refactor(api): extract timeline project budget mapping

packages/api/src/router/timeline-project-context-support.ts

@@ -1,4 +1,5 @@
 import { TRPCError } from "@trpc/server";
+import type { Allocation } from "@capakraken/shared";
 import { summarizeHolidayOverlays, type formatHolidayOverlays } from "./timeline-holiday-read.js";
 import {
   anonymizeResourceOnEntry,
@@ -162,6 +163,79 @@ export function buildTimelineProjectContextSummary(input: {
   };
 }
 
+export function buildTimelineShiftValidationBookings(
+  bookings: Array<{
+    id: string;
+    resourceId: string | null;
+    projectId: string | null;
+    startDate: Date;
+    endDate: Date;
+    hoursPerDay: number;
+    status: string;
+  }>,
+) {
+  return bookings
+    .filter(
+      (
+        booking,
+      ): booking is typeof booking & { resourceId: string; projectId: string } =>
+        booking.resourceId !== null && booking.projectId !== null,
+    )
+    .map((booking) => ({
+      id: booking.id,
+      resourceId: booking.resourceId,
+      projectId: booking.projectId,
+      startDate: booking.startDate,
+      endDate: booking.endDate,
+      hoursPerDay: booking.hoursPerDay,
+      status: booking.status,
+    }));
+}
+
+export function buildTimelineBudgetStatusAllocations(
+  bookings: Array<{
+    status: string;
+    dailyCostCents: number;
+    startDate: Date;
+    endDate: Date;
+    hoursPerDay: number;
+  }>,
+): Pick<
+  Allocation,
+  "status" | "dailyCostCents" | "startDate" | "endDate" | "hoursPerDay"
+>[] {
+  return bookings.map((booking) => ({
+    status: booking.status as Allocation["status"],
+    dailyCostCents: booking.dailyCostCents,
+    startDate: booking.startDate,
+    endDate: booking.endDate,
+    hoursPerDay: booking.hoursPerDay,
+  }));
+}
+
+export function buildTimelineBudgetStatusResponse<TBudgetStatus extends object>(input: {
+  project: {
+    name: string;
+    shortCode: string | null;
+    budgetCents: number;
+  };
+  budgetStatus: TBudgetStatus;
+  totalAllocations: number;
+}): TBudgetStatus & {
+  projectName: string;
+  projectCode: string;
+  totalAllocations: number;
+  budgetCents: number;
+} {
+  return {
+    ...input.budgetStatus,
+    projectName: input.project.name,
+    projectCode: input.project.shortCode ?? "",
+    totalAllocations: input.totalAllocations,
+    budgetCents: input.project.budgetCents,
+  };
+}
+
 export function buildTimelineProjectContextResponse<
   TProject,
   TAllocation extends { resource?: { id: string } | null },