feat(rental): Sprint B — catalogue public /materiel + détail item + dispo + nav

src/app/api/rentals/items/[id]/availability/route.ts

@@ -0,0 +1,31 @@
+import { NextResponse } from "next/server";
+import type { NextRequest } from "next/server";
+
+import { getItemAvailability } from "@/lib/rentals-public";
+import { parseIsoDate, normalizeUtcDayStart } from "@/lib/booking";
+
+export const runtime = "nodejs";
+
+export async function GET(req: NextRequest, ctx: { params: Promise<{ id: string }> }) {
+  const { id } = await ctx.params;
+  const from = parseIsoDate(req.nextUrl.searchParams.get("from"));
+  const to = parseIsoDate(req.nextUrl.searchParams.get("to"));
+  if (!from || !to) {
+    return NextResponse.json(
+      { error: "Paramètres from et to (YYYY-MM-DD) requis." },
+      { status: 400 },
+    );
+  }
+  const start = normalizeUtcDayStart(from);
+  const end = normalizeUtcDayStart(to);
+  if (end <= start) {
+    return NextResponse.json({ error: "to doit être > from." }, { status: 400 });
+  }
+  const calendar = await getItemAvailability(id, start, end);
+  return NextResponse.json({
+    itemId: id,
+    from: start.toISOString(),
+    to: end.toISOString(),
+    calendar,
+  });
+}