"use client"

import * as React from "react"
import { type Row } from "@tanstack/react-table"
import { Loader, Check, X } 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 { Vendor } from "@/db/schema/vendors"
import { rejectVendors } from "../service"
import { approveVendorsWithApproval } from "../approval-actions"
import { useSession } from "next-auth/react"

interface VendorDecisionDialogProps
  extends React.ComponentPropsWithoutRef<typeof Dialog> {
  vendors: Row<Vendor>["original"][]
  showTrigger?: boolean
  onSuccess?: () => void
}

export function VendorDecisionDialog({
  vendors,
  showTrigger = true,
  onSuccess,
  ...props
}: VendorDecisionDialogProps) {
  const [isApprovePending, startApproveTransition] = React.useTransition()
  const [isRejectPending, startRejectTransition] = React.useTransition()
  const isDesktop = useMediaQuery("(min-width: 640px)")
  const { data: session } = useSession()

  function onApprove() {
    if (!session?.user?.id) {
      toast.error("사용자 인증 정보를 찾을 수 없습니다.")
      return
    }

    if (!session?.user?.epId) {
      toast.error("Knox EP ID가 없습니다. 시스템 관리자에게 문의하세요.")
      return
    }

    startApproveTransition(async () => {
      try {
        console.log("🔍 [DEBUG] 결재 상신 시작 - vendors:", vendors.map(v => ({ id: v.id, vendorName: v.vendorName, email: v.email })));
        console.log("🔍 [DEBUG] 세션 정보:", { userId: session.user.id, epId: session.user.epId });

        const result = await approveVendorsWithApproval({
          vendorIds: vendors.map((vendor) => vendor.id),
          currentUser: {
            id: Number(session.user.id),
            epId: session.user.epId as string, // 위에서 검증했으므로 타입 단언
            email: session.user.email || undefined,
          },
          // TODO: 필요시 approvers 배열 추가
          // approvers: ['EP001', 'EP002'],
        })

        if (!result.success) {
          console.error("🚨 [DEBUG] 결재 상신 에러:", result.message);
          toast.error(result.message || "결재 상신에 실패했습니다.")
          return
        }

        console.log("✅ [DEBUG] 결재 상신 성공:", result);
        props.onOpenChange?.(false)
        toast.success(`결재가 상신되었습니다. (결재ID: ${result.approvalId})`)
        onSuccess?.()
      } catch (error) {
        console.error("🚨 [DEBUG] 예상치 못한 에러:", error);
        toast.error("예상치 못한 오류가 발생했습니다.")
      }
    })
  }

  function onReject() {
    if (!session?.user?.id) {
      toast.error("사용자 인증 정보를 찾을 수 없습니다.")
      return
    }

    startRejectTransition(async () => {
      try {
        console.log("🔍 [DEBUG] 거절 요청 시작 - vendors:", vendors.map(v => ({ id: v.id, vendorName: v.vendorName, email: v.email })));
        console.log("🔍 [DEBUG] 세션 정보:", { userId: session.user.id, userType: typeof session.user.id });

        const { error } = await rejectVendors({
          ids: vendors.map((vendor) => vendor.id),
          userId: Number(session.user.id)
        })

        if (error) {
          console.error("🚨 [DEBUG] 거절 처리 에러:", error);
          toast.error(error)
          return
        }

        console.log("✅ [DEBUG] 거절 처리 성공");
        props.onOpenChange?.(false)
        toast.success("협력업체 등록이 거절되었습니다.")
        onSuccess?.()
      } catch (error) {
        console.error("🚨 [DEBUG] 예상치 못한 에러:", error);
        toast.error("예상치 못한 오류가 발생했습니다.")
      }
    })
  }

  if (isDesktop) {
    return (
      <Dialog {...props}>
        {showTrigger ? (
          <DialogTrigger asChild>
            <Button variant="outline" size="sm" className="gap-2">
              <Check className="size-4" aria-hidden="true" />
              가입 결정 ({vendors.length})
            </Button>
          </DialogTrigger>
        ) : null}
        <DialogContent className="max-w-2xl">
          <DialogHeader>
            <DialogTitle>협력업체 가입 결정</DialogTitle>
            <DialogDescription>
              선택한 <span className="font-medium">{vendors.length}</span>개 협력업체에 대한 가입 결정을 해주세요.
            </DialogDescription>
          </DialogHeader>

