feat: phase 5 — rewards system, triggers sur session/ami/groupe, seed 7 récompenses

backend/src/services/reward.service.ts

@@ -0,0 +1,76 @@
+import { prisma } from "../index";
+
+// Conditions disponibles — à étendre librement
+const CONDITIONS: Record<string, (userId: string) => Promise<boolean>> = {
+  first_program: async (userId) => {
+    const count = await prisma.history.count({
+      where: { userId, completedAt: { not: null } },
+    });
+    return count >= 1;
+  },
+  five_programs: async (userId) => {
+    const count = await prisma.history.count({
+      where: { userId, completedAt: { not: null } },
+    });
+    return count >= 5;
+  },
+  ten_programs: async (userId) => {
+    const count = await prisma.history.count({
+      where: { userId, completedAt: { not: null } },
+    });
+    return count >= 10;
+  },
+  first_friend: async (userId) => {
+    const count = await prisma.friendRequest.count({
+      where: {
+        status: "ACCEPTED",
+        OR: [{ senderId: userId }, { receiverId: userId }],
+      },
+    });
+    return count >= 1;
+  },
+  five_friends: async (userId) => {
+    const count = await prisma.friendRequest.count({
+      where: {
+        status: "ACCEPTED",
+        OR: [{ senderId: userId }, { receiverId: userId }],
+      },
+    });
+    return count >= 5;
+  },
+  first_group: async (userId) => {
+    const count = await prisma.groupMember.count({ where: { userId } });
+    return count >= 1;
+  },
+  first_program_created: async (userId) => {
+    const count = await prisma.program.count({ where: { authorId: userId } });
+    return count >= 1;
+  },
+};
+
+// Vérifie et attribue toutes les récompenses débloquées pour un utilisateur
+export async function checkAndGrantRewards(userId: string): Promise<string[]> {
+  const allRewards = await prisma.reward.findMany();
+  const earned = await prisma.userReward.findMany({
+    where: { userId },
+    select: { rewardId: true },
+  });
+  const earnedIds = new Set(earned.map((r) => r.rewardId));
+
+  const newlyEarned: string[] = [];
+
+  for (const reward of allRewards) {
+    if (earnedIds.has(reward.id!)) continue;
+
+    const checker = CONDITIONS[reward.condition];
+    if (!checker) continue;
+
+    const unlocked = await checker(userId);
+    if (unlocked) {
+      await prisma.userReward.create({ data: { userId, rewardId: reward.id! } });
+      newlyEarned.push(reward.name);
+    }
+  }
+
+  return newlyEarned;
+}