/**
 * 邀请码验证服务
 */
import * as vscode from 'vscode';
import { verifyInvitationCode, checkInvitationStatus } from './apiClient';

/**
 * 邀请码验证服务类
 */
export class InvitationService {
  /**
   * 检查用户是否已验证邀请码
   */
  static async isVerified(context: vscode.ExtensionContext): Promise<boolean> {
    // 【临时】使用本地验证，不调用后端
    const localVerified = context.globalState.get<boolean>('invitationCodeVerified');
    return localVerified || false;
  }

  /**
   * 验证邀请码
   */
  static async verifyCode(code: string): Promise<{ success: boolean; message: string }> {
    try {
      console.log('[InvitationService] ========== 开始验证邀请码 ==========');
      console.log('[InvitationService] 邀请码:', code);
      console.log('[InvitationService] 邀请码长度:', code.length);

      const response = await verifyInvitationCode(code);

      console.log('[InvitationService] 收到响应:', JSON.stringify(response, null, 2));
      console.log('[InvitationService] 响应代码:', response.code);
      console.log('[InvitationService] 响应消息:', response.msg);
      console.log('[InvitationService] 验证结果:', response.data?.verified);

      if (response.code === 200 && response.data?.verified) {
        console.log('[InvitationService] ✓ 验证成功');
        return {
          success: true,
          message: response.msg || '验证成功'
        };
      } else {
        console.log('[InvitationService] ✗ 验证失败');
        return {
          success: false,
          message: response.msg || '验证失败'
        };
      }
    } catch (error: any) {
      console.error('[InvitationService] ========== 验证邀请码异常 ==========');
      console.error('[InvitationService] 错误类型:', error.constructor.name);
      console.error('[InvitationService] 错误消息:', error.message);
      console.error('[InvitationService] 错误堆栈:', error.stack);
      return {
        success: false,
        message: error.message || '网络连接失败，请检查网络后重试'
      };
    }
  }

  /**
   * 保存验证状态到本地
   */
  static async saveVerificationStatus(
    context: vscode.ExtensionContext,
    code: string,
    verifiedTime?: string
  ): Promise<void> {
    await context.globalState.update('invitationCodeVerified', true);
    await context.globalState.update('invitationCode', code);
    await context.globalState.update('invitationVerifiedTime', verifiedTime || new Date().toISOString());
  }

  /**
   * 清除验证状态（用于退出登录或更换邀请码）
   */
  static async clearVerificationStatus(context: vscode.ExtensionContext): Promise<void> {
    await context.globalState.update('invitationCodeVerified', undefined);
    await context.globalState.update('invitationCode', undefined);
    await context.globalState.update('invitationVerifiedTime', undefined);
  }

  /**
   * 显示邀请码输入弹窗
   */
  static async showInputDialog(): Promise<string | undefined> {
    const code = await vscode.window.showInputBox({
      prompt: '请输入邀请码以继续使用 IC Coder',
      placeHolder: '例如：INVITE2024ABC',
      ignoreFocusOut: true,
      validateInput: (value) => {
        if (!value || value.trim().length === 0) {
          return '邀请码不能为空';
        }
        if (value.trim().length < 6) {
          return '邀请码格式不正确';
        }
        return null;
      }
    });

    return code?.trim();
  }
}