<script setup lang="ts">
import type { BubbleListProps } from 'ant-design-x-vue';

import type { DrawerPlacement } from '@vben/common-ui';

import type { PPTTempItem } from './typing';

import { h, ref, watch } from 'vue';

import { useVbenDrawer } from '@vben/common-ui';

import { Card } from '@vben-core/shadcn-ui';

import { UserOutlined } from '@ant-design/icons-vue';
import { Button, Flex } from 'ant-design-vue';
import { Attachments, BubbleList, Sender } from 'ant-design-x-vue';

import PptPreview from './ppt-perview.vue';

interface WorkflowParams {
  appid: string;
}

interface WorkflowContext {
  userId: string;
  conversationId: string;
  files: unknown[];
  inputs: Record<string, unknown>;
}

interface WorkflowResult {
  data: {
    outputs: {
      result: string;
    };
  };
}

interface ResultItem {
  key: number;
  role: 'ai' | 'user';
  content: string;
  footer?: any;
}

interface Props {
  itemMessage?: ResultItem;
  item?: PPTTempItem;
  runWorkflow?: (
    params: WorkflowParams,
    context: WorkflowContext,
  ) => Promise<WorkflowResult>;
}

defineOptions({
  name: 'SpiderWorkView',
});

const props = withDefaults(defineProps<Props>(), {
  itemMessage: () => null,
  item: () => null,
  runWorkflow: () => async () => ({
    data: {
      outputs: {
        result: '',
      },
    },
  }),
});

const [PreviewDrawer, previewDrawerApi] = useVbenDrawer({
  // 连接抽离的组件
  connectedComponent: PptPreview,
  // placement: 'left',
});

function openPreviewDrawer(
  placement: DrawerPlacement = 'right',
  filename?: string,
) {
  const fileData = filename.value;
  previewDrawerApi.setState({ placement }).setData(fileData).open();
}

// 判断是否是以 .pptx 结尾的 URL
function isPptxURL(str: string): boolean {
  return str.endsWith('.pptx');
}

// 使用正则提取 /static/ 后面的文件名部分
function extractPptxFilename(url: string): null | string {
  const match = url.match(/\/static\/([a-f0-9-]+\.pptx)$/i);
  if (match) {
    return match[1]; // 返回类似：9e1c421e-991c-411f-8176-6350a97e70f3.pptx
  }
  return null;
}

const startFetching = async () => {
  isFetching.value = true;
  fetchStatus.value = 'fetching';

  try {
    const res = await props.runWorkflow(
      {
        appid: 'ee3889b6-50fa-463e-b956-3b93447727fc',
      },
      {
        userId: '1562',
        conversationId: '',
        files: [],
        inputs: {
          declarationDoc: value.value,
        },
      },
    );
    const { result } = res.data.outputs;

    const filename = ref('');

    if (result && isPptxURL(result)) {
      filename.value = extractPptxFilename(result);
    }

    // 保存抓取结果 url http://47.112.173.8:6802/static/66f3cfd95e364a239d8036390db658ae.pptx
    fetchResult.value = `/static/${filename.value}`;
    resultItems.value.push({
      key: resultItems.value.length + 1,
      role: 'ai',
      content: '文档已生成',
      footer: h(Flex, null, [
        h(
          Button,
          {
            size: 'nomarl',
            type: 'primary',
            onClick: () => {
              openPreviewDrawer('right', filename);
            },
          },
          '文档预览',
        ),
        h(
          Button,
          {
            size: 'nomarl',
            type: 'primary',
            style: {
              marginLeft: '10px',
            },
            onClick: () => {
              // 创建隐藏的 <a> 标签用于触发下载
              const link = document.createElement('a');
              link.href = result; // 设置下载链接
              link.download = filename; // 设置下载文件名
              document.body.append(link); // 将 <a> 标签添加到页面中
              link.click(); // 触发点击事件开始下载
              link.remove(); // 下载完成后移除 <a> 标签
            },
          },
          '文档下载',
        ),
      ]),
    });
    value.value = '';
  } catch (error) {
    console.error(error);
  }

  // 模拟抓取完成
  isFetching.value = false;
  fetchStatus.value = 'completed';
};

const roles: BubbleListProps['roles'] = {
  user: {
    placement: 'end',
    typing: false,
    avatar: { icon: h(UserOutlined), style: { background: '#87d068' } },
  },
  ai: {
    placement: 'start',
    typing: false,
    style: {
      maxWidth: 600,
      marginInlineEnd: 44,
    },
    styles: {
      footer: {
        width: '100%',
      },
    },
    avatar: { icon: h(UserOutlined), style: { background: '#fde3cf' } },
  },
  file: {
    placement: 'start',
    avatar: { icon: h(UserOutlined), style: { visibility: 'hidden' } },
    variant: 'borderless',
    messageRender: (items: any) =>
      h(
        Flex,
        { vertical: true, gap: 'middle' },
        items.map((item: any) =>
          h(Attachments.FileCard, { key: item.uid, item }),
        ),
      ),
  },
};

const isFetching = ref(false);
const fetchResult = ref('');
const fetchStatus = ref('');
const value = ref('');

const resultItems = ref<ResultItem[]>([]);

// 监听 itemMessage 变化并更新 resultItems
watch(
  () => props.itemMessage,
  (newVal) => {
    resultItems.value = [];
    if (newVal && newVal.length > 0) {
      newVal.forEach((msg) => {
        // resultItems.value.push({
        //   key: resultItems.value.length + 1,
        //   role: msg.role, // 'user' or 'ai'
        //   content: msg.content,
        //   footer: msg.footer,
        // });
        if (msg.role === 'user') {
          resultItems.value.push({
            key: resultItems.value.length + 1,
            role: msg.role, // 'user' or 'ai'
            content: msg.content,
            footer: msg.footer,
          });
        } else {
          const filename = ref('');

          if (msg.content && isPptxURL(msg.content)) {
            filename.value = extractPptxFilename(msg.content);
          }
          resultItems.value.push({
            key: resultItems.value.length + 1,
            role: msg.role, // 'user' or 'ai'
            content: '文档已生成',
            footer: h(Flex, null, [
              h(
                Button,
                {
                  size: 'nomarl',
                  type: 'primary',
                  onClick: () => {
                    openPreviewDrawer('right', filename);
                  },
                },
                '文档预览',
              ),
              h(
                Button,
                {
                  size: 'nomarl',
                  type: 'primary',
                  style: {
                    marginLeft: '10px',
                  },
                  onClick: () => {
                    // 创建隐藏的 <a> 标签用于触发下载
                    const link = document.createElement('a');
                    link.href = msg.content; // 设置下载链接
                    link.download = filename; // 设置下载文件名
                    document.body.append(link); // 将 <a> 标签添加到页面中
                    link.click(); // 触发点击事件开始下载
                    link.remove(); // 下载完成后移除 <a> 标签
                  },
                },
                '文档下载',
              ),
            ]),
          });
        }
      });
    }
  },
  { deep: true },
);
</script>

<template>
  <PreviewDrawer />
  <div class="flex h-[765px] flex-col">
    <div class="flex-1 overflow-y-auto">
      <div style="margin: 20px; overflow-y: auto">
        <BubbleList :auto-scroll="true" :roles="roles" :items="resultItems" />
      </div>
    </div>
    <Card class="w-full">
      <Sender
        v-model:value="value"
        :loading="isFetching"
        :auto-size="{ minRows: 6, maxRows: 12 }"
        @submit="startFetching"
      />
    </Card>
  </div>
</template>
