"use client";
import { useState } from "react";
import useSWR from "swr";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { adminFetcher } from "./media-records-panel";
import { formatRecordTime } from "@/lib/admin/record-time";
type Event = {
  id: string;
  modelDisplayName: string;
  modelRuntimeId: string;
  providerName: string;
  eventType: string;
  createdAt: string;
  errorMessage: string;
  elapsedMs: number | null;
  consecutiveFailures: number;
  autoDisabled: boolean;
};
export function ModelHealthPanel({
  providers,
  models,
  initialModelId = "",
}: {
  initialModelId?: string;
  providers: Array<{ id: string; name: string }>;
  models: Array<{ id: string; displayName: string; providerId: string }>;
}) {
  const [filters, setFilters] = useState({
    providerId: "",
    modelId: initialModelId,
    eventType: "",
    startDate: "",
    endDate: "",
  });
  const [page, setPage] = useState(1);
  const query = new URLSearchParams({ ...filters, page: String(page), limit: "20" });
  const { data, error, isLoading, isValidating, mutate } = useSWR<{
    events: Event[];
    hasMore: boolean;
  }>(`/api/admin/ai-model-health?${query}`, adminFetcher, {
    keepPreviousData: true,
    revalidateOnFocus: false,
  });
  const update = (change: Partial<typeof filters>) => {
    setFilters((f) => ({ ...f, ...change }));
    setPage(1);
  };
  return (
    <div className="space-y-4">
      <div>
        <h3 className="text-lg font-semibold">运行健康</h3>
        <p className="mt-2 text-sm text-muted-foreground">
          按上游和模型追踪故障，查看完整原因与发生时间。
        </p>
      </div>
      <div className="flex flex-wrap gap-3">
        {[
          ["providerId", "全部上游", providers.map((p) => [p.id, p.name])],
          [
            "modelId",
            "全部模型",
            models
              .filter((m) => !filters.providerId || m.providerId === filters.providerId)
              .map((m) => [m.id, m.displayName]),
          ],
          [
            "eventType",
            "全部错误",
            [
              ["quota", "额度 / 余额"],
              ["timeout", "超时"],
              ["unavailable", "不可用"],
              ["invalid_model", "模型不可用"],
              ["download_error", "结果下载失败"],
              ["error", "其他错误"],
              ["success", "成功"],
            ],
          ],
        ].map(([key, label, options]) => (
          <select
            key={key as string}
            aria-label={label as string}
            className="h-10 max-w-64 rounded-md border bg-background px-3 text-sm"
            value={filters[key as keyof typeof filters]}
            onChange={(e) =>
              update({
                [key as string]: e.target.value,
                ...(key === "providerId" ? { modelId: "" } : {}),
              })
            }
          >
            <option value="">{label as string}</option>
            {(options as string[][]).map(([value, text]) => (
              <option key={value} value={value}>
                {text}
              </option>
            ))}
          </select>
        ))}
        <Input
          aria-label="故障开始日期"
          className="h-10 w-40"
          type="date"
          value={filters.startDate}
          onChange={(e) => update({ startDate: e.target.value })}
        />
        <Input
          aria-label="故障结束日期"
          className="h-10 w-40"
          type="date"
          value={filters.endDate}
          onChange={(e) => update({ endDate: e.target.value })}
        />
        <Button variant="outline" disabled={isValidating} onClick={() => mutate()}>
          刷新日志
        </Button>
      </div>
      {error ? (
        <p role="alert" className="p-6 text-sm text-destructive">
          日志加载失败，请点击刷新重试。
        </p>
      ) : isLoading ? (
        <p role="status" className="p-6 text-sm">
          正在加载故障日志…
        </p>
      ) : (
        <div className="divide-y rounded-xl border">
          {data?.events.map((event) => (
            <div key={event.id} className="p-4">
              <div className="flex flex-wrap items-center gap-3 text-sm">
                <strong className="font-semibold">
                  {event.modelDisplayName || event.modelRuntimeId || "已删除模型"}
                </strong>
                <span className="text-muted-foreground">{event.providerName || "未知上游"}</span>
                <span className="rounded bg-muted px-2 py-1 text-xs">
                  {{
                    quota: "额度 / 余额",
                    timeout: "超时",
                    unavailable: "不可用",
                    error: "服务错误",
                    invalid_model: "模型不可用",
                    download_error: "结果下载失败",
                    success: "成功",
                  }[event.eventType] || event.eventType}
                </span>
                <time className="ml-auto text-xs tabular-nums text-muted-foreground">
                  {formatRecordTime(event.createdAt)}
                </time>
              </div>
              <p className="mt-3 whitespace-pre-wrap break-words text-sm">
                {event.errorMessage || "未记录详细原因"}
              </p>
              <div className="mt-2 flex gap-4 text-xs text-muted-foreground">
                <span>连续失败 {event.consecutiveFailures} 次</span>
                {event.elapsedMs !== null && (
                  <span>耗时 {Math.round(event.elapsedMs / 1000)} 秒</span>
                )}
                {event.autoDisabled && <span>已自动停用</span>}
              </div>
            </div>
          ))}
          {!data?.events.length && (
            <p className="p-12 text-center text-sm text-muted-foreground">该范围内没有故障记录。</p>
          )}
        </div>
      )}
      <div className="flex items-center justify-between">
        <span className="text-sm text-muted-foreground">
          第 {page} 页{isValidating && " · 正在更新…"}
        </span>
        <div className="flex gap-2">
          <Button
            variant="outline"
            disabled={page === 1 || isValidating}
            onClick={() => setPage((p) => p - 1)}
          >
            上一页
          </Button>
          <Button
            variant="outline"
            disabled={!data?.hasMore || isValidating}
            onClick={() => setPage((p) => p + 1)}
          >
            下一页
          </Button>
        </div>
      </div>
    </div>
  );
}