import type { SiteListItem } from "@umt/contracts";
import {
  Activity,
  Camera,
  Ellipsis,
  ExternalLink,
  KeyRound,
  LoaderCircle,
  Pencil,
  Power,
  RefreshCw,
  Trash2,
} from "lucide-react";
import { type ReactNode, useState } from "react";
import { Link } from "react-router";
import { toast } from "sonner";
import { snapshotStale, useSnapshotSite, useToggleSite, useUpdateSite } from "~/api/sites.ts";
import { DataTable } from "~/components/console/data-table.tsx";
import { consolePath } from "~/components/console/nav.ts";
import { StatusBadge } from "~/components/console/status-badge.tsx";
import { Button } from "~/components/ui/button.tsx";
import { Popover, PopoverContent, PopoverTrigger } from "~/components/ui/popover.tsx";
import { Switch } from "~/components/ui/switch.tsx";
import { circuitLabel, relTime } from "~/components/workbench/release-fields.ts";
import { errorMessage } from "~/lib/api.ts";
import { cn } from "~/lib/utils.ts";
import type { SiteDialog, useSiteChecks } from "./site-dialogs.tsx";
import {
  ACCOUNT_OVERALL,
  AUTH_KIND_LABEL,
  bytes,
  dataAccount,
  healthLine,
  healthMessage,
  hostOf,
  loginFailureText,
  overallStatus,
  primaryAccount,
  rateLimitText,
  ratioText,
} from "./site-fields.ts";

type Checks = ReturnType<typeof useSiteChecks>;
type Props = { site: SiteListItem; checks: Checks; onDialog: (d: SiteDialog) => void };

/** 按凭证类型给"更新 xx"文案 */
function updateCredLabel(site: SiteListItem): string {
  const k = primaryAccount(site.accounts)?.authKind;
  if (k === "api_key") return "更新 API Key";
  if (k === "password") return "更新密码";
  if (k === "cookie") return "更新 Cookie";
  return "填写凭证";
}

function EnableSwitch({ site, withLabel }: { site: SiteListItem; withLabel?: boolean }) {
  const toggle = useToggleSite();
  return (
    <span className="flex shrink-0 items-center gap-2 text-meta text-muted-foreground">
      {withLabel ? <label htmlFor={`site-en-${site.id}`}>{site.enabled ? "已启用" : "已停用"}</label> : null}
      <Switch
        id={`site-en-${site.id}`}
        checked={site.enabled}
        disabled={toggle.isPending}
        aria-label={`${site.enabled ? "停用" : "启用"}${site.name}`}
        onCheckedChange={(v) =>
          toggle.mutate(
            { id: site.id, enabled: v },
            {
              onSuccess: () => toast.success(v ? `已启用 ${site.name}` : `已停用 ${site.name}`),
              onError: (e) => toast.error(errorMessage(e)),
            },
          )
        }
      />
    </span>
  );
}

/** 默认参与搜索:搜资源时「默认站点」集合 */
function SearchDefaultSwitch({ site }: { site: SiteListItem }) {
  const update = useUpdateSite();
  const on = site.searchDefault !== false;
  return (
    <span className="mr-auto flex items-center gap-2 text-meta text-muted-foreground">
      <Switch
        id={`site-sd-${site.id}`}
        checked={on}
        disabled={update.isPending}
        onCheckedChange={(v) =>
          update.mutate(
            { id: site.id, body: { searchDefault: v } },
            {
              onSuccess: () => toast.success(v ? `${site.name} 默认参与搜索` : `${site.name} 不再默认参与搜索`),
              onError: (e) => toast.error(errorMessage(e)),
            },
          )
        }
      />
      <label htmlFor={`site-sd-${site.id}`}>默认参与搜索</label>
    </span>
  );
}

