import { useState, useEffect } from 'react';
import { X, Trash2, Play, Bookmark, Clock } from 'lucide-react';
import type { SavedQuery } from './types-v3';
import { savedQueryStorage } from './types-v3';
import { ENGINE_META } from './types-v3';

interface Props {
  visible: boolean;
  onClose: () => void;
  onSelect: (item: SavedQuery) => void;
}

// 已保存查询面板（localStorage）// Logan.Li
export function SavedQueriesPanel({ visible, onClose, onSelect }: Props) {
  const [items, setItems] = useState<SavedQuery[]>([]);

  useEffect(() => {
    if (visible) setItems(savedQueryStorage.getAll());
  }, [visible]);

  if (!visible) return null;

  return (
    <>
      <div className="fixed inset-0 z-40" style={{ background: 'rgba(0,0,0,0.3)' }} onClick={onClose} />
      <div
        className="fixed right-0 top-0 h-full z-50 border-l flex flex-col"
        style={{ width: '380px', background: 'var(--dg-bg-secondary)', borderColor: 'var(--dg-border)' }}
      >
        <div className="flex items-center justify-between px-4 py-3 border-b" style={{ borderColor: 'var(--dg-border)' }}>
          <div className="flex items-center gap-2">
            <Bookmark className="h-4 w-4" style={{ color: 'var(--dg-blue)' }} />
            <span className="text-sm font-medium" style={{ color: 'var(--dg-text-primary)' }}>已保存查询</span>
            <span className="text-[10px] px-1.5 py-0.5 rounded" style={{ background: 'var(--dg-bg-tertiary)', color: 'var(--dg-text-muted)' }}>
              {items.length}
            </span>
          </div>
          <button onClick={onClose} className="h-7 w-7 flex items-center justify-center" style={{ color: 'var(--dg-text-muted)' }}>
            <X className="h-4 w-4" />
          </button>
        </div>
        <div className="flex-1 overflow-y-auto p-3 space-y-2">
          {items.length === 0 ? (
            <p className="text-xs text-center py-8" style={{ color: 'var(--dg-text-muted)' }}>暂无保存的查询</p>
          ) : items.map((item) => (
            <div
              key={item.id}
              className="p-3 rounded-lg border group"
              style={{ background: 'var(--dg-bg-tertiary)', borderColor: 'var(--dg-border)' }}
            >
              <div className="flex items-start justify-between gap-2">
                <div className="min-w-0 flex-1">
                  <p className="text-sm font-medium truncate" style={{ color: 'var(--dg-text-primary)' }}>{item.name}</p>
                  <p className="text-[10px] mt-0.5" style={{ color: ENGINE_META[item.engine]?.color || 'var(--dg-text-muted)' }}>
                    {ENGINE_META[item.engine]?.name} · {item.timeRangeLabel}
                  </p>
                  <p className="text-[11px] font-mono mt-1 truncate" style={{ color: 'var(--dg-text-secondary)' }}>{item.query}</p>
                  <p className="text-[10px] mt-1 flex items-center gap-1" style={{ color: 'var(--dg-text-muted)' }}>
                    <Clock className="h-3 w-3" />
                    {new Date(item.createdAt).toLocaleString()}
                  </p>
                </div>
                <div className="flex flex-col gap-1 opacity-80 group-hover:opacity-100">
                  <button
                    onClick={() => { onSelect(item); onClose(); }}
                    className="h-7 w-7 flex items-center justify-center rounded border"
                    style={{ borderColor: 'var(--dg-border)', color: '#22c55e' }}
                    title="应用"
                  >
                    <Play className="h-3.5 w-3.5" />
                  </button>
                  <button
                    onClick={() => { savedQueryStorage.remove(item.id); setItems(savedQueryStorage.getAll()); }}
                    className="h-7 w-7 flex items-center justify-center rounded border"
                    style={{ borderColor: 'var(--dg-border)', color: 'var(--dg-text-muted)' }}
                    title="删除"
                  >
                    <Trash2 className="h-3.5 w-3.5" />
                  </button>
                </div>
              </div>
            </div>
          ))}
        </div>
      </div>
    </>
  );
}