# All files / src/pages HistoryPage.tsx

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     import { useState, useEffect } from 'react';
    import { useToast } from '../components/ui/Toast';
    import { Pagination } from '../components/ui/Pagination';
    import { userApi } from '../api/user';
    import { translateApi } from '../api/translate';
    import type { TranslationHistoryItem } from '../api/types';
    import { Trash2, Clock, Languages, FileText } from 'lucide-react';
    import { useTranslation } from 'react-i18next';

    function HistoryPage() {
      const { t } = useTranslation();
      const { success, error: toastError } = useToast();
      const [items, setItems] = useState<TranslationHistoryItem[]>([]);
      const [filter, setFilter] = useState('all');
      const [loading, setLoading] = useState(false);
      const [page, setPage] = useState(1);
      const [totalPages, setTotalPages] = useState(1);

      useEffect(() => { loadHistory(); }, [filter, page]);
      useEffect(() => { setPage(1); }, [filter]);

      const loadHistory = async () => {
        setLoading(true);
        try {
          const { data } = await userApi.getTranslationHistory({
            page, pageSize: 20, type: filter === 'all' ? undefined : filter,
          });
          setItems(data.list || []);
          setTotalPages(data.totalPages || 1);
        } catch (err) {
          console.warn('加载历史记录失败:', err);
        }
        finally { setLoading(false); }
      };

      const handleDelete = async (taskId: string) => {
        try { await translateApi.deleteHistory(taskId); success('已删除'); loadHistory(); }
        catch { toastError(t('history.actions.delete')); }
      };

      const formatDate = (dateStr: string) => {
        const date = new Date(dateStr);
        const now = new Date();
        const diff = now.getTime() - date.getTime();
        const minutes = Math.floor(diff / 60000);
        const hours = Math.floor(diff / 3600000);
        const days = Math.floor(diff / 86400000);

        if (minutes < 1) return t('history.time.justNow');
        if (minutes < 60) return t('history.time.minutesAgo', { count: minutes });
        if (hours < 24) return t('history.time.hoursAgo', { count: hours });
        if (days < 7) return t('history.time.daysAgo', { count: days });
        return date.toLocaleString('zh-CN', {
          year: 'numeric',
          month: '2-digit',
          day: '2-digit',
          hour: '2-digit',
          minute: '2-digit'
        });
      };

      const getLangName = (code: string) => {
        return t(`common.languages.${code}`, { defaultValue: code });
      };

      const filterTabs = [
        { key: 'all', label: t('history.filters.all') },
        { key: 'completed', label: t('history.filters.completed') },
        { key: 'processing', label: t('history.filters.inProgress') },
        { key: 'failed', label: t('history.filters.failed') },
      ];

      return (
        <div className="py-8">
          <div className="mb-6">
            <h1 className="text-[28px] font-bold text-text-primary mb-2 tracking-tight">
              {t('history.title')}
            </h1>
            <p className="text-[15px] text-text-secondary">
              {t('history.subtitle')}
            </p>
          </div>

          <div className="border border-border rounded-xl shadow-sm bg-surface overflow-hidden">
            <div className="flex items-center gap-2 px-6 py-4 border-b border-border bg-surface-secondary/30">
              {filterTabs.map(tab => (
                <button
                  key={tab.key}
                  onClick={() => setFilter(tab.key)}
                  className={`px-3 py-1.5 text-[13px] font-medium rounded-md transition-all ${
                    filter === tab.key
                      ? 'bg-accent/10 text-accent'
                      : 'text-text-tertiary hover:text-text-primary hover:bg-surface-secondary'
                  }`}
                >
                  {tab.label}
                </button>
              ))}
            </div>

            <div className="flex-1 overflow-auto">
            {loading ? (
              <div className="flex flex-col items-center justify-center py-16 gap-3">
                <div className="w-8 h-8 border-2 border-accent border-t-transparent rounded-full animate-spin" />
                <span className="text-[13px] text-text-tertiary">{t('history.loading')}</span>
              </div>
            ) : items.length === 0 ? (
              <div className="flex flex-col items-center justify-center py-16 gap-4 text-center">
                <div className="w-16 h-16 rounded-full bg-surface-secondary flex items-center justify-center">
                  <Clock className="w-8 h-8 text-text-tertiary" />
                </div>
                <div>
                  <p className="text-[15px] font-medium text-text-secondary mb-1">{t('history.empty.title')}</p>
                  <p className="text-[13px] text-text-tertiary">{t('history.empty.subtitle')}</p>
                </div>
              </div>
            ) : (
              <div className="divide-y divide-border/30">
                {items.map(item => (
                  <div key={item.id} className="px-6 py-4 hover:bg-surface-secondary/20 transition-colors">
                    <div className="flex items-center gap-3">
                      <div className="flex-shrink-0">
                        <FileText className="w-5 h-5 text-text-tertiary" />
                      </div>

                      <div className="flex-1 min-w-0">
                        <div className="flex items-center justify-between gap-3 mb-1.5">
                          <div className="min-w-0 flex-1">
                            <p className="text-[14px] font-medium text-text-primary truncate" title={item.filename || item.taskId}>
                              {item.filename || `翻译任务 #${item.taskId}`}
                            </p>
                          </div>

                          <button
                            onClick={() => handleDelete(item.taskId)}
                            className="p-1.5 rounded-md text-text-tertiary hover:text-red hover:bg-red-bg transition-colors flex-shrink-0"
                            title={t('history.actions.delete')}
                          >
                            <Trash2 className="w-4 h-4" />
                          </button>
                        </div>

                        <div className="flex items-center gap-3 text-[12px] text-text-tertiary">
                          <span className="flex items-center gap-1">
                            <Languages className="w-3 h-3" />
                            {getLangName(item.sourceLang)} → {getLangName(item.targetLang)}
                          </span>
                          <span className="text-text-placeholder">·</span>
                          <span className="flex items-center gap-1">
                            <Clock className="w-3 h-3" />
                            {formatDate(item.createTime)}
                          </span>
                        </div>

                        {item.sourceTextPreview && (
                          <div className="mt-2 text-[13px] text-text-secondary line-clamp-2">
                            {item.sourceTextPreview}
                          </div>
                        )}
                      </div>
                    </div>
                  </div>
                ))}
              </div>
            )}
            </div>

            <Pagination page={page} totalPages={totalPages} onPageChange={setPage} />
          </div>
        </div>
      );
    }

    export { HistoryPage };