CoinJoin & Mixing Fundamentals

// CoinJoin Analysis and Planning Tool
class CoinJoinAnalyzer {
    constructor() {
        this.recommendedRounds = {
            lowPrioirty: 2,    // Basic privacy for small amounts
            mediumPriority: 5, // Good privacy for moderate amounts
            highPriority: 10   // Strong privacy for large amounts
        };
        this.mixingStrategies = {
            wasabi: {
                name: "Wasabi Wallet",
                minAmount: 0.01, // BTC
                maxParticipants: 100,
                avgFee: 0.0001,
                userFriendly: "High",
                anonymitySet: "Medium-High"
            },
            samourai: {
                name: "Samourai Whirlpool",
                minAmount: 0.01,
                maxParticipants: 5,
                avgFee: 0.00005,
                userFriendly: "High",
                anonymitySet: "Medium"
            },
            joinmarket: {
                name: "JoinMarket",
                minAmount: 0.01,
                maxParticipants: 20,
                avgFee: 0.0002,
                userFriendly: "Low",
                anonymitySet: "High"
            }
        };
    }
    
    analyzeMixingNeeds(amount, privacyLevel = "medium") {
        const analysis = {
            amount: amount,
            privacyLevel: privacyLevel,
            recommendedRounds: this.getRecommendedRounds(privacyLevel),
            estimatedCost: this.calculateMixingCost(amount, privacyLevel),
            timeEstimate: this.estimateMixingTime(privacyLevel),
            recommendedTools: this.getRecommendedTools(amount, privacyLevel)
        };
        
        return analysis;
    }
    
    getRecommendedRounds(privacyLevel) {
        return this.recommendedRounds[privacyLevel] || this.recommendedRounds.mediumPriority;
    }
    
    calculateMixingCost(amount, privacyLevel) {
        const rounds = this.getRecommendedRounds(privacyLevel);
        const avgFeePerRound = 0.0001; // BTC
        
        return {
            totalFees: rounds * avgFeePerRound,
            feePercentage: (rounds * avgFeePerRound / amount) * 100,
            costInUSD: (rounds * avgFeePerRound) * 45000 // Assuming $45k BTC price
        };
    }
    
    estimateMixingTime(privacyLevel) {
        const rounds = this.getRecommendedRounds(privacyLevel);
        const avgTimePerRound = 2; // hours average
        
        return {
            hours: rounds * avgTimePerRound,
            days: Math.ceil((rounds * avgTimePerRound) / 24),
            note: "Actual time may vary based on network activity and tool availability"
        };
    }
    
    getRecommendedTools(amount, privacyLevel) {
        const recommendations = [];
        
        // Wasabi recommendations
        if (amount >= 0.01) {
            recommendations.push({
                tool: "Wasabi Wallet",
                reason: "User-friendly GUI with good anonymity set",
                bestFor: "Beginners and intermediate users",
                setupComplexity: "Low"
            });
        }
        
        // Samourai for mobile
        if (amount >= 0.01 && privacyLevel === "low" || privacyLevel === "medium") {
            recommendations.push({
                tool: "Samourai Wallet",
                reason: "Mobile-friendly with Whirlpool mixing",
                bestFor: "Mobile users and frequent mixers",
                setupComplexity: "Low"
            });
        }
        
        // JoinMarket for advanced users
        if (amount >= 0.05 && privacyLevel === "high") {
            recommendations.push({
                tool: "JoinMarket",
                reason: "Highest anonymity set and lowest fees",
                bestFor: "Advanced users comfortable with command line",
                setupComplexity: "High"
            });
        }
        
        return recommendations;
    }
    
    generateMixingPlan(amount, privacyLevel, mixFrequency = "monthly") {
        const analysis = this.analyzeMixingNeeds(amount, privacyLevel);
        
        return {
            plan: {
                totalAmount: amount,
                mixingStrategy: this.getMixingStrategy(amount, privacyLevel),
                frequency: mixFrequency,
                estimatedCost: analysis.estimatedCost,
                timeFrame: analysis.timeEstimate
            },
            steps: [
                "1. Choose recommended mixing tool based on your needs",
                "2. Install and configure the wallet/mixing service",
                "3. Send coins to mixing wallet (consider timing)",
                "4. Initiate mixing rounds according to plan",
                "5. Monitor progress and wait for completion",
                "6. Move mixed coins to clean addresses",
                "7. Schedule next mixing session if needed"
            ],
            warnings: [
                "Never mix coins from the same source in the same session",
                "Don't immediately consolidate mixed coins",
                "Avoid mixing on predictable schedules",
                "Consider using different mixing tools for different amounts"
            ]
        };
    }
    
    getMixingStrategy(amount, privacyLevel) {
        if (amount < 0.01) return "Amount too small - consider accumulating first";
        if (amount < 0.1 && privacyLevel === "high") return "Mix in smaller batches to avoid detection";
        if (amount >= 1.0) return "Consider mixing in multiple sessions to avoid large transactions";
        return "Standard mixing protocol recommended";
    }
}

// Usage example
const analyzer = new CoinJoinAnalyzer();
const mixingPlan = analyzer.generateMixingPlan(0.5, "medium", "monthly");
console.log("CoinJoin Mixing Plan:", mixingPlan);