/**
 * 用途:新建用户表单弹窗(用户名/显示名称/密码/邮箱/角色)
 * 必需 props:onClose(关闭)、onCreated(创建成功后回调,页面负责关窗并刷新列表)
 * 已知限制:成功 toast 沿用原有反馈点,由本组件内部触发
 */

import { useState } from 'react';
import { userApi } from '@/api/user';
import { toast } from '@/hooks/useToast';
import { ModalOverlay } from '@/components/ModalOverlay';
import { validateUserForm } from '../utils';
import type { FormErrors } from '../types';

interface CreateUserModalProps {
  onClose: () => void;
  onCreated: () => void;
}

export function CreateUserModal({ onClose, onCreated }: CreateUserModalProps) {
  const [username, setUsername] = useState('');
  const [displayName, setDisplayName] = useState('');
  const [password, setPassword] = useState('');
  const [email, setEmail] = useState('');
  const [role, setRole] = useState('developer');
  const [submitting, setSubmitting] = useState(false);
  const [errors, setErrors] = useState<FormErrors>({});

  const handleSubmit = async () => {
    const validation = validateUserForm({ username, password, email });
    setErrors(validation);
    if (Object.keys(validation).length > 0) return;

    setSubmitting(true);
    try {
      await userApi.create({ username, display_name: displayName, password, email: email || undefined, role });
      toast('success', '用户创建成功');
      onCreated();
    } catch (e: any) {
      toast('error', e?.response?.data?.detail || '创建失败');
    } finally {
      setSubmitting(false);
    }
  };

  return (
    <ModalOverlay open={true} onClose={onClose} width="md">
      <div className="w-full">
        <div className="flex items-center justify-between mb-5">
          <h2 className="text-base font-semibold">新建用户</h2>
        </div>
        <div className="space-y-4">
          <div>
            <label className="block text-sm font-medium mb-1">用户名 *</label>
            <input
              value={username}
              onChange={(e) => {
                setUsername(e.target.value);
                if (errors.username) setErrors((p) => ({ ...p, username: undefined }));
              }}
              className={`w-full px-3 py-2 bg-[var(--dg-bg-tertiary)] border rounded-lg text-sm focus:border-blue-400 focus:outline-none ${errors.username ? 'border-red-400' : 'border-[var(--dg-border)]'}`}
              placeholder="3-30位字母、数字或下划线"
            />
            {errors.username && <p className="text-xs text-red-400 mt-1">{errors.username}</p>}
          </div>
          <div>
            <label className="block text-sm font-medium mb-1">显示名称</label>
            <input
              value={displayName}
              onChange={(e) => setDisplayName(e.target.value)}
              className="w-full px-3 py-2 bg-[var(--dg-bg-tertiary)] border border-[var(--dg-border)] rounded-lg text-sm focus:border-blue-400 focus:outline-none"
              placeholder="用户的显示名称"
            />
          </div>
          <div>
            <label className="block text-sm font-medium mb-1">密码 *</label>
            <input
              type="password"
              value={password}
              onChange={(e) => {
                setPassword(e.target.value);
                if (errors.password) setErrors((p) => ({ ...p, password: undefined }));
              }}
              className={`w-full px-3 py-2 bg-[var(--dg-bg-tertiary)] border rounded-lg text-sm focus:border-blue-400 focus:outline-none ${errors.password ? 'border-red-400' : 'border-[var(--dg-border)]'}`}
              placeholder="至少6位"
            />
            {errors.password && <p className="text-xs text-red-400 mt-1">{errors.password}</p>}
          </div>
          <div>
            <label className="block text-sm font-medium mb-1">邮箱</label>
            <input
              type="email"
              value={email}
              onChange={(e) => {
                setEmail(e.target.value);
                if (errors.email) setErrors((p) => ({ ...p, email: undefined }));
              }}
              className={`w-full px-3 py-2 bg-[var(--dg-bg-tertiary)] border rounded-lg text-sm focus:border-blue-400 focus:outline-none ${errors.email ? 'border-red-400' : 'border-[var(--dg-border)]'}`}
              placeholder="example@company.com"
            />
            {errors.email && <p className="text-xs text-red-400 mt-1">{errors.email}</p>}
          </div>
          <div>
            <label className="block text-sm font-medium mb-1">角色</label>
            <select
              value={role}
              onChange={(e) => setRole(e.target.value)}
              className="w-full px-3 py-2 bg-[var(--dg-bg-tertiary)] border border-[var(--dg-border)] rounded-lg text-sm focus:border-blue-400 focus:outline-none"
            >
              <option value="admin">超级管理员</option>
              <option value="dba">数据库管理员</option>
              <option value="developer">开发人员</option>
              <option value="auditor">审计员</option>
            </select>
          </div>
          <div className="flex justify-end gap-3 pt-2">
            <button onClick={onClose} className="dg-btn dg-btn-secondary dg-btn-sm">
              取消
            </button>
            <button onClick={handleSubmit} disabled={submitting} className="dg-btn dg-btn-primary dg-btn-sm">
              {submitting ? '创建中...' : '创建'}
            </button>
          </div>
        </div>
      </div>
    </ModalOverlay>
  );
}