kandev/apps/web/hooks/use-task-workflow-move.ts

"use client";

import { useCallback } from "react";
import { bulkMoveSelectedTasks } from "@/lib/api";
import { useToast } from "@/components/toast-provider";

function errorMessage(error: unknown) {
  return error instanceof Error ? error.message : "Failed to move task";
}

function movedTitle(movedCount: number, destination: "step" | "workflow") {
  if (movedCount === 1) return `Moved task to ${destination}`;
  return `Moved ${movedCount} tasks to ${destination}`;
}

function movedDescription(movedCount: number, destination: "step" | "workflow") {
  if (destination === "step") {
    return movedCount === 1
      ? "The task is now in the selected step."
      : "The tasks are now in the selected step.";
  }
  return movedCount === 1
    ? "Switch to the destination workflow to see it."
    : "Switch to the destination workflow to see them.";
}

export function useTaskWorkflowMove() {
  const { toast } = useToast();

  return useCallback(
    async (
      taskIds: string[],
      targetWorkflowId: string,
      targetStepId: string,
      destination: "step" | "workflow" = "workflow",
    ) => {
      const ids = [...new Set(taskIds.filter(Boolean))];
      if (ids.length === 0) return;
      try {
        const result = await bulkMoveSelectedTasks({
          task_ids: ids,
          target_workflow_id: targetWorkflowId,
          target_step_id: targetStepId,
        });
        toast({
          title: movedTitle(result.moved_count, destination),
          description: movedDescription(result.moved_count, destination),
          variant: "success",
        });
      } catch (error) {
        toast({
          title: "Failed to move task",
          description: errorMessage(error),
          variant: "error",
        });
        throw error;
      }
    },
    [toast],
  );
}