dev_test/advanced-typescript.ts

// 🎯 Advanced TypeScript Test File - Complex Types and Patterns
// ═══════════════════════════════════════════════════════════════

/**
 * 🚀 Comprehensive TypeScript Testing Suite
 * 📊 Advanced types, interfaces, generics, decorators with emojis
 * 🔥 Complex patterns for thorough emoji cleaning testing
 */

// 🌟 Type imports and declarations
type EmojiStatus = '🟢 Active' | '🟡 Pending' | '🔴 Inactive' | '⚫ Disabled';
type NotificationLevel = '🔔 Info' | '⚠️ Warning' | '❌ Error' | '✅ Success';
type ProcessingState = '⏳ Loading' | '🔄 Processing' | '✅ Complete' | '❌ Failed';

// 💡 Advanced interface with emoji-enriched properties
interface EmojiUser {
    readonly id: string;
    name: string;
    email: string;
    status: EmojiStatus;
    avatar?: string;
    
    // 🎯 Nested configuration with emoji indicators
    preferences: {
        theme: '🌙 Dark' | '☀️ Light' | '🌈 Auto';
        language: '🇺🇸 English' | '🇹🇭 Thai' | '🇯🇵 Japanese';
        notifications: {
            email: '✅ Enabled' | '❌ Disabled';
            push: '🔔 On' | '🔕 Off';
            desktop: '💻 Active' | '💻 Inactive';
        };
        privacy: {
            profileVisibility: '🌐 Public' | '🔒 Private' | '👥 Friends';
            dataSharing: '🤝 Allowed' | '🚫 Restricted';
        };
    };
    
    // 📊 Activity tracking with emoji metadata
    activity: {
        lastLogin: Date;
        sessionsToday: number;
        totalSessions: number;
        achievements: Array<{
            id: string;
            name: string;
            icon: '🏆 Trophy' | '⭐ Star' | '🎖️ Medal' | '🏅 Badge';
            earnedAt: Date;
        }>;
    };
    
    // 🎨 Custom metadata with emoji tags
    metadata: Record<string, {
        value: unknown;
        type: '📊 Metric' | '🏷️ Tag' | '🔗 Reference' | '📝 Note';
        updatedAt: Date;
    }>;
}

// 🎪 Generic utility types with advanced emoji logic
type WithEmojiStatus<T> = T & {
    status: EmojiStatus;
    statusHistory: Array<{
        status: EmojiStatus;
        timestamp: Date;
        reason?: string;
        actor: '👤 User' | '🤖 System' | '👨‍💼 Admin';
    }>;
};

type EmojiApiResponse<TData, TError = string> = {
    success: boolean;
    timestamp: Date;
    requestId: string;
    source: '🌐 Web' | '📱 Mobile' | '🖥️ Desktop' | '🤖 API';
} & (
    | {
        success: true;
        data: TData;
        message: '✅ Operation successful';
        metadata: {
            processingTime: number;
            cacheHit: boolean;
            version: string;
        };
    }
    | {
        success: false;
        error: TError;
        message: '❌ Operation failed';
        details: {
            code: number;
            category: '🚫 Authorization' | '📊 Validation' | '💥 System' | '🌐 Network';
            retryable: boolean;
        };
    }
);

// 🔥 Advanced conditional types with emoji transformations
type EmojiExtract<T, U> = T extends `${infer Emoji} ${infer Rest}`
    ? Emoji extends '🟢' | '🟡' | '🔴' | '⚫'
        ? { emoji: Emoji; text: Rest; category: U }
        : never
    : never;

type EmojiResolve<T> = {
    [K in keyof T]: T[K] extends string
        ? EmojiExtract<T[K], K>
        : T[K] extends Array<infer U>
        ? Array<EmojiResolve<U>>
        : T[K] extends object
        ? EmojiResolve<T[K]>
        : T[K];
};

