import { useCheckObjectiveStore } from "@/store";
import { saveStudentObjectiveConfirmData } from "@/api/checkPage";
import { message } from "ant-design-vue";
import { useStudent } from "../useStudent";

export default function useAnswer() {
  const checkObjectiveStore = useCheckObjectiveStore();
  const { updateCurStudent, getNextStudent } = useStudent();

  // 修改答案
  const allowKey = [
    "Delete",
    "Backspace",
    "ArrowLeft",
    "ArrowRight",
    "#",
    "Shift",
    "[A-Za-z]",
  ];
  const allowKeyRef = new RegExp(allowKey.join("|"));
  function onPreventAnswerKey(e: KeyboardEvent) {
    if (!allowKeyRef.test(e.key)) {
      e.preventDefault();
    }
  }

  function changeAnswer(event: Event, question: string, defaultValue?: string) {
    const target = event.target as HTMLInputElement;
    checkObjectiveStore.student.answers =
      checkObjectiveStore.student.answers.map((v) => {
        if (
          v.mainNumber === question.mainNumber &&
          v.subNumber === question.subNumber
        ) {
          v.answer = target?.value.toUpperCase().trim() || defaultValue || "";
        }
        return v;
      });
  }

  // 保存答案
  let loading = false;
  async function saveStudentAnswer() {
    if (!checkObjectiveStore.student) return;

    if (loading) return;
    loading = true;

    const data = {
      studentId: checkObjectiveStore.student.studentId,
      answers: checkObjectiveStore.student.answers
        .map((v) => v.answer || "#")
        .join(","),
    };
    // if (!answers.match(/^(#*,*[A-Z]*)+$/g)) {
    //   void message.error("答案只能是#和大写英文字母");
    //   return;
    // }

    const res = await saveStudentObjectiveConfirmData(data).catch(() => false);
    loading = false;
    if (!res) {
      void message.error("保存失败，请刷新页面。");
    } else {
      void message.success("保存成功");

      if (!checkObjectiveStore.isMultiStudent) {
        window.close();
        return;
      }

      if (checkObjectiveStore.isLast) {
        await updateCurStudent();
      } else {
        await getNextStudent();
      }
    }
  }

  return {
    onPreventAnswerKey,
    changeAnswer,
    saveStudentAnswer,
  };
}