// Copyright 2026 Arctel.net
// SPDX-License-Identifier: Apache-2.0

'use client';

import dynamic from 'next/dynamic';
import { useEffect, useMemo } from 'react';
import { useQuery } from '@tanstack/react-query';
import { Loader2, Settings } from 'lucide-react';
import { useRouter, useSearchParams } from 'next/navigation';
import { motion } from 'motion/react';

import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
import { useAuth } from '@/components/providers/auth-provider';
import services from '@/lib/services';
import type { SystemConfig } from '@/lib/services/admin';

const tabFallback = (
  <div className='h-64 animate-pulse rounded-lg border border-border/40 bg-muted/20' />
);

const SecurityTab = dynamic(
  () =>
    import('@/components/common/settings/security-tab').then(
      (mod) => mod.SecurityTab,
    ),
  { loading: () => tabFallback },
);

const OperationTab = dynamic(
  () =>
    import('@/components/common/settings/operation-tab').then(
      (mod) => mod.OperationTab,
    ),
  { loading: () => tabFallback },
);

const SystemTab = dynamic(
  () =>
    import('@/components/common/settings/system-tab').then(
      (mod) => mod.SystemTab,
    ),
  { loading: () => tabFallback },
);

const OtherTab = dynamic(
  () =>
    import('@/components/common/settings/other-tab').then(
      (mod) => mod.OtherTab,
    ),
  { loading: () => tabFallback },
);

const InfoTab = dynamic(
  () =>
    import('@/components/common/settings/info-tab').then((mod) => mod.InfoTab),
  { loading: () => tabFallback },
);

const SystemStatusManager = dynamic(
  () =>
    import('./components/system-status').then((mod) => mod.SystemStatusManager),
  { loading: () => tabFallback },
);

const OpenFlareOpsSettings = dynamic(
  () =>
    import('./components/openflare-ops').then(
      (mod) => mod.OpenFlareOpsSettings,
    ),
  { loading: () => tabFallback },
);

function systemConfigMap(configs: SystemConfig[]) {
  return configs.reduce<Record<string, SystemConfig>>((accumulator, config) => {
    accumulator[config.key] = config;
    return accumulator;
  }, {});
}

export function AdminSettingsPageClient() {
  const { user, loading } = useAuth();
  const router = useRouter();
  const searchParams = useSearchParams();

  const activeTab = useMemo(() => {
    const rawTab = searchParams.get('tab');
    const validTabs = [
      'openflare-ops',
      'security',
      'operation',
      'system',
      'other',
      'status',
      'info',
    ];
    return rawTab && validTabs.includes(rawTab) ? rawTab : 'openflare-ops';
  }, [searchParams]);

  const handleTabChange = (value: string) => {
    router.push(`/admin/settings?tab=${value}`);
  };

  const systemConfigsQuery = useQuery({
    queryKey: ['admin', 'system-configs'],
    queryFn: () => services.adminSystemConfig.listSystemConfigs('system'),
    enabled: !!user?.is_admin,
  });

  const configs = useMemo(
    () => systemConfigMap(systemConfigsQuery.data ?? []),
    [systemConfigsQuery.data],
  );

  useEffect(() => {
    if (!loading && (!user || !user.is_admin)) {
      router.replace('/settings/profile');
    }
  }, [user, loading, router]);

  if (loading || !user || !user.is_admin) {
    return (
      <div className='flex items-center justify-center min-h-[400px]'>
        <Loader2 className='size-6 animate-spin text-primary' />
      </div>
    );
  }

  return (
    <motion.div
      initial={{ opacity: 0, y: 15 }}
      animate={{ opacity: 1, y: 0 }}
      transition={{ duration: 0.35, ease: 'easeOut' }}
      className='py-6 space-y-6 w-full'
    >
      <div className='flex items-center gap-2'>
        <Settings className='size-5 text-primary' />
        <div>
          <h1 className='text-2xl font-semibold tracking-tight'>系统设置</h1>
        </div>
      </div>
      <Tabs
        value={activeTab}
        onValueChange={handleTabChange}
        className='w-full'
      >
        <TabsList variant='line' className='w-fit inline-flex gap-8 mb-6'>
          <TabsTrigger
            value='openflare-ops'
            className='px-0 pb-2 text-xs font-semibold'
          >
            OpenFlare
          </TabsTrigger>
          <TabsTrigger
            value='security'
            className='px-0 pb-2 text-xs font-semibold'
          >
            安全设置
          </TabsTrigger>
          <TabsTrigger
            value='operation'
            className='px-0 pb-2 text-xs font-semibold'
          >
            业务设置
          </TabsTrigger>
          <TabsTrigger
            value='system'
            className='px-0 pb-2 text-xs font-semibold'
          >
            系统设置
          </TabsTrigger>
          <TabsTrigger
            value='other'
            className='px-0 pb-2 text-xs font-semibold'
          >
            其他设置
          </TabsTrigger>
          <TabsTrigger
            value='status'
            className='px-0 pb-2 text-xs font-semibold'
          >
            系统状态
          </TabsTrigger>
          <TabsTrigger value='info' className='px-0 pb-2 text-xs font-semibold'>
            系统信息
          </TabsTrigger>
        </TabsList>

        <TabsContent value='security' className='focus-visible:outline-none'>
          <SecurityTab
            configs={configs}
            systemConfigsQuery={systemConfigsQuery}
          />
        </TabsContent>
        <TabsContent value='operation' className='focus-visible:outline-none'>
          <OperationTab
            configs={configs}
            systemConfigsQuery={systemConfigsQuery}
          />
        </TabsContent>
        <TabsContent value='system' className='focus-visible:outline-none'>
          <SystemTab
            configs={configs}
            systemConfigsQuery={systemConfigsQuery}
          />
        </TabsContent>
        <TabsContent value='status' className='focus-visible:outline-none'>
          <SystemStatusManager />
        </TabsContent>
        <TabsContent value='other' className='focus-visible:outline-none'>
          <OtherTab configs={configs} />
        </TabsContent>
        <TabsContent value='info' className='focus-visible:outline-none'>
          <InfoTab />
        </TabsContent>
        <TabsContent
          value='openflare-ops'
          className='focus-visible:outline-none'
        >
          <OpenFlareOpsSettings />
        </TabsContent>
      </Tabs>
    </motion.div>
  );
}