// 🎨 Mapped types with emoji enrichment
type EmojiMetadata<T> = {
    readonly [K in keyof T]: {
        value: T[K];
        emoji: K extends 'success' ? '✅' : 
               K extends 'error' ? '❌' : 
               K extends 'warning' ? '⚠️' : 
               K extends 'info' ? 'ℹ️' : '❓';
        timestamp: Date;
        source: '👤 User' | '🤖 System';
        validated: boolean;
    };
};

// 🚀 Advanced class with decorators and complex emoji patterns
class EmojiAnalyticsEngine<TConfig extends Record<string, unknown>> {
    private readonly _config: TConfig;
    private readonly _metrics: Map<string, number>;
    private readonly _events: Array<EmojiAnalyticsEvent>;
    private _status: ProcessingState;
    
    constructor(config: TConfig) {
        this._config = config;
        this._metrics = new Map();
        this._events = [];
        this._status = '🟢 Ready' as ProcessingState;
        
        console.log('🚀 Analytics Engine initialized with emoji support');
    }
    
    // 🎯 Generic method with advanced type constraints
    async processAnalytics<T extends EmojiAnalyticsData>(
        data: T[],
        options: EmojiProcessingOptions<T> = {}
    ): Promise<EmojiApiResponse<EmojiAnalyticsResult<T>>> {
        try {
            this._status = '⏳ Loading';
            
            // 🔍 Input validation with emoji feedback
            if (!Array.isArray(data) || data.length === 0) {
                return this.createErrorResponse(
                    '❌ Invalid or empty data array',
                    '📊 Validation',
                    400
                );
            }
            
            this._status = '🔄 Processing';
            console.log(`🔄 Processing ${data.length} analytics items...`);
            
            // 📊 Process data with emoji progress tracking
            const results: EmojiAnalyticsProcessedItem<T>[] = [];
            const errors: Array<{ index: number; error: string; item: T }> = [];
            
            for (let i = 0; i < data.length; i++) {
                try {
                    const item = data[i];
                    const processed = await this.processItem(item, i, options);
                    results.push(processed);
                    
                    // 📈 Update progress
                    if (i % 100 === 0 || i === data.length - 1) {
                        const progress = Math.round(((i + 1) / data.length) * 100);
                        console.log(`📊 Progress: ${progress}% (${i + 1}/${data.length})`);
                    }
                    
                } catch (itemError) {
                    console.error(`💥 Item ${i} processing failed:`, itemError);
                    errors.push({
                        index: i,
                        error: itemError instanceof Error ? itemError.message : String(itemError),
                        item: data[i]
                    });
                }
            }
            
            this._status = '✅ Complete';
            
            // 🎉 Generate final results with emoji summary
            const result: EmojiAnalyticsResult<T> = {
                processed: results,
                errors: errors,
                summary: {
                    total: data.length,
                    successful: results.length,
                    failed: errors.length,
                    successRate: `${Math.round((results.length / data.length) * 100)}%`,
                    status: errors.length === 0 ? '🎉 Perfect' :
                           results.length === 0 ? '💥 Complete Failure' : '⚠️ Partial Success'
                },
                metrics: this.generateMetrics(results),
                recommendations: this.generateRecommendations(results, errors)
            };
            
            console.log(`✅ Analytics processing completed: ${result.summary.status}`);
            
            return {
                success: true,
                data: result,
                message: '✅ Operation successful',
                timestamp: new Date(),
                requestId: this.generateRequestId(),
                source: '🖥️ Desktop',
                metadata: {
                    processingTime: Date.now() - this.getStartTime(),
                    cacheHit: false,
                    version: '2.0.0'
                }
            };
            
        } catch (error) {
            this._status = '❌ Failed';
            console.error('💥 Analytics processing failed:', error);
            
            return this.createErrorResponse(
                error instanceof Error ? error.message : String(error),
                '💥 System',
                500
            );
        }
    }
    
    // 🔍 Individual item processing with emoji enrichment
    private async processItem<T extends EmojiAnalyticsData>(
        item: T,
        index: number,
        options: EmojiProcessingOptions<T>
    ): Promise<EmojiAnalyticsProcessedItem<T>> {
        const startTime = Date.now();
        
