stage 5-6

app/admin/projects/[id]/purchase-orders/[poId]/POClient.tsx

@@ -0,0 +1,309 @@
+"use client";
+
+import Link from "next/link";
+import { useState } from "react";
+import { useRouter } from "next/navigation";
+import {
+  Badge,
+  Button,
+  Card,
+  ErrorBanner,
+  Input,
+  PageHeader,
+} from "@/components/ui";
+import { apiFetch, ApiClientError } from "@/lib/client-api";
+
+interface POInfo {
+  id: string;
+  vendor: string;
+  status: string;
+  createdAt: string;
+  sentAt: string | null;
+  receivedAt: string | null;
+  notes: string | null;
+}
+
+interface LineRow {
+  id: string;
+  fastener: {
+    id: string;
+    partNumber: string;
+    description: string;
+    supplier: string | null;
+    unitCost: number | null;
+  };
+  qty: number;
+  receivedQty: number;
+  unitCost: number | null;
+}
+
+const STATUS_TONE: Record<string, "slate" | "blue" | "green" | "amber" | "red"> = {
+  draft: "slate",
+  sent: "blue",
+  partial: "amber",
+  received: "green",
+  cancelled: "red",
+};
+
+function formatDate(iso: string | null) {
+  if (!iso) return "—";
+  return new Date(iso).toLocaleDateString(undefined, {
+    year: "numeric",
+    month: "short",
+    day: "numeric",
+  });
+}
+
+export default function POClient({
+  project,
+  po,
+  lines,
+}: {
+  project: { id: string; code: string; name: string };
+  po: POInfo;
+  lines: LineRow[];
+}) {
+  const router = useRouter();
+  const [error, setError] = useState<string | null>(null);
+  const [busy, setBusy] = useState(false);
+
+  // Per-line receive input. Keyed by line id so re-renders don't clobber state.
+  const [receipts, setReceipts] = useState<Record<string, string>>({});
+
+  const total = lines.reduce((a, l) => {
+    const cost = l.unitCost ?? l.fastener.unitCost ?? 0;
+    return a + cost * l.qty;
+  }, 0);
+  const totalReceived = lines.reduce((a, l) => a + l.receivedQty, 0);
+  const totalQty = lines.reduce((a, l) => a + l.qty, 0);
+
+  async function changeStatus(next: string) {
+    if (!confirm(`Move PO to "${next}"?`)) return;
+    setBusy(true);
+    setError(null);
+    try {
+      await apiFetch(`/api/v1/purchase-orders/${po.id}/status`, {
+        method: "POST",
+        body: JSON.stringify({ status: next }),
+      });
+      router.refresh();
+    } catch (err) {
+      setError(err instanceof ApiClientError ? err.message : "Status change failed");
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  async function submitReceipts() {
+    const payload = Object.entries(receipts)
+      .map(([lineId, qty]) => ({ lineId, qty: Number(qty) }))
+      .filter((r) => r.qty > 0);
+    if (payload.length === 0) {
+      setError("Enter at least one receipt quantity");
+      return;
+    }
+    setBusy(true);
+    setError(null);
+    try {
+      await apiFetch(`/api/v1/purchase-orders/${po.id}/receive`, {
+        method: "POST",
+        body: JSON.stringify({ receipts: payload }),
+      });
+      setReceipts({});
+      router.refresh();
+    } catch (err) {
+      setError(err instanceof ApiClientError ? err.message : "Receipt failed");
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  async function deleteDraft() {
+    if (!confirm("Delete this draft PO? This can't be undone.")) return;
+    setBusy(true);
+    setError(null);
+    try {
+      await apiFetch(`/api/v1/purchase-orders/${po.id}`, { method: "DELETE" });
+      router.push(`/admin/projects/${project.id}/purchase-orders`);
+    } catch (err) {
+      setError(err instanceof ApiClientError ? err.message : "Delete failed");
+      setBusy(false);
+    }
+  }
+
+  // Which state transitions are offered here — mirror of PO_TRANSITIONS in the API.
