import type { PrismaClient } from "@capakraken/db";
import { emitAllocationUpdated } from "../sse/event-bus.js";
import { applyTimelineBatchAllocationShift } from "./timeline-allocation-shift-support.js";

export async function shiftTimelineAllocations(
  db: PrismaClient,
  input: Omit<Parameters<typeof applyTimelineBatchAllocationShift>[0], "db">,
) {
  const results = await applyTimelineBatchAllocationShift({
    db,
    allocationIds: input.allocationIds,
    daysDelta: input.daysDelta,
    mode: input.mode,
  });

  for (const allocation of results) {
    emitAllocationUpdated({
      id: allocation.id,
      projectId: allocation.projectId,
      resourceId: allocation.resourceId,
    });
  }

  return { count: results.length };
}