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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 | export const dynamic = "force-dynamic"; import { NextRequest, NextResponse } from 'next/server'; import { } from "next-auth"; import { prisma } from "@/lib/prisma"; import { withAdmin, withErrorHandling, successResponse, ApiSuccessResponse, ApiErrorResponse } from "@/lib/api"; import { } from "@/lib/api/middleware"; interface ReferralAnalyticsData { summary: { totalReferrals: number; totalInPeriod: number; uniqueReferrers: number; successfulReferrals: number; conversionRate: number; }; funnel: { pending: number; signedUp: number; purchased: number; rewarded: number; conversionRate: number; }; topReferrers: Array<{ userId: number; name: string | null; email: string | null; successfulReferrals: number; }>; recentReferrals: Array<{ id: number; referralCode: string; referrer: { id: number; name: string | null; email: string }; referee: { id: number; name: string | null; email: string } | null; status: string; createdAt: Date; convertedAt: Date | null; }>; referralTrend: Array<{ date: string; total: number; completed: number; rewarded: number; }>; dateRange: { startDate: string; endDate: string; }; } /** * GET /api/admin/referrals/analytics * Get referral program analytics */ async function handleGet(request: NextRequest): Promise<NextResponse<ApiSuccessResponse<ReferralAnalyticsData> | ApiErrorResponse>> { const searchParams = request.nextUrl.searchParams; const startDateParam = searchParams.get("startDate"); const endDateParam = searchParams.get("endDate"); // Default to last 30 days const endDate = endDateParam ? new Date(endDateParam) : new Date(); const startDate = startDateParam ? new Date(startDateParam) : new Date(endDate.getTime() - 30 * 24 * 60 * 60 * 1000); // Get referral data const [ totalReferrals, referralsInPeriod, referralsByStatus, topReferrers, recentReferrals, ] = await Promise.all([ // Total referrals prisma.referral.count(), // Referrals in period prisma.referral.findMany({ where: { createdAt: { gte: startDate, lte: endDate } }, include: { referrer: { select: { id: true, name: true, email: true } }, referee: { select: { id: true, name: true, email: true } } } }), // Referrals by status prisma.referral.groupBy({ by: ["status"], where: { createdAt: { gte: startDate, lte: endDate } }, _count: true }), // Top referrers (by successful referrals) prisma.referral.groupBy({ by: ["referrerId"], where: { status: { in: ["purchased", "rewarded"] } }, _count: true, orderBy: { _count: { referrerId: "desc" } }, take: 10 }), // Recent referrals prisma.referral.findMany({ where: { createdAt: { gte: startDate, lte: endDate } }, take: 20, orderBy: { createdAt: "desc" }, include: { referrer: { select: { id: true, name: true, email: true } }, referee: { select: { id: true, name: true, email: true } } } }), ]); // Calculate conversion funnel const statusCounts: Record<string, number> = {}; referralsByStatus.forEach((r) => { statusCounts[r.status] = r._count; }); const totalInPeriod = referralsInPeriod.length; const pendingCount = statusCounts["pending"] || 0; const signedUpCount = statusCounts["signed_up"] || 0; const purchasedCount = statusCounts["purchased"] || 0; const rewardedCount = statusCounts["rewarded"] || 0; // Conversion rates const signupToCompletionRate = totalInPeriod > 0 ? ((purchasedCount + rewardedCount) / totalInPeriod) * 100 : 0; // Get referrer details for top referrers const topReferrerIds = topReferrers.map((r) => r.referrerId); const topReferrerUsers = await prisma.user.findMany({ where: { id: { in: topReferrerIds } }, select: { id: true, name: true, email: true } }); const topReferrersWithDetails = topReferrers.map((r) => { const user = topReferrerUsers.find((u) => u.id === r.referrerId); return { userId: r.referrerId, name: user?.name ?? null, email: user?.email ?? null, successfulReferrals: r._count }; }); // Daily referrals trend const dailyReferrals: Record< string, { total: number; completed: number; rewarded: number } > = {}; referralsInPeriod.forEach((r) => { const dateKey = r.createdAt.toISOString().split("T")[0]; if (!dailyReferrals[dateKey]) { dailyReferrals[dateKey] = { total: 0, completed: 0, rewarded: 0 }; } dailyReferrals[dateKey].total++; if (r.status === "purchased") { dailyReferrals[dateKey].completed++; } if (r.status === "rewarded") { dailyReferrals[dateKey].rewarded++; } }); const referralTrend = Object.entries(dailyReferrals) .map(([date, data]) => ({ date, ...data })) .sort((a, b) => a.date.localeCompare(b.date)); // Count unique referrers const uniqueReferrers = new Set(referralsInPeriod.map((r) => r.referrerId)).size; const analytics: ReferralAnalyticsData = { summary: { totalReferrals, totalInPeriod, uniqueReferrers, successfulReferrals: purchasedCount + rewardedCount, conversionRate: signupToCompletionRate }, funnel: { pending: pendingCount, signedUp: signedUpCount, purchased: purchasedCount, rewarded: rewardedCount, conversionRate: signupToCompletionRate }, topReferrers: topReferrersWithDetails, recentReferrals: recentReferrals.map((r) => ({ id: r.id, referralCode: r.referralCode, referrer: { id: r.referrer.id, name: r.referrer.name, email: r.referrer.email }, referee: r.referee ? { id: r.referee.id, name: r.referee.name, email: r.referee.email } : null, status: r.status, createdAt: r.createdAt, convertedAt: r.convertedAt })), referralTrend, dateRange: { startDate: startDate.toISOString(), endDate: endDate.toISOString() } }; return successResponse(analytics); } export const GET = withErrorHandling(withAdmin(handleGet)); |