/**
 * BrowserLLMLauncher.js
 * 
 * Opens AI chat interfaces directly in the browser.
 * No API keys required - uses user's existing sessions.
 * 
 * Supported:
 * - ChatGPT (chat.openai.com)
 * - Gemini (gemini.google.com)
 * - Claude (claude.ai)
 * - Perplexity (perplexity.ai)
 * - Poe (poe.com)
 * - Grok (x.ai/grok)
 * - DeepSeek (chat.deepseek.com)
 * - Local Ollama (localhost:11434)
 */

class BrowserLLMLauncher {
  constructor() {
    this.providers = {
      chatgpt: {
        name: 'ChatGPT',
        url: 'https://chat.openai.com',
        searchUrl: 'https://chat.openai.com/?q=',
        icon: '🤖',
        color: '#10a37f',
        promptMethod: 'clipboard'
      },
      gemini: {
        name: 'Gemini',
        url: 'https://gemini.google.com',
        searchUrl: 'https://gemini.google.com/?query=',
        icon: '✨',
        color: '#4285f4',
        promptMethod: 'clipboard'
      },
      claude: {
        name: 'Claude',
        url: 'https://claude.ai',
        searchUrl: 'https://claude.ai/?q=',
        icon: '🧠',
        color: '#d4a574',
        promptMethod: 'clipboard'
      },
      perplexity: {
        name: 'Perplexity',
        url: 'https://perplexity.ai',
        searchUrl: 'https://perplexity.ai/?q=',
        icon: '🔍',
        color: '#20b2aa',
        promptMethod: 'clipboard'
      },
      poe: {
        name: 'Poe',
        url: 'https://poe.com',
        searchUrl: 'https://poe.com/?q=',
        icon: '🦊',
        color: '#6b5ce7',
        promptMethod: 'clipboard'
      },
      grok: {
        name: 'Grok',
        url: 'https://x.ai/grok',
        searchUrl: 'https://x.ai/grok?q=',
        icon: '🚀',
        color: '#000000',
        promptMethod: 'clipboard'
      },
      deepseek: {
        name: 'DeepSeek',
        url: 'https://chat.deepseek.com',
        searchUrl: 'https://chat.deepseek.com/?q=',
        icon: '🔭',
        color: '#0066cc',
        promptMethod: 'clipboard'
      },
      ollama: {
        name: 'Ollama (Local)',
        url: 'http://localhost:11434',
        searchUrl: 'http://localhost:11434/?q=',
        icon: '💻',
        color: '#9333ea',
        promptMethod: 'web'
      }
    };

    this.activeProviders = ['chatgpt', 'gemini'];
    this.clipboardFallback = true;
    this.showNotification = true;
  }

  setActiveProviders(providers) {
    this.activeProviders = providers.filter(p => this.providers[p]);
  }

  getActiveProviders() {
    return this.activeProviders.map(key => ({
      key,
      ...this.providers[key]
    }));
  }

  async copyToClipboard(text) {
    try {
      await navigator.clipboard.writeText(text);
      return true;
    } catch (err) {
      console.error('Failed to copy to clipboard:', err);
      return false;
    }
  }

  async launchProvider(providerKey, prompt, options = {}) {
    const provider = this.providers[providerKey];
    if (!provider) {
      console.error(`Unknown provider: ${providerKey}`);
      return { success: false, error: 'Unknown provider' };
    }

    const finalPrompt = options.customPrompt || prompt;
    let url = provider.url;

    if (finalPrompt && provider.promptMethod === 'clipboard') {
      await this.copyToClipboard(finalPrompt);
      
      if (this.showNotification) {
        this.showBrowserNotification(
          provider.name,
          `Copied prompt! Paste in ${provider.name}`,
          provider.icon
        );
      }
    }

    if (finalPrompt && provider.searchUrl) {
      const encodedPrompt = encodeURIComponent(finalPrompt.substring(0, 500));
      url = provider.searchUrl + encodedPrompt;
    }

    const features = 'width=1200,height=800,scrollbars=yes,resizable=yes';
    const newWindow = window.open(url, `_blank`, features);

    if (!newWindow) {
      return {
        success: false,
        error: 'Popup blocked. Please allow popups for this site.'
      };
    }

    return {
      success: true,
      provider: providerKey,
      providerName: provider.name,
      url: url,
      prompt: finalPrompt,
      method: provider.promptMethod
    };
  }

  async launchAll(prompt, options = {}) {
    const results = [];
    
    for (const providerKey of this.activeProviders) {
      const result = await this.launchProvider(providerKey, prompt, options);
      results.push(result);
      
      await new Promise(resolve => setTimeout(resolve, 500));
    }
    
    return results;
  }

  async launchWithGesture(gestureType, prompt, context = {}) {
    const results = [];

    switch (gestureType) {
      case '2_finger_swipe_right':
        results.push(...await this.launchAll(prompt, { gesture: gestureType }));
        break;

      case '2_finger_swipe_left':
        const defaultProvider = this.activeProviders[0];
        results.push(await this.launchProvider(defaultProvider, prompt, { gesture: gestureType }));
        break;