        // 🧪 Item validation with emoji checks
        const validation = this.validateItem(item);
        if (!validation.valid) {
            throw new Error(`⚠️ Validation failed: ${validation.errors.join(', ')}`);
        }
        
        // 🔄 Apply transformations with emoji tracking
        const transformed = await this.transformItem(item, options);
        
        // 📊 Calculate metrics with emoji indicators
        const metrics = this.calculateItemMetrics(transformed);
        
        // 🎯 Generate insights with emoji categorization
        const insights = this.generateItemInsights(transformed, metrics);
        
        const processingTime = Date.now() - startTime;
        
        return {
            index: index,
            original: item,
            transformed: transformed,
            metrics: metrics,
            insights: insights,
            processingTime: processingTime,
            status: processingTime < 50 ? '🟢 Fast' :
                   processingTime < 200 ? '🟡 Normal' : '🔴 Slow',
            timestamp: new Date()
        };
    }
    
    // 🧪 Item validation with comprehensive emoji checks
    private validateItem<T extends EmojiAnalyticsData>(item: T): EmojiValidationResult {
        const errors: string[] = [];
        
        if (!item || typeof item !== 'object') {
            errors.push('❌ Item must be an object');
        }
        
        if (!('id' in item) || !item.id) {
            errors.push('🆔 Missing required ID field');
        }
        
        if (!('timestamp' in item) || !item.timestamp) {
            errors.push('🕐 Missing timestamp field');
        }
        
        if ('value' in item && typeof item.value !== 'number') {
            errors.push('🔢 Value must be a number');
        }
        
        return {
            valid: errors.length === 0,
            errors: errors,
            status: errors.length === 0 ? '✅ Valid' : '❌ Invalid'
        };
    }
    
    // 🔄 Item transformation with emoji enhancement
    private async transformItem<T extends EmojiAnalyticsData>(
        item: T,
        options: EmojiProcessingOptions<T>
    ): Promise<EmojiTransformedItem<T>> {
        // 🚀 Apply transformations based on options
        let transformed: EmojiTransformedItem<T> = {
            ...item,
            processed: true,
            processedAt: new Date(),
            version: '2.0.0'
        } as EmojiTransformedItem<T>;
        
        // 📊 Apply value normalization if enabled
        if (options.normalizeValues && 'value' in item) {
            const normalized = this.normalizeValue(item.value as number);
            transformed = {
                ...transformed,
                normalizedValue: normalized,
                normalizationApplied: '✅ Applied'
            } as EmojiTransformedItem<T>;
        }
        
        // 🏷️ Apply categorization if enabled
        if (options.enableCategorization) {
            const category = this.categorizeItem(item);
            transformed = {
                ...transformed,
                category: category,
                categorizationStatus: '🏷️ Categorized'
            } as EmojiTransformedItem<T>;
        }
        
        // 🔗 Apply enrichment if enabled
        if (options.enableEnrichment) {
            const enrichment = await this.enrichItem(item);
            transformed = {
                ...transformed,
                enrichment: enrichment,
                enrichmentStatus: '✨ Enriched'
            } as EmojiTransformedItem<T>;
        }
        
        return transformed;
    }
    
    // 📊 Calculate comprehensive metrics with emoji indicators
    private calculateItemMetrics<T extends EmojiAnalyticsData>(
        item: EmojiTransformedItem<T>
    ): EmojiItemMetrics {
        const complexity = this.calculateComplexity(item);
        const quality = this.assessQuality(item);
        const completeness = this.assessCompleteness(item);
        const freshness = this.assessFreshness(item);
        
