import { useMemo } from "react";
import { GripVertical } from "lucide-react";
import { useTranslation } from "react-i18next";
import type {
  DraggableAttributes,
  DraggableSyntheticListeners,
} from "@dnd-kit/core";
import type { Provider } from "@/types";
import type { AppId } from "@/lib/api";
import { cn } from "@/lib/utils";
import { ProviderActions } from "@/components/providers/ProviderActions";
import { ProviderIcon } from "@/components/ProviderIcon";
import UsageFooter from "@/components/UsageFooter";
import { ProviderHealthBadge } from "@/components/providers/ProviderHealthBadge";
import {
  useProviderHealth,
  useResetCircuitBreaker,
} from "@/lib/query/failover";
import { toast } from "sonner";

interface DragHandleProps {
  attributes: DraggableAttributes;
  listeners: DraggableSyntheticListeners;
  isDragging: boolean;
}

interface ProviderCardProps {
  provider: Provider;
  isCurrent: boolean;
  appId: AppId;
  onSwitch: (provider: Provider) => void;
  onEdit: (provider: Provider) => void;
  onDelete: (provider: Provider) => void;
  onConfigureUsage: (provider: Provider) => void;
  onOpenWebsite: (url: string) => void;
  onDuplicate: (provider: Provider) => void;
  onTest?: (provider: Provider) => void;
  isTesting?: boolean;
  isProxyRunning: boolean;
  isProxyTakeover?: boolean; // 代理接管模式（Live配置已被接管，切换为热切换）
  dragHandleProps?: DragHandleProps;
}

const extractApiUrl = (provider: Provider, fallbackText: string) => {
  // 优先级 1: 备注
  if (provider.notes?.trim()) {
    return provider.notes.trim();
  }

  // 优先级 2: 官网地址
  if (provider.websiteUrl) {
    return provider.websiteUrl;
  }

  // 优先级 3: 从配置中提取请求地址
  const config = provider.settingsConfig;

  if (config && typeof config === "object") {
    const envBase =
      (config as Record<string, any>)?.env?.ANTHROPIC_BASE_URL ||
      (config as Record<string, any>)?.env?.GOOGLE_GEMINI_BASE_URL;
    if (typeof envBase === "string" && envBase.trim()) {
      return envBase;
    }

    const baseUrl = (config as Record<string, any>)?.config;

    if (typeof baseUrl === "string" && baseUrl.includes("base_url")) {
      const match = baseUrl.match(/base_url\s*=\s*['"]([^'"]+)['"]/);
      if (match?.[1]) {
        return match[1];
      }
    }
  }

  return fallbackText;
};

export function ProviderCard({
  provider,
  isCurrent,
  appId,
  onSwitch,
  onEdit,
  onDelete,
  onConfigureUsage,
  onOpenWebsite,
  onDuplicate,
  onTest,
  isTesting,
  isProxyRunning,
  isProxyTakeover = false,
  dragHandleProps,
}: ProviderCardProps) {
  const { t } = useTranslation();

  // 获取供应商健康状态
  const { data: health } = useProviderHealth(provider.id, appId);

  // 重置熔断器
  const resetCircuitBreaker = useResetCircuitBreaker();

  const handleResetCircuitBreaker = async () => {
    try {
      await resetCircuitBreaker.mutateAsync({
        providerId: provider.id,
        appType: appId,
      });
      toast.success(
        t("provider.circuitBreakerReset", {
          defaultValue: "熔断器已重置",
        }),
      );
    } catch (error) {
      toast.error(
        t("provider.circuitBreakerResetFailed", {
          defaultValue: "重置失败",
        }) +
          ": " +
          String(error),
      );
    }
  };

  const fallbackUrlText = t("provider.notConfigured", {
    defaultValue: "未配置接口地址",
  });

  const displayUrl = useMemo(() => {
    return extractApiUrl(provider, fallbackUrlText);
  }, [provider, fallbackUrlText]);

  // 判断是否为可点击的 URL（备注不可点击）
  const isClickableUrl = useMemo(() => {
    // 如果有备注，则不可点击
    if (provider.notes?.trim()) {
      return false;
    }
    // 如果显示的是回退文本，也不可点击
    if (displayUrl === fallbackUrlText) {
      return false;
    }
    // 其他情况（官网地址或请求地址）可点击
    return true;
  }, [provider.notes, displayUrl, fallbackUrlText]);

  const usageEnabled = provider.meta?.usage_script?.enabled ?? false;

  const handleOpenWebsite = () => {
    if (!isClickableUrl) {
      return;
    }
    onOpenWebsite(displayUrl);
  };

