import React, { useState, useEffect } from 'react';
import { Transaction, TransactionType, ExpenseCategory, IncomeCategory } from '../types';

interface EditTransactionModalProps {
  transaction: Transaction;
  onSave: (updated: Transaction) => void;
  onDelete: (id: string) => void;
  onClose: () => void;
  hideDelete?: boolean;
}

const EditTransactionModal: React.FC<EditTransactionModalProps> = ({ transaction, onSave, onDelete, onClose, hideDelete = false }) => {
  const [draft, setDraft] = useState<Transaction>(transaction);

  useEffect(() => {
    setDraft(transaction);
  }, [transaction]);

  const handleDelete = () => {
    if (confirm('确定要删除这条记录吗？崔经理会盯着你的。')) {
      onDelete(draft.id);
    }
  };

  return (
    <div className="fixed inset-0 z-[60] flex items-end md:items-center justify-center bg-black/50 backdrop-blur-sm p-4">
       <div className="bg-white w-full max-w-md rounded-2xl p-6 shadow-2xl animate-float md:animate-none">
           <div className="flex justify-between items-center mb-4">
               <h3 className="text-lg font-bold text-gray-900">编辑账单</h3>
               <button onClick={onClose} className="text-gray-400 hover:text-gray-600">
                  <svg className="w-6 h-6" fill="none" viewBox="0 0 24 24" stroke="currentColor"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" /></svg>
               </button>
           </div>
           
           <div className="space-y-4">
              <div>
                  <label className="block text-sm font-medium text-gray-700 mb-1">金额</label>
                  <input 
                      type="number" 
                      value={draft.amount} 
                      onChange={(e) => setDraft({...draft, amount: parseFloat(e.target.value) || 0})}
                      className="w-full p-3 border border-gray-200 rounded-xl focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500 outline-none font-bold text-lg bg-white shadow-sm transition-all"
                  />
              </div>
              <div>
                  <label className="block text-sm font-medium text-gray-700 mb-1">内容</label>
                  <input 
                      type="text" 
                      value={draft.item} 
                      onChange={(e) => setDraft({...draft, item: e.target.value})}
                      className="w-full p-3 border border-gray-200 rounded-xl focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500 outline-none bg-white shadow-sm transition-all"
                  />
              </div>
              <div className="flex gap-4">
                  <div className="flex-1">
                      <label className="block text-sm font-medium text-gray-700 mb-1">类型</label>
                      <select 
                          value={draft.type}
                          onChange={(e) => setDraft({
                              ...draft, 
                              type: e.target.value as TransactionType,
                              category: e.target.value === TransactionType.EXPENSE ? ExpenseCategory.MISC : IncomeCategory.OTHER
                          })}
                          className="w-full p-3 border border-gray-200 rounded-xl focus:ring-2 focus:ring-indigo-500 outline-none bg-white shadow-sm transition-all"
                      >
                          <option value={TransactionType.EXPENSE}>支出</option>
                          <option value={TransactionType.INCOME}>收入</option>
                      </select>
                  </div>
                  <div className="flex-1">
                      <label className="block text-sm font-medium text-gray-700 mb-1">分类</label>
                      <select 
                          value={draft.category}
                          onChange={(e) => setDraft({...draft, category: e.target.value})}
                          className="w-full p-3 border border-gray-200 rounded-xl focus:ring-2 focus:ring-indigo-500 outline-none bg-white shadow-sm transition-all"
                      >
                          {draft.type === TransactionType.EXPENSE 
                              ? Object.values(ExpenseCategory).map(c => <option key={c} value={c}>{c}</option>)
                              : Object.values(IncomeCategory).map(c => <option key={c} value={c}>{c}</option>)
                          }
                      </select>
                  </div>
              </div>
              <div>
                  <label className="block text-sm font-medium text-gray-700 mb-1">日期</label>
                  <input 
                      type="date" 
                      value={draft.date} 
                      onChange={(e) => setDraft({...draft, date: e.target.value})}
                      className="w-full p-3 border border-gray-200 rounded-xl focus:ring-2 focus:ring-indigo-500 outline-none bg-white shadow-sm transition-all"
                  />
              </div>

              <div className="pt-4 flex gap-3">
                  {!hideDelete && (
                    <button 
                        onClick={handleDelete}
                        className="flex-1 py-3 px-4 bg-red-50 text-red-600 rounded-xl font-semibold hover:bg-red-100 transition-colors"
                    >
                        删除
                    </button>
                  )}
                  <button 
                      onClick={() => onSave(draft)}
                      className={`py-3 px-4 bg-indigo-600 text-white rounded-xl font-semibold hover:bg-indigo-700 transition-all shadow-md shadow-indigo-200 ${hideDelete ? 'w-full' : 'flex-[2]'}`}
                  >
                      保存修改
                  </button>
              </div>
           </div>
       </div>
    </div>
  );
};

export default EditTransactionModal;