import { serve } from 'bun';
import index from './index.html';
import DB from './server/db';

const db = new DB();

const server = serve({
    routes: {
    // Serve index.html for all unmatched routes.
        '/*': index,

        '/api/user/:mail': async req => {
            const mail = req.params.mail;
            console.log('Received request for user:', mail);
            const user = await db.getUserByMail(mail);
            console.log('Fetching user with mail:', mail, 'Result:', user);
            return new Response(JSON.stringify(user), { headers: { 'Content-Type': 'application/json' } });
        },

        '/api/user': {
            async POST(req) {
                try {
                    const { mail } = await req.json() as { mail: string };
                    console.log('Received request to create user with mail:', mail);
                    const user = await db.createUser(mail);
                    return new Response(JSON.stringify(user), { headers: { 'Content-Type': 'application/json' } });
                } catch (err) {
                    console.error('Error creating user:', err);
                    return new Response(JSON.stringify({ error: 'Failed to create user' }), { status: 500 });
                }
            },
        },

        '/api/group/:code': async req => {
            const code = req.params.code;
            console.log('Received request for group:', code);
            const group = await db.getGroupByCode(code);
            console.log('Fetching group with ID:', code, 'Result:', group);
            return new Response(JSON.stringify(group), { headers: { 'Content-Type': 'application/json' } });
        },

        '/api/group': {
            async POST(req) {
                try {
                    const { name, mail } = await req.json() as { name: string; mail: string };
                    console.log('Received request to create group with name:', name, 'and mail:', mail);
                    const response = await db.createGroup({ name, mail });
                    return new Response(JSON.stringify(response), { headers: { 'Content-Type': 'application/json' } });
                } catch (err) {
                    console.error('Error creating group:', err);
                    return new Response(JSON.stringify({ error: 'Failed to create group' }), { status: 500 });
                }
            }
        },

        '/api/group_members/:groupId': async req => {
            const groupId = parseInt(req.params.groupId, 10);
            console.log('Received request for group members of group ID:', groupId);
            const members = await db.getGroupMembers(groupId);
            console.log('Fetching members for group ID:', groupId, 'Result:', members);
            return new Response(JSON.stringify(members), { headers: { 'Content-Type': 'application/json' } });
        },

        '/api/group_members': {
            async POST(req) {
                try {
                    const { groupId, userId } = await req.json() as { groupId: number; userId: number };
                    console.log('Received request to add user ID ', userId, 'to group ID:', groupId);
                    const response = await db.addUserToGroup(groupId, userId);
                    return new Response(JSON.stringify(response), { headers: { 'Content-Type': 'application/json' } });
                } catch (err) {
                    console.error('Error adding user to group:', err);
                    return new Response(JSON.stringify({ error: 'Failed to add user to group' }), { status: 500 });
                }
            }
        }
    },

    development: process.env.NODE_ENV !== 'production' && {
        // Enable browser hot reloading in development
        hmr: true,

        // Echo console logs from the browser to the server
        console: true,
    },
});

console.log(`🚀 Server running at ${server.url}`);