  return (
    <div
      className={cn(
        "relative overflow-hidden rounded-xl border border-border p-4 transition-all duration-300",
        "bg-card text-card-foreground group",
        // 代理接管模式下 hover 使用绿色边框，否则使用蓝色
        isProxyTakeover ? "hover:border-emerald-500/50" : "hover:border-border-active",
        // 代理接管模式下当前供应商使用绿色边框
        isProxyTakeover && isCurrent
          ? "border-emerald-500/60 shadow-sm shadow-emerald-500/10"
          : isCurrent
            ? "border-primary/50 shadow-sm"
            : "hover:shadow-sm",
        dragHandleProps?.isDragging &&
          "cursor-grabbing border-primary shadow-lg scale-105 z-10",
      )}
    >
      <div className={cn(
        "absolute inset-0 bg-gradient-to-r to-transparent transition-opacity duration-500 pointer-events-none",
        // 代理接管模式下使用绿色渐变，否则使用蓝色主色调
        isProxyTakeover && isCurrent ? "from-emerald-500/10" : "from-primary/10",
        isCurrent ? "opacity-100" : "opacity-0"
      )} />
      <div className="relative flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
        <div className="flex flex-1 items-center gap-2">
          <button
            type="button"
            className={cn(
              "-ml-1.5 flex-shrink-0 cursor-grab active:cursor-grabbing p-1.5",
              "text-muted-foreground/50 hover:text-muted-foreground transition-colors",
              dragHandleProps?.isDragging && "cursor-grabbing",
            )}
            aria-label={t("provider.dragHandle")}
            {...(dragHandleProps?.attributes ?? {})}
            {...(dragHandleProps?.listeners ?? {})}
          >
            <GripVertical className="h-4 w-4" />
          </button>

          {/* 供应商图标 */}
          <div className="h-8 w-8 rounded-lg bg-muted flex items-center justify-center border border-border group-hover:scale-105 transition-transform duration-300">
            <ProviderIcon
              icon={provider.icon}
              name={provider.name}
              color={provider.iconColor}
              size={20}
            />
          </div>

          <div className="space-y-1">
            <div className="flex flex-wrap items-center gap-2 min-h-[20px]">
              <h3 className="text-base font-semibold leading-none">
                {provider.name}
              </h3>

              {/* 健康状态徽章和优先级 */}
              {isProxyRunning && health && (
                <ProviderHealthBadge
                  consecutiveFailures={health.consecutive_failures}
                />
              )}

              {provider.category === "third_party" &&
                provider.meta?.isPartner && (
                  <span
                    className="text-yellow-500 dark:text-yellow-400"
                    title={t("provider.officialPartner", {
                      defaultValue: "官方合作伙伴",
                    })}
                  >
                    ⭐
                  </span>
                )}
            </div>

            {displayUrl && (
              <button
                type="button"
                onClick={handleOpenWebsite}
                className={cn(
                  "inline-flex items-center text-sm max-w-[280px]",
                  isClickableUrl
                    ? "text-blue-500 transition-colors hover:underline dark:text-blue-400 cursor-pointer"
                    : "text-muted-foreground cursor-default",
                )}
                title={displayUrl}
                disabled={!isClickableUrl}
              >
                <span className="truncate">{displayUrl}</span>
              </button>
            )}
          </div>
        </div>

        <div className="relative flex items-center ml-auto">
          <div className="ml-auto transition-transform duration-300 ease-out group-hover:-translate-x-[14.5rem] group-focus-within:-translate-x-[14.5rem] sm:group-hover:-translate-x-[16.5rem] sm:group-focus-within:-translate-x-[16.5rem]">
            <UsageFooter
              provider={provider}
              providerId={provider.id}
              appId={appId}
              usageEnabled={usageEnabled}
              isCurrent={isCurrent}
              inline={true}
            />
          </div>

          <div className="absolute right-0 top-1/2 -translate-y-1/2 flex items-center gap-1.5 opacity-0 pointer-events-none group-hover:opacity-100 group-focus-within:opacity-100 group-hover:pointer-events-auto group-focus-within:pointer-events-auto transition-all duration-300 ease-out translate-x-2 group-hover:translate-x-0 group-focus-within:translate-x-0">
            <ProviderActions
              isCurrent={isCurrent}
              isTesting={isTesting}
              isProxyTakeover={isProxyTakeover}
              onSwitch={() => onSwitch(provider)}
              onEdit={() => onEdit(provider)}
              onDuplicate={() => onDuplicate(provider)}
              onTest={onTest ? () => onTest(provider) : undefined}
              onConfigureUsage={() => onConfigureUsage(provider)}
              onDelete={() => onDelete(provider)}
              onResetCircuitBreaker={
                isProxyRunning && provider.isProxyTarget
                  ? handleResetCircuitBreaker
                  : undefined
              }
              isProxyTarget={provider.isProxyTarget}
              consecutiveFailures={health?.consecutive_failures ?? 0}
            />
          </div>
        </div>
      </div>
    </div>
  );
}