// 审计策略配置 — 保留天数与应用后立即清理 // Logan.Li
import { useState, useEffect, useCallback } from 'react';
import { toast } from 'sonner';
import { auditSettingsApi, type AuditSettings } from '@/api';
import i18n from '@/i18n';

const RETENTION_OPTIONS = [7, 15, 30, 90, 180, 365] as const;

export function useAuditSettings() {
  const [settings, setSettings] = useState<AuditSettings | null>(null);
  const [retentionDays, setRetentionDays] = useState('180');
  const [recordAll, setRecordAll] = useState(true);
  const [loading, setLoading] = useState(true);
  const [applying, setApplying] = useState(false);

  const load = useCallback(async () => {
    setLoading(true);
    try {
      const data = await auditSettingsApi.get();
      setSettings(data);
      setRetentionDays(String(data.retention_days || 180));
      setRecordAll(data.record_all !== false);
    } catch {
      toast.error(i18n.t('system.useauditsetting.s32e8a76e'));
    } finally {
      setLoading(false);
    }
  }, []);

  useEffect(() => {
    load();
  }, [load]);

  const handleApply = async () => {
    const days = Number(retentionDays);
    if (!RETENTION_OPTIONS.includes(days as (typeof RETENTION_OPTIONS)[number])) {
      toast.error(i18n.t('system.useauditsetting.s51680af0'));
      return;
    }
    setApplying(true);
    try {
      const res = await auditSettingsApi.apply({ retention_days: days, record_all: recordAll });
      setSettings({
        retention_days: res.retention_days ?? days,
        record_all: res.record_all ?? recordAll,
        last_cleanup_at: res.last_cleanup_at,
        last_cleanup_summary: res.last_cleanup_summary,
      });
      const total = res.cleanup?.total ?? 0;
      toast.success(
        total > 0
          ? `已应用 ${days} 天保留策略，立即清理 ${total} 条超期记录`
          : `已应用 ${days} 天保留策略，暂无超期记录需清理`,
      );
    } catch (e: unknown) {
      toast.error(e instanceof Error ? e.message : i18n.t('kubernetes.msg.applyFailed'));
    } finally {
      setApplying(false);
    }
  };

  const lastCleanupText = (() => {
    if (!settings?.last_cleanup_at) return null;
    const t = new Date(settings.last_cleanup_at).toLocaleString('zh-CN', { hour12: false });
    let detail = '';
    if (settings.last_cleanup_summary) {
      try {
        const s = JSON.parse(settings.last_cleanup_summary) as { total?: number };
        if (typeof s.total === 'number') {
          detail = s.total > 0 ? `，清理 ${s.total} 条` : i18n.t('system.useauditsetting.s7d55bd57');
        }
      } catch {
        // ignore
      }
    }
    return `上次清理：${t}${detail}`;
  })();

  return {
    retentionDays,
    setRetentionDays,
    recordAll,
    setRecordAll,
    loading,
    applying,
    handleApply,
    lastCleanupText,
    retentionOptions: settings?.allowed_retention_days ?? [...RETENTION_OPTIONS],
  };
}