knowfoolery/backend/services/user-service/internal/domain/valueobjects/user_statistics.go

package valueobjects

import (
	"fmt"
	"time"

	"knowfoolery/backend/shared/types"
)

// UserStatistics tracks comprehensive user statistics
type UserStatistics struct {
	// Game statistics
	totalGamesPlayed     int64
	totalGamesCompleted  int64
	totalGamesAbandoned  int64
	totalGamesTimedOut   int64
	
	// Question statistics
	totalQuestionsAttempted int64
	totalQuestionsCorrect   int64
	totalQuestionsIncorrect int64
	totalQuestionsTimeout   int64
	
	// Score statistics
	totalScore              int64
	highestScore            int
	averageScore            float64
	bestStreak              int // Best consecutive correct answers
	currentStreak           int // Current consecutive correct answers
	
	// Time statistics
	totalPlayTime           types.Duration
	averageSessionTime      types.Duration
	fastestCorrectAnswer    types.Duration
	slowestCorrectAnswer    types.Duration
	
	// Hint statistics
	totalHintsUsed          int64
	hintsUsedPercentage     float64
	
	// Theme performance
	themePerformance        map[types.ThemeID]*ThemePerformance
	
	// Difficulty performance
	difficultyPerformance   map[types.DifficultyLevel]*DifficultyPerformance
	
	// Achievement tracking
	achievements            []string
	
	// Activity tracking
	loginCount              int64
	lastLoginAt             *types.Timestamp
	longestLoginStreak      int
	currentLoginStreak      int
	
	// Recent activity (last 30 days)
	recentGamesPlayed       int64
	recentCorrectRate       float64
	recentAverageScore      float64
	
	// Ranking information
	globalRank              *int
	weeklyRank              *int
	monthlyRank             *int
	
	// Improvement tracking
	improvementRate         float64 // Rate of improvement over time
	skillLevel              string  // "beginner", "intermediate", "advanced", "expert"
	
	// Update tracking
	lastCalculated          types.Timestamp
	updatedAt               types.Timestamp
}

// ThemePerformance tracks performance in a specific theme
type ThemePerformance struct {
	ThemeID           types.ThemeID `json:"theme_id"`
	QuestionsAttempted int64        `json:"questions_attempted"`
	QuestionsCorrect   int64        `json:"questions_correct"`
	CorrectRate        float64      `json:"correct_rate"`
	AverageScore       float64      `json:"average_score"`
	BestScore          int          `json:"best_score"`
	LastPlayed         *types.Timestamp `json:"last_played,omitempty"`
}

// DifficultyPerformance tracks performance at a specific difficulty level
type DifficultyPerformance struct {
	Difficulty         types.DifficultyLevel `json:"difficulty"`
	QuestionsAttempted int64                 `json:"questions_attempted"`
	QuestionsCorrect   int64                 `json:"questions_correct"`
	CorrectRate        float64               `json:"correct_rate"`
	AverageScore       float64               `json:"average_score"`
	BestScore          int                   `json:"best_score"`
	LastPlayed         *types.Timestamp      `json:"last_played,omitempty"`
}

// NewUserStatistics creates new user statistics
func NewUserStatistics() *UserStatistics {
	now := types.NewTimestamp()
	
	return &UserStatistics{
		totalGamesPlayed:        0,
		totalGamesCompleted:     0,
		totalGamesAbandoned:     0,
		totalGamesTimedOut:      0,
		totalQuestionsAttempted: 0,
		totalQuestionsCorrect:   0,
		totalQuestionsIncorrect: 0,
		totalQuestionsTimeout:   0,
		totalScore:              0,
		highestScore:            0,
		averageScore:            0.0,
		bestStreak:              0,
		currentStreak:           0,
		totalPlayTime:           types.NewDuration(0),
		averageSessionTime:      types.NewDuration(0),
		fastestCorrectAnswer:    types.NewDuration(0),
		slowestCorrectAnswer:    types.NewDuration(0),
		totalHintsUsed:          0,
		hintsUsedPercentage:     0.0,
		themePerformance:        make(map[types.ThemeID]*ThemePerformance),
		difficultyPerformance:   make(map[types.DifficultyLevel]*DifficultyPerformance),
		achievements:            []string{},
		loginCount:              0,
		lastLoginAt:             nil,
		longestLoginStreak:      0,
		currentLoginStreak:      0,
		recentGamesPlayed:       0,
		recentCorrectRate:       0.0,
		recentAverageScore:      0.0,
		globalRank:              nil,
		weeklyRank:              nil,
		monthlyRank:             nil,
		improvementRate:         0.0,
		skillLevel:              "beginner",
		lastCalculated:          now,
		updatedAt:              now,
	}
}

