UHD_Media_Tool/apps/web/app/components/files/trash-view.tsx

import { Clock, File as FileIcon, Folder, LoaderCircle, RotateCcw, Trash, Trash2 } from "lucide-react";
import { type ReactNode, useMemo, useState } from "react";
import { Link } from "react-router";
import { toast } from "sonner";
import { useSession } from "~/api/auth.ts";
import {
  type FileRef,
  filesErrorText,
  filesMockEnabled,
  type TrashItem,
  useFileRoots,
  usePurge,
  useRestore,
  useTrash,
} from "~/api/files.ts";
import { ConfirmDialog } from "~/components/console/confirm-dialog.tsx";
import { type DataColumn, DataTable } from "~/components/console/data-table.tsx";
import { consolePath } from "~/components/console/nav.ts";
import { recordPath } from "~/components/console/record-sheet.tsx";
import { StatusBadge } from "~/components/console/status-badge.tsx";
import { DirPicker } from "~/components/files/dir-picker.tsx";
import { Checkbox } from "~/components/files/file-list.tsx";
import { baseName, newIdempotencyKey, parentRel } from "~/components/files/model.ts";
import { Button } from "~/components/ui/button.tsx";
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogTitle,
} from "~/components/ui/dialog.tsx";
import { Input } from "~/components/ui/input.tsx";
import { relTime } from "~/components/workbench/release-fields.ts";
import { actorText } from "~/lib/labels.ts";
import { formatBytes, formatDateTime } from "~/lib/utils.ts";

const DAY = 86_400_000;

function expiryTone(iso: string): "destructive" | "warning" | "neutral" {
  const left = Date.parse(iso) - Date.now();
  if (left <= 0) return "destructive";
  if (left < DAY) return "warning";
  return "neutral";
}

// 回收站:文件管理右侧的一个视图(?view=trash,console-ia.md §9),左边目录树里点「回收站」切过来。

export function TrashView({ leading }: { leading?: ReactNode }) {
  const trash = useTrash();
  const roots = useFileRoots();
  const session = useSession();
  const isAdmin = session.data?.actor?.type === "admin";
  const restore = useRestore();
  const purge = usePurge();
  const [picked, setPicked] = useState<Set<string>>(new Set());
  const [restoreTo, setRestoreTo] = useState<string[] | null>(null);
  const [purgeAll, setPurgeAll] = useState(false);
  const [purgeIds, setPurgeIds] = useState<string[] | null>(null);
  const [confirmText, setConfirmText] = useState("");
  /** 还原失败的项:id → 原因(原位置被占用时按钮换成"还原到…") */
  const [failedIds, setFailedIds] = useState<Map<string, { code: string; message: string }>>(new Map());
  const rows = trash.data?.pages.flatMap((p) => p.items);
  const rootName = useMemo(() => new Map((roots.data ?? []).map((r) => [r.id, r])), [roots.data]);
  const expired = rows?.filter((r) => Date.parse(r.expiresAt) <= Date.now()) ?? [];

  const toggle = (id: string) =>
    setPicked((p) => {
      const n = new Set(p);
      if (n.has(id)) n.delete(id);
      else n.add(id);
      return n;
    });

  const doRestore = (ids: string[], target?: FileRef) =>
    restore.mutate(
      { idempotencyKey: newIdempotencyKey(), ids, target },
      {
        onSuccess: (r) => {
          setPicked(new Set());
          setRestoreTo(null);
          setFailedIds((prev) => {
            const next = new Map(prev);
            for (const x of r.restored) next.delete(x.id);
            for (const f of r.failed) next.set(f.id, { code: f.code, message: f.message });
            return next;
          });
          if (r.restored.length)
            toast.success(
              `已还原 ${r.restored.length} 项`,
              r.recordId
                ? {
                    action: {
                      label: "整理记录",
                      onClick: () => window.location.assign(recordPath("organize", r.recordId as string)),
                    },
                  }
                : undefined,
            );
          if (r.failed.length) toast.error(`${r.failed.length} 项没有还原，原因见列表`);
        },
        onError: (e) => toast.error(filesErrorText(e, "还原失败")),
      },
    );

  const doPurge = (ids?: string[]) =>
    purge
      .mutateAsync({ idempotencyKey: newIdempotencyKey(), ids })
      .then((r) => {
        setPicked(new Set());
        toast.success(`已清除 ${r.purged.length} 项${r.failed.length ? `，${r.failed.length} 项失败` : ""}`);
      })
      .catch((e) => {
        toast.error(filesErrorText(e, "清除失败"));
        throw e;
      });

