import { RefreshRounded, StorageOutlined } from "@mui/icons-material";
import {
  Box,
  Button,
  Dialog,
  DialogActions,
  DialogContent,
  DialogTitle,
  Divider,
  IconButton,
  LinearProgress,
  List,
  ListItem,
  ListItemText,
  Typography,
  alpha,
  styled,
} from "@mui/material";
import { useLockFn } from "ahooks";
import dayjs from "dayjs";
import { useState } from "react";
import { useTranslation } from "react-i18next";
import { updateProxyProvider } from "tauri-plugin-mihomo-api";

import { useAppData } from "@/providers/app-data-context";
import { showNotice } from "@/services/noticeService";
import parseTraffic from "@/utils/parse-traffic";

// 样式化组件 - 类型框
const TypeBox = styled(Box)<{ component?: React.ElementType }>(({ theme }) => ({
  display: "inline-block",
  border: "1px solid #ccc",
  borderColor: alpha(theme.palette.secondary.main, 0.5),
  color: alpha(theme.palette.secondary.main, 0.8),
  borderRadius: 4,
  fontSize: 10,
  marginRight: "4px",
  padding: "0 2px",
  lineHeight: 1.25,
}));

// 解析过期时间
const parseExpire = (expire?: number) => {
  if (!expire) return "-";
  return dayjs(expire * 1000).format("YYYY-MM-DD");
};

export const ProviderButton = () => {
  const { t } = useTranslation();
  const [open, setOpen] = useState(false);
  const { proxyProviders, refreshProxy, refreshProxyProviders } = useAppData();
  const [updating, setUpdating] = useState<Record<string, boolean>>({});

  // 检查是否有提供者
  const hasProviders = Object.keys(proxyProviders || {}).length > 0;

  // 更新单个代理提供者
  const updateProvider = useLockFn(async (name: string) => {
    try {
      // 设置更新状态
      setUpdating((prev) => ({ ...prev, [name]: true }));

      await updateProxyProvider(name);

      // 刷新数据
      await refreshProxy();
      await refreshProxyProviders();

      showNotice.success("components.providers.notices.updateSuccess", {
        name,
      });
    } catch (err) {
      showNotice.error("components.providers.notices.updateFailed", {
        name,
        message: String(err),
      });
    } finally {
      // 清除更新状态
      setUpdating((prev) => ({ ...prev, [name]: false }));
    }
  });

  // 更新所有代理提供者
  const updateAllProviders = useLockFn(async () => {
    try {
      // 获取所有provider的名称
      const allProviders = Object.keys(proxyProviders || {});
      if (allProviders.length === 0) {
        showNotice.info("components.providers.notices.none");
        return;
      }

      // 设置所有provider为更新中状态
      const newUpdating = allProviders.reduce(
        (acc, key) => {
          acc[key] = true;
          return acc;
        },
        {} as Record<string, boolean>,
      );
      setUpdating(newUpdating);

      // 改为串行逐个更新所有provider
      for (const name of allProviders) {
        try {
          await updateProxyProvider(name);
          // 每个更新完成后更新状态
          setUpdating((prev) => ({ ...prev, [name]: false }));
        } catch (err) {
          console.error(`更新 ${name} 失败`, err);
          // 继续执行下一个，不中断整体流程
        }
      }

      // 刷新数据
      await refreshProxy();
      await refreshProxyProviders();

      showNotice.success("components.providers.notices.allUpdated");
    } catch (err) {
      showNotice.error("components.providers.notices.genericError", {
        message: String(err),
      });
    } finally {
      // 清除所有更新状态
      setUpdating({});
    }
  });

  const handleClose = () => {
    setOpen(false);
  };

  if (!hasProviders) return null;

  return (
    <>
      <Button
        variant="outlined"
        size="small"
        startIcon={<StorageOutlined />}
        onClick={() => setOpen(true)}
        sx={{ mr: 1 }}
      >
        {t("pages.proxies.provider.title")}
      </Button>

      <Dialog open={open} onClose={handleClose} maxWidth="sm" fullWidth>
        <DialogTitle>
          <Box
            display="flex"
            justifyContent="space-between"
            alignItems="center"
          >
            <Typography variant="h6">
              {t("pages.proxies.provider.title")}
            </Typography>
            <Box>
              <Button
                variant="contained"
                size="small"
                onClick={updateAllProviders}
                aria-label={t("pages.proxies.provider.actions.updateAll")}
              >
                {t("pages.proxies.provider.actions.updateAll")}
              </Button>
            </Box>
          </Box>
        </DialogTitle>

