'use client';

import {useMutation, useQuery, useQueryClient} from '@tanstack/react-query';
import {useMemo, useState} from 'react';
import {Cloud, Plus, Trash2} from 'lucide-react';
import {toast} from 'sonner';

import {
  AlertDialog,
  AlertDialogAction,
  AlertDialogCancel,
  AlertDialogContent,
  AlertDialogDescription,
  AlertDialogFooter,
  AlertDialogHeader,
  AlertDialogTitle,
} from '@/components/ui/alert-dialog';
import {Button} from '@/components/ui/button';
import {Card, CardContent, CardDescription, CardHeader, CardTitle} from '@/components/ui/card';
import {EmptyStateWithBorder} from '@/components/layout/empty';
import {ErrorInline} from '@/components/layout/error';
import {LoadingStateWithBorder} from '@/components/layout/loading';
import type {DnsAccountItem} from '@/lib/services/openflare';
import {DnsAccountService} from '@/lib/services/openflare';
import {formatDateTime} from '@/lib/utils';

import {DnsAccountCreateDialog} from '../websites/components/dns-account-create-dialog';
import {getErrorMessage} from '../websites/components/website-utils';

const dnsAccountsQueryKey = ['openflare', 'dns-accounts'];

export default function DnsAccountsPage() {
  const queryClient = useQueryClient();
  const [createOpen, setCreateOpen] = useState(false);
  const [deleteTarget, setDeleteTarget] = useState<DnsAccountItem | null>(null);

  const dnsAccountsQuery = useQuery({
    queryKey: dnsAccountsQueryKey,
    queryFn: () => DnsAccountService.list(),
  });

  const deleteMutation = useMutation({
    mutationFn: (id: number) => DnsAccountService.deleteById(id),
    onSuccess: async () => {
      toast.success('DNS 账号已删除');
      setDeleteTarget(null);
      await queryClient.invalidateQueries({queryKey: dnsAccountsQueryKey});
    },
    onError: (error) => toast.error(getErrorMessage(error)),
  });

  const accounts = useMemo(
    () => dnsAccountsQuery.data ?? [],
    [dnsAccountsQuery.data],
  );

  return (
    <div className="py-6 px-1 space-y-6">
      <div className="flex items-center justify-between gap-3">
        <div className="flex items-center gap-2">
          <Cloud className="size-5 text-primary" />
          <h1 className="text-2xl font-semibold tracking-tight">DNS 账号</h1>
        </div>
        <div className="flex items-center gap-2">
          <Button size="sm" className="h-7 text-xs" onClick={() => setCreateOpen(true)}>
            <Plus className="size-3.5 mr-1" />
            添加账号
          </Button>
        </div>
      </div>

      <Card className="border-dashed shadow-none">
        <CardHeader className="pb-3">
          <CardTitle className="text-base font-semibold">DNS 账号列表</CardTitle>
          <CardDescription>
            统一管理 DNS 服务商账号，用于 ACME 证书的 DNS 验证申请。
          </CardDescription>
        </CardHeader>
        <CardContent>
          {dnsAccountsQuery.isLoading ? (
            <LoadingStateWithBorder icon={Cloud} description="加载 DNS 账号中..." />
          ) : dnsAccountsQuery.isError ? (
            <div className="p-8 border border-dashed rounded-lg">
              <ErrorInline
                message={getErrorMessage(dnsAccountsQuery.error)}
                onRetry={() => void dnsAccountsQuery.refetch()}
                className="justify-center"
              />
            </div>
          ) : accounts.length === 0 ? (
            <EmptyStateWithBorder
              icon={Cloud}
              description="暂无 DNS 账号，点击右上角「添加账号」开始录入。"
            />
          ) : (
            <div className="space-y-3">
              {accounts.map((account) => (
                <div
                  key={account.id}
                  className="flex items-start justify-between gap-3 rounded-lg border bg-card px-4 py-3"
                >
                  <div className="space-y-1">
                    <p className="text-sm font-semibold">
                      {account.name}{' '}
                      <span className="text-xs font-normal text-muted-foreground">
                        ({account.type})
                      </span>
                    </p>
                    <p className="text-xs text-muted-foreground">
                      创建于：{formatDateTime(account.created_at)}
                    </p>
                  </div>
                  <Button
                    variant="outline"
                    size="sm"
                    className="h-7 text-xs text-destructive"
                    onClick={() => setDeleteTarget(account)}
                  >
                    <Trash2 className="size-3" />
                  </Button>
                </div>
              ))}
            </div>
          )}
        </CardContent>
      </Card>

      <DnsAccountCreateDialog
        open={createOpen}
        onOpenChange={setCreateOpen}
        onCreated={() => toast.success('DNS 账号已添加')}
      />

      <AlertDialog
        open={deleteTarget !== null}
        onOpenChange={(open) => !open && setDeleteTarget(null)}
      >
        <AlertDialogContent>
          <AlertDialogHeader>
            <AlertDialogTitle>确认删除 DNS 账号</AlertDialogTitle>
            <AlertDialogDescription>
              确认删除 DNS 账号 {deleteTarget?.name} 吗？
            </AlertDialogDescription>
          </AlertDialogHeader>
          <AlertDialogFooter>
            <AlertDialogCancel>取消</AlertDialogCancel>
            <AlertDialogAction
              className="bg-destructive text-destructive-foreground hover:bg-destructive/90"
              onClick={() => deleteTarget && deleteMutation.mutate(deleteTarget.id)}
            >
              删除
            </AlertDialogAction>
          </AlertDialogFooter>
        </AlertDialogContent>
      </AlertDialog>
    </div>
  );
}