feat(p1): calendrier dispo + emails Resend + amount calculé + best-effort welcome/confirmation/refund

src/app/api/bookings/route.ts

@@ -16,6 +16,7 @@ import {
   parseIsoDate,
 } from "@/lib/booking";
 import { prisma } from "@/lib/prisma";
+import { sendBookingRequestToOwner, sendBookingRequestToTenant } from "@/lib/email";
 
 export const runtime = "nodejs";
 
@@ -78,6 +79,9 @@ export async function POST(request: Request) {
       ownerId: true,
       capacity: true,
       status: true,
+      nightlyPrice: true,
+      title: true,
+      owner: { select: { email: true, firstName: true } },
     },
   });
 
@@ -183,6 +187,12 @@ export async function POST(request: Request) {
     }
   }
 
+  const nights = Math.max(
+    1,
+    Math.round((endDate.getTime() - startDate.getTime()) / 86400000),
+  );
+  const computedAmount = Number(carbet.nightlyPrice) * nights;
+
   const booking = await prisma.booking.create({
     data: {
       carbetId: carbet.id,
@@ -191,7 +201,7 @@ export async function POST(request: Request) {
       endDate,
       guestCount,
       status: BookingStatus.PENDING,
-      amount: 0,
+      amount: computedAmount.toFixed(2),
       currency: "EUR",
     },
     select: {
@@ -207,5 +217,34 @@ export async function POST(request: Request) {
     },
   });
 
+  // Best-effort emails (n'échouent pas la réservation si Resend down).
+  const tenant = await prisma.user.findUnique({
+    where: { id: session.user.id },
+    select: { email: true, firstName: true, lastName: true },
+  });
+  if (tenant) {
+    sendBookingRequestToTenant(
+      tenant.email,
+      tenant.firstName,
+      booking.id,
+      carbet.title,
+      booking.startDate,
+      booking.endDate,
+      computedAmount.toFixed(2),
+      "EUR",
+    ).catch(() => {});
+  }
+  if (carbet.owner?.email && tenant) {
+    sendBookingRequestToOwner(
+      carbet.owner.email,
+      carbet.owner.firstName,
+      booking.id,
+      carbet.title,
+      `${tenant.firstName} ${tenant.lastName}`.trim(),
+      booking.startDate,
+      booking.endDate,
+    ).catch(() => {});
+  }
+
   return NextResponse.json({ booking }, { status: 201 });
 }

src/app/api/signup/route.ts

@@ -5,6 +5,7 @@ import { UserRole } from "@/generated/prisma/enums";
 import { hashPassword } from "@/lib/password";
 import { prisma } from "@/lib/prisma";
 import { recordAudit } from "@/lib/admin/audit";
+import { sendSignupWelcome } from "@/lib/email";
 
 export const runtime = "nodejs";
 
@@ -60,5 +61,8 @@ export async function POST(req: Request) {
     details: { role: user.role },
   });
 
+  // Best-effort welcome email.
+  sendSignupWelcome(user.email, data.firstName).catch(() => {});
+
   return NextResponse.json({ ok: true, userId: user.id });
 }