"use client"

import * as React from "react"
import { zodResolver } from "@hookform/resolvers/zod"
import { useForm } from "react-hook-form"
import { toast } from "sonner"
import * as z from "zod"
import { Plus } from "lucide-react"

import { Button } from "@/components/ui/button"
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogTitle,
  DialogTrigger,
} from "@/components/ui/dialog"
import {
  Form,
  FormControl,
  FormField,
  FormItem,
  FormLabel,
  FormMessage,
} from "@/components/ui/form"
import { Input } from "@/components/ui/input"

import { createDocumentClassOptionItem } from "@/lib/docu-list-rule/document-class/service"
import { documentClasses } from "@/db/schema/documentClasses"

const createDocumentClassOptionSchema = z.object({
  optionValue: z.string().min(1, "옵션 값은 필수입니다."),
})

type CreateDocumentClassOptionSchema = z.infer<typeof createDocumentClassOptionSchema>

interface DocumentClassOptionAddDialogProps {
  selectedDocumentClass: typeof documentClasses.$inferSelect | null
  onSuccess?: () => void
}

export function DocumentClassOptionAddDialog({
  selectedDocumentClass,
  onSuccess,
}: DocumentClassOptionAddDialogProps) {
  const [open, setOpen] = React.useState(false)
  const [isPending, startTransition] = React.useTransition()

  const form = useForm<CreateDocumentClassOptionSchema>({
    resolver: zodResolver(createDocumentClassOptionSchema),
    defaultValues: {
      optionValue: "",
    },
    mode: "onChange"
  })

  async function onSubmit(input: CreateDocumentClassOptionSchema) {
    if (!selectedDocumentClass) {
      toast.error("Document Class가 선택되지 않았습니다.")
      return
    }

    startTransition(async () => {
      try {
        const result = await createDocumentClassOptionItem({
          documentClassId: selectedDocumentClass.id,
          optionValue: input.optionValue,
        })
        
        if (result.success) {
          toast.success("Document Class 옵션이 생성되었습니다.")
          form.reset()
          setOpen(false)
          onSuccess?.()
        } else {
          toast.error(result.error || "생성에 실패했습니다.")
        }
      } catch (error) {
        console.error("Create error:", error)
        toast.error("Document Class 옵션 생성 중 오류가 발생했습니다.")
      }
    })
  }

  const handleCancel = () => {
    form.reset()
    setOpen(false)
  }

  return (
    <Dialog open={open && !!selectedDocumentClass} onOpenChange={setOpen}>
      <DialogTrigger asChild>
        <Button variant="outline" size="sm" disabled={!selectedDocumentClass}>
          <Plus className="mr-2 h-4 w-4" />
          옵션 추가
        </Button>
      </DialogTrigger>
      <DialogContent className="sm:max-w-[425px]">
        <DialogHeader>
          <DialogTitle>Document Class 옵션 추가</DialogTitle>
          <DialogDescription>
            {selectedDocumentClass?.description || "Document Class"}에 새로운 옵션을 추가합니다.
            <span className="text-red-500 mt-1 block text-sm">* 표시된 항목은 필수 입력사항입니다.</span>
          </DialogDescription>
        </DialogHeader>
        <Form {...form}>
          <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-4">
            <FormField
              control={form.control}
              name="optionValue"
              render={({ field }) => (
                <FormItem>
                  <FormLabel>옵션 값 *</FormLabel>
                  <FormControl>
                    <Input {...field} placeholder="옵션 값을 입력하세요" />
                  </FormControl>
                  <FormMessage />
                </FormItem>
              )}
            />

            <DialogFooter>
              <Button type="button" variant="outline" onClick={handleCancel}>
                취소
              </Button>
              <Button type="submit" disabled={isPending || !form.formState.isValid}>
                {isPending ? "추가 중..." : "추가"}
              </Button>
            </DialogFooter>
          </form>
        </Form>
      </DialogContent>
    </Dialog>
  )
}