/**
 * 🎵 MusicDevIntelligence - Music Development Intelligence
 * ======================================================
 * Handles music-specific development suggestions and code generation
 */

import { BrainConnector } from './BrainConnector';

export class MusicDevIntelligence {
    private brainConnector: BrainConnector;
    private componentTemplates: Map<string, string> = new Map();
    private learningPatterns: any[] = [];
    private isInitialized: boolean = false;

    constructor(brainConnector: BrainConnector) {
        this.brainConnector = brainConnector;
        console.log('🎵 MusicDevIntelligence created');
    }

    /**
     * 🚀 Initialize Music Intelligence
     */
    async initialize(): Promise<void> {
        console.log('🎵 Initializing Music Development Intelligence...');

        try {
            // Load component templates
            this.loadComponentTemplates();

            // Initialize learning patterns
            this.initializeLearningPatterns();

            this.isInitialized = true;
            console.log('✅ Music Development Intelligence ready');
        } catch (error) {
            console.error('❌ Music Intelligence initialization failed:', error);
            throw error;
        }
    }

    // =============================================================================
    // 🎸 GUITAR INTELLIGENCE
    // =============================================================================

    /**
     * 🎸 Enhance Guitar Analysis with Development Context
     */
    async enhanceGuitarAnalysis(brainAnalysis: any): Promise<any> {
        const enhanced = {
            ...brainAnalysis,
            developmentSuggestions: [],
            componentSuggestions: [],
            codeOptimizations: []
        };

        // Add development-specific suggestions
        enhanced.developmentSuggestions = [
            'Implement real-time chord detection using Web Audio API',
            'Add visual chord diagram components',
            'Create guitar tuner with frequency analysis',
            'Build chord progression generator'
        ];

        // Component suggestions based on analysis
        if (brainAnalysis.chords && brainAnalysis.chords.length > 0) {
            enhanced.componentSuggestions.push('ChordProgressionVisualizer');
            enhanced.componentSuggestions.push('ChordDiagramRenderer');
        }

        if (brainAnalysis.tempo) {
            enhanced.componentSuggestions.push('MetronomeComponent');
            enhanced.componentSuggestions.push('TempoAnalyzer');
        }

        // Code optimizations
        enhanced.codeOptimizations = [
            'Use AudioWorklet for low-latency audio processing',
            'Implement efficient FFT for frequency analysis',
            'Cache chord pattern recognition results'
        ];

        return enhanced;
    }

    // =============================================================================
    // 🎤 VOCAL INTELLIGENCE
    // =============================================================================

    /**
     * 🎤 Enhance Vocal Analysis with Development Context
     */
    async enhanceVocalAnalysis(brainAnalysis: any): Promise<any> {
        const enhanced = {
            ...brainAnalysis,
            developmentSuggestions: [],
            componentSuggestions: [],
            codeOptimizations: []
        };

        // Add development-specific suggestions
        enhanced.developmentSuggestions = [
            'Implement pitch tracking with autocorrelation',
            'Add vocal range visualization',
            'Create breathing pattern analyzer',
            'Build harmony generator component'
        ];

        // Component suggestions based on analysis
        if (brainAnalysis.pitch) {
            enhanced.componentSuggestions.push('PitchVisualizer');
            enhanced.componentSuggestions.push('VocalRangeDisplay');
        }

        if (brainAnalysis.breath) {
            enhanced.componentSuggestions.push('BreathingCoach');
            enhanced.componentSuggestions.push('RespiratoryAnalyzer');
        }

        // Code optimizations
        enhanced.codeOptimizations = [
            'Use real-time pitch detection algorithms',
            'Implement efficient vocal formant analysis',
            'Optimize audio buffer processing for vocals'
        ];

        return enhanced;
    }

    // =============================================================================
    // 💡 SUGGESTION ENHANCEMENT
    // =============================================================================

    /**
     * 💡 Enhance Base Suggestions with Context
     */
    async enhanceSuggestions(baseSuggestions: string[], context: any): Promise<string[]> {
        const enhanced = [...baseSuggestions];

        // Add context-aware suggestions
        if (context.recentAnalyses) {
            const recentTypes = context.recentAnalyses.map((a: any) => a.type);

            if (recentTypes.includes('guitar-components')) {
                enhanced.push('Consider implementing guitar-specific audio effects');
                enhanced.push('Add guitar tablature generation features');
            }

            if (recentTypes.includes('vocal-components')) {
                enhanced.push('Implement vocal warm-up exercise generator');
                enhanced.push('Add vocal harmony analysis tools');
            }
        }

