tasks.ts

type Task = {
  name: string;
  time: number;
  event: "start" | "end";
};

function calculateExecutionTimes(tasks: Task[]) {
  const initialTaskMap: { [name: string]: { start: number; end: number } } = {};
  const groupedTasks = tasks.reduce((acc, curr) => {
    const currValue = acc[curr.name] || {};
    if (curr.event == "start") {
      return { ...acc, [curr.name]: { ...currValue, start: curr.time } };
    } else {
      return { ...acc, [curr.name]: { ...currValue, end: curr.time } };
    }
  }, initialTaskMap);

  const taskValues = Object.keys(groupedTasks).map((task) => {
    const timeTaken = groupedTasks[task];
    return { [task]: timeTaken.end - timeTaken.start };
  });
  return taskValues;
}