refactor(api): extract timeline allocation mutation support

2026-03-31 15:06:38 +02:00
parent b05758db69
commit b1ada431e1
3 changed files with 265 additions and 77 deletions
@@ -0,0 +1,101 @@
+import { TRPCError } from "@trpc/server";
+import { describe, expect, it } from "vitest";
+import {
+  assertTimelineDateRangeValid,
+  buildTimelineAllocationMetadata,
+  buildTimelineBatchShiftAuditChanges,
+  buildTimelineQuickAssignMetadata,
+  calculateTimelineAllocationPercentage,
+  shiftTimelineAllocationWindow,
+} from "../router/timeline-allocation-mutation-support.js";
+
+describe("timeline allocation mutation support", () => {
+  it("preserves existing metadata while updating includeSaturday", () => {
+    const result = buildTimelineAllocationMetadata({
+      existingMetadata: {
+        recurrence: { frequency: "weekly", interval: 2 },
+        includeSaturday: false,
+      },
+      includeSaturday: true,
+    });
+
+    expect(result).toEqual({
+      metadata: {
+        recurrence: { frequency: "weekly", interval: 2 },
+        includeSaturday: true,
+      },
+      includeSaturday: true,
+    });
+  });
+
+  it("rejects inverted date ranges", () => {
+    expect(() =>
+      assertTimelineDateRangeValid(
+        new Date("2026-04-10T00:00:00.000Z"),
+        new Date("2026-04-09T00:00:00.000Z"),
+      )).toThrowError(TRPCError);
+  });
+
+  it("rounds allocation percentages and clamps them to 100", () => {
+    expect(calculateTimelineAllocationPercentage(3.9)).toBe(49);
+    expect(calculateTimelineAllocationPercentage(9)).toBe(100);
+  });
+
+  it("builds source metadata for quick assign operations", () => {
+    expect(buildTimelineQuickAssignMetadata("quickAssign")).toEqual({ source: "quickAssign" });
+    expect(buildTimelineQuickAssignMetadata("batchQuickAssign")).toEqual({ source: "batchQuickAssign" });
+  });
+
+  it("shifts and clamps allocation windows for each batch-shift mode", () => {
+    expect(
+      shiftTimelineAllocationWindow({
+        startDate: new Date("2026-04-10T00:00:00.000Z"),
+        endDate: new Date("2026-04-12T00:00:00.000Z"),
+        daysDelta: 2,
+        mode: "move",
+      }),
+    ).toEqual({
+      startDate: new Date("2026-04-12T00:00:00.000Z"),
+      endDate: new Date("2026-04-14T00:00:00.000Z"),
+    });
+
+    expect(
+      shiftTimelineAllocationWindow({
+        startDate: new Date("2026-04-10T00:00:00.000Z"),
+        endDate: new Date("2026-04-12T00:00:00.000Z"),
+        daysDelta: 5,
+        mode: "resize-start",
+      }),
+    ).toEqual({
+      startDate: new Date("2026-04-12T00:00:00.000Z"),
+      endDate: new Date("2026-04-12T00:00:00.000Z"),
+    });
+
+    expect(
+      shiftTimelineAllocationWindow({
+        startDate: new Date("2026-04-10T00:00:00.000Z"),
+        endDate: new Date("2026-04-12T00:00:00.000Z"),
+        daysDelta: -5,
+        mode: "resize-end",
+      }),
+    ).toEqual({
+      startDate: new Date("2026-04-10T00:00:00.000Z"),
+      endDate: new Date("2026-04-10T00:00:00.000Z"),
+    });
+  });
+
+  it("builds batch-shift audit payloads", () => {
+    expect(
+      buildTimelineBatchShiftAuditChanges({
+        mode: "move",
+        daysDelta: 3,
+        count: 2,
+      }),
+    ).toEqual({
+      operation: "batchShift",
+      mode: "move",
+      daysDelta: 3,
+      count: 2,
+    });
+  });
+});