import { Alert, Button, Card, Col, Descriptions, Input, Modal, Row, Select, Space, Statistic, Tag, Typography, message } from "antd";
import { EyeOutlined, ReloadOutlined, SearchOutlined } from "@ant-design/icons";
import { useEffect, useMemo, useState } from "react";
import PageContainer from "@/components/shared/PageContainer";
import ListTable from "@/components/shared/ListTable/ListTable";
import AppPagination from "@/components/shared/AppPagination";
import {
  getMeetingPointsLedgerDetail,
  getMeetingPointsLedgerPage,
  getMeetingPointsOverview,
  type MeetingPointsLedgerDetailVO,
  type MeetingPointsLedgerListItemVO,
  type MeetingPointsOverviewVO,
} from "@/api/business/meetingPoints";

const { Text } = Typography;

const POINTS_TYPE_OPTIONS = [
  { label: "全部类型", value: "" },
  { label: "转录", value: "ASR" },
  { label: "总结", value: "LLM" },
];

function getAccountModeLabel(mode?: string) {
  return mode === "PERSONAL" ? "个人账户" : "公共账户";
}

function getPointsTypeLabel(value?: string) {
  if (value === "ASR") {
    return "转录";
  }
  if (value === "LLM") {
    return "总结";
  }
  if (value === "INIT") {
    return "初始化";
  }
  if (value === "RECHARGE") {
    return "充值";
  }
  return value || "-";
}

function getPointsTypeColor(value?: string) {
  if (value === "ASR") {
    return "blue";
  }
  if (value === "LLM") {
    return "purple";
  }
  if (value === "RECHARGE") {
    return "green";
  }
  return "default";
}

function getChargeTriggerLabel(value?: string) {
  if (value === "RESUMMARY") {
    return "重新总结";
  }
  if (value === "AUTO_SUMMARY") {
    return "自动总结";
  }
  return "-";
}

function formatDateTime(value?: string) {
  return value ? value.replace("T", " ").substring(0, 19) : "-";
}

export default function MeetingPointsManagement() {
  const [overview, setOverview] = useState<MeetingPointsOverviewVO | null>(null);
  const [loading, setLoading] = useState(false);
  const [detailLoading, setDetailLoading] = useState(false);
  const [records, setRecords] = useState<MeetingPointsLedgerListItemVO[]>([]);
  const [total, setTotal] = useState(0);
  const [detailOpen, setDetailOpen] = useState(false);
  const [detail, setDetail] = useState<MeetingPointsLedgerDetailVO | null>(null);
  const [params, setParams] = useState({
    current: 1,
    size: 20,
    username: "",
    pointsType: "",
  });

  const loadOverview = async () => {
    const data = await getMeetingPointsOverview();
    setOverview(data);
  };

  const loadPage = async (nextParams = params) => {
    setLoading(true);
    try {
      const result = await getMeetingPointsLedgerPage(nextParams);
      setRecords(result.records || []);
      setTotal(result.total || 0);
    } finally {
      setLoading(false);
    }
  };

  useEffect(() => {
    void loadOverview();
    void loadPage();
  }, []);

  const handleSearch = () => {
    const nextParams = { ...params, current: 1 };
    setParams(nextParams);
    void loadPage(nextParams);
  };

  const handleReset = () => {
    const nextParams = {
      current: 1,
      size: 20,
      username: "",
      pointsType: "",
    };
    setParams(nextParams);
    void loadPage(nextParams);
  };

  const handleRefresh = async () => {
    await Promise.all([loadOverview(), loadPage()]);
    message.success("已刷新积分数据");
  };

  const handleOpenDetail = async (ledgerId: number) => {
    setDetailLoading(true);
    setDetailOpen(true);
    try {
      const data = await getMeetingPointsLedgerDetail(ledgerId);
      setDetail(data);
    } finally {
      setDetailLoading(false);
    }
  };

