'use client';

import { useState } from 'react';
import { PRIORITY_LABEL } from '@/lib/constants';

interface Props {
  initialData?: { title: string; description: string; priority: number };
  onSubmit: (data: { title: string; description: string; priority: number }) => void;
  onCancel: () => void;
}

export function RequirementForm({ initialData, onSubmit, onCancel }: Props) {
  const [title, setTitle] = useState(initialData?.title || '');
  const [description, setDescription] = useState(initialData?.description || '');
  const [priority, setPriority] = useState(initialData?.priority ?? 0);

  const handleSubmit = (e: React.FormEvent) => {
    e.preventDefault();
    if (!title.trim()) return;
    onSubmit({ title: title.trim(), description: description.trim(), priority });
  };

  return (
    <form onSubmit={handleSubmit} className="space-y-4">
      <div>
        <label className="block text-sm font-medium text-gray-700">
          需求标题 <span className="text-red-500">*</span>
        </label>
        <input
          type="text"
          value={title}
          onChange={(e) => setTitle(e.target.value)}
          className="mt-1 block w-full rounded-md border border-gray-300 px-3 py-2 text-sm focus:border-blue-500 focus:outline-none focus:ring-1 focus:ring-blue-500"
          placeholder="输入需求标题"
        />
      </div>
      <div>
        <label className="block text-sm font-medium text-gray-700">描述</label>
        <textarea
          value={description}
          onChange={(e) => setDescription(e.target.value)}
          rows={4}
          className="mt-1 block w-full rounded-md border border-gray-300 px-3 py-2 text-sm focus:border-blue-500 focus:outline-none focus:ring-1 focus:ring-blue-500"
          placeholder="输入需求描述"
        />
      </div>
      <div>
        <label className="block text-sm font-medium text-gray-700">优先级</label>
        <select
          value={priority}
          onChange={(e) => setPriority(Number(e.target.value))}
          className="mt-1 block w-full rounded-md border border-gray-300 px-3 py-2 text-sm focus:border-blue-500 focus:outline-none focus:ring-1 focus:ring-blue-500"
        >
          {Object.entries(PRIORITY_LABEL).map(([value, label]) => (
            <option key={value} value={value}>{label}</option>
          ))}
        </select>
      </div>
      <div className="flex justify-end gap-3">
        <button
          type="button"
          onClick={onCancel}
          className="rounded-md border border-gray-300 px-4 py-2 text-sm text-gray-700 hover:bg-gray-50"
        >
          取消
        </button>
        <button
          type="submit"
          className="rounded-md bg-blue-600 px-4 py-2 text-sm text-white hover:bg-blue-700"
        >
          {initialData ? '保存' : '创建'}
        </button>
      </div>
    </form>
  );
}