<template>
  <div class="review">
    <div class="review-head">
      <h2 v-if="reviewStore.curTask" class="review-title">
        {{ reviewStore.curTask.examNumber }} - {{ reviewStore.curTask.name }} -
        CET4
      </h2>

      <div class="review-stat">
        <p class="color-success">
          <CheckCircleFilled />已处理：{{ progress.finishCount }}
        </p>
        <p class="color-error">
          <CloseCircleFilled />未处理：{{ progress.todoCount }}
        </p>
      </div>

      <div class="review-prev">
        <a-button v-if="reviewStore.tabKey === 'review'" :disabled="loading">
          <template #icon><ArrowLeftOutlined /></template> 上一个
        </a-button>
      </div>
    </div>

    <!-- body -->
    <div class="review-body">
      <ReviewImage />

      <!-- ReviewMarkPan -->
      <ReviewMarkPan
        v-if="reviewStore.curTask"
        :task-info="{
          examNumber: reviewStore.curTask.examNumber,
          name: reviewStore.curTask.name,
        }"
        @mark="onMark"
      />
    </div>

    <!-- action -->
    <ReviewAction @mark="onMark" @reset="onReset" @search="onSearch" />

    <!-- reset confirm -->
    <ResetConfirmDialog
      ref="resetConfirmDialogRef"
      :subject="resetSubject"
      @confirm="onResetConfirm"
    />
  </div>
</template>

<script setup lang="ts">
import { computed, ref, reactive, onMounted, watch } from "vue";
import {
  CheckCircleFilled,
  CloseCircleFilled,
  ArrowLeftOutlined,
} from "@ant-design/icons-vue";
import { message } from "ant-design-vue";

import {
  reviewTaskList,
  reviewTaskReset,
  reviewTaskSave,
  reviewProgress,
} from "@/ap/review";
import { ReviewTaskListItem } from "@/ap/types/review";
import { SubjectItem } from "@/ap/types/base";

import { useUserStore, useReviewStore } from "@/store";
import useLoading from "@/hooks/useLoading";

import ReviewAction from "./ReviewAction.vue";
import ReviewImage from "./ReviewImage.vue";
import ResetConfirmDialog from "./ResetConfirmDialog.vue";
import ReviewMarkPan from "./ReviewMarkPan.vue";

const userStore = useUserStore();
const reviewStore = useReviewStore();

defineOptions({
  name: "review",
});

// 任务进度
const progress = ref({
  finishCount: 0,
  todoCount: 0,
});
async function updateProgress() {
  const res = await reviewProgress({ examId: userStore.curExam.id });
  progress.value = res || {};
}

// 任务相关
const searchModel = reactive({
  examId: userStore.curExam.id,
  subjectCode: "",
});

const { loading, setLoading } = useLoading();
const dataList = ref<ReviewTaskListItem[]>([]);
const curTaskIndex = ref(0);

async function getTasks() {
  // TODO:假设一次取3个
  const res = await reviewTaskList(searchModel);
  dataList.value = res || [];
}

function setCurTask() {
  reviewStore.setInfo({ curTask: dataList.value[curTaskIndex.value] });
}

async function getNextTask() {
  if (curTaskIndex.value >= dataList.value.length - 1) {
    await getTasks();
    if (!dataList.value.length) {
      message.error("没有下一个了！");
      reviewStore.setInfo({ curTask: null });
      return;
    }
    curTaskIndex.value = 0;
    setCurTask();
    return;
  }

  curTaskIndex.value++;
  setCurTask();
}

async function getPrevTask() {
  if (loading.value) return;
  loading.value = true;

  if (curTaskIndex.value <= 0) {
    let result = true;
    await getTasks().catch(() => {
      result = false;
    });
    if (!result) return;

    loading.value = false;
    if (!dataList.value.length) {
      message.error("没有上一个了！");
      reviewStore.setInfo({ curTask: null });
      return;
    }
    curTaskIndex.value = dataList.value.length - 1;
    setCurTask();
    return;
  }

  curTaskIndex.value--;
  setCurTask();
}

// actions
async function onMark(result: boolean) {
  if (!reviewStore.curTask) return;

  if (loading.value) return;
  loading.value = true;

  try {
    await reviewTaskSave({ id: reviewStore.curTask.id, result });
    reviewStore.setInfo({
      curTask: Object.assign({}, reviewStore.curTask, {
        markStatus: result,
      }),
    });

    if (reviewStore.tabKey === "history") return;

    await getNextTask();
  } catch (error) {
    loading.value = false;
  }
}

async function onSearch(subjectCode: string) {
  searchModel.subjectCode = subjectCode;
  await getTasks();

  curTaskIndex.value = 0;
  setCurTask();
}

const resetConfirmDialogRef = ref();
const resetSubject = ref<SubjectItem | null>(null);
async function onReset(data: SubjectItem | null) {
  resetSubject.value = data;
  resetConfirmDialogRef.value?.open();
}

function onResetConfirm() {
  onSearch("");
}

// watch
watch(
  () => reviewStore.tabKey,
  (val) => {
    if (val === "review") {
      reviewStore.setInfo({
        curTask: dataList.value[curTaskIndex.value] || null,
      });
    }
  }
);

onMounted(() => {
  // test
  dataList.value = [
    {
      id: 1,
      name: "考生2",
      studentCode: "360080241304012",
      subjectCode: "SX0001",
      subjectName: "数学",
      examNumber: "360080241304012",
      markStatus: false,
      breachCount: 1,
      pages: [
        {
          index: 1,
          uri: "",
        },
        {
          index: 2,
          uri: "",
        },
      ],
    },
  ];
  reviewStore.setInfo({
    curTask: dataList.value[curTaskIndex.value] || null,
    tabKey: "review",
  });
});
</script>