// Getters

// TotalGamesPlayed returns total games played
func (s *UserStatistics) TotalGamesPlayed() int64 {
	return s.totalGamesPlayed
}

// TotalGamesCompleted returns total games completed
func (s *UserStatistics) TotalGamesCompleted() int64 {
	return s.totalGamesCompleted
}

// TotalQuestionsAttempted returns total questions attempted
func (s *UserStatistics) TotalQuestionsAttempted() int64 {
	return s.totalQuestionsAttempted
}

// TotalQuestionsCorrect returns total questions answered correctly
func (s *UserStatistics) TotalQuestionsCorrect() int64 {
	return s.totalQuestionsCorrect
}

// TotalScore returns total score accumulated
func (s *UserStatistics) TotalScore() int64 {
	return s.totalScore
}

// HighestScore returns the highest score achieved
func (s *UserStatistics) HighestScore() int {
	return s.highestScore
}

// AverageScore returns the average score
func (s *UserStatistics) AverageScore() float64 {
	return s.averageScore
}

// CorrectRate returns the overall correct answer rate
func (s *UserStatistics) CorrectRate() float64 {
	if s.totalQuestionsAttempted == 0 {
		return 0.0
	}
	return float64(s.totalQuestionsCorrect) / float64(s.totalQuestionsAttempted)
}

// BestStreak returns the best consecutive correct answers
func (s *UserStatistics) BestStreak() int {
	return s.bestStreak
}

// CurrentStreak returns current consecutive correct answers
func (s *UserStatistics) CurrentStreak() int {
	return s.currentStreak
}

// TotalPlayTime returns total time spent playing
func (s *UserStatistics) TotalPlayTime() types.Duration {
	return s.totalPlayTime
}

// HintsUsedPercentage returns percentage of questions where hints were used
func (s *UserStatistics) HintsUsedPercentage() float64 {
	return s.hintsUsedPercentage
}

// ThemePerformance returns performance for a specific theme
func (s *UserStatistics) ThemePerformance(themeID types.ThemeID) *ThemePerformance {
	performance, exists := s.themePerformance[themeID]
	if !exists {
		return nil
	}
	// Return copy
	return &ThemePerformance{
		ThemeID:            performance.ThemeID,
		QuestionsAttempted: performance.QuestionsAttempted,
		QuestionsCorrect:   performance.QuestionsCorrect,
		CorrectRate:        performance.CorrectRate,
		AverageScore:       performance.AverageScore,
		BestScore:          performance.BestScore,
		LastPlayed:         performance.LastPlayed,
	}
}

// DifficultyPerformance returns performance for a specific difficulty
func (s *UserStatistics) DifficultyPerformance(difficulty types.DifficultyLevel) *DifficultyPerformance {
	performance, exists := s.difficultyPerformance[difficulty]
	if !exists {
		return nil
	}
	// Return copy
	return &DifficultyPerformance{
		Difficulty:         performance.Difficulty,
		QuestionsAttempted: performance.QuestionsAttempted,
		QuestionsCorrect:   performance.QuestionsCorrect,
		CorrectRate:        performance.CorrectRate,
		AverageScore:       performance.AverageScore,
		BestScore:          performance.BestScore,
		LastPlayed:         performance.LastPlayed,
	}
}

// Achievements returns list of achievements
func (s *UserStatistics) Achievements() []string {
	return append([]string(nil), s.achievements...) // Return copy
}

// LoginCount returns total login count
func (s *UserStatistics) LoginCount() int64 {
	return s.loginCount
}

// SkillLevel returns current skill level
func (s *UserStatistics) SkillLevel() string {
	return s.skillLevel
}

// GlobalRank returns global ranking if available
func (s *UserStatistics) GlobalRank() *int {
	return s.globalRank
}

// UpdatedAt returns last update timestamp
func (s *UserStatistics) UpdatedAt() types.Timestamp {
	return s.updatedAt
}

// Business methods

// RecordGameStart records the start of a new game
func (s *UserStatistics) RecordGameStart() {
	s.totalGamesPlayed++
	s.markUpdated()
}

