Final MVP valid

app/api/analytics/downtime-events/route.ts

@@ -0,0 +1,130 @@
+import { NextResponse } from "next/server";
+import { prisma } from "@/lib/prisma";
+import { requireSession } from "@/lib/auth/requireSession";
+import { coerceDowntimeRange, rangeToStart } from "@/lib/analytics/downtimeRange";
+
+const bad = (status: number, error: string) =>
+  NextResponse.json({ ok: false, error }, { status });
+
+function toISO(d: Date | null | undefined) {
+  return d ? d.toISOString() : null;
+}
+
+export async function GET(req: Request) {
+  // ✅ Session auth (cookie)
+  const session = await requireSession();
+  if (!session) return bad(401, "Unauthorized");
+  const orgId = session.orgId;
+
+  const url = new URL(req.url);
+
+  // ✅ Params
+  const range = coerceDowntimeRange(url.searchParams.get("range"));
+  const start = rangeToStart(range);
+
+  const machineId = url.searchParams.get("machineId"); // optional
+  const reasonCode = url.searchParams.get("reasonCode"); // optional
+
+  const limitRaw = url.searchParams.get("limit");
+  const limit = Math.min(Math.max(Number(limitRaw || 200), 1), 500);
+
+  // Optional pagination: return events before this timestamp (capturedAt)
+  const before = url.searchParams.get("before"); // ISO string
+  const beforeDate = before ? new Date(before) : null;
+  if (before && isNaN(beforeDate!.getTime())) return bad(400, "Invalid before timestamp");
+
+  // ✅ If machineId provided, verify it belongs to this org
+  if (machineId) {
+    const m = await prisma.machine.findFirst({
+      where: { id: machineId, orgId },
+      select: { id: true },
+    });
+    if (!m) return bad(404, "Machine not found");
+  }
+
+  // ✅ Query ReasonEntry as the "episode" table for downtime
+  // We only return rows that have an episodeId (true downtime episodes)
+  const where: any = {
+    orgId,
+    kind: "downtime",
+    episodeId: { not: null },
+    capturedAt: {
+      gte: start,
+      ...(beforeDate ? { lt: beforeDate } : {}),
+    },
+    ...(machineId ? { machineId } : {}),
+    ...(reasonCode ? { reasonCode } : {}),
+  };
+
+  const rows = await prisma.reasonEntry.findMany({
+    where,
+    orderBy: { capturedAt: "desc" },
+    take: limit,
+    select: {
+      id: true,
+      episodeId: true,
+      machineId: true,
+      reasonCode: true,
+      reasonLabel: true,
+      reasonText: true,
+      durationSeconds: true,
+      capturedAt: true,
+      episodeEndTs: true,
+      workOrderId: true,
+      meta: true,
+      createdAt: true,
+      machine: { select: { name: true } },
+    },
+  });
+
+  const events = rows.map((r) => {
+    const startAt = r.capturedAt;
+    const endAt =
+      r.episodeEndTs ??
+      (r.durationSeconds != null
+        ? new Date(startAt.getTime() + r.durationSeconds * 1000)
+        : null);
+
+    const durationSeconds = r.durationSeconds ?? null;
+    const durationMinutes =
+      durationSeconds != null ? Math.round((durationSeconds / 60) * 10) / 10 : null;
+
+    return {
+      id: r.id,
+      episodeId: r.episodeId,
+      machineId: r.machineId,
+      machineName: r.machine?.name ?? null,
+
+      reasonCode: r.reasonCode,
+      reasonLabel: r.reasonLabel ?? r.reasonCode,
+      reasonText: r.reasonText ?? null,
+
+      durationSeconds,
+      durationMinutes,
+
+      startAt: toISO(startAt),
+      endAt: toISO(endAt),
+      capturedAt: toISO(r.capturedAt),
+
+      workOrderId: r.workOrderId ?? null,
+      meta: r.meta ?? null,
+      createdAt: toISO(r.createdAt),
+    };
+  });
+
+  const nextBefore =
+    events.length > 0 ? events[events.length - 1]?.capturedAt ?? null : null;
+
+  return NextResponse.json({
+    ok: true,
+    orgId,
+    range,
+    start,
+    machineId: machineId ?? null,
+    reasonCode: reasonCode ?? null,
+    limit,
+    before: before ?? null,
+    nextBefore, // pass this back for pagination
+    events,
+  });
+}