  const columns: DataColumn<TrashItem>[] = [
    {
      key: "pick",
      header: (
        <Checkbox
          checked={!!rows?.length && picked.size === rows.length}
          partial={picked.size > 0 && picked.size < (rows?.length ?? 0)}
          label="全选"
          onToggle={() => setPicked(picked.size === rows?.length ? new Set() : new Set(rows?.map((r) => r.id)))}
        />
      ),
      className: "w-10",
      cell: (r) => (
        <Checkbox checked={picked.has(r.id)} label={`选择 ${baseName(r.originalPath)}`} onToggle={() => toggle(r.id)} />
      ),
    },
    {
      key: "name",
      header: "名称",
      cell: (r) => {
        const fail = failedIds.get(r.id);
        return (
          <div className="flex min-w-0 max-w-md items-start gap-2">
            {r.isDir ? (
              <Folder className="mt-0.5 h-4 w-4 shrink-0 text-muted-foreground" />
            ) : (
              <FileIcon className="mt-0.5 h-4 w-4 shrink-0 text-muted-foreground" />
            )}
            <div className="min-w-0">
              <p className="truncate text-foreground" title={r.trashPath}>
                {baseName(r.originalPath)}
              </p>
              {fail ? (
                <p className="text-meta text-destructive">
                  {fail.code === "exists" || fail.code === "conflict"
                    ? "原位置已被占用"
                    : fail.code === "too_large"
                      ? "跨卷还原超过大小上限"
                      : fail.message}
                </p>
              ) : null}
            </div>
          </div>
        );
      },
    },
    {
      key: "origin",
      header: "原位置",
      hideBelow: "md",
      cell: (r) => {
        const root = rootName.get(r.rootId);
        const dir = parentRel(r.originalPath);
        return root ? (
          <Link
            to={`/console/files?root=${encodeURIComponent(r.rootId)}${dir ? `&path=${encodeURIComponent(dir)}` : ""}`}
            className="block max-w-xs truncate font-mono text-meta text-muted-foreground hover:text-foreground hover:underline"
            title={`${root.hostPath}/${r.originalPath}`}
          >
            {dir ? `${root.name}/${dir}` : root.name}
          </Link>
        ) : (
          <span className="block max-w-xs truncate font-mono text-meta text-muted-foreground">{r.rootId}</span>
        );
      },
    },
    {
      key: "size",
      header: "大小",
      hideBelow: "sm",
      align: "right",
      cell: (r) => <span className="whitespace-nowrap">{formatBytes(r.size, 1)}</span>,
    },
    {
      key: "deleted",
      header: "删除",
      hideBelow: "md",
      cell: (r) => (
        <span
          className="block max-w-40 text-muted-foreground"
          title={`${formatDateTime(r.deletedAt)}${r.actor ? ` · ${r.actor}` : ""}`}
        >
          <span className="block whitespace-nowrap">{relTime(r.deletedAt)}</span>
          {r.actor ? <span className="block truncate text-meta">{actorText(r.actor)}</span> : null}
        </span>
      ),
    },
    {
      key: "expires",
      header: "到期清除",
      cell: (r) => (
        <span title={formatDateTime(r.expiresAt)}>
          <StatusBadge tone={expiryTone(r.expiresAt)}>
            {Date.parse(r.expiresAt) <= Date.now() ? "已到期" : relTime(r.expiresAt)}
          </StatusBadge>
        </span>
      ),
    },
    {
      key: "asset",
      header: "媒体库记录",
      hideBelow: "lg",
      cell: (r) => {
        const snap = r.assetSnapshot as { title?: string; contentUnit?: string | null; mediaEntityId?: string } | null;
        if (!snap?.title) return <span className="text-muted-foreground">—</span>;
        const label = `${snap.title}${snap.contentUnit ? ` ${snap.contentUnit}` : ""}`;
        return (
          <span className="block max-w-48 text-meta" title="还原后不会回到媒体库，需要时重新整理">
            {snap.mediaEntityId ? (
              <Link className="underline underline-offset-2" to={consolePath("library", snap.mediaEntityId)}>
                {label}
              </Link>
            ) : (
              label
            )}
            <span className="block text-muted-foreground">已移出媒体库</span>
          </span>
        );
      },
    },
    {
      key: "act",
      header: <span className="sr-only">操作</span>,
      align: "right",
      cell: (r) => (
        <div className="flex justify-end gap-1">
          {failedIds.get(r.id)?.code === "exists" || failedIds.get(r.id)?.code === "conflict" ? (
            <Button size="xs" variant="outline" onClick={() => setRestoreTo([r.id])}>
              <RotateCcw />
              还原到…
            </Button>
          ) : (
            <>
              <Button size="xs" variant="outline" onClick={() => doRestore([r.id])} disabled={restore.isPending}>
                <RotateCcw />
                还原
              </Button>
              <Button size="xs" variant="ghost" onClick={() => setRestoreTo([r.id])}>
                还原到…
              </Button>
            </>
          )}
          {isAdmin ? (
            <Button
              size="xs"
              variant="ghost"
              aria-label="立即清除"
              title="立即清除"
              onClick={() => setPurgeIds([r.id])}
            >
              <Trash2 />
            </Button>
          ) : null}
        </div>
      ),
    },
  ];