// RecordGameCompleted records a completed game
func (s *UserStatistics) RecordGameCompleted(score int, questionsCorrect int, questionsTotal int, playTime types.Duration) {
	s.totalGamesCompleted++
	s.totalScore += int64(score)
	
	if score > s.highestScore {
		s.highestScore = score
	}
	
	s.totalQuestionsAttempted += int64(questionsTotal)
	s.totalQuestionsCorrect += int64(questionsCorrect)
	s.totalQuestionsIncorrect += int64(questionsTotal - questionsCorrect)
	
	s.totalPlayTime = types.NewDuration(s.totalPlayTime.Duration + playTime.Duration)
	
	s.recalculate()
}

// RecordGameAbandoned records an abandoned game
func (s *UserStatistics) RecordGameAbandoned() {
	s.totalGamesAbandoned++
	s.currentStreak = 0 // Reset current streak on abandonment
	s.markUpdated()
}

// RecordGameTimedOut records a timed out game
func (s *UserStatistics) RecordGameTimedOut() {
	s.totalGamesTimedOut++
	s.currentStreak = 0 // Reset current streak on timeout
	s.markUpdated()
}

// RecordCorrectAnswer records a correct answer
func (s *UserStatistics) RecordCorrectAnswer(hintUsed bool, timeTaken types.Duration) {
	s.totalQuestionsAttempted++
	s.totalQuestionsCorrect++
	s.currentStreak++
	
	if s.currentStreak > s.bestStreak {
		s.bestStreak = s.currentStreak
	}
	
	if hintUsed {
		s.totalHintsUsed++
	}
	
	// Update answer time records
	if s.fastestCorrectAnswer.Duration == 0 || timeTaken.Duration < s.fastestCorrectAnswer.Duration {
		s.fastestCorrectAnswer = timeTaken
	}
	if timeTaken.Duration > s.slowestCorrectAnswer.Duration {
		s.slowestCorrectAnswer = timeTaken
	}
	
	s.recalculate()
}

// RecordIncorrectAnswer records an incorrect answer
func (s *UserStatistics) RecordIncorrectAnswer(hintUsed bool) {
	s.totalQuestionsAttempted++
	s.totalQuestionsIncorrect++
	s.currentStreak = 0 // Reset streak on incorrect answer
	
	if hintUsed {
		s.totalHintsUsed++
	}
	
	s.recalculate()
}

// RecordTimeoutAnswer records a timeout
func (s *UserStatistics) RecordTimeoutAnswer() {
	s.totalQuestionsAttempted++
	s.totalQuestionsTimeout++
	s.currentStreak = 0 // Reset streak on timeout
	
	s.recalculate()
}

// UpdateThemePerformance updates performance for a specific theme
func (s *UserStatistics) UpdateThemePerformance(
	themeID types.ThemeID,
	questionsAttempted int64,
	questionsCorrect int64,
	score int,
) {
	performance := s.themePerformance[themeID]
	if performance == nil {
		performance = &ThemePerformance{
			ThemeID:            themeID,
			QuestionsAttempted: 0,
			QuestionsCorrect:   0,
			CorrectRate:        0.0,
			AverageScore:       0.0,
			BestScore:          0,
			LastPlayed:         nil,
		}
		s.themePerformance[themeID] = performance
	}
	
	performance.QuestionsAttempted += questionsAttempted
	performance.QuestionsCorrect += questionsCorrect
	
	if performance.QuestionsAttempted > 0 {
		performance.CorrectRate = float64(performance.QuestionsCorrect) / float64(performance.QuestionsAttempted)
	}
	
	if score > performance.BestScore {
		performance.BestScore = score
	}
	
	// Update average score (simplified calculation)
	if performance.QuestionsAttempted > 0 {
		totalScore := performance.AverageScore * float64(performance.QuestionsAttempted-questionsAttempted)
		totalScore += float64(score)
		performance.AverageScore = totalScore / float64(performance.QuestionsAttempted)
	}
	
	now := types.NewTimestamp()
	performance.LastPlayed = &now
	
	s.markUpdated()
}

// UpdateDifficultyPerformance updates performance for a specific difficulty
func (s *UserStatistics) UpdateDifficultyPerformance(
	difficulty types.DifficultyLevel,
	questionsAttempted int64,
	questionsCorrect int64,
	score int,
) {
	performance := s.difficultyPerformance[difficulty]
	if performance == nil {
		performance = &DifficultyPerformance{
			Difficulty:         difficulty,
			QuestionsAttempted: 0,
			QuestionsCorrect:   0,
			CorrectRate:        0.0,
			AverageScore:       0.0,
			BestScore:          0,
			LastPlayed:         nil,
		}
		s.difficultyPerformance[difficulty] = performance
	}
	
