refactor(web): extract project drag helpers

2026-04-01 10:06:32 +02:00
parent c32f56ba89
commit 892a9c5ccf
5 changed files with 200 additions and 32 deletions
@@ -0,0 +1,60 @@
+type ProjectDragStateLike = {
+  isDragging: boolean;
+  projectId: string | null;
+  projectName: string | null;
+  allocationId: string | null;
+  originalStartDate: Date | null;
+  originalEndDate: Date | null;
+  currentStartDate: Date | null;
+  currentEndDate: Date | null;
+  startMouseX: number;
+  pointerDeltaX: number;
+  originalLeft: number;
+  blockWidth: number;
+  daysDelta: number;
+};
+
+type CreateProjectDragStateInput = {
+  projectId: string;
+  projectName: string;
+  allocationId?: string | null;
+  startDate: Date;
+  endDate: Date;
+  startMouseX: number;
+  originalLeft?: number;
+  blockWidth?: number;
+};
+
+export function createProjectDragState<TState extends ProjectDragStateLike>(
+  input: CreateProjectDragStateInput,
+): TState {
+  return {
+    isDragging: true,
+    projectId: input.projectId,
+    projectName: input.projectName,
+    allocationId: input.allocationId ?? null,
+    originalStartDate: input.startDate,
+    originalEndDate: input.endDate,
+    currentStartDate: input.startDate,
+    currentEndDate: input.endDate,
+    startMouseX: input.startMouseX,
+    pointerDeltaX: 0,
+    originalLeft: input.originalLeft ?? 0,
+    blockWidth: input.blockWidth ?? 0,
+    daysDelta: 0,
+  } as TState;
+}
+
+export function buildProjectShiftMutationInput(
+  drag: Pick<ProjectDragStateLike, "daysDelta" | "projectId" | "currentStartDate" | "currentEndDate">,
+): { projectId: string; newStartDate: Date; newEndDate: Date } | null {
+  if (drag.daysDelta === 0 || !drag.projectId || !drag.currentStartDate || !drag.currentEndDate) {
+    return null;
+  }
+
+  return {
+    projectId: drag.projectId,
+    newStartDate: drag.currentStartDate,
+    newEndDate: drag.currentEndDate,
+  };
+}