/** "更多"菜单:更新凭证、编辑、快照、启停、删除 */
export function SiteMoreMenu({ site, onDialog }: { site: SiteListItem; onDialog: (d: SiteDialog) => void }) {
  const [open, setOpen] = useState(false);
  const snap = useSnapshotSite();
  const toggle = useToggleSite();
  const item = (
    icon: ReactNode,
    label: string,
    onClick: () => void,
    opts: { danger?: boolean; disabled?: boolean } = {},
  ) => (
    <button
      type="button"
      role="menuitem"
      disabled={opts.disabled}
      onClick={() => {
        setOpen(false);
        onClick();
      }}
      className={cn(
        "flex w-full items-center gap-2 rounded-lg px-2.5 py-2 text-left text-caption transition-colors hover:bg-accent disabled:opacity-50 [&_svg]:h-3.5 [&_svg]:w-3.5",
        opts.danger ? "text-destructive" : "text-foreground",
      )}
    >
      {icon}
      {label}
    </button>
  );
  return (
    <Popover open={open} onOpenChange={setOpen}>
      <PopoverTrigger asChild>
        <Button variant="ghost" size="icon-sm" aria-label={`${site.name} 更多操作`}>
          <Ellipsis />
        </Button>
      </PopoverTrigger>
      <PopoverContent align="end" className="w-44 p-1.5" role="menu">
        {item(<KeyRound />, updateCredLabel(site), () => onDialog({ kind: "credentials", site }))}
        {item(<Pencil />, "编辑站点", () => onDialog({ kind: "edit", site }))}
        {item(
          <Camera />,
          "抓取快照",
          () =>
            snap.mutate(
              { id: site.id },
              { onSuccess: () => toast.success("快照已排队"), onError: (e) => toast.error(errorMessage(e)) },
            ),
          { disabled: !site.enabled },
        )}
        {item(<Power />, site.enabled ? "停用站点" : "启用站点", () =>
          toggle.mutate(
            { id: site.id, enabled: !site.enabled },
            {
              onSuccess: () => toast.success(site.enabled ? `已停用 ${site.name}` : `已启用 ${site.name}`),
              onError: (e) => toast.error(errorMessage(e)),
            },
          ),
        )}
        <div className="my-1 border-t border-border/60" />
        {item(<Trash2 />, "删除站点", () => onDialog({ kind: "delete", site }), { danger: true })}
      </PopoverContent>
    </Popover>
  );
}

function CheckButtons({ site, checks, compact }: Omit<Props, "onDialog"> & { compact?: boolean }) {
  const h = checks.isBusy(site.id, "health");
  const l = checks.isBusy(site.id, "login");
  const hasAccount = !!site.accounts?.some((a) => a.enabled && a.authKind !== "passkey");
  return (
    <>
      <Button
        variant="outline"
        size="sm"
        disabled={h || !site.enabled}
        title={site.enabled ? "首页连通 + 登录态，走站点限流" : "站点已停用"}
        onClick={() => void checks.checkHealth(site)}
      >
        {h ? <LoaderCircle className="animate-spin" /> : <Activity />}
        {compact ? <span className="sr-only sm:not-sr-only">检测健康</span> : "检测健康"}
      </Button>
      <Button
        variant="outline"
        size="sm"
        disabled={l || !hasAccount}
        title={hasAccount ? "用凭证刷新登录状态并拉取用户数据" : "先填写凭证"}
        onClick={() => void checks.refreshLogin(site)}
      >
        {l ? <LoaderCircle className="animate-spin" /> : <RefreshCw />}
        {compact ? <span className="sr-only sm:not-sr-only">刷新登录</span> : "刷新登录"}
      </Button>
    </>
  );
}

function AccountBadges({ site }: { site: SiteListItem }) {
  const st = ACCOUNT_OVERALL[overallStatus(site)];
  const acc = primaryAccount(site.accounts);
  const hasPasskey = site.accounts?.some((a) => a.hasPasskey || a.authKind === "passkey");
  return (
    <>
      <StatusBadge tone={st.tone}>账号{st.label}</StatusBadge>
      {acc && acc.authKind !== "passkey" ? (
        <span className="rounded-full border border-border px-2 py-0.5 text-meta text-muted-foreground">
          {AUTH_KIND_LABEL[acc.authKind]}
        </span>
      ) : null}
      {hasPasskey ? (
        <span className="rounded-full border border-border px-2 py-0.5 text-meta text-muted-foreground">Passkey</span>
      ) : null}
    </>
  );
}

function Stat({ label, children, className }: { label: string; children: ReactNode; className?: string }) {
  return (
    <div className={cn("min-w-0", className)}>
      <dt className="text-meta text-muted-foreground">{label}</dt>
      <dd className="truncate text-caption font-medium text-foreground tabular-nums">{children}</dd>
    </div>
  );
}