	performance.QuestionsAttempted += questionsAttempted
	performance.QuestionsCorrect += questionsCorrect
	
	if performance.QuestionsAttempted > 0 {
		performance.CorrectRate = float64(performance.QuestionsCorrect) / float64(performance.QuestionsAttempted)
	}
	
	if score > performance.BestScore {
		performance.BestScore = score
	}
	
	// Update average score
	if performance.QuestionsAttempted > 0 {
		totalScore := performance.AverageScore * float64(performance.QuestionsAttempted-questionsAttempted)
		totalScore += float64(score)
		performance.AverageScore = totalScore / float64(performance.QuestionsAttempted)
	}
	
	now := types.NewTimestamp()
	performance.LastPlayed = &now
	
	s.markUpdated()
}

// AddAchievement adds an achievement
func (s *UserStatistics) AddAchievement(achievement string) {
	// Check if achievement already exists
	for _, existing := range s.achievements {
		if existing == achievement {
			return
		}
	}
	
	s.achievements = append(s.achievements, achievement)
	s.markUpdated()
}

// RecordLogin records a login event
func (s *UserStatistics) RecordLogin() {
	s.loginCount++
	now := types.NewTimestamp()
	
	if s.lastLoginAt != nil {
		// Calculate if this extends the login streak
		daysSinceLastLogin := int(now.Sub(*s.lastLoginAt).Hours() / 24)
		
		if daysSinceLastLogin == 1 {
			// Consecutive day login
			s.currentLoginStreak++
		} else if daysSinceLastLogin > 1 {
			// Streak broken
			s.currentLoginStreak = 1
		}
		// Same day login doesn't change streak
	} else {
		// First login
		s.currentLoginStreak = 1
	}
	
	if s.currentLoginStreak > s.longestLoginStreak {
		s.longestLoginStreak = s.currentLoginStreak
	}
	
	s.lastLoginAt = &now
	s.markUpdated()
}

// UpdateRankings updates ranking information
func (s *UserStatistics) UpdateRankings(globalRank, weeklyRank, monthlyRank *int) {
	s.globalRank = globalRank
	s.weeklyRank = weeklyRank
	s.monthlyRank = monthlyRank
	s.markUpdated()
}

// UpdateRecentStatistics updates recent performance statistics
func (s *UserStatistics) UpdateRecentStatistics(
	recentGamesPlayed int64,
	recentCorrectRate float64,
	recentAverageScore float64,
) {
	s.recentGamesPlayed = recentGamesPlayed
	s.recentCorrectRate = recentCorrectRate
	s.recentAverageScore = recentAverageScore
	s.markUpdated()
}

// Analysis methods

// GetPerformanceCategory returns performance category based on statistics
func (s *UserStatistics) GetPerformanceCategory() string {
	correctRate := s.CorrectRate()
	
	switch {
	case correctRate >= 0.9:
		return "excellent"
	case correctRate >= 0.8:
		return "very_good"
	case correctRate >= 0.7:
		return "good"
	case correctRate >= 0.6:
		return "average"
	case correctRate >= 0.5:
		return "below_average"
	default:
		return "needs_improvement"
	}
}

// GetActivityLevel returns activity level based on recent games
func (s *UserStatistics) GetActivityLevel() string {
	switch {
	case s.recentGamesPlayed >= 50:
		return "very_active"
	case s.recentGamesPlayed >= 20:
		return "active"
	case s.recentGamesPlayed >= 5:
		return "moderate"
	case s.recentGamesPlayed >= 1:
		return "low"
	default:
		return "inactive"
	}
}

// IsImproving returns true if the user is showing improvement
func (s *UserStatistics) IsImproving() bool {
	return s.improvementRate > 0.0
}

// GetBestTheme returns the theme with the highest performance
func (s *UserStatistics) GetBestTheme() *types.ThemeID {
	var bestTheme *types.ThemeID
	var bestRate float64
	
	for themeID, performance := range s.themePerformance {
		if performance.QuestionsAttempted >= 5 && performance.CorrectRate > bestRate {
			bestRate = performance.CorrectRate
			themeIDCopy := themeID
			bestTheme = &themeIDCopy
		}
	}
	
	return bestTheme
}

// GetOptimalDifficulty returns the difficulty level that's most suitable
func (s *UserStatistics) GetOptimalDifficulty() types.DifficultyLevel {
	correctRate := s.CorrectRate()
	
	switch {
	case correctRate >= 0.9:
		return types.DifficultyHard
	case correctRate >= 0.8:
		return types.DifficultyMedium
	case correctRate >= 0.6:
		return types.DifficultyEasy
	default:
		return types.DifficultyEasy
	}
}

