import { Suspense } from 'react';

import { getIntegrationsApiV1IntegrationGet } from "@/client/sdk.gen";
import { getServerAccessToken,getServerAuthProvider } from '@/lib/auth/server';
import logger from '@/lib/logger';

import CreateIntegrationButton from "./CreateIntegrationButton";

export const dynamic = 'force-dynamic';

// Server component for integration list
async function IntegrationList() {
    const authProvider = getServerAuthProvider();
    const accessToken = await getServerAccessToken();

    if (!accessToken) {
        const { redirect } = await import('next/navigation');
        if (authProvider === 'stack') {
            redirect('/');
        } else {
            // For OSS mode, this shouldn't happen as token is auto-generated
            return (
                <div className="text-red-500">
                    Authentication required. Please refresh the page.
                </div>
            );
        }
    }

    try {
        const response = await getIntegrationsApiV1IntegrationGet({
            headers: {
                'Authorization': `Bearer ${accessToken}`,
            },
        });

        const integrationData = response.data ? (Array.isArray(response.data) ? response.data : [response.data]) : [];
        const integrations = [...integrationData].sort((a, b) =>
            new Date(b.created_at).getTime() - new Date(a.created_at).getTime()
        );

        if (integrations.length === 0) {
            return (
                <div className="text-center py-8 text-gray-500">
                    No integrations found. Create your first integration to get started.
                </div>
            );
        }

        return (
            <div className="space-y-6">
                <div className="overflow-x-auto">
                    <table className="min-w-full bg-white border border-gray-200">
                        <thead className="bg-gray-50">
                            <tr>
                                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
                                    Provider
                                </th>
                                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
                                    Channel
                                </th>
                                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
                                    Action
                                </th>
                                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
                                    Created At
                                </th>
                            </tr>
                        </thead>
                        <tbody className="bg-white divide-y divide-gray-200">
                            {integrations.map((integration) => (
                                <tr key={integration.id} className="hover:bg-gray-50">
                                    <td className="px-6 py-4 whitespace-nowrap text-sm font-medium text-gray-900">
                                        {integration.provider}
                                    </td>
                                    <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-500">
                                        {integration.provider === 'slack' && integration.provider_data ? (integration.provider_data.channel as string) || '-' : '-'}
                                    </td>
                                    <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-500">
                                        {integration.action}
                                    </td>
                                    <td className="px-6 py-4 whitespace-nowrap text-sm text-gray-500">
                                        {new Date(integration.created_at).toLocaleDateString('en-US', {
                                            year: 'numeric',
                                            month: 'short',
                                            day: 'numeric',
                                            hour: '2-digit',
                                            minute: '2-digit'
                                        })}
                                    </td>
                                </tr>
                            ))}
                        </tbody>
                    </table>
                </div>
            </div>
        );
    } catch (err) {
        logger.error(`Error fetching integrations: ${err}`);
        return (
            <div className="text-red-500 text-center py-8">
                Failed to load Integrations. Please Try Again Later.
            </div>
        );
    }
}

async function PageContent() {
    const integrationList = await IntegrationList();

    return (
        <div className="container mx-auto px-4 py-8">
            <div className="mb-6">
                <div className="flex justify-between items-center mb-6">
                    <h1 className="text-2xl font-bold">Your Integrations</h1>
                    <CreateIntegrationButton />
                </div>
                {integrationList}
            </div>
        </div>
    );
}

function IntegrationsLoading() {
    return (
        <div className="container mx-auto px-4 py-8">
            <div className="mb-6">
                <div className="flex justify-between items-center mb-6">
                    <div className="h-8 w-48 bg-gray-200 rounded"></div>
                    <div className="h-10 w-32 bg-gray-200 rounded"></div>
                </div>
                <div className="overflow-x-auto">
                    <table className="min-w-full bg-white border border-gray-200">
                        <thead className="bg-gray-50">
                            <tr>
                                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
                                    Integration ID
                                </th>
                                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
                                    Channel
                                </th>
                                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
                                    Action
                                </th>
                                <th className="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">
                                    Created At
                                </th>
                            </tr>
                        </thead>
                        <tbody className="bg-white divide-y divide-gray-200">
                            {Array.from({ length: 5 }, (_, i) => (
                                <tr key={i}>
                                    <td className="px-6 py-4 whitespace-nowrap">
                                        <div className="h-4 w-32 bg-gray-200 rounded"></div>
                                    </td>
                                    <td className="px-6 py-4 whitespace-nowrap">
                                        <div className="h-4 w-24 bg-gray-200 rounded"></div>
                                    </td>
                                    <td className="px-6 py-4 whitespace-nowrap">
                                        <div className="h-4 w-24 bg-gray-200 rounded"></div>
                                    </td>
                                    <td className="px-6 py-4 whitespace-nowrap">
                                        <div className="h-4 w-24 bg-gray-200 rounded"></div>
                                    </td>
                                </tr>
                            ))}
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
    );
}

export default function IntegrationsPage() {
    return (
        <Suspense fallback={<IntegrationsLoading />}>
            <PageContent />
        </Suspense>
    );
}