export function SiteCard({ site, checks, onDialog }: Props) {
  const acc = primaryAccount(site.accounts);
  const dAcc = dataAccount(site.accounts);
  const u = dAcc?.userData ?? null;
  const health = healthLine(site.lastHealth, site.lastHealthAt);
  const hmsg = healthMessage(site.lastHealth);
  const stale = site.snapshotEnabled && snapshotStale(site);
  const circuit = circuitLabel(site);
  const lastErr = acc && acc.status !== "active" ? acc.lastError : null;

  return (
    <article className={cn("pg-slab flex min-w-0 flex-col rounded-xl p-4", !site.enabled && "opacity-75")}>
      <header className="flex items-start justify-between gap-3">
        <div className="min-w-0">
          <Link
            to={consolePath("sites", site.id)}
            className="block truncate text-lead font-semibold text-foreground hover:underline"
          >
            {site.name}
          </Link>
          <a
            href={site.baseUrl}
            target="_blank"
            rel="noreferrer noopener"
            className="inline-flex max-w-full items-center gap-1 truncate text-meta text-muted-foreground hover:text-foreground"
          >
            <span className="truncate">{hostOf(site.baseUrl)}</span>
            <ExternalLink className="h-3 w-3 shrink-0" />
          </a>
        </div>
        <EnableSwitch site={site} withLabel />
      </header>

      <div className="mt-3 flex flex-wrap items-center gap-1.5">
        <AccountBadges site={site} />
        {u?.vip ? <StatusBadge tone="neutral">VIP</StatusBadge> : null}
        {circuit ? <StatusBadge tone="warning">{circuit}</StatusBadge> : null}
      </div>

      {lastErr ? (
        <p className="mt-2 line-clamp-2 text-meta text-warning" title={lastErr.message}>
          {loginFailureText(lastErr.reason, lastErr.message, acc?.authKind).text}
        </p>
      ) : null}

      <div className="mt-3 rounded-lg border border-border/60 px-3 py-2.5">
        {u ? (
          <>
            <dl className="grid grid-cols-3 gap-x-3 gap-y-2">
              <Stat label="上传">{bytes(u.upload)}</Stat>
              <Stat label="下载">{bytes(u.download)}</Stat>
              <Stat label="分享率">{ratioText(u)}</Stat>
              <Stat label="等级">{u.userLevel ?? "—"}</Stat>
              <Stat label="做种">
                {u.seeding}
                {u.seedingSize ? <span className="text-muted-foreground"> · {bytes(u.seedingSize)}</span> : null}
              </Stat>
              {u.bonus !== null ? (
                <Stat label="魔力">{u.bonus.toLocaleString("zh-CN", { maximumFractionDigits: 1 })}</Stat>
              ) : (
                <Stat label="未读消息">{u.messageUnread || "—"}</Stat>
              )}
            </dl>
            <p className="mt-2 flex flex-wrap justify-between gap-x-3 text-meta text-muted-foreground">
              <span>{u.username ?? ""}</span>
              <span>
                {u.messageUnread > 0 && u.bonus !== null ? `${u.messageUnread} 条未读 · ` : ""}数据{" "}
                {relTime(dAcc?.userDataAt)}
              </span>
            </p>
          </>
        ) : (
          <p className="py-2 text-caption text-muted-foreground">
            {acc ? "还没有用户数据。刷新登录后显示" : "还没有凭证。填写凭证后显示账号数据"}
          </p>
        )}
      </div>

      <dl className="mt-3 grid grid-cols-2 gap-x-4 gap-y-2 text-caption">
        <div className="min-w-0">
          <dt className="text-meta text-muted-foreground">上次登录</dt>
          <dd className="text-foreground">{relTime(acc?.lastLoginAt)}</dd>
        </div>
        <div className="min-w-0">
          <dt className="text-meta text-muted-foreground">健康检测</dt>
          <dd className="truncate" title={hmsg ?? undefined}>
            <StatusDot tone={health.tone} />
            {health.text}
          </dd>
        </div>
        <div className="min-w-0">
          <dt className="text-meta text-muted-foreground">快照</dt>
          <dd className={cn("text-foreground", stale && "text-warning")}>
            {!site.snapshotEnabled
              ? "未开启"
              : site.lastSnapshotAt
                ? `${relTime(site.lastSnapshotAt)}${stale ? " · 已过期" : ""}`
                : "还没有快照"}
          </dd>
        </div>
        <div className="min-w-0">
          <dt className="text-meta text-muted-foreground">限流</dt>
          <dd className="truncate text-foreground">{rateLimitText(site.rateLimit)}</dd>
        </div>
      </dl>

