/**
 * App - точка входа и инициализация
 */

(function() {
  'use strict';
  
  function init() {
    window.aiAdapter = window.aiAdapter || {};
    window.storage = window.storage || {};
    window.matcher = window.matcher || {};
    
    const savedState = window.storage.loadState();
    
    if (savedState && savedState.schemaVersion) {
      window.ui.setState({
        vacancyText: savedState.vacancyText || '',
        resumeText: savedState.resumeText || '',
        criteria: savedState.criteria || [],
        matchResults: savedState.matchResults || null,
        questions: savedState.questions || []
      });
      
      if (savedState.vacancyText) {
        const vacancyField = document.getElementById('vacancyText');
        if (vacancyField) {
          vacancyField.value = savedState.vacancyText;
        }
      }
      
      if (savedState.resumeText) {
        const resumeField = document.getElementById('resumeText');
        if (resumeField) {
          resumeField.value = savedState.resumeText;
        }
      }
    }
    
    window.ui.initUI();
    
    setupAutoSave();
    setupKeyboardNavigation();
    
    console.log('HR Candidate Matcher запущен');
  }
  
  function setupAutoSave() {
    setInterval(() => {
      const state = window.ui.getState();
      
      const toSave = {
        vacancyText: state.vacancyText,
        resumeText: state.resumeText,
        criteria: state.criteria,
        matchResults: state.matchResults,
        questions: state.questions
      };
      
      window.storage.saveState(toSave);
    }, 5000);
    
    document.getElementById('vacancyText')?.addEventListener('blur', () => {
      const state = window.ui.getState();
      window.storage.saveState({ vacancyText: state.vacancyText });
    });
    
    document.getElementById('resumeText')?.addEventListener('blur', () => {
      const state = window.ui.getState();
      window.storage.saveState({ resumeText: state.resumeText });
    });
  }
  
  function setupKeyboardNavigation() {
    document.addEventListener('keydown', (e) => {
      if (e.key === 'Escape') {
        const currentState = window.ui.getState().currentScreen;
        if (currentState === 'interview') {
          window.ui.navigateTo('match');
        } else if (currentState === 'match') {
          window.ui.navigateTo('criteria');
        } else if (currentState === 'criteria') {
          window.ui.navigateTo('input');
        }
      }
      
      if ((e.ctrlKey || e.metaKey) && e.key === 'Enter') {
        const currentState = window.ui.getState().currentScreen;
        if (currentState === 'input') {
          document.getElementById('btnExtract')?.click();
        } else if (currentState === 'criteria') {
          document.getElementById('btnApplyCriteria')?.click();
        }
      }
      
      if ((e.ctrlKey || e.metaKey) && e.key === 's') {
        e.preventDefault();
        const state = window.ui.getState();
        const saved = window.storage.saveState({
          vacancyText: state.vacancyText,
          resumeText: state.resumeText,
          criteria: state.criteria,
          matchResults: state.matchResults,
          questions: state.questions
        });
        
        if (saved) {
          window.ui.showNotification('Данные сохранены', 'success');
        } else {
          window.ui.showNotification('Ошибка сохранения', 'error');
        }
      }
    });
  }
  
  function checkBrowserSupport() {
    const issues = [];
    
    if (!window.localStorage) {
      issues.push('localStorage недоступен');
    }
    
    if (!window.navigator.clipboard) {
      console.warn('Clipboard API недоступен — копирование будет работать через выделение текста');
    }
    
    if (!window.Blob) {
      issues.push('Blob не поддерживается — экспорт не будет работать');
    }
    
    if (!window.URL) {
      issues.push('URL.createObjectURL не поддерживается — скачивание не будет работать');
    }
    
    if (issues.length > 0) {
      console.warn('Проблемы с поддержкой браузера:', issues.join(', '));
      window.ui.showNotification(
        'Внимание: Некоторые функции могут работать нестабильно',
        'error'
      );
    }
    
    return issues.length === 0;
  }
  
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', () => {
      checkBrowserSupport();
      init();
    });
  } else {
    checkBrowserSupport();
    init();
  }
})();