Phase2: Invoicecomputation/AdminpricingUI/Ainvoicemgnt

src/app/api/admin/billing/skill-pricing/[skill]/route.ts

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+import { NextResponse } from "next/server";
+import { requirePlatformRole } from "@/lib/session";
+import { removeSkillPricing } from "@/lib/db";
+import { safeError } from "@/lib/errors";
+
+/**
+ * DELETE /api/admin/billing/skill-pricing/[skill]
+ * Remove pricing for a skill. Toggle events continue to be
+ * recorded; the skill simply becomes free starting from the next
+ * generated invoice. Historical invoices already issued are
+ * unaffected (they carry frozen line amounts).
+ */
+export async function DELETE(
+  _request: Request,
+  { params }: { params: Promise<{ skill: string }> }
+) {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  const { skill } = await params;
+  try {
+    await removeSkillPricing(skill);
+    return NextResponse.json({ message: "Removed." });
+  } catch (e) {
+    console.error("Failed to remove skill pricing:", e);
+    return NextResponse.json(
+      { error: safeError(e, "Remove failed") },
+      { status: 500 }
+    );
+  }
+}

src/app/api/admin/billing/skill-pricing/route.ts

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+import { NextResponse } from "next/server";
+import { z } from "zod";
+import { requirePlatformRole } from "@/lib/session";
+import { listSkillPricing, setSkillPricing } from "@/lib/db";
+import { getPackageDef } from "@/lib/packages";
+import { safeError } from "@/lib/errors";
+
+/**
+ * GET /api/admin/billing/skill-pricing
+ *   List all configured skill prices.
+ *
+ * PUT /api/admin/billing/skill-pricing
+ *   Upsert a daily price for a single skill. Body:
+ *     { skillId: string, dailyPriceChf: number }
+ *
+ * Both endpoints are platform-only.
+ *
+ * Note on skillId validation: we accept any package id that exists
+ * in PACKAGE_CATALOG. The PIN to "skills only" is enforced at the
+ * UI layer, not here, so admins can price a non-skill package in
+ * an emergency without code changes.
+ */
+
+const upsertSchema = z.object({
+  skillId: z.string().min(1).max(100),
+  dailyPriceChf: z.number().min(0).max(1_000_000),
+});
+
+export async function GET() {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  const rows = await listSkillPricing();
+  return NextResponse.json(rows);
+}
+
+export async function PUT(request: Request) {
+  try {
+    await requirePlatformRole();
+  } catch {
+    return NextResponse.json({ error: "Forbidden" }, { status: 403 });
+  }
+  const body = await request.json().catch(() => ({}));
+  const parsed = upsertSchema.safeParse(body);
+  if (!parsed.success) {
+    return NextResponse.json(
+      { error: "Invalid payload", details: parsed.error.flatten() },
+      { status: 400 }
+    );
+  }
+  // Validate the skill id exists in PACKAGE_CATALOG. Returns null
+  // for unknown ids; we reject those rather than persist a row that
+  // would never match a real toggle event.
+  const pkg = getPackageDef(parsed.data.skillId);
+  if (!pkg) {
+    return NextResponse.json(
+      { error: `Unknown package id: ${parsed.data.skillId}` },
+      { status: 400 }
+    );
+  }
+  try {
+    const row = await setSkillPricing(
+      parsed.data.skillId,
+      parsed.data.dailyPriceChf
+    );
+    return NextResponse.json(row);
+  } catch (e) {
+    console.error("Failed to upsert skill pricing:", e);
+    return NextResponse.json(
+      { error: safeError(e, "Upsert failed") },
+      { status: 500 }
+    );
+  }
+}