        // 🎯 Add emoji indicators based on metrics
        const overallScore = (
            complexity.score +
            quality.score +
            completeness.score +
            freshness.score
        ) / 4;
        
        const overall = {
            score: overallScore,
            grade: overallScore >= 90 ? '🏆 Excellent' :
                   overallScore >= 75 ? '⭐ Good' :
                   overallScore >= 60 ? '👍 Fair' : '⚠️ Poor',
            indicator: overallScore >= 80 ? '🟢' : 
                      overallScore >= 60 ? '🟡' : '🔴'
        };
        
        return {
            complexity,
            quality,
            completeness,
            freshness,
            overall
        };
    }
    
    // 🎯 Generate insights with emoji categorization
    private generateItemInsights<T extends EmojiAnalyticsData>(
        item: EmojiTransformedItem<T>,
        metrics: EmojiItemMetrics
    ): EmojiItemInsights {
        const insights: EmojiItemInsights = {
            patterns: [],
            anomalies: [],
            recommendations: [],
            trends: {
                direction: '➡️ Stable',
                confidence: 0.5,
                factors: []
            }
        };
        
        // 🔍 Pattern detection with emoji classification
        if (metrics.quality.score > 85) {
            insights.patterns.push({
                type: '🌟 High Quality',
                description: 'Item shows excellent quality metrics',
                confidence: 0.9
            });
        }
        
        if (metrics.complexity.score > 80) {
            insights.patterns.push({
                type: '🧩 Complex Structure',
                description: 'Item has high complexity characteristics',
                confidence: 0.8
            });
        }
        
        // ⚠️ Anomaly detection with emoji alerts
        if (metrics.freshness.score < 30) {
            insights.anomalies.push({
                type: '🕐 Stale Data',
                severity: '⚠️ Medium',
                description: 'Data appears to be outdated',
                action: 'Consider refreshing or validating data source'
            });
        }
        
        if (metrics.completeness.score < 50) {
            insights.anomalies.push({
                type: '🧩 Incomplete Data',
                severity: '🔴 High',
                description: 'Missing critical data fields',
                action: 'Review data collection processes'
            });
        }
        
        // 💡 Generate recommendations with emoji guidance
        if (metrics.overall.score < 70) {
            insights.recommendations.push({
                priority: '🔴 High',
                category: '🔧 Quality Improvement',
                action: 'Review and enhance data quality processes',
                impact: 'Will improve overall analytics reliability'
            });
        }
        
        return insights;
    }
    
    // 🎉 Generate comprehensive metrics summary
    private generateMetrics<T extends EmojiAnalyticsData>(
        results: EmojiAnalyticsProcessedItem<T>[]
    ): EmojiAnalyticsMetrics {
        const totalItems = results.length;
        if (totalItems === 0) {
            return {
                averageProcessingTime: 0,
                qualityDistribution: {},
                complexityDistribution: {},
                anomalyCount: 0,
                overallHealth: '❓ Unknown'
            };
        }
        
        // 📊 Calculate processing time metrics
        const processingTimes = results.map(r => r.processingTime);
        const avgProcessingTime = processingTimes.reduce((a, b) => a + b, 0) / totalItems;
        
        // 🎯 Calculate quality distribution
        const qualityGrades = results.map(r => r.metrics.overall.grade);
        const qualityDistribution = qualityGrades.reduce((dist, grade) => {
            dist[grade] = (dist[grade] || 0) + 1;
            return dist;
        }, {} as Record<string, number>);
        
        // 🧩 Calculate complexity distribution
        const complexityScores = results.map(r => r.metrics.complexity.score);
        const avgComplexity = complexityScores.reduce((a, b) => a + b, 0) / totalItems;
        
        // ⚠️ Count anomalies
        const anomalyCount = results.reduce((count, r) => count + r.insights.anomalies.length, 0);
        
        // 🎉 Determine overall health
        const avgQuality = results.reduce((sum, r) => sum + r.metrics.overall.score, 0) / totalItems;
        const overallHealth = avgQuality >= 85 ? '🟢 Excellent' :
                             avgQuality >= 70 ? '🟡 Good' :
                             avgQuality >= 50 ? '🟠 Fair' : '🔴 Poor';
        
        return {
            averageProcessingTime: Math.round(avgProcessingTime),
            qualityDistribution: qualityDistribution,
            complexityDistribution: {
                average: Math.round(avgComplexity),
                range: `${Math.min(...complexityScores)} - ${Math.max(...complexityScores)}`
            },
            anomalyCount: anomalyCount,
            overallHealth: overallHealth
        };
    }
    
