import { mockI18nSuccess, mockAllRequiredAPIs } from '../../support/mock/handlers/i18n';
import LoginPage from '../../support/pageObjects/LoginPage';

describe('多语言资源语言切换测试', () => {
  const loginPage = new LoginPage();

  beforeEach(() => {
    cy.clearAllSessionStorage();
    cy.clearAllLocalStorage();
    
    // Mock所有必要的API，避免影响页面加载
    mockAllRequiredAPIs();
  });

  it('从中文切换到英文', () => {
    // 首先加载中文
    mockI18nSuccess('zh');
    
    cy.window().then((win) => {
      Object.defineProperty(win.navigator, 'language', {
        value: 'zh-CN',
        writable: false
      });
    });
    
    loginPage.visit();
    
    cy.wait('@getI18nZHSuccess');
    
    // 验证中文内容显示
    cy.get('body').should('contain', '患者管理');
    
    // 验证Redux状态为中文
    cy.window().its('store').invoke('getState').then((state) => {
      expect(state.i18n.currentLocale).to.equal('zh');
      expect(state.i18n.messages).to.have.property('patient', '患者管理');
    });
    
    // 模拟语言切换 - 重新访问页面并设置英文语言
    mockI18nSuccess('en');
    
    cy.window().then((win) => {
      Object.defineProperty(win.navigator, 'language', {
        value: 'en-US',
        writable: false
      });
    });
    
    loginPage.visit();
    
    cy.wait('@getI18nENSuccess');
    
    // 验证英文内容显示
    cy.get('body').should('contain', 'Patient Management');
    
    // 验证Redux状态为英文
    cy.window().its('store').invoke('getState').then((state) => {
      expect(state.i18n.currentLocale).to.equal('en');
      expect(state.i18n.messages).to.have.property('patient', 'Patient Management');
    });
  });

  it('从英文切换到中文', () => {
    // 首先加载英文
    mockI18nSuccess('en');
    
    cy.window().then((win) => {
      Object.defineProperty(win.navigator, 'language', {
        value: 'en-US',
        writable: false
      });
    });
    
    loginPage.visit();
    
    cy.wait('@getI18nENSuccess');
    
    // 验证英文内容显示
    cy.get('body').should('contain', 'Patient Management');
    
    // 模拟语言切换到中文
    mockI18nSuccess('zh');
    
    cy.window().then((win) => {
      Object.defineProperty(win.navigator, 'language', {
        value: 'zh-CN',
        writable: false
      });
    });
    
    loginPage.visit();
    
    cy.wait('@getI18nZHSuccess');
    
    // 验证中文内容显示
    cy.get('body').should('contain', '患者管理');
    
    // 验证Redux状态正确更新
    cy.window().its('store').invoke('getState').then((state) => {
      expect(state.i18n.currentLocale).to.equal('zh');
      expect(state.i18n.messages).to.have.property('patient', '患者管理');
    });
  });

  it('验证不同地区变体的语言检测', () => {
    const testCases = [
      // 中文变体都应该加载中文资源
      { browserLang: 'zh', expectedLocale: 'zh', expectedText: '患者管理' },
      { browserLang: 'zh-CN', expectedLocale: 'zh', expectedText: '患者管理' },
      { browserLang: 'zh-TW', expectedLocale: 'zh', expectedText: '患者管理' },
      { browserLang: 'zh-HK', expectedLocale: 'zh', expectedText: '患者管理' },
      { browserLang: 'zh-SG', expectedLocale: 'zh', expectedText: '患者管理' },
      
      // 英文变体都应该加载英文资源
      { browserLang: 'en', expectedLocale: 'en', expectedText: 'Patient Management' },
      { browserLang: 'en-US', expectedLocale: 'en', expectedText: 'Patient Management' },
      { browserLang: 'en-GB', expectedLocale: 'en', expectedText: 'Patient Management' },
      { browserLang: 'en-AU', expectedLocale: 'en', expectedText: 'Patient Management' },
      { browserLang: 'en-CA', expectedLocale: 'en', expectedText: 'Patient Management' }
    ];

    testCases.forEach(({ browserLang, expectedLocale, expectedText }, index) => {
      mockI18nSuccess(expectedLocale as 'zh' | 'en');
      
      cy.window().then((win) => {
        Object.defineProperty(win.navigator, 'language', {
          value: browserLang,
          writable: false
        });
      });
      
      loginPage.visit();
      
      cy.wait(`@getI18n${expectedLocale.toUpperCase()}Success`);
      
