"use client"

import * as React from "react"
import { Loader, Trash } from "lucide-react"
import { toast } from "sonner"

import { useMediaQuery } from "@/hooks/use-media-query"
import { Button } from "@/components/ui/button"
import {
  Dialog,
  DialogClose,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogTitle,
  DialogTrigger,
} from "@/components/ui/dialog"
import {
  Drawer,
  DrawerClose,
  DrawerContent,
  DrawerDescription,
  DrawerFooter,
  DrawerHeader,
  DrawerTitle,
  DrawerTrigger,
} from "@/components/ui/drawer"

import { deleteFormDataByTags } from "@/lib/forms/services"

interface GenericData {
  [key: string]: any
  TAG_NO?: string
}

interface DeleteFormDataDialogProps
  extends React.ComponentPropsWithoutRef<typeof Dialog> {
  formData: GenericData[]
  formCode: string
  contractItemId: number
  showTrigger?: boolean
  onSuccess?: () => void
  triggerVariant?: "default" | "destructive" | "outline" | "secondary" | "ghost" | "link"
}

export function DeleteFormDataDialog({
  formData,
  formCode,
  contractItemId,
  showTrigger = true,
  onSuccess,
  triggerVariant = "outline",
  ...props
}: DeleteFormDataDialogProps) {
  const [isDeletePending, startDeleteTransition] = React.useTransition()
  const isDesktop = useMediaQuery("(min-width: 640px)")

  // TAG_NO가 있는 항목들만 필터링
  const validItems = formData.filter(item => item.TAG_NO?.trim())
  const tagNos = validItems.map(item => item.TAG_NO).filter(Boolean) as string[]

  function onDelete() {
    startDeleteTransition(async () => {
      if (tagNos.length === 0) {
        toast.error("No valid items to delete")
        return
      }

      const result = await deleteFormDataByTags({
        formCode,
        contractItemId,
        tagNos,
      })

      if (result.error) {
        toast.error(result.error)
        return
      }

      props.onOpenChange?.(false)
      
      // 성공 메시지 (개수는 같을 것으로 예상)
      const deletedCount = result.deletedCount || 0
      const deletedTagsCount = result.deletedTagsCount || 0
      
      if (deletedCount !== deletedTagsCount) {
        // 데이터 불일치 경고
        console.warn(`Data inconsistency: FormEntries deleted: ${deletedCount}, Tags deleted: ${deletedTagsCount}`)
        toast.error(
          `Deleted ${deletedCount} form entries and ${deletedTagsCount} tags (data inconsistency detected)`
        )
      } else {
        // 정상적인 삭제 완료
        toast.success(
          `Successfully deleted ${deletedCount} item${deletedCount === 1 ? "" : "s"}`
        )
      }
      
      onSuccess?.()
    })
  }

  const itemCount = tagNos.length
  const hasValidItems = itemCount > 0

  if (isDesktop) {
    return (
      <Dialog {...props}>
        {showTrigger ? (
          <DialogTrigger asChild>
            <Button 
              variant={triggerVariant} 
              size="sm"
              disabled={!hasValidItems}
            >
              <Trash className="mr-2 size-4" aria-hidden="true" />
              Delete ({itemCount})
            </Button>
          </DialogTrigger>
        ) : null}
        <DialogContent>
          <DialogHeader>
            <DialogTitle>Are you absolutely sure?</DialogTitle>
            <DialogDescription>
              This action cannot be undone. This will permanently delete{" "}
              <span className="font-medium">{itemCount}</span>
              {itemCount === 1 ? " item" : " items"} and related tag records from the database.
              {itemCount > 0 && (
                <>
                  <br />
                  <br />
                  <span className="text-sm text-muted-foreground">
                    TAG_NO(s): {tagNos.slice(0, 3).join(", ")}
                    {tagNos.length > 3 && ` and ${tagNos.length - 3} more...`}
                  </span>
                </>
              )}
            </DialogDescription>
          </DialogHeader>
          <DialogFooter className="gap-2 sm:space-x-0">
            <DialogClose asChild>
              <Button variant="outline">Cancel</Button>
            </DialogClose>
            <Button
              aria-label="Delete selected entries"
              variant="destructive"
              onClick={onDelete}
              disabled={isDeletePending || !hasValidItems}
            >
              {isDeletePending && (
                <Loader
                  className="mr-2 size-4 animate-spin"
                  aria-hidden="true"
                />
              )}
              Delete
            </Button>
          </DialogFooter>
        </DialogContent>
      </Dialog>
    )
  }

  return (
    <Drawer {...props}>
      {showTrigger ? (
        <DrawerTrigger asChild>
          <Button 
            variant={triggerVariant} 
            size="sm"
            disabled={!hasValidItems}
          >
            <Trash className="mr-2 size-4" aria-hidden="true" />
            Delete ({itemCount})
          </Button>
        </DrawerTrigger>
      ) : null}
      <DrawerContent>
        <DrawerHeader>
          <DrawerTitle>Are you absolutely sure?</DrawerTitle>
          <DrawerDescription>
            This action cannot be undone. This will permanently delete{" "}
            <span className="font-medium">{itemCount}</span>
            {itemCount === 1 ? " item" : " items"} and related tag records from the database.
            {itemCount > 0 && (
              <>
                <br />
                <br />
                <span className="text-sm text-muted-foreground">
                  TAG_NO(s): {tagNos.slice(0, 3).join(", ")}
                  {tagNos.length > 3 && ` and ${tagNos.length - 3} more...`}
                </span>
              </>
            )}
          </DrawerDescription>
        </DrawerHeader>
        <DrawerFooter className="gap-2 sm:space-x-0">
          <DrawerClose asChild>
            <Button variant="outline">Cancel</Button>
          </DrawerClose>
          <Button
            aria-label="Delete selected entries"
            variant="destructive"
            onClick={onDelete}
            disabled={isDeletePending || !hasValidItems}
          >
            {isDeletePending && (
              <Loader className="mr-2 size-4 animate-spin" aria-hidden="true" />
            )}
            Delete
          </Button>
        </DrawerFooter>
      </DrawerContent>
    </Drawer>
  )
}