  return (
    <>
      <div className="mb-3 flex min-w-0 items-start gap-2">
        {leading}
        <div className="min-w-0 flex-1">
          <h2 className="flex items-center gap-2 text-body font-semibold text-foreground">
            回收站
            {filesMockEnabled() ? <StatusBadge tone="warning">演示数据</StatusBadge> : null}
          </h2>
          <p className="text-caption text-muted-foreground">
            到期后自动清除，到期前可以还原。还原不会恢复媒体库记录，需要时重新整理。
          </p>
        </div>
      </div>
      <div className="mb-4 flex flex-wrap items-center gap-2">
        <Button
          size="sm"
          variant="outline"
          disabled={!picked.size || restore.isPending}
          onClick={() => doRestore([...picked])}
        >
          {restore.isPending ? <LoaderCircle className="animate-spin" /> : <RotateCcw />}
          {picked.size ? `还原 ${picked.size} 项` : "还原选中"}
        </Button>
        {isAdmin ? (
          <>
            <Button size="sm" variant="outline" disabled={!picked.size} onClick={() => setPurgeIds([...picked])}>
              <Trash2 />
              {picked.size ? `清除 ${picked.size} 项` : "清除选中"}
            </Button>
            <ConfirmDialog
              trigger={
                <Button size="sm" variant="outline" disabled={!expired.length}>
                  <Clock />
                  清除已到期 {expired.length || ""}
                </Button>
              }
              title="清除已到期的项？"
              description={`${expired.length} 项已过保留期，清除后不可恢复。`}
              confirmLabel="清除"
              destructive
              onConfirm={() => doPurge(undefined)}
            />
            <Button
              size="sm"
              variant="destructive"
              className="ml-auto"
              disabled={!rows?.length}
              onClick={() => setPurgeAll(true)}
            >
              <Trash />
              清空回收站
            </Button>
          </>
        ) : (
          <span className="ml-auto text-meta text-muted-foreground">立即清除需要管理员会话。</span>
        )}
      </div>
      <DataTable
        columns={columns}
        rows={rows}
        rowKey={(r) => r.id}
        loading={trash.isPending}
        error={trash.error}
        onRetry={() => void trash.refetch()}
        hasMore={trash.hasNextPage}
        onLoadMore={() => void trash.fetchNextPage()}
        loadingMore={trash.isFetchingNextPage}
        empty={{ icon: Trash2, title: "回收站是空的", description: "在文件管理里删除的项会出现在这里。" }}
        groupBy={
          new Set(rows?.map((r) => r.rootId)).size > 1
            ? {
                key: (r) => r.rootId,
                label: (k) => rootName.get(k)?.name ?? k,
                storageKey: "files-trash-by-root",
              }
            : undefined
        }
      />

      <ConfirmDialog
        open={!!purgeIds}
        onOpenChange={(o) => !o && setPurgeIds(null)}
        title={`立即清除 ${purgeIds?.length ?? 0} 项？`}
        description="清除后不可恢复。"
        confirmLabel="清除"
        destructive
        onConfirm={() => doPurge(purgeIds ?? undefined).then(() => setPurgeIds(null))}
      />

      {/* 清空全部:二次确认,需输入“清空” */}
      <ConfirmDialog
        open={purgeAll}
        onOpenChange={(o) => {
          setPurgeAll(o);
          if (!o) setConfirmText("");
        }}
        title="清空回收站？"
        description={`全部 ${rows?.length ?? 0} 项（含未到期）将被清除，不可恢复。`}
        confirmLabel="清空"
        confirmDisabled={confirmText.trim() !== "清空"}
        destructive
        onConfirm={() => {
          if (confirmText.trim() !== "清空") {
            toast.error("输入「清空」以确认");
            return Promise.reject(new Error("unconfirmed"));
          }
          return doPurge(rows?.map((r) => r.id)).then(() => setConfirmText(""));
        }}
      >
        <Input
          value={confirmText}
          onChange={(e) => setConfirmText(e.target.value)}
          placeholder="输入 清空"
          aria-label="输入 清空 以确认"
        />
      </ConfirmDialog>

      {restoreTo ? (
        <RestoreToDialog
          ids={restoreTo}
          onClose={() => setRestoreTo(null)}
          onPick={(t) => doRestore(restoreTo, t)}
          pending={restore.isPending}
        />
      ) : null}
    </>
  );
}

function RestoreToDialog({
  ids,
  onClose,
  onPick,
  pending,
}: {
  ids: string[];
  onClose: () => void;
  onPick: (t: FileRef) => void;
  pending: boolean;
}) {
  const roots = useFileRoots();
  const [target, setTarget] = useState<FileRef | null>(null);
  return (
    <Dialog open onOpenChange={(o) => !o && onClose()}>
      <DialogContent className="sm:max-w-lg">
        <DialogHeader>
          <DialogTitle>还原到…</DialogTitle>
          <DialogDescription>{ids.length} 项 · 选一个可写的媒体库目录。同名项已存在时不覆盖。</DialogDescription>
        </DialogHeader>
        <DirPicker roots={roots.data ?? []} value={target} onChange={setTarget} className="max-h-80" />
        <DialogFooter>
          <Button variant="outline" onClick={onClose}>
            取消
          </Button>
          <Button disabled={!target || pending} onClick={() => target && onPick(target)}>
            {pending ? <LoaderCircle className="animate-spin" /> : <RotateCcw />}
            还原到这里
          </Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
  );
}