        // Add pattern-based suggestions
        if (context.patterns?.commonComponents?.length > 0) {
            enhanced.push('Create reusable component library for common patterns');
            enhanced.push('Implement component composition patterns');
        }

        // Add performance suggestions
        enhanced.push('Optimize audio processing with Web Workers');
        enhanced.push('Implement progressive audio loading');
        enhanced.push('Add audio caching strategies');

        return enhanced.filter((suggestion, index, self) =>
            self.indexOf(suggestion) === index // Remove duplicates
        );
    }

    // =============================================================================
    // 🏗️ CODE GENERATION
    // =============================================================================

    /**
     * 🏗️ Generate Music Component Code
     */
    async generateComponentCode(componentType: 'guitar' | 'vocal' | 'audio' | 'theory'): Promise<string> {
        const template = this.componentTemplates.get(componentType);

        if (!template) {
            throw new Error(`No template found for component type: ${componentType}`);
        }

        // Get Brain analysis for context
        let analysis: any = {};
        try {
            if (componentType === 'guitar') {
                analysis = await this.brainConnector.analyzeGuitar();
            } else if (componentType === 'vocal') {
                analysis = await this.brainConnector.analyzeVocal();
            }
        } catch (error) {
            console.warn('Failed to get Brain analysis for component generation');
        }

        // Replace template variables
        return this.replaceTemplateVariables(template, {
            componentType,
            analysis,
            timestamp: new Date().toISOString()
        });
    }

    /**
     * 🔄 Replace Template Variables
     */
    private replaceTemplateVariables(template: string, context: any): string {
        let result = template;

        // Replace common variables
        result = result.replace(/\{\{componentType\}\}/g, context.componentType);
        result = result.replace(/\{\{timestamp\}\}/g, context.timestamp);

        // Replace analysis-specific variables
        if (context.analysis) {
            if (context.analysis.key) {
                result = result.replace(/\{\{defaultKey\}\}/g, context.analysis.key);
            }
            if (context.analysis.tempo) {
                result = result.replace(/\{\{defaultTempo\}\}/g, context.analysis.tempo.toString());
            }
        }

        return result;
    }

    // =============================================================================
    // 📚 LEARNING
    // =============================================================================

    /**
     * 📚 Learn from Analysis Results
     */
    async learnFromAnalysis(analysis: any): Promise<void> {
        try {
            // Store learning pattern
            const pattern = {
                type: analysis.type || 'unknown',
                timestamp: new Date(),
                patterns: this.extractLearningPatterns(analysis),
                context: analysis.context || {}
            };

            this.learningPatterns.push(pattern);

            // Keep patterns manageable
            if (this.learningPatterns.length > 50) {
                this.learningPatterns = this.learningPatterns.slice(-50);
            }

            console.log(`📚 Learned from ${analysis.type} analysis`);
        } catch (error) {
            console.warn('Learning from analysis failed:', error);
        }
    }

    /**
     * 🔍 Extract Learning Patterns
     */
    private extractLearningPatterns(analysis: any): any {
        const patterns: any = {
            components: [],
            technologies: [],
            patterns: [],
            issues: []
        };

        // Extract component patterns
        if (analysis.components) {
            patterns.components = analysis.components;
        }

        // Extract technology patterns
        if (analysis.technologies) {
            patterns.technologies = analysis.technologies;
        }

        // Extract common issues
        if (analysis.issues) {
            patterns.issues = analysis.issues;
        }

        return patterns;
    }

    // =============================================================================
    // 📝 TEMPLATE MANAGEMENT
    // =============================================================================

    /**
     * 📝 Load Component Templates
     */
    private loadComponentTemplates(): void {
        // Guitar component template
        this.componentTemplates.set('guitar', `
import React, { useState, useEffect } from 'react';

interface GuitarComponentProps {
  onChordChange?: (chord: string) => void;
  defaultKey?: string;
}

export const GuitarComponent: React.FC<GuitarComponentProps> = ({ 
  onChordChange, 
  defaultKey = '{{defaultKey}}' 
}) => {
  const [currentChord, setCurrentChord] = useState<string>('');
  const [isAnalyzing, setIsAnalyzing] = useState(false);

  useEffect(() => {
    // Initialize guitar analysis
    console.log('🎸 Guitar component initialized');
  }, []);

  const analyzeGuitar = async () => {
    setIsAnalyzing(true);
    try {
      // Implement guitar analysis logic here
      // This would integrate with your MaestroBrain
      console.log('🎸 Analyzing guitar...');
      
