import { useDataCheckStore, useAppStore } from "@/store";
import { StudentPage, TaskItem } from "./types";

export default function useTask() {
  const dataCheckStore = useDataCheckStore();

  function updatePageTasks(curPage: StudentPage) {
    if (!curPage || !dataCheckStore.curStudent) {
      dataCheckStore.setInfo({
        taskList: [],
        curTask: null,
      });
      return;
    }

    const taskList = [] as TaskItem[];
    const examNumber = dataCheckStore.curStudent.examNumber;
    if (!checkExamNumber(examNumber)) {
      taskList.push({
        id: `examNumber_${curPage.studentId}`,
        type: "examNumber",
        questionIndex: 0,
        paperIndex: 0,
        pageIndex: 0,
        studentId: curPage.studentId,
        finished: false,
      });
    }

    curPage.question?.result.map((item, index) => {
      if (checkQuestionError(item)) {
        taskList.push({
          id: `question_${curPage.studentId}_${curPage.paperIndex}_${curPage.pageIndex}_${index}`,
          type: "question",
          questionIndex: index,
          paperIndex: curPage.paperIndex,
          pageIndex: curPage.pageIndex,
          studentId: curPage.studentId,
          finished: false,
        });
      }
    });

    dataCheckStore.setInfo({
      taskList,
      curTask: taskList[0],
    });
    if (taskList.length === 0) {
      dataCheckStore.curStudent.checked = true;
    }
  }

  function updateNextUnfinishTask() {
    const task = dataCheckStore.taskList.find((item) => !item.finished);
    dataCheckStore.curTask = task || null;
  }

  function taskFinisheHandle() {
    const curTask = dataCheckStore.curTask;
    if (!curTask) {
      return;
    }
    curTask.finished = true;
    updateNextUnfinishTask();
  }

  function checkExamNumber(examNumber: string) {
    if (!examNumber) return false;
    return /^\d{15}$/.test(examNumber);
  }

  function checkQuestionError(cont: string) {
    if (!cont || cont.length > 1 || cont.includes("#")) return true;
    return false;
  }

  function checkPageFinished(questions: string[], examNumber: string) {
    if (!questions.length || !examNumber) return false;

    const examNumberFinished = checkExamNumber(examNumber);
    if (!examNumberFinished) return false;

    const questionFinished = !questions.some((item) =>
      checkQuestionError(item)
    );
    return questionFinished;
  }

  return {
    updatePageTasks,
    updateNextUnfinishTask,
    taskFinisheHandle,
    checkExamNumber,
    checkQuestionError,
    checkPageFinished,
  };
}