    // 💡 Generate actionable recommendations
    private generateRecommendations<T extends EmojiAnalyticsData>(
        results: EmojiAnalyticsProcessedItem<T>[],
        errors: Array<{ index: number; error: string; item: T }>
    ): EmojiRecommendation[] {
        const recommendations: EmojiRecommendation[] = [];
        
        // 🔧 Performance recommendations
        const slowItems = results.filter(r => r.status === '🔴 Slow').length;
        if (slowItems > results.length * 0.2) {
            recommendations.push({
                category: '⚡ Performance',
                priority: '🟡 Medium',
                title: 'Optimize processing performance',
                description: `${slowItems} items processed slowly. Consider optimization.`,
                action: 'Review processing algorithms and data complexity'
            });
        }
        
        // 📊 Quality recommendations
        const lowQualityItems = results.filter(r => 
            r.metrics.overall.score < 60
        ).length;
        
        if (lowQualityItems > 0) {
            recommendations.push({
                category: '🎯 Quality',
                priority: lowQualityItems > results.length * 0.3 ? '🔴 High' : '🟡 Medium',
                title: 'Improve data quality',
                description: `${lowQualityItems} items have quality issues`,
                action: 'Review data sources and validation processes'
            });
        }
        
        // ⚠️ Error handling recommendations
        if (errors.length > 0) {
            recommendations.push({
                category: '🚨 Error Handling',
                priority: '🔴 High',
                title: 'Address processing errors',
                description: `${errors.length} items failed to process`,
                action: 'Review error patterns and improve error handling'
            });
        }
        
        return recommendations;
    }
    
    // 🔧 Helper methods for calculations
    private calculateComplexity<T>(item: T): { score: number; level: string } {
        const score = Math.floor(Math.random() * 100);
        return {
            score: score,
            level: score >= 80 ? '🔥 Very High' :
                   score >= 60 ? '📈 High' :
                   score >= 40 ? '📊 Medium' : '📋 Low'
        };
    }
    
    private assessQuality<T>(item: T): { score: number; issues: string[] } {
        const score = Math.floor(Math.random() * 100);
        const issues: string[] = [];
        
        if (score < 50) issues.push('⚠️ Low completeness');
        if (score < 30) issues.push('❌ Data integrity issues');
        
        return { score, issues };
    }
    
    private assessCompleteness<T>(item: T): { score: number; missing: string[] } {
        const score = Math.floor(Math.random() * 100);
        return {
            score: score,
            missing: score < 50 ? ['🔍 Missing metadata', '📊 Incomplete metrics'] : []
        };
    }
    
    private assessFreshness<T>(item: T): { score: number; age: string } {
        const score = Math.floor(Math.random() * 100);
        return {
            score: score,
            age: score >= 80 ? '🆕 Fresh' :
                 score >= 50 ? '🕐 Recent' : '⏰ Stale'
        };
    }
    
    private normalizeValue(value: number): number {
        return Math.max(0, Math.min(100, value));
    }
    
    private categorizeItem<T>(item: T): string {
        const categories = ['📊 Analytics', '👤 User Data', '🎯 Events', '🔧 System'];
        return categories[Math.floor(Math.random() * categories.length)];
    }
    
    private async enrichItem<T>(item: T): Promise<Record<string, unknown>> {
        await new Promise(resolve => setTimeout(resolve, 10));
        return {
            enriched: '✨ Enhanced',
            confidence: Math.random(),
            sources: ['🌐 External API', '📊 Internal DB']
        };
    }
    
    private createErrorResponse<T>(
        message: string,
        category: '🚫 Authorization' | '📊 Validation' | '💥 System' | '🌐 Network',
        code: number
    ): EmojiApiResponse<T> {
        return {
            success: false,
            error: message,
            message: '❌ Operation failed',
            timestamp: new Date(),
            requestId: this.generateRequestId(),
            source: '🖥️ Desktop',
            details: {
                code: code,
                category: category,
                retryable: code >= 500
            }
        };
    }
    
    private generateRequestId(): string {
        return `req_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
    }
    
    private getStartTime(): number {
        return Date.now() - 1000; // Simulate start time
    }
}

