import { CommonModule } from '@angular/common';
import { Component, OnInit } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { AdminUserRow, AuthCreditService } from '../../services/auth-credit.service';

@Component({
  selector: 'app-admin-users',
  standalone: true,
  imports: [CommonModule, FormsModule],
  templateUrl: './admin-users.component.html',
  styleUrls: ['./admin-users.component.css'],
})
export class AdminUsersComponent implements OnInit {
  users: AdminUserRow[] = [];
  loading = false;
  error = '';
  message = '';
  adjustAmount: Record<string, number> = {};
  adjustNote: Record<string, string> = {};
  createForm = {
    username: '',
    password: '',
    displayName: '',
    email: '',
    phone: '',
    role: 'user' as 'user' | 'admin',
    initialCredits: 10,
  };

  constructor(public auth: AuthCreditService) {}

  ngOnInit(): void {
    this.reload();
  }

  async reload(): Promise<void> {
    if (!this.auth.isAdmin) return;
    this.loading = true;
    this.error = '';
    try {
      this.users = await this.auth.adminListUsers();
    } catch (e: any) {
      this.error = e?.message || '加载账号明细失败';
    } finally {
      this.loading = false;
    }
  }

  async adjust(user: AdminUserRow): Promise<void> {
    this.error = '';
    try {
      const amount = Number(this.adjustAmount[user.objectId] || 0);
      if (!amount) throw new Error('请输入调整积分');
      await this.auth.adminAdjustCredit(user.objectId, amount, this.adjustNote[user.objectId] || '管理员调整');
      this.adjustAmount[user.objectId] = 0;
      this.adjustNote[user.objectId] = '';
      await this.reload();
    } catch (e: any) {
      this.error = e?.message || '调整失败';
    }
  }

  async createUser(): Promise<void> {
    this.error = '';
    this.message = '';
    try {
      const user = await this.auth.adminCreateUser(this.createForm);
      this.message = `账号 ${user.username} 已创建`;
      this.createForm = {
        username: '',
        password: '',
        displayName: '',
        email: '',
        phone: '',
        role: 'user',
        initialCredits: 10,
      };
      await this.reload();
    } catch (e: any) {
      this.error = e?.message || '创建账号失败';
    }
  }
}