"use client"

import * as React from "react"
import { useForm } from "react-hook-form"
import { zodResolver } from "@hookform/resolvers/zod"

import { Dialog, DialogTrigger, DialogContent, DialogHeader, DialogTitle, DialogDescription, DialogFooter } from "@/components/ui/dialog"
import { Button } from "@/components/ui/button"
import { Input } from "@/components/ui/input"
// react-hook-form + shadcn/ui Form
import {
  Form,
  FormControl,
  FormField,
  FormItem,
  FormLabel,
  FormMessage,
} from "@/components/ui/form"
// shadcn/ui Select
import {
  Select,
  SelectContent,
  SelectGroup,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select"

import { tasks } from "@/db/schema/tasks" // enumValues 가져올 DB 스키마
import { createTaskSchema, type CreateTaskSchema } from "@/lib/tasks/validations"
import { createTask } from "@/lib/tasks/service" // 서버 액션 혹은 API

export function AddTaskDialog() {
  const [open, setOpen] = React.useState(false)

  // react-hook-form 세팅
  const form = useForm<CreateTaskSchema>({
    resolver: zodResolver(createTaskSchema),
    defaultValues: {
      title: "",
      label: tasks.label.enumValues[0] ?? "",     // enumValues 중 첫 번째를 기본값으로
      status: tasks.status.enumValues[0] ?? "",
      priority: tasks.priority.enumValues[0] ?? "",
    },
  })

  async function onSubmit(data: CreateTaskSchema) {
    const result = await createTask(data)
    if (result.error) {
      alert(`에러: ${result.error}`)
      return
    }
    // 성공 시 모달 닫고 폼 리셋
    form.reset()
    setOpen(false)
  }

  function handleDialogOpenChange(nextOpen: boolean) {
    if (!nextOpen) {
      form.reset()
    }
    setOpen(nextOpen)
  }

  return (
    <Dialog open={open} onOpenChange={handleDialogOpenChange}>
      {/* 모달을 열기 위한 버튼 */}
      <DialogTrigger asChild>
        <Button variant="default" size="sm">
          Add Task
        </Button>
      </DialogTrigger>

      <DialogContent>
        <DialogHeader>
          <DialogTitle>Create New Task</DialogTitle>
          <DialogDescription>
            새 Task 정보를 입력하고 <b>Create</b> 버튼을 누르세요.
          </DialogDescription>
        </DialogHeader>

        {/* shadcn/ui Form을 이용해 react-hook-form과 연결 */}
        <Form {...form}>
          <form onSubmit={form.handleSubmit(onSubmit)}>
            <div className="space-y-4 py-4">
              {/* Title 필드 */}
              <FormField
                control={form.control}
                name="title"
                render={({ field }) => (
                  <FormItem>
                    <FormLabel>Title</FormLabel>
                    <FormControl>
                      <Input
                        placeholder="e.g. Fix the layout bug"
                        {...field}
                      />
                    </FormControl>
                    <FormMessage />
                  </FormItem>
                )}
              />

              {/* Label (Select) */}
              <FormField
                control={form.control}
                name="label"
                render={({ field }) => (
                  <FormItem>
                    <FormLabel>Label</FormLabel>
                    <FormControl>
                      <Select
                        onValueChange={field.onChange}
                        value={field.value}
                      >
                        <SelectTrigger className="capitalize">
                          <SelectValue placeholder="Select a label" />
                        </SelectTrigger>
                        <SelectContent>
                          <SelectGroup>
                            {tasks.label.enumValues.map((item) => (
                              <SelectItem
                                key={item}
                                value={item}
                                className="capitalize"
                              >
                                {item}
                              </SelectItem>
                            ))}
                          </SelectGroup>
                        </SelectContent>
                      </Select>
                    </FormControl>
                    <FormMessage />
                  </FormItem>
                )}
              />

              {/* Status (Select) */}
              <FormField
                control={form.control}
                name="status"
                render={({ field }) => (
                  <FormItem>
                    <FormLabel>Status</FormLabel>
                    <FormControl>
                      <Select
                        onValueChange={field.onChange}
                        value={field.value}
                      >
                        <SelectTrigger className="capitalize">
                          <SelectValue placeholder="Select a status" />
                        </SelectTrigger>
                        <SelectContent>
                          <SelectGroup>
                            {tasks.status.enumValues.map((item) => (
                              <SelectItem
                                key={item}
                                value={item}
                                className="capitalize"
                              >
                                {item}
                              </SelectItem>
                            ))}
                          </SelectGroup>
                        </SelectContent>
                      </Select>
                    </FormControl>
                    <FormMessage />
                  </FormItem>
                )}
              />

              {/* Priority (Select) */}
              <FormField
                control={form.control}
                name="priority"
                render={({ field }) => (
                  <FormItem>
                    <FormLabel>Priority</FormLabel>
                    <FormControl>
                      <Select
                        onValueChange={field.onChange}
                        value={field.value}
                      >
                        <SelectTrigger className="capitalize">
                          <SelectValue placeholder="Select a priority" />
                        </SelectTrigger>
                        <SelectContent>
                          <SelectGroup>
                            {tasks.priority.enumValues.map((item) => (
                              <SelectItem
                                key={item}
                                value={item}
                                className="capitalize"
                              >
                                {item}
                              </SelectItem>
                            ))}
                          </SelectGroup>
                        </SelectContent>
                      </Select>
                    </FormControl>
                    <FormMessage />
                  </FormItem>
                )}
              />
            </div>

            <DialogFooter>
              <Button
                type="button"
                variant="outline"
                onClick={() => setOpen(false)}
              >
                Cancel
              </Button>
              <Button type="submit" disabled={form.formState.isSubmitting}>
                Create
              </Button>
            </DialogFooter>
          </form>
        </Form>
      </DialogContent>
    </Dialog>
  )
}