import { NextRequest, NextResponse } from 'next/server';
import { getSession } from '@/lib/session';
import { db } from '@/lib/db';
import { users } from '@/lib/db/schema';
import { eq } from 'drizzle-orm';
import { logActivity, ACTIONS, ENTITY_TYPES } from '@/lib/activity-logger';

export async function GET(request: NextRequest) {
	try {
		const session = await getSession();
		if (!session) {
			return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
		}

		// Get user profile
		const [user] = await db
			.select({
				id: users.id,
				email: users.email,
				name: users.name,
				surname: users.surname,
				role: users.role,
				createdAt: users.createdAt,
			})
			.from(users)
			.where(eq(users.id, session.userId))
			.limit(1);

		if (!user) {
			return NextResponse.json({ error: 'User not found' }, { status: 404 });
		}

		return NextResponse.json({
			user: {
				...user,
				createdAt: user.createdAt.toISOString(),
			},
		});
	} catch (error) {
		console.error('Error fetching user profile:', error);
		return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
	}
}

export async function PATCH(request: NextRequest) {
	try {
		const session = await getSession();
		if (!session) {
			return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
		}

		const { name, surname } = await request.json();

		// Validate required fields
		if (!name || !surname) {
			return NextResponse.json({ error: 'Name and surname are required' }, { status: 400 });
		}

		// Get current user data for logging
		const [currentUser] = await db.select().from(users).where(eq(users.id, session.userId)).limit(1);

		if (!currentUser) {
			return NextResponse.json({ error: 'User not found' }, { status: 404 });
		}

		// Update user profile
		await db
			.update(users)
			.set({
				name: name.trim(),
				surname: surname.trim(),
				updatedAt: new Date(),
			})
			.where(eq(users.id, session.userId));

		// Log the activity
		await logActivity({
			userId: session.userId,
			action: ACTIONS.USER_UPDATE,
			entityType: ENTITY_TYPES.USER,
			entityId: session.userId,
			details: {
				previousData: {
					name: currentUser.name,
					surname: currentUser.surname,
				},
				newData: {
					name: name.trim(),
					surname: surname.trim(),
				},
			},
			request,
		});

		return NextResponse.json({
			success: true,
			message: 'Profile updated successfully',
		});
	} catch (error) {
		console.error('Error updating user profile:', error);
		return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
	}
}