      // Simulate analysis
      setTimeout(() => {
        setCurrentChord('C Major');
        setIsAnalyzing(false);
        onChordChange?.('C Major');
      }, 1000);
    } catch (error) {
      console.error('Guitar analysis failed:', error);
      setIsAnalyzing(false);
    }
  };

  return (
    <div className="guitar-component">
      <h3>🎸 Guitar Analyzer</h3>
      <div className="analysis-display">
        <p>Current Chord: {currentChord || 'None detected'}</p>
        <p>Key: {defaultKey}</p>
      </div>
      <button 
        onClick={analyzeGuitar} 
        disabled={isAnalyzing}
        className="analyze-btn"
      >
        {isAnalyzing ? 'Analyzing...' : 'Analyze Guitar'}
      </button>
    </div>
  );
};

export default GuitarComponent;
`);

        // Vocal component template
        this.componentTemplates.set('vocal', `
import React, { useState, useEffect } from 'react';

interface VocalComponentProps {
  onAnalysisComplete?: (analysis: any) => void;
}

export const VocalComponent: React.FC<VocalComponentProps> = ({ 
  onAnalysisComplete 
}) => {
  const [isRecording, setIsRecording] = useState(false);
  const [analysis, setAnalysis] = useState<any>(null);

  useEffect(() => {
    console.log('🎤 Vocal component initialized');
  }, []);

  const startVocalAnalysis = async () => {
    setIsRecording(true);
    try {
      // Implement vocal analysis logic here
      console.log('🎤 Starting vocal analysis...');
      
      // Simulate analysis
      setTimeout(() => {
        const result = {
          pitch: 'A4 (440 Hz)',
          tone: 'Warm',
          breath: 'Good control'
        };
        setAnalysis(result);
        setIsRecording(false);
        onAnalysisComplete?.(result);
      }, 2000);
    } catch (error) {
      console.error('Vocal analysis failed:', error);
      setIsRecording(false);
    }
  };

  return (
    <div className="vocal-component">
      <h3>🎤 Vocal Analyzer</h3>
      {analysis && (
        <div className="analysis-results">
          <p>Pitch: {analysis.pitch}</p>
          <p>Tone: {analysis.tone}</p>
          <p>Breath: {analysis.breath}</p>
        </div>
      )}
      <button 
        onClick={startVocalAnalysis} 
        disabled={isRecording}
        className="record-btn"
      >
        {isRecording ? 'Recording...' : 'Start Vocal Analysis'}
      </button>
    </div>
  );
};

export default VocalComponent;
`);

        // Audio component template
        this.componentTemplates.set('audio', `
import React, { useState, useRef, useEffect } from 'react';

interface AudioComponentProps {
  onAudioData?: (data: Float32Array) => void;
}

export const AudioComponent: React.FC<AudioComponentProps> = ({ 
  onAudioData 
}) => {
  const [isActive, setIsActive] = useState(false);
  const audioContextRef = useRef<AudioContext | null>(null);

  useEffect(() => {
    console.log('🔊 Audio component initialized');
    return () => {
      if (audioContextRef.current) {
        audioContextRef.current.close();
      }
    };
  }, []);

  const startAudioProcessing = async () => {
    try {
      setIsActive(true);
      
      // Initialize Web Audio API
      audioContextRef.current = new (window.AudioContext || (window as any).webkitAudioContext)();
      
      // Get user media
      const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
      const source = audioContextRef.current.createMediaStreamSource(stream);
      
      // Create analyzer
      const analyzer = audioContextRef.current.createAnalyser();
      analyzer.fftSize = 2048;
      source.connect(analyzer);
      
      // Process audio data
      const dataArray = new Float32Array(analyzer.frequencyBinCount);
      const processAudio = () => {
        if (isActive) {
          analyzer.getFloatFrequencyData(dataArray);
          onAudioData?.(dataArray);
          requestAnimationFrame(processAudio);
        }
      };
      
      processAudio();
      