// 🎯 Supporting interfaces and types
interface EmojiAnalyticsData {
    id: string;
    timestamp: Date;
    value?: number;
    [key: string]: unknown;
}

interface EmojiProcessingOptions<T> {
    normalizeValues?: boolean;
    enableCategorization?: boolean;
    enableEnrichment?: boolean;
    batchSize?: number;
    timeout?: number;
}

interface EmojiAnalyticsResult<T> {
    processed: EmojiAnalyticsProcessedItem<T>[];
    errors: Array<{ index: number; error: string; item: T }>;
    summary: {
        total: number;
        successful: number;
        failed: number;
        successRate: string;
        status: string;
    };
    metrics: EmojiAnalyticsMetrics;
    recommendations: EmojiRecommendation[];
}

interface EmojiAnalyticsProcessedItem<T> {
    index: number;
    original: T;
    transformed: EmojiTransformedItem<T>;
    metrics: EmojiItemMetrics;
    insights: EmojiItemInsights;
    processingTime: number;
    status: string;
    timestamp: Date;
}

type EmojiTransformedItem<T> = T & {
    processed: boolean;
    processedAt: Date;
    version: string;
    normalizedValue?: number;
    normalizationApplied?: string;
    category?: string;
    categorizationStatus?: string;
    enrichment?: Record<string, unknown>;
    enrichmentStatus?: string;
};

interface EmojiItemMetrics {
    complexity: { score: number; level: string };
    quality: { score: number; issues: string[] };
    completeness: { score: number; missing: string[] };
    freshness: { score: number; age: string };
    overall: { score: number; grade: string; indicator: string };
}

interface EmojiItemInsights {
    patterns: Array<{
        type: string;
        description: string;
        confidence: number;
    }>;
    anomalies: Array<{
        type: string;
        severity: string;
        description: string;
        action: string;
    }>;
    recommendations: Array<{
        priority: string;
        category: string;
        action: string;
        impact: string;
    }>;
    trends: {
        direction: string;
        confidence: number;
        factors: string[];
    };
}

interface EmojiAnalyticsMetrics {
    averageProcessingTime: number;
    qualityDistribution: Record<string, number>;
    complexityDistribution: Record<string, unknown>;
    anomalyCount: number;
    overallHealth: string;
}

interface EmojiRecommendation {
    category: string;
    priority: string;
    title: string;
    description: string;
    action: string;
}

interface EmojiValidationResult {
    valid: boolean;
    errors: string[];
    status: string;
}

interface EmojiAnalyticsEvent {
    id: string;
    type: string;
    timestamp: Date;
    data: Record<string, unknown>;
    source: string;
}

// 🎉 Export types and classes for comprehensive testing
export {
    type EmojiUser,
    type EmojiStatus,
    type NotificationLevel,
    type ProcessingState,
    type WithEmojiStatus,
    type EmojiApiResponse,
    type EmojiExtract,
    type EmojiResolve,
    type EmojiMetadata,
    EmojiAnalyticsEngine,
    type EmojiAnalyticsData,
    type EmojiProcessingOptions,
    type EmojiAnalyticsResult
};

/* 🎊 End of Advanced TypeScript Test File
   📝 This file contains comprehensive TypeScript patterns with extensive emoji usage
   🧪 Features: Advanced types, generics, interfaces, classes, conditional types
   🎯 Perfect for testing emoji removal capabilities across all TypeScript constructs
   📊 Total emoji count: 300+ emojis in various contexts and type definitions
   ✅ All syntax is valid TypeScript without compilation errors
*/