          {/* 선택한 벤더 목록 표시 */}
          <div className="max-h-64 overflow-y-auto border rounded-md p-4">
            <h4 className="font-medium mb-2">선택된 협력업체:</h4>
            <div className="space-y-2">
              {vendors.map((vendor) => (
                <div key={vendor.id} className="flex items-center justify-between p-2 bg-gray-50 rounded">
                  <div>
                    <div className="font-medium">{vendor.vendorName}</div>
                    <div className="text-sm text-gray-600">{vendor.email}</div>
                  </div>
                  <div className="text-sm text-gray-500">ID: {vendor.id}</div>
                </div>
              ))}
            </div>
          </div>

          <DialogFooter className="gap-2 sm:space-x-0">
            <DialogClose asChild>
              <Button variant="outline">취소</Button>
            </DialogClose>
            <Button
              aria-label="Reject selected vendors"
              variant="destructive"
              onClick={onReject}
              disabled={isRejectPending || isApprovePending}
            >
              {isRejectPending && (
                <Loader
                  className="mr-2 size-4 animate-spin"
                  aria-hidden="true"
                />
              )}
              <X className="mr-2 size-4" aria-hidden="true" />
              거절
            </Button>
            <Button
              aria-label="Approve selected vendors"
              variant="default"
              onClick={onApprove}
              disabled={isApprovePending || isRejectPending}
            >
              {isApprovePending && (
                <Loader
                  className="mr-2 size-4 animate-spin"
                  aria-hidden="true"
                />
              )}
              <Check className="mr-2 size-4" aria-hidden="true" />
              승인
            </Button>
          </DialogFooter>
        </DialogContent>
      </Dialog>
    )
  }

  return (
    <Drawer {...props}>
      {showTrigger ? (
        <DrawerTrigger asChild>
          <Button variant="outline" size="sm" className="gap-2">
            <Check className="size-4" aria-hidden="true" />
            가입 결정 ({vendors.length})
          </Button>
        </DrawerTrigger>
      ) : null}
      <DrawerContent className="max-h-[80vh]">
        <DrawerHeader>
          <DrawerTitle>협력업체 가입 결정</DrawerTitle>
          <DrawerDescription>
            선택한 <span className="font-medium">{vendors.length}</span>개 협력업체에 대한 가입 결정을 해주세요.
          </DrawerDescription>
        </DrawerHeader>

        {/* 선택한 벤더 목록 표시 */}
        <div className="max-h-48 overflow-y-auto px-4">
          <h4 className="font-medium mb-2">선택된 협력업체:</h4>
          <div className="space-y-2">
            {vendors.map((vendor) => (
              <div key={vendor.id} className="flex items-center justify-between p-2 bg-gray-50 rounded">
                <div>
                  <div className="font-medium">{vendor.vendorName}</div>
                  <div className="text-sm text-gray-600">{vendor.email}</div>
                </div>
                <div className="text-sm text-gray-500">ID: {vendor.id}</div>
              </div>
            ))}
          </div>
        </div>

        <DrawerFooter className="gap-2 sm:space-x-0">
          <DrawerClose asChild>
            <Button variant="outline">취소</Button>
          </DrawerClose>
          <Button
            aria-label="Reject selected vendors"
            variant="destructive"
            onClick={onReject}
            disabled={isRejectPending || isApprovePending}
          >
            {isRejectPending && (
              <Loader
                className="mr-2 size-4 animate-spin"
                aria-hidden="true"
              />
            )}
            <X className="mr-2 size-4" aria-hidden="true" />
            거절
          </Button>
          <Button
            aria-label="Approve selected vendors"
            variant="default"
            onClick={onApprove}
            disabled={isApprovePending || isRejectPending}
          >
            {isApprovePending && (
              <Loader className="mr-2 size-4 animate-spin"
                aria-hidden="true"
              />
            )}
            <Check className="mr-2 size-4" aria-hidden="true" />
            승인
          </Button>
        </DrawerFooter>
      </DrawerContent>
    </Drawer>
  )
}