  const columns = useMemo(
    () => [
      {
        title: "用户名",
        dataIndex: "ownerUserName",
        key: "ownerUserName",
        width: 140,
        render: (value: string) => <Text strong>{value || "-"}</Text>,
      },
      {
        title: "消耗类型",
        dataIndex: "pointsType",
        key: "pointsType",
        width: 100,
        render: (value: string) => <Tag color={getPointsTypeColor(value)}>{getPointsTypeLabel(value)}</Tag>,
      },
      {
        title: "消耗积分",
        dataIndex: "consumedPoints",
        key: "consumedPoints",
        width: 110,
        render: (value: number) => <Text>{value ?? 0}</Text>,
      },
      {
        title: "会议标题",
        dataIndex: "meetingTitle",
        key: "meetingTitle",
        ellipsis: true,
        render: (value: string) => <Text>{value || "-"}</Text>,
      },
      {
        title: "触发类型",
        dataIndex: "chargeTriggerType",
        key: "chargeTriggerType",
        width: 130,
        render: (value: string) => <Tag>{getChargeTriggerLabel(value)}</Tag>,
      },
      {
        title: "消耗时间",
        dataIndex: "createdAt",
        key: "createdAt",
        width: 180,
        render: (value: string) => <Text>{formatDateTime(value)}</Text>,
      },
      {
        title: "操作",
        key: "action",
        width: 88,
        fixed: "right" as const,
        render: (_: unknown, record: MeetingPointsLedgerListItemVO) => (
          <Button type="text" size="small" icon={<EyeOutlined />} onClick={() => void handleOpenDetail(record.id)}>
            详情
          </Button>
        ),
      },
    ],
    [],
  );

  return (
    <PageContainer
      title="积分管理"
      subtitle="当前页面展示余额与消耗流水"
      headerExtra={
        <Space>
          {/*<Tag color="processing">当前结算模式：{getAccountModeLabel(overview?.accountMode)}</Tag>*/}
          <Button icon={<ReloadOutlined />} onClick={() => void handleRefresh()}>
            刷新
          </Button>
        </Space>
      }
      toolbar={
        <Space wrap size="middle">
          <Input
            placeholder="按用户名搜索"
            value={params.username}
            onChange={(event) => setParams((prev) => ({ ...prev, username: event.target.value }))}
            style={{ width: 220 }}
            prefix={<SearchOutlined className="text-gray-400" />}
            allowClear
          />
          <Select
            style={{ width: 140 }}
            value={params.pointsType}
            onChange={(value) => setParams((prev) => ({ ...prev, pointsType: value }))}
            options={POINTS_TYPE_OPTIONS}
          />
          <Button type="primary" icon={<SearchOutlined />} onClick={handleSearch}>
            查询
          </Button>
          <Button onClick={handleReset}>重置</Button>
        </Space>
      }
    >

      <Row gutter={[16, 16]} style={{ marginBottom: 16 }}>
        {/*<Col xs={24} md={6}>*/}
        {/*  <Card>*/}
        {/*    <Statistic title="当前结算账户" value={getAccountModeLabel(overview?.accountMode)} />*/}
        {/*  </Card>*/}
        {/*</Col>*/}
        <Col xs={24} md={6}>
          <Card>
            <Statistic title="剩余总积分" value={overview?.publicBalance ?? 0} />
          </Card>
        </Col>
        <Col xs={24} md={6}>
          <Card>
            <Statistic title="累计消耗总积分" value={overview?.publicTotalPointsUsed ?? 0} />
          </Card>
        </Col>
        <Col xs={24} md={6}>
          <Card>
            <Statistic title="累计消耗次数" value={overview?.totalChargeCount ?? 0} />
          </Card>
        </Col>
      </Row>

