register('newPassword')} />
            {errors.newPassword && <p className="text-sm text-red-500">{t('auth.passwordHint')}</p>}
          </div>
          <Button type="submit" disabled={isSubmitting} className="self-start">
            {t('settings.changePassword')}
          </Button>
        </form>
      </CardContent>
    </Card>
  )
}