    } catch (error) {
      console.error('Audio processing failed:', error);
      setIsActive(false);
    }
  };

  const stopAudioProcessing = () => {
    setIsActive(false);
    if (audioContextRef.current) {
      audioContextRef.current.close();
    }
  };

  return (
    <div className="audio-component">
      <h3>🔊 Audio Processor</h3>
      <div className="controls">
        <button 
          onClick={isActive ? stopAudioProcessing : startAudioProcessing}
          className="toggle-btn"
        >
          {isActive ? 'Stop Processing' : 'Start Audio Processing'}
        </button>
      </div>
      <div className="status">
        Status: {isActive ? '🟢 Active' : '🔴 Inactive'}
      </div>
    </div>
  );
};

export default AudioComponent;
`);

        // Music theory component template
        this.componentTemplates.set('theory', `
import React, { useState } from 'react';

interface MusicTheoryComponentProps {
  defaultKey?: string;
  onProgressionChange?: (progression: string[]) => void;
}

export const MusicTheoryComponent: React.FC<MusicTheoryComponentProps> = ({ 
  defaultKey = '{{defaultKey}}',
  onProgressionChange 
}) => {
  const [currentKey, setCurrentKey] = useState(defaultKey);
  const [progression, setProgression] = useState<string[]>(['I', 'V', 'vi', 'IV']);

  const generateProgression = () => {
    // Common progressions
    const progressions = [
      ['I', 'V', 'vi', 'IV'],
      ['vi', 'IV', 'I', 'V'],
      ['I', 'vi', 'IV', 'V'],
      ['ii', 'V', 'I', 'vi']
    ];
    
    const randomProgression = progressions[Math.floor(Math.random() * progressions.length)];
    setProgression(randomProgression);
    onProgressionChange?.(randomProgression);
  };

  return (
    <div className="music-theory-component">
      <h3>🎼 Music Theory Helper</h3>
      <div className="key-selector">
        <label>Key: </label>
        <select 
          value={currentKey} 
          onChange={(e) => setCurrentKey(e.target.value)}
        >
          <option value="C">C Major</option>
          <option value="G">G Major</option>
          <option value="D">D Major</option>
          <option value="A">A Major</option>
          <option value="E">E Major</option>
          <option value="F">F Major</option>
        </select>
      </div>
      <div className="progression-display">
        <h4>Current Progression:</h4>
        <div className="chords">
          {progression.map((chord, index) => (
            <span key={index} className="chord">
              {chord}
            </span>
          ))}
        </div>
      </div>
      <button onClick={generateProgression} className="generate-btn">
        Generate New Progression
      </button>
    </div>
  );
};

export default MusicTheoryComponent;
`);

        console.log('📝 Component templates loaded');
    }

    /**
     * 📊 Initialize Learning Patterns
     */
    private initializeLearningPatterns(): void {
        // Initialize with common music development patterns
        this.learningPatterns = [
            {
                type: 'audio-processing',
                patterns: ['Web Audio API', 'AudioContext', 'MediaStream'],
                frequency: 5
            },
            {
                type: 'music-theory',
                patterns: ['chord progressions', 'scales', 'harmony'],
                frequency: 3
            },
            {
                type: 'instrument-specific',
                patterns: ['guitar', 'vocal', 'piano', 'drums'],
                frequency: 4
            }
        ];
    }

    // =============================================================================
    // 📊 STATUS & UTILITIES
    // =============================================================================

    /**
     * 📊 Get Status
     */
    getStatus(): any {
        return {
            isInitialized: this.isInitialized,
            templatesLoaded: this.componentTemplates.size,
            learningPatterns: this.learningPatterns.length,
            selfEvolution: true,  
            availableComponents: Array.from(this.componentTemplates.keys())
        };
    }

    /**
     * 📝 Get Available Templates
     */
    getAvailableTemplates(): string[] {
        return Array.from(this.componentTemplates.keys());
    }

    /**
     * 🧠 Get Learning Summary
     */
    getLearningSummary(): any {
        return {
            totalPatterns: this.learningPatterns.length,
            recentPatterns: this.learningPatterns.slice(-10),
            commonTypes: this.learningPatterns.reduce((acc, pattern) => {
                acc[pattern.type] = (acc[pattern.type] || 0) + 1;
                return acc;
            }, {} as Record<string, number>)
        };
    }
}

export default MusicDevIntelligence;