        <DialogContent>
          <List sx={{ py: 0, minHeight: 250 }}>
            {Object.entries(proxyProviders || {})
              .sort()
              .map(([key, item]) => {
                const provider = item;
                const time = dayjs(provider.updatedAt);
                const isUpdating = updating[key];

                // 订阅信息
                const sub = provider.subscriptionInfo;
                const hasSubInfo = !!sub;
                const upload = sub?.Upload || 0;
                const download = sub?.Download || 0;
                const total = sub?.Total || 0;
                const expire = sub?.Expire || 0;

                // 流量使用进度
                const progress =
                  total > 0
                    ? Math.min(
                        Math.round(((download + upload) * 100) / total) + 1,
                        100,
                      )
                    : 0;

                return (
                  <ListItem
                    key={key}
                    sx={[
                      {
                        p: 0,
                        mb: "8px",
                        borderRadius: 2,
                        overflow: "hidden",
                        transition: "all 0.2s",
                      },
                      ({ palette: { mode, primary } }) => {
                        const bgcolor =
                          mode === "light" ? "#ffffff" : "#24252f";
                        const hoverColor =
                          mode === "light"
                            ? alpha(primary.main, 0.1)
                            : alpha(primary.main, 0.2);

                        return {
                          backgroundColor: bgcolor,
                          "&:hover": {
                            backgroundColor: hoverColor,
                          },
                        };
                      },
                    ]}
                  >
                    <ListItemText
                      sx={{ px: 2, py: 1 }}
                      primary={
                        <Box
                          sx={{
                            display: "flex",
                            justifyContent: "space-between",
                            alignItems: "center",
                          }}
                        >
                          <Typography
                            variant="subtitle1"
                            component="div"
                            noWrap
                            title={key}
                            sx={{ display: "flex", alignItems: "center" }}
                          >
                            <span style={{ marginRight: "8px" }}>{key}</span>
                            <TypeBox component="span">
                              {provider.proxies.length}
                            </TypeBox>
                            <TypeBox component="span">
                              {provider.vehicleType}
                            </TypeBox>
                          </Typography>

                          <Typography
                            variant="body2"
                            color="text.secondary"
                            noWrap
                          >
                            <small>{t("Update At")}: </small>
                            {time.fromNow()}
                          </Typography>
                        </Box>
                      }
                      secondary={
                        <>
                          {/* 订阅信息 */}
                          {hasSubInfo && (
                            <>
                              <Box
                                sx={{
                                  mb: 1,
                                  display: "flex",
                                  alignItems: "center",
                                  justifyContent: "space-between",
                                }}
                              >
                                <span title={t("Used / Total") as string}>
                                  {parseTraffic(upload + download)} /{" "}
                                  {parseTraffic(total)}
                                </span>
                                <span title={t("Expire Time") as string}>
                                  {parseExpire(expire)}
                                </span>
                              </Box>

                              {/* 进度条 */}
                              <LinearProgress
                                variant="determinate"
                                value={progress}
                                sx={{
                                  height: 6,
                                  borderRadius: 3,
                                  opacity: total > 0 ? 1 : 0,
                                }}
                              />
                            </>
                          )}
                        </>
                      }
                    />
                    <Divider orientation="vertical" flexItem />
                    <Box
                      sx={{
                        width: 40,
                        display: "flex",
                        justifyContent: "center",
                        alignItems: "center",
                      }}
                    >
                      <IconButton
                        size="small"
                        color="primary"
                        onClick={() => {
                          updateProvider(key);
                        }}
                        disabled={isUpdating}
                        sx={{
                          animation: isUpdating
                            ? "spin 1s linear infinite"
                            : "none",
                          "@keyframes spin": {
                            "0%": { transform: "rotate(0deg)" },
                            "100%": { transform: "rotate(360deg)" },
                          },
                        }}
                        title={t("pages.proxies.provider.actions.update")}
                        aria-label={t("pages.proxies.provider.actions.update")}
                      >
                        <RefreshRounded />
                      </IconButton>
                    </Box>
                  </ListItem>
                );
              })}
          </List>
        </DialogContent>

        <DialogActions>
          <Button onClick={handleClose} variant="outlined">
            {t("Close")}
          </Button>
        </DialogActions>
      </Dialog>
    </>
  );
};