+  const canSend = po.status === "draft";
+  const canCancel = po.status !== "received" && po.status !== "cancelled";
+  const canReceive = po.status === "sent" || po.status === "partial";
+  const canDeleteDraft = po.status === "draft";
+
+  return (
+    <div className="mx-auto max-w-5xl px-4 py-8">
+      <nav className="mb-3 text-sm text-slate-500">
+        <Link href="/admin/projects" className="hover:underline">
+          Projects
+        </Link>
+        <span className="mx-1">›</span>
+        <Link href={`/admin/projects/${project.id}`} className="hover:underline">
+          {project.code}
+        </Link>
+        <span className="mx-1">›</span>
+        <Link
+          href={`/admin/projects/${project.id}/purchase-orders`}
+          className="hover:underline"
+        >
+          POs
+        </Link>
+        <span className="mx-1">›</span>
+        <span className="font-mono text-xs">{po.id.slice(0, 8)}</span>
+      </nav>
+
+      <PageHeader
+        title={
+          <span className="flex items-center gap-3">
+            <span>{po.vendor}</span>
+            <Badge tone={STATUS_TONE[po.status] ?? "slate"}>{po.status}</Badge>
+          </span>
+        }
+        description={
+          <span className="flex flex-wrap items-center gap-2 text-slate-500">
+            <span>PO {po.id.slice(0, 8).toUpperCase()}</span>
+            <span className="text-slate-400">·</span>
+            <span>Created {formatDate(po.createdAt)}</span>
+            <span className="text-slate-400">·</span>
+            <span>Sent {formatDate(po.sentAt)}</span>
+            <span className="text-slate-400">·</span>
+            <span>Received {formatDate(po.receivedAt)}</span>
+          </span>
+        }
+        actions={
+          <div className="flex flex-wrap items-center gap-2">
+            <a
+              href={`/api/v1/purchase-orders/${po.id}/pdf`}
+              target="_blank"
+              rel="noopener"
+              className="inline-flex items-center rounded-md bg-white border border-slate-300 text-slate-900 text-sm px-3 py-1.5 hover:border-slate-900"
+            >
+              Download PDF
+            </a>
+            {canSend ? (
+              <Button onClick={() => changeStatus("sent")} disabled={busy}>
+                Mark sent
+              </Button>
+            ) : null}
+            {canCancel ? (
+              <Button variant="secondary" onClick={() => changeStatus("cancelled")} disabled={busy}>
+                Cancel PO
+              </Button>
+            ) : null}
+            {canDeleteDraft ? (
+              <Button variant="danger" size="sm" onClick={deleteDraft} disabled={busy}>
+                Delete draft
+              </Button>
+            ) : null}
+          </div>
+        }
+      />
+
+      {po.notes ? (
+        <Card className="mb-4">
+          <div className="p-4 text-sm text-slate-700 whitespace-pre-wrap">{po.notes}</div>
+        </Card>
+      ) : null}
+
+      <ErrorBanner message={error} />
+
+      <Card>
+        <table className="w-full text-sm">
+          <thead className="bg-slate-50 text-left text-slate-600 border-b border-slate-200">
+            <tr>
+              <th className="px-4 py-2 font-medium">Part #</th>
+              <th className="px-4 py-2 font-medium">Description</th>
+              <th className="px-4 py-2 font-medium text-right">Qty</th>
+              <th className="px-4 py-2 font-medium text-right">Received</th>
+              <th className="px-4 py-2 font-medium text-right">Unit</th>
+              <th className="px-4 py-2 font-medium text-right">Line total</th>
+              {canReceive ? (
+                <th className="px-4 py-2 font-medium text-right">Receive +</th>
+              ) : null}
+            </tr>
+          </thead>
+          <tbody>
+            {lines.map((l) => {
+              const effectiveCost = l.unitCost ?? l.fastener.unitCost ?? null;
+              const lineTotal = effectiveCost !== null ? effectiveCost * l.qty : null;
+              const remaining = l.qty - l.receivedQty;
+              const full = remaining === 0;
+              return (
+                <tr key={l.id} className="border-b border-slate-100 last:border-0">
+                  <td className="px-4 py-3 font-mono text-slate-700">
+                    {l.fastener.partNumber}
+                  </td>
