import { Page, expect } from '@playwright/test';
import { BasePage } from './base-page';
import { testLogger } from '../core/test-logger';

export class LoginPage extends BasePage {
  private readonly selectors = {
    usernameInput: '[data-testid="username-input"]',
    passwordInput: '[data-testid="password-input"]',
    loginButton: '[data-testid="login-button"]',
    errorMessage: '.ant-message-error',
    successMessage: '.ant-message-success',
    loginForm: '[data-testid="login-form"]',
    rememberMeCheckbox: '[data-testid="remember-checkbox"]',
    forgotPasswordLink: 'text=忘记密码',
    registerLink: 'text=注册账号'
  };

  constructor(page: Page) {
    super(page);
  }

  async navigate(): Promise<void> {
    testLogger.info('导航到登录页面');
    await super.navigate('/login');
  }

  async waitForLoad(): Promise<void> {
    testLogger.debug('等待登录页面加载完成');
    
    try {
      await Promise.all([
        this.waitForElement(this.selectors.usernameInput),
        this.waitForElement(this.selectors.passwordInput),
        this.waitForElement(this.selectors.loginButton)
      ]);
      
      testLogger.info('登录页面加载完成');
    } catch (error) {
      testLogger.error('登录页面加载失败', error as Error);
      throw error;
    }
  }

  async getUsernameInput() {
    return this.page.locator(this.selectors.usernameInput);
  }

  async getPasswordInput() {
    return this.page.locator(this.selectors.passwordInput);
  }

  async getLoginButton() {
    return this.page.locator(this.selectors.loginButton);
  }

  async getErrorMessage() {
    return this.page.locator(this.selectors.errorMessage);
  }

  async getSuccessMessage() {
    return this.page.locator(this.selectors.successMessage);
  }

  async fillUsername(username: string): Promise<void> {
    testLogger.info(`填写用户名: ${username}`);
    await this.fill(this.selectors.usernameInput, username);
  }

  async fillPassword(password: string): Promise<void> {
    testLogger.info('填写密码');
    await this.fill(this.selectors.passwordInput, password);
  }

  async clickLoginButton(): Promise<void> {
    testLogger.info('点击登录按钮');
    await this.click(this.selectors.loginButton);
  }

  async toggleRememberMe(remember: boolean): Promise<void> {
    testLogger.info(`设置记住密码: ${remember}`);
    
    if (remember) {
      await this.check(this.selectors.rememberMeCheckbox);
    } else {
      await this.uncheck(this.selectors.rememberMeCheckbox);
    }
  }

  async login(username: string, password: string, rememberMe: boolean = false): Promise<void> {
    testLogger.startStep('用户登录');
    
    try {
      await this.waitForLoad();
      await this.fillUsername(username);
      await this.fillPassword(password);
      
      if (rememberMe) {
        await this.toggleRememberMe(true);
      }
      
      await this.clickLoginButton();
      
      testLogger.endStep('用户登录', 'passed');
    } catch (error) {
      testLogger.endStep('用户登录', 'failed', error as Error);
      throw error;
    }
  }

  async loginAndWaitForDashboard(username: string, password: string, rememberMe: boolean = false): Promise<void> {
    testLogger.startStep('登录并等待跳转到仪表盘');
    
    try {
      await this.login(username, password, rememberMe);
      
      await this.waitForURL(/.*dashboard/, this.timeout.navigation);
      
      testLogger.endStep('登录并等待跳转到仪表盘', 'passed');
    } catch (error) {
      testLogger.endStep('登录并等待跳转到仪表盘', 'failed', error as Error);
      throw error;
    }
  }

  async expectErrorMessage(message: string): Promise<void> {
    testLogger.debug(`期望错误消息: ${message}`);
    
    const errorLocator = this.getErrorMessage();
    await expect(errorLocator).toBeVisible({ timeout: 5000 });
    await expect(errorLocator).toContainText(message);
  }

  async expectSuccessMessage(message: string): Promise<void> {
    testLogger.debug(`期望成功消息: ${message}`);
    
    const successLocator = this.getSuccessMessage();
    await expect(successLocator).toBeVisible({ timeout: 5000 });
    await expect(successLocator).toContainText(message);
  }

  async hasErrorMessage(): Promise<boolean> {
    const errorLocator = this.getErrorMessage();
    const count = await errorLocator.count();
    return count > 0;
  }

  async hasSuccessMessage(): Promise<boolean> {
    const successLocator = this.getSuccessMessage();
    const count = await successLocator.count();
    return count > 0;
  }

  async getErrorMessageText(): Promise<string> {
    const errorLocator = this.getErrorMessage();
    const text = await errorLocator.textContent();
    return text || '';
  }

  async getSuccessMessageText(): Promise<string> {
    const successLocator = this.getSuccessMessage();
    const text = await successLocator.textContent();
    return text || '';
  }

  async isLoginButtonEnabled(): Promise<boolean> {
    const loginButton = this.getLoginButton();
    return await loginButton.isEnabled();
  }

  async isUsernameInputVisible(): Promise<boolean> {
    return await this.isVisible(this.selectors.usernameInput);
  }

  async isPasswordInputVisible(): Promise<boolean> {
    return await this.isVisible(this.selectors.passwordInput);
  }

  async isLoginFormVisible(): Promise<boolean> {
    return await this.isVisible(this.selectors.loginForm);
  }

  async clearUsername(): Promise<void> {
    testLogger.info('清空用户名输入框');
    const usernameInput = this.getUsernameInput();
    await usernameInput.fill('');
  }

  async clearPassword(): Promise<void> {
    testLogger.info('清空密码输入框');
    const passwordInput = this.getPasswordInput();
    await passwordInput.fill('');
  }

  async clearAllFields(): Promise<void> {
    await this.clearUsername();
    await this.clearPassword();
  }

  async clickForgotPassword(): Promise<void> {
    testLogger.info('点击忘记密码链接');
    await this.click(this.selectors.forgotPasswordLink);
  }

  async clickRegister(): Promise<void> {
    testLogger.info('点击注册账号链接');
    await this.click(this.selectors.registerLink);
  }

  async pressEnter(): Promise<void> {
    testLogger.info('按Enter键提交登录');
    await this.page.keyboard.press('Enter');
  }

  async loginWithEnter(username: string, password: string): Promise<void> {
    testLogger.startStep('使用Enter键登录');
    
    try {
      await this.waitForLoad();
      await this.fillUsername(username);
      await this.fillPassword(password);
      await this.pressEnter();
      
      testLogger.endStep('使用Enter键登录', 'passed');
    } catch (error) {
      testLogger.endStep('使用Enter键登录', 'failed', error as Error);
      throw error;
    }
  }

  async takeScreenshotOnLogin(name: string = 'login-page'): Promise<string> {
    return await this.takeScreenshot(name);
  }
}