<script lang="tsx">
import { message, Tooltip } from 'ant-design-vue';
import { BubbleList } from '@/components/xt-chat/xt-bubble';
import SenderInput from '../sender-input/index.vue';
import { Typography } from 'ant-design-vue';
import RightView from './rightView.vue';
import TextOverTips from '@/components/text-over-tips/index.vue';

import { useRoute } from 'vue-router';
import markdownit from 'markdown-it';
import { useClipboard } from '@vueuse/core';
import { genRandomId } from '@/utils/tools';
import { useChatStore } from '@/stores/modules/chat';
import { getHeaders } from '@/api/all/chat';
import { EventSourcePolyfill } from 'event-source-polyfill'; // 导入 event-source-polyfill
import type { BubbleListProps } from '@/components/xt-chat/xt-bubble/types';

const QUESTION_ROLE = 'question';
const ANSWER_ROLE = 'text';
const FILE_ROLE = 'file';
const THOUGHT_ROLE = 'thought'; // 新增思考过程角色常量

export default {
  setup(props, { emit, expose }) {
    const chatStore = useChatStore();

    const route = useRoute();
    const { copy } = useClipboard();

    const senderRef = ref(null);
    const eventSource = ref(null);
    const rightViewRef = ref(null);
    const bubbleListRef = ref<any>(null);
    const searchValue = ref('');
    const generateLoading = ref(false);
    const conversationList = ref([]);
    const currentAnswerId = ref<string | null>(null);

    const showRightView = ref(false);
    const rightViewContent = ref('');

    const md = markdownit({
      html: true,
      breaks: true,
      linkify: true,
      typographer: true,
    });

    const conversationId = computed(() => {
      return route.params.conversationId;
    });

    const onCopy = (content: string) => {
      copy(content);
      message.success('复制成功！');
    };

    const onRefresh = (tempId: string, tempIndex: number) => {
      generateLoading.value = true;
      conversationList.value.splice(tempIndex, 1, {
        id: tempId,
        loading: true,
        role: ANSWER_ROLE,
      });
    };

    const handleSubmit = () => {
      if (generateLoading.value) {
        message.warning('停止生成后可发送');
        return;
      }

      generateLoading.value = true;
      conversationList.value.push({
        role: QUESTION_ROLE,
        content: searchValue.value,
      });

      const tempId = genRandomId();
      const tempIndex = conversationList.value.length;
      conversationList.value.push({
        id: tempId,
        loading: true,
        role: ANSWER_ROLE,
      });
      currentAnswerId.value = tempId;

      initSse();
    };

    const handleCancel = () => {
      generateLoading.value = false;
      // 中止当前正在输出的回答
      if (currentAnswerId.value && bubbleListRef.value?.abortTypingByKey) {
        bubbleListRef.value.abortTypingByKey(currentAnswerId.value);
      }
      if (showRightView.value) {
        rightViewRef.value?.abortTyping?.();
      }
      message.info('取消生成');
    };

    const roles: BubbleListProps['roles'] = {
      [ANSWER_ROLE]: {
        placement: 'start',
        variant: 'borderless',
        typing: { step: 2, interval: 100 },
        onTypingComplete: () => {
          console.log('onTypingComplete');
          generateLoading.value = false;
          currentAnswerId.value = null;
        },
        style: {
          width: '600px',
          margin: '0 auto',
        },
      },
      [FILE_ROLE]: {
        placement: 'start',
        variant: 'borderless',
        typing: { step: 2, interval: 100 },
        messageRender: (items) => {
          return items.map((item) => (
            <div class="file-card">
              <icon-file class="w-17px h-20px mr-20px color-#6D4CFE" />
              <div>
                <TextOverTips
                  context={item.name}
                  class="font-family-medium color-#211F24 text-14px font-400 lh-22px mb-4px"
                />
                <span class="color-#939499 font-family-regular text-12px font-400 lh-22px">创建时间：08-04 12:40</span>
              </div>
            </div>
          ));
        },

        style: {
          width: '600px',
          margin: '0 auto',
        },
      },
      // 新增思考过程角色配置
      [THOUGHT_ROLE]: {
        placement: 'start',
        variant: 'borderless',
        style: {
          width: '600px',
          margin: '0 auto',
        },
      },
      [QUESTION_ROLE]: {
        placement: 'end',
        shape: 'round',
        style: {
          width: '600px',
          margin: '0 auto',
        },
      },
    };

    const onDownload = (content) => {
      console.log('onDownload', content);
    };

    const initSse = () => {
      // 先清理可能存在的旧连接
      if (eventSource.value) {
        eventSource.value.close();
        eventSource.value = null;
      }