+                  <td className="px-4 py-3">
+                    <div className="font-medium">{l.fastener.description}</div>
+                    {l.fastener.supplier ? (
+                      <div className="text-xs text-slate-500">{l.fastener.supplier}</div>
+                    ) : null}
+                  </td>
+                  <td className="px-4 py-3 text-right tabular-nums">{l.qty}</td>
+                  <td className="px-4 py-3 text-right tabular-nums">
+                    {l.receivedQty}
+                    {full && l.receivedQty > 0 ? (
+                      <Badge tone="green" className="ml-1">
+                        full
+                      </Badge>
+                    ) : null}
+                  </td>
+                  <td className="px-4 py-3 text-right tabular-nums">
+                    {effectiveCost !== null ? effectiveCost.toFixed(2) : "—"}
+                  </td>
+                  <td className="px-4 py-3 text-right tabular-nums">
+                    {lineTotal !== null ? lineTotal.toFixed(2) : "—"}
+                  </td>
+                  {canReceive ? (
+                    <td className="px-4 py-3 text-right">
+                      <Input
+                        type="number"
+                        min={0}
+                        max={remaining}
+                        value={receipts[l.id] ?? ""}
+                        onChange={(e) =>
+                          setReceipts((prev) => ({ ...prev, [l.id]: e.target.value }))
+                        }
+                        placeholder={remaining.toString()}
+                        className="w-20 text-right"
+                        disabled={full || busy}
+                      />
+                    </td>
+                  ) : null}
+                </tr>
+              );
+            })}
+          </tbody>
+          <tfoot className="bg-slate-50 border-t border-slate-200">
+            <tr>
+              <td className="px-4 py-3" colSpan={2}>
+                <span className="text-slate-500 text-xs uppercase tracking-wide">Totals</span>
+              </td>
+              <td className="px-4 py-3 text-right tabular-nums font-medium">{totalQty}</td>
+              <td className="px-4 py-3 text-right tabular-nums font-medium">{totalReceived}</td>
+              <td></td>
+              <td className="px-4 py-3 text-right tabular-nums font-medium">
+                {total > 0 ? total.toFixed(2) : "—"}
+              </td>
+              {canReceive ? <td></td> : null}
+            </tr>
+          </tfoot>
+        </table>
+      </Card>
+
+      {canReceive ? (
+        <div className="mt-4 flex justify-end">
+          <Button onClick={submitReceipts} disabled={busy}>
+            Record receipts
+          </Button>
+        </div>
+      ) : null}
+    </div>
+  );
+}

app/admin/projects/[id]/purchase-orders/[poId]/page.tsx

@@ -0,0 +1,60 @@
+import { notFound } from "next/navigation";
+import { prisma } from "@/lib/prisma";
+import POClient from "./POClient";
+
+export const dynamic = "force-dynamic";
+
+export default async function POPage({
+  params,
+}: {
+  params: Promise<{ id: string; poId: string }>;
+}) {
+  const { id: projectId, poId } = await params;
+  const project = await prisma.project.findUnique({
+    where: { id: projectId },
+    select: { id: true, code: true, name: true },
+  });
+  if (!project) notFound();
+
+  const po = await prisma.purchaseOrder.findUnique({
+    where: { id: poId },
+    include: {
+      lines: {
+        include: {
+          fastener: {
+            select: {
+              id: true,
+              partNumber: true,
+              description: true,
+              supplier: true,
+              unitCost: true,
+            },
+          },
+        },
+      },
+    },
+  });
+  if (!po || po.projectId !== projectId) notFound();
+
+  return (
+    <POClient
+      project={project}
+      po={{
+        id: po.id,
+        vendor: po.vendor,
+        status: po.status,
+        createdAt: po.createdAt.toISOString(),
+        sentAt: po.sentAt?.toISOString() ?? null,
+        receivedAt: po.receivedAt?.toISOString() ?? null,
+        notes: po.notes,
+      }}
+      lines={po.lines.map((l) => ({
+        id: l.id,
+        fastener: l.fastener,
+        qty: l.qty,
+        receivedQty: l.receivedQty,
+        unitCost: l.unitCost,
+      }))}
+    />
+  );
+}