/**
 * Audio Compatibility Checker and Browser Mode Handler
 * This script helps detect and handle audio limitations in browser vs Electron mode
 */

class AudioCompatibilityChecker {
    constructor() {
        this.isElectron = window.electronAPI !== undefined;
        this.isFileProtocol = window.location.protocol === 'file:';
        this.browserAudioSupported = this.checkBrowserAudioSupport();
    }

    checkBrowserAudioSupport() {
        // Test if we can create audio elements
        try {
            const testAudio = new Audio();
            return testAudio !== null;
        } catch (error) {
            console.error('Browser does not support Audio API:', error);
            return false;
        }
    }

    async testSingleAudioFile(path) {
        return new Promise((resolve) => {
            const audio = new Audio();
            let resolved = false;
            
            const cleanup = () => {
                if (!resolved) {
                    resolved = true;
                    audio.pause();
                    audio.src = '';
                    audio.remove();
                }
            };
            
            audio.addEventListener('canplay', () => {
                if (!resolved) {
                    cleanup();
                    resolve({ success: true, path, error: null });
                }
            });
            
            audio.addEventListener('error', (e) => {
                if (!resolved) {
                    const errorInfo = {
                        code: e.target.error?.code,
                        message: e.target.error?.message,
                        networkState: e.target.networkState,
                        readyState: e.target.readyState,
                        src: e.target.src
                    };
                    cleanup();
                    resolve({ success: false, path, error: errorInfo });
                }
            });
            
            // Timeout after 3 seconds
            setTimeout(() => {
                if (!resolved) {
                    cleanup();
                    resolve({ success: false, path, error: 'timeout' });
                }
            }, 3000);
            
            // Try to load the audio
            try {
                audio.src = path;
                audio.load();
            } catch (error) {
                if (!resolved) {
                    cleanup();
                    resolve({ success: false, path, error: error.message });
                }
            }
        });
    }

    async quickAudioTest() {
        console.log('🎵 Audio Compatibility Test Starting...');
        console.log(`🎵 Environment: ${this.isElectron ? 'Electron' : 'Browser'}`);
        console.log(`🎵 Protocol: ${window.location.protocol}`);
        console.log(`🎵 Audio API Support: ${this.browserAudioSupported}`);
        
        // Test a few known audio files
        const testFiles = [
            'audio/tasks/teasing/u.mp3',
            'audio/rewards/completion/u.mp3'
        ];
        
        const results = [];
        for (const file of testFiles) {
            console.log(`🎵 Testing: ${file}`);
            const result = await this.testSingleAudioFile(file);
            results.push(result);
            
            if (result.success) {
                console.log(`✅ ${file} - Working`);
            } else {
                console.log(`❌ ${file} - Failed:`, result.error);
            }
            
            // Small delay between tests
            await new Promise(resolve => setTimeout(resolve, 100));
        }
        
        return results;
    }

    getRecommendations() {
        const recommendations = [];
        
        if (!this.isElectron && this.isFileProtocol) {
            recommendations.push({
                type: 'warning',
                message: 'Running in browser with file:// protocol',
                suggestion: 'Use "npm start" to run the Electron desktop version for full audio support'
            });
        }
        
        if (!this.browserAudioSupported) {
            recommendations.push({
                type: 'error',
                message: 'Browser does not support HTML5 Audio API',
                suggestion: 'Try a different browser or update your current browser'
            });
        }
        
        if (this.isElectron) {
            recommendations.push({
                type: 'success',
                message: 'Running in Electron desktop mode',
                suggestion: 'Audio should work without restrictions'
            });
        }
        
        return recommendations;
    }

    async diagnoseAudioIssues() {
        console.log('🎵 Audio Diagnostic Report');
        console.log('=' .repeat(50));
        
        const recommendations = this.getRecommendations();
        recommendations.forEach(rec => {
            const icon = rec.type === 'error' ? '❌' : rec.type === 'warning' ? '⚠️' : '✅';
            console.log(`${icon} ${rec.message}`);
            console.log(`   💡 ${rec.suggestion}`);
        });
        
        console.log('\n🎵 Testing Audio Files...');
        const testResults = await this.quickAudioTest();
        
        const workingFiles = testResults.filter(r => r.success).length;
        const totalFiles = testResults.length;
        
        console.log('\n🎵 Summary:');
        console.log(`✅ Working: ${workingFiles}/${totalFiles}`);
        console.log(`❌ Failed: ${totalFiles - workingFiles}/${totalFiles}`);
        
        if (workingFiles === 0) {
            console.log('\n🎵 No audio files are working. This suggests:');
            console.log('   - Browser CORS restrictions (use Electron app)');
            console.log('   - Audio files are corrupted or missing');
            console.log('   - Browser audio support issues');
        } else if (workingFiles < totalFiles) {
            console.log('\n🎵 Some audio files are working. Issues may be:');
            console.log('   - Specific file corruption');
            console.log('   - Filename/path issues');
            console.log('   - Audio format compatibility');
        } else {
            console.log('\n🎵 All tested files are working! 🎉');
        }
        
        return {
            environment: {
                isElectron: this.isElectron,
                isFileProtocol: this.isFileProtocol,
                audioSupported: this.browserAudioSupported
            },
            testResults,
            recommendations
        };
    }
}

// Auto-run diagnostic if audio issues are detected
window.audioCompatibilityChecker = new AudioCompatibilityChecker();

// Quick check for common issues
if (!window.audioCompatibilityChecker.isElectron && window.audioCompatibilityChecker.isFileProtocol) {
    console.log('🎵 Audio issues detected! Run window.audioCompatibilityChecker.diagnoseAudioIssues() for full report');
}

console.log('🎵 Audio Compatibility Checker loaded');
console.log('🎵 Run: window.audioCompatibilityChecker.diagnoseAudioIssues()');