      // 构建SSE连接URL
      const url = new URL('http://localhost:3000/agent/input');
      url.searchParams.append('content', searchValue.value || '测试');
      url.searchParams.append('session_id', conversationId.value as string);
      url.searchParams.append('agent_id', chatStore.agentInfo?.agent_id || '67890');

      try {
        eventSource.value = new EventSourcePolyfill(url.toString(), {
          headers: { ...getHeaders(), Accept: 'text/event-stream' },
        });

        searchValue.value = '';

        // 任务开始
        eventSource.value.addEventListener('start', function () {
          conversationList.value.push({
            role: ANSWER_ROLE,
            content: (
              <div class="flex items-center ">
                <span class="font-family-medium color-#211F24 text-14px font-400 lh-22px mr-4px">智能思考</span>
                <icon-caret-up size={16} class="color-#211F24" />
              </div>
            ),
          });
        });

        eventSource.value.addEventListener('node_update', function (event) {
          console.log('Node updated:', event.data);
          const data = JSON.parse(event.data);
          switch (data.status) {
            case 'running':
              conversationList.value.push({
                content: data.message,
                role: ANSWER_ROLE,
              });
              break;
            case 'success':
              conversationList.value.push({
                content: data.output,
                role: ANSWER_ROLE,
              });
              break;
          }
        });

        eventSource.value.addEventListener('final_result', function (event) {
          showRightView.value = true;
          const data = JSON.parse(event.data);
          const _files = data.output?.files;
          rightViewContent.value = _files[0]?.content || '';

          conversationList.value.push({
            id: currentAnswerId.value,
            role: FILE_ROLE,
            content: _files,
            footer: ({ item }) => {
              const nonQuestionElements = conversationList.value.filter((item) => item.role !== QUESTION_ROLE);
              const isLastAnswer = nonQuestionElements[nonQuestionElements.length - 1]?.id === item.id;

              return (
                <div class="flex items-center">
                  <Tooltip title="下载" onClick={() => onDownload(rightViewContent.value)}>
                    <icon-download size={16} class="color-#737478 cursor-pointer" />
                  </Tooltip>
                  {isLastAnswer && (
                    <Tooltip
                      title="重新生成"
                      onClick={() => onRefresh(currentAnswerId.value, conversationList.value.length)}
                    >
                      <icon-refresh size={16} class="color-#737478 cursor-pointer" />
                    </Tooltip>
                  )}
                </div>
              );
            },
          });
        });

        eventSource.value.addEventListener('end', function (event) {
          generateLoading.value = false;
          closeSse();
        });

        // 处理错误事件
        eventSource.value.onerror = function (error) {
          console.error('EventSource error:', error);
          generateLoading.value = false;
          message.error('连接服务器失败');
          closeSse();
        };
      } catch (error) {
        console.error('Failed to initialize SSE:', error);
        message.error('初始化连接失败');
        generateLoading.value = false;
      }
    };

    const closeSse = () => {
      if (eventSource.value) {
        eventSource.value.close();
        eventSource.value = null;
      }
      // 确保加载状态被重置
      generateLoading.value = false;
    };

    onMounted(() => {
      searchValue.value = chatStore.searchValue;
      chatStore.clearSearchValue();
      searchValue.value && initSse();
    });

    onUnmounted(() => {
      closeSse();
    });

    return () => (
      <div class="conversation-detail-wrap w-full h-full flex">
        <section class="flex-1 flex flex-col pt-20px justify-center relative px-16px">
          {/* <div class="w-full h-full  flex "> */}
          <div class="flex-1 overflow-hidden pb-20px">
            <BubbleList ref={bubbleListRef} roles={roles} items={conversationList.value} />
          </div>
          <div class="w-full flex flex-col justify-center items-center">
            <SenderInput
              class="w-600px"
              ref={senderRef}
              placeholder="继续追问..."
              loading={generateLoading.value}
              v-model={searchValue.value}
              onSubmit={handleSubmit}
              onCancel={handleCancel}
              data-ne="123"
            />
            <p class="cts !color-#939499 text-12px !lh-20px my-4px">内容由AI生成，仅供参考</p>
          </div>
          {/* </div> */}
        </section>

        {/* 右侧展示区域 */}
        {showRightView.value && (
          <RightView
            ref={rightViewRef}
            rightViewContent={rightViewContent.value}
            showRightView={showRightView.value}
            onClose={() => (showRightView.value = false)}
          />
        )}
      </div>
    );
  },
};
</script>

<style lang="scss" scoped>
@import './style.scss';
</style>