      <footer className="mt-4 flex flex-wrap items-center justify-end gap-2 border-t border-border/60 pt-3">
        <SearchDefaultSwitch site={site} />
        {acc ? (
          <CheckButtons site={site} checks={checks} />
        ) : (
          <Button size="sm" onClick={() => onDialog({ kind: "credentials", site })}>
            <KeyRound />
            填写凭证
          </Button>
        )}
        <SiteMoreMenu site={site} onDialog={onDialog} />
      </footer>
    </article>
  );
}

function StatusDot({ tone }: { tone: "success" | "warning" | "destructive" | "neutral" }) {
  return (
    <span
      aria-hidden
      className={cn(
        "mr-1.5 inline-block h-1.5 w-1.5 rounded-full align-middle",
        tone === "success"
          ? "bg-success"
          : tone === "warning"
            ? "bg-warning"
            : tone === "destructive"
              ? "bg-destructive"
              : "bg-muted-foreground",
      )}
    />
  );
}

/** 列表视图:同字段,窄屏隐藏次要列 */
export function SiteTable({
  sites,
  checks,
  onDialog,
}: {
  sites: SiteListItem[];
  checks: Checks;
  onDialog: (d: SiteDialog) => void;
}) {
  return (
    <DataTable
      rows={sites}
      rowKey={(r) => r.id}
      columns={[
        {
          key: "name",
          header: "站点",
          cell: (s) => (
            <div className="min-w-0">
              <Link to={consolePath("sites", s.id)} className="font-medium text-foreground hover:underline">
                {s.name}
              </Link>
              <p className="truncate text-meta text-muted-foreground">{hostOf(s.baseUrl)}</p>
            </div>
          ),
        },
        {
          key: "account",
          header: "账号",
          cell: (s) => (
            <div className="flex flex-wrap items-center gap-1">
              <AccountBadges site={s} />
              {dataAccount(s.accounts)?.userData?.vip ? <StatusBadge>VIP</StatusBadge> : null}
            </div>
          ),
        },
        {
          key: "login",
          header: "上次登录",
          hideBelow: "lg",
          cell: (s) => (
            <span className="text-muted-foreground">{relTime(primaryAccount(s.accounts)?.lastLoginAt)}</span>
          ),
        },
        {
          key: "traffic",
          header: "上传 / 下载",
          hideBelow: "md",
          cell: (s) => {
            const u = dataAccount(s.accounts)?.userData;
            return u ? (
              <span className="whitespace-nowrap tabular-nums">
                {bytes(u.upload)} / {bytes(u.download)}
              </span>
            ) : (
              "—"
            );
          },
        },
        {
          key: "ratio",
          header: "分享率",
          hideBelow: "sm",
          align: "right",
          cell: (s) => <span className="tabular-nums">{ratioText(dataAccount(s.accounts)?.userData)}</span>,
        },
        {
          key: "level",
          header: "等级 · 做种",
          hideBelow: "lg",
          cell: (s) => {
            const u = dataAccount(s.accounts)?.userData;
            return u ? `${u.userLevel ?? "—"} · ${u.seeding}` : "—";
          },
        },
        {
          key: "health",
          header: "健康检测",
          hideBelow: "md",
          cell: (s) => {
            const h = healthLine(s.lastHealth, s.lastHealthAt);
            return (
              <span className="text-caption" title={healthMessage(s.lastHealth) ?? undefined}>
                <StatusDot tone={h.tone} />
                {h.text}
              </span>
            );
          },
        },
        {
          key: "snapshot",
          header: "快照",
          hideBelow: "lg",
          cell: (s) => (
            <span className={s.snapshotEnabled && snapshotStale(s) ? "text-warning" : "text-muted-foreground"}>
              {!s.snapshotEnabled ? "未开启" : s.lastSnapshotAt ? relTime(s.lastSnapshotAt) : "还没有"}
            </span>
          ),
        },
        {
          key: "actions",
          header: <span className="sr-only">操作</span>,
          align: "right",
          cell: (s) => (
            <div className="flex items-center justify-end gap-1.5">
              <EnableSwitch site={s} />
              {primaryAccount(s.accounts) ? <CheckButtons site={s} checks={checks} compact /> : null}
              <SiteMoreMenu site={s} onDialog={onDialog} />
            </div>
          ),
        },
      ]}
    />
  );
}