      <Card className="app-page__content-card" style={{ flex: 1, minHeight: 0 }} styles={{ body: { padding: 0, display: "flex", flexDirection: "column", minHeight: 0 } }}>
        <div className="app-page__table-wrap" style={{ flex: 1, minHeight: 0, overflow: "auto", padding: "0 24px" }}>
          <ListTable
            rowKey="id"
            columns={columns as any}
            dataSource={records}
            loading={loading}
            totalCount={total}
            scroll={{ y: "calc(100vh - 430px)", x: 1100 }}
            pagination={false}
          />
        </div>
        <AppPagination
          current={params.current}
          pageSize={params.size}
          total={total}
          onChange={(page, pageSize) => {
            const nextParams = { ...params, current: page, size: pageSize };
            setParams(nextParams);
            void loadPage(nextParams);
          }}
        />
      </Card>

      <Modal
        title="消耗详情"
        open={detailOpen}
        onCancel={() => {
          setDetailOpen(false);
          setDetail(null);
        }}
        footer={[
          <Button
            key="close"
            onClick={() => {
              setDetailOpen(false);
              setDetail(null);
            }}
          >
            关闭
          </Button>,
        ]}
        width={720}
        confirmLoading={detailLoading}
      >
        {detail && (
          <Descriptions bordered column={1} size="small">
            <Descriptions.Item label="用户名">{detail.ownerUserName || "-"}</Descriptions.Item>
            {/*<Descriptions.Item label="扣费账户">{getAccountModeLabel(detail.chargeAccountType)}</Descriptions.Item>*/}
            <Descriptions.Item label="消耗类型">{getPointsTypeLabel(detail.pointsType)}</Descriptions.Item>
            <Descriptions.Item label="消耗积分">{detail.consumedPoints ?? 0}</Descriptions.Item>
            <Descriptions.Item label="消耗时间">{formatDateTime(detail.createdAt)}</Descriptions.Item>
            <Descriptions.Item label="会议标题">{detail.meetingTitle || "-"}</Descriptions.Item>
            <Descriptions.Item label="触发类型">{getChargeTriggerLabel(detail.chargeTriggerType)}</Descriptions.Item>
            <Descriptions.Item label="录音时长（秒）">{detail.audioDurationSeconds ?? "-"}</Descriptions.Item>
            <Descriptions.Item label="计费分钟数">{detail.chargedMinutes ?? "-"}</Descriptions.Item>
            {/*<Descriptions.Item label="计费单位数">{detail.billingUnits ?? "-"}</Descriptions.Item>*/}
            {/*<Descriptions.Item label="单位分钟数">{detail.unitMinutesSnapshot ?? "-"}</Descriptions.Item>*/}
            {/*<Descriptions.Item label="单位价格">{detail.costPerUnitSnapshot ?? "-"}</Descriptions.Item>*/}
            {/*<Descriptions.Item label="应计总积分">{detail.totalPoints ?? 0}</Descriptions.Item>*/}
            {/*<Descriptions.Item label="已扣总积分">{detail.chargedTotalPoints ?? 0}</Descriptions.Item>*/}
            {/*<Descriptions.Item label="应计 ASR 积分">{detail.asrPoints ?? 0}</Descriptions.Item>*/}
            {/*<Descriptions.Item label="已扣 ASR 积分">{detail.chargedAsrPoints ?? 0}</Descriptions.Item>*/}
            {/*<Descriptions.Item label="应计 LLM 积分">{detail.llmPoints ?? 0}</Descriptions.Item>*/}
            {/*<Descriptions.Item label="已扣 LLM 积分">{detail.chargedLlmPoints ?? 0}</Descriptions.Item>*/}
            <Descriptions.Item label="扣费前余额">{detail.balanceBefore ?? "-"}</Descriptions.Item>
            <Descriptions.Item label="扣费后余额">{detail.balanceAfter ?? "-"}</Descriptions.Item>
            {/*<Descriptions.Item label="记录状态">{detail.summaryStatus || "-"}</Descriptions.Item>*/}
            {/*<Descriptions.Item label="失败原因">{detail.failureReason || "-"}</Descriptions.Item>*/}
          </Descriptions>
        )}
      </Modal>
    </PageContainer>
  );
}