import { prisma } from './prisma';

export class AnalyticsService {
    static async getDashboardStats(organizationId: string) {
        const [totalUsers, activeEnrollments, completedEnrollments, totalTracks, totalRevenue] = await Promise.all([
            prisma.user.count({ where: { organizationId, deletedAt: null } }),
            prisma.enrollment.count({ where: { status: 'ACTIVE', organizationId, deletedAt: null } }),
            prisma.enrollment.count({ where: { status: 'COMPLETED', organizationId, deletedAt: null } }),
            prisma.track.count({ where: { organizationId } }),
            prisma.payment.aggregate({ where: { status: 'COMPLETED', organizationId }, _sum: { amount: true } }),
        ]);

        return {
            totalUsers,
            activeEnrollments,
            completedEnrollments,
            totalTracks,
            totalRevenue: totalRevenue._sum.amount || 0
        };
    }
}