      case '1_finger_tap':
        results.push(...await this.launchAll(prompt, { gesture: gestureType, rlMode: true }));
        break;

      case 'pinch':
        const lastProvider = this.activeProviders[this.activeProviders.length - 1];
        results.push(await this.launchProvider(lastProvider, prompt, { gesture: gestureType }));
        break;

      case 'swipe_up':
        results.push(...await this.launchAll(prompt, { gesture: gestureType }));
        break;

      case 'swipe_down':
        const focusedPrompt = `Focus on: ${context.topic || prompt}`;
        results.push(...await this.launchAll(focusedPrompt, { gesture: gestureType }));
        break;

      default:
        results.push(...await this.launchAll(prompt, { gesture: gestureType }));
    }

    return results;
  }

  showBrowserNotification(title, message, icon = '🤖') {
    if ('Notification' in window) {
      if (Notification.permission === 'granted') {
        new Notification(`${icon} ${title}`, {
          body: message,
          icon: '/favicon.ico'
        });
      } else if (Notification.permission !== 'denied') {
        Notification.requestPermission().then(permission => {
          if (permission === 'granted') {
            new Notification(`${icon} ${title}`, {
              body: message,
              icon: '/favicon.ico'
            });
          }
        });
      }
    }

    this.showToast(message, 'info');
  }

  showToast(message, type = 'info') {
    const toast = document.createElement('div');
    toast.className = `llm-toast llm-toast-${type}`;
    toast.innerHTML = `
      <span>${message}</span>
      <button onclick="this.parentElement.remove()">×</button>
    `;
    document.body.appendChild(toast);
    
    setTimeout(() => {
      toast.classList.add('show');
    }, 10);
    
    setTimeout(() => {
      toast.classList.remove('show');
      setTimeout(() => toast.remove(), 300);
    }, 3000);
  }

  checkProviderStatus() {
    const status = {};
    
    for (const [key, provider] of Object.entries(this.providers)) {
      status[key] = {
        available: true,
        url: provider.url,
        name: provider.name
      };
    }
    
    return status;
  }

  getInstructions() {
    return `
      To use browser-based LLM launching:

      1. Make sure you're logged into the AI services you want to use
      2. Allow popups for this site
      3. Use hand gestures to trigger queries

      When a gesture is detected:
      - The prompt will be copied to your clipboard
      - The AI chat interface will open in a new tab
      - Just paste (Ctrl+V) to send the prompt!

      Supported services:
      ${Object.values(this.providers).map(p => `- ${p.name}: ${p.url}`).join('\n')}
    `;
  }
}

class GesturePromptBuilder {
  constructor() {
    this.templates = {
      learning_explain: (context) => `Explain ${context.topic || 'this concept'} in simple terms.`,
      
      doubt_resolution: (context) => {
        let prompt = `I need help understanding: ${context.doubt || context.topic || 'this concept'}\n\n`;
        prompt += `I've tried: ${context.attempted || 'reading the material'}\n`;
        prompt += `What specifically confuses me is: ${context.confusion || 'the underlying concept'}`;
        return prompt;
      },
      
      summarize: (context) => `Summarize the key points about ${context.topic || 'this topic'} in a way that's easy to understand.`,
      
      practice: (context) => `Generate 5 practice questions about ${context.topic || 'this topic'} to test my understanding.`,
      
      compare: (context) => `Compare and contrast ${context.concept_a || 'concept A'} and ${context.concept_b || 'concept B'}.`,
      
      real_world: (context) => `Explain ${context.topic || 'this concept'} using real-world examples that a beginner would understand.`,
      
      step_by_step: (context) => `Break down ${context.topic || 'this concept'} into simple, easy-to-follow steps.`,
      
      common_mistakes: (context) => `What are the most common mistakes people make when learning about ${context.topic || 'this'}? How can I avoid them?`
    };
  }

  build(gesture, context) {
    const template = this.templates[context.template] || this.templates.learning_explain;
    return template(context);
  }

  buildFromGestures(gestures, context) {
    const prompts = [];
    
    for (const gesture of gestures) {
      const type = this.getGesturePromptType(gesture);
      const prompt = this.build(type, context);
      prompts.push({ gesture, prompt });
    }
    
    return prompts;
  }

  getGesturePromptType(gesture) {
    if (gesture.includes('swipe_right')) return 'learning_explain';
    if (gesture.includes('swipe_left')) return 'doubt_resolution';
    if (gesture.includes('swipe_up')) return 'summarize';
    if (gesture.includes('swipe_down')) return 'step_by_step';
    if (gesture.includes('pinch')) return 'real_world';
    if (gesture.includes('tap') || gesture.includes('1_finger')) return 'practice';
    return 'learning_explain';
  }
}

window.BrowserLLMLauncher = BrowserLLMLauncher;
window.GesturePromptBuilder = GesturePromptBuilder;

export default BrowserLLMLauncher;
export { BrowserLLMLauncher, GesturePromptBuilder };