      // 验证正确的语言内容显示
      cy.get('body').should('contain', expectedText);
      
      // 验证Redux状态
      cy.window().its('store').invoke('getState').then((state) => {
        expect(state.i18n.currentLocale).to.equal(expectedLocale);
      });
      
      // 清理，准备下一个测试
      if (index < testCases.length - 1) {
        cy.clearAllSessionStorage();
        cy.clearAllLocalStorage();
      }
    });
  });

  it('验证语言切换时的加载状态', () => {
    // 首先加载中文
    mockI18nSuccess('zh');
    
    cy.window().then((win) => {
      Object.defineProperty(win.navigator, 'language', {
        value: 'zh-CN',
        writable: false
      });
    });
    
    loginPage.visit();
    
    cy.wait('@getI18nZHSuccess');
    cy.get('body').should('contain', '患者管理');
    
    // 切换到英文，验证加载过程
    mockI18nSuccess('en');
    
    cy.window().then((win) => {
      Object.defineProperty(win.navigator, 'language', {
        value: 'en-US',
        writable: false
      });
    });
    
    loginPage.visit();
    
    // 验证加载状态显示
    cy.contains('加载多语言资源中...').should('be.visible');
    
    // 等待加载完成
    cy.wait('@getI18nENSuccess');
    
    // 验证加载状态消失，新语言内容显示
    cy.contains('加载多语言资源中...').should('not.exist');
    cy.get('body').should('contain', 'Patient Management');
  });

  it('验证语言切换时Redux状态的完整性', () => {
    // 加载中文
    mockI18nSuccess('zh');
    
    cy.window().then((win) => {
      Object.defineProperty(win.navigator, 'language', {
        value: 'zh-CN',
        writable: false
      });
    });
    
    loginPage.visit();
    
    cy.wait('@getI18nZHSuccess');
    
    // 验证中文状态
    cy.window().its('store').invoke('getState').then((state) => {
      expect(state.i18n.currentLocale).to.equal('zh');
      expect(state.i18n.loading).to.be.false;
      expect(state.i18n.error).to.be.null;
      expect(state.i18n.messages).to.have.property('register', '注册');
      expect(state.i18n.messages).to.have.property('worklist', '任务清单');
    });
    
    // 切换到英文
    mockI18nSuccess('en');
    
    cy.window().then((win) => {
      Object.defineProperty(win.navigator, 'language', {
        value: 'en-US',
        writable: false
      });
    });
    
    loginPage.visit();
    
    cy.wait('@getI18nENSuccess');
    
    // 验证英文状态完全替换了中文状态
    cy.window().its('store').invoke('getState').then((state) => {
      expect(state.i18n.currentLocale).to.equal('en');
      expect(state.i18n.loading).to.be.false;
      expect(state.i18n.error).to.be.null;
      expect(state.i18n.messages).to.have.property('register', 'Register');
      expect(state.i18n.messages).to.have.property('worklist', 'Task List');
      // 确保中文内容已被替换
      expect(state.i18n.messages.register).to.not.equal('注册');
      expect(state.i18n.messages.worklist).to.not.equal('任务清单');
    });
  });

  it('验证快速语言切换的稳定性', () => {
    // 快速切换多次语言，验证系统稳定性
    const switchSequence = [
      { lang: 'zh-CN', locale: 'zh', text: '患者管理' },
      { lang: 'en-US', locale: 'en', text: 'Patient Management' },
      { lang: 'zh-TW', locale: 'zh', text: '患者管理' },
      { lang: 'en-GB', locale: 'en', text: 'Patient Management' },
      { lang: 'zh-CN', locale: 'zh', text: '患者管理' }
    ];

    switchSequence.forEach(({ lang, locale, text }, index) => {
      mockI18nSuccess(locale as 'zh' | 'en');
      
      cy.window().then((win) => {
        Object.defineProperty(win.navigator, 'language', {
          value: lang,
          writable: false
        });
      });
      
      loginPage.visit();
      
      cy.wait(`@getI18n${locale.toUpperCase()}Success`);
      cy.get('body').should('contain', text);
      
      // 验证每次切换后状态都正确
      cy.window().its('store').invoke('getState').then((state) => {
        expect(state.i18n.currentLocale).to.equal(locale);
        expect(state.i18n.loading).to.be.false;
        expect(state.i18n.error).to.be.null;
      });
    });
  });
});