"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 { createDocumentClassCodeGroup } from "@/lib/docu-list-rule/document-class/service"
import { useParams } from "next/navigation"

const createDocumentClassSchema = z.object({
  value: z.string()
    .min(1, "Value는 필수입니다.")
    .max(1, "Value는 1자리만 입력 가능합니다. (예: A, B, 0, 1)")
    .regex(/^[A-Z0-9]$/, "대문자 알파벳 또는 숫자 1자리만 입력 가능합니다. (예: A, B, 0, 1)"),
  description: z.string().optional(),
})

type CreateDocumentClassSchema = z.infer<typeof createDocumentClassSchema>

interface DocumentClassAddDialogProps {
  onSuccess?: () => void
}

export function DocumentClassAddDialog({
  onSuccess,
}: DocumentClassAddDialogProps) {
  const params = useParams()
  const projectId = Number(params?.projectId)
  const [open, setOpen] = React.useState(false)
  const [isPending, startTransition] = React.useTransition()

  const form = useForm<CreateDocumentClassSchema>({
    resolver: zodResolver(createDocumentClassSchema),
    defaultValues: {
      value: "",
      description: "",
    },
    mode: "onChange"
  })



  async function onSubmit(input: CreateDocumentClassSchema) {
    startTransition(async () => {
      try {
        const result = await createDocumentClassCodeGroup({
          projectId: projectId,
          value: input.value,
          description: input.description,
        })
        
        if (result.success) {
          toast.success("Document Class가 생성되었습니다.")
          form.reset()
          setOpen(false)
          onSuccess?.()
        } else {
          toast.error(result.error || "생성에 실패했습니다.")
        }
      } catch (error) {
        console.error("Create error:", error)
        toast.error("Document Class 생성 중 오류가 발생했습니다.")
      }
    })
  }

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

  return (
    <Dialog open={open} onOpenChange={setOpen}>
      <DialogTrigger asChild>
        <Button variant="outline" size="sm">
          <Plus className="mr-2 h-4 w-4" />
          Add
        </Button>
      </DialogTrigger>
      <DialogContent className="sm:max-w-[425px]">
        <DialogHeader>
          <DialogTitle>Document Class 추가</DialogTitle>
          <DialogDescription>
            새로운 Document Class를 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="value"
              render={({ field }) => (
                <FormItem>
                  <FormLabel>Value *</FormLabel>
                  <FormControl>
                    <Input 
                      {...field} 
                      placeholder="예: A" 
                      maxLength={1}
                      className="uppercase"
                      onChange={(e) => field.onChange(e.target.value.toUpperCase())}
                    />
                  </FormControl>
                  <div className="text-xs text-muted-foreground mt-1">
                    💡 대문자 알파벳 또는 숫자 1자리 (A, B, 0, 1 등) - API DOC_CLASS로 전송됩니다
                  </div>
                  <FormMessage />
                </FormItem>
              )}
            />
            
            <FormField
              control={form.control}
              name="description"
              render={({ field }) => (
                <FormItem>
                  <FormLabel>Description</FormLabel>
                  <FormControl>
                    <Input {...field} placeholder="예: General Documents (선택사항)" />
                  </FormControl>
                  <div className="text-xs text-muted-foreground mt-1">
                    선택사항: Document Class에 대한 추가 설명
                  </div>
                  <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>
  )
}