// Validation

// Validate performs validation on the statistics
func (s *UserStatistics) Validate() *types.ValidationResult {
	result := types.NewValidationResult()
	
	// Check consistency
	if s.totalGamesPlayed < s.totalGamesCompleted+s.totalGamesAbandoned+s.totalGamesTimedOut {
		result.AddError("total games played is inconsistent with game outcomes")
	}
	
	if s.totalQuestionsAttempted != s.totalQuestionsCorrect+s.totalQuestionsIncorrect+s.totalQuestionsTimeout {
		result.AddError("total questions attempted is inconsistent with question outcomes")
	}
	
	// Check bounds
	if s.CorrectRate() < 0.0 || s.CorrectRate() > 1.0 {
		result.AddError("correct rate must be between 0.0 and 1.0")
	}
	
	if s.hintsUsedPercentage < 0.0 || s.hintsUsedPercentage > 1.0 {
		result.AddError("hints used percentage must be between 0.0 and 1.0")
	}
	
	// Check negative values
	if s.totalGamesPlayed < 0 || s.totalScore < 0 || s.loginCount < 0 {
		result.AddError("statistics cannot have negative values")
	}
	
	return result
}

// Helper methods

// recalculate recalculates derived statistics
func (s *UserStatistics) recalculate() {
	// Recalculate average score
	if s.totalGamesCompleted > 0 {
		s.averageScore = float64(s.totalScore) / float64(s.totalGamesCompleted)
	}
	
	// Recalculate hints used percentage
	if s.totalQuestionsAttempted > 0 {
		s.hintsUsedPercentage = float64(s.totalHintsUsed) / float64(s.totalQuestionsAttempted)
	}
	
	// Recalculate average session time
	if s.totalGamesCompleted > 0 {
		s.averageSessionTime = types.NewDuration(s.totalPlayTime.Duration / time.Duration(s.totalGamesCompleted))
	}
	
	// Update skill level based on performance
	s.updateSkillLevel()
	
	s.lastCalculated = types.NewTimestamp()
	s.markUpdated()
}

// updateSkillLevel updates the skill level based on current statistics
func (s *UserStatistics) updateSkillLevel() {
	correctRate := s.CorrectRate()
	gamesPlayed := s.totalGamesPlayed
	
	switch {
	case gamesPlayed >= 100 && correctRate >= 0.85:
		s.skillLevel = "expert"
	case gamesPlayed >= 50 && correctRate >= 0.75:
		s.skillLevel = "advanced"
	case gamesPlayed >= 20 && correctRate >= 0.60:
		s.skillLevel = "intermediate"
	default:
		s.skillLevel = "beginner"
	}
}

// markUpdated updates the timestamp
func (s *UserStatistics) markUpdated() {
	s.updatedAt = types.NewTimestamp()
}

// ToSnapshot creates a read-only snapshot
func (s *UserStatistics) ToSnapshot() *UserStatisticsSnapshot {
	// Copy theme performance
	themePerformanceCopy := make(map[types.ThemeID]*ThemePerformance)
	for k, v := range s.themePerformance {
		themePerformanceCopy[k] = &ThemePerformance{
			ThemeID:            v.ThemeID,
			QuestionsAttempted: v.QuestionsAttempted,
			QuestionsCorrect:   v.QuestionsCorrect,
			CorrectRate:        v.CorrectRate,
			AverageScore:       v.AverageScore,
			BestScore:          v.BestScore,
			LastPlayed:         v.LastPlayed,
		}
	}
	
	// Copy difficulty performance
	difficultyPerformanceCopy := make(map[types.DifficultyLevel]*DifficultyPerformance)
	for k, v := range s.difficultyPerformance {
		difficultyPerformanceCopy[k] = &DifficultyPerformance{
			Difficulty:         v.Difficulty,
			QuestionsAttempted: v.QuestionsAttempted,
			QuestionsCorrect:   v.QuestionsCorrect,
			CorrectRate:        v.CorrectRate,
			AverageScore:       v.AverageScore,
			BestScore:          v.BestScore,
			LastPlayed:         v.LastPlayed,
		}
	}
	
	return &UserStatisticsSnapshot{
		TotalGamesPlayed:        s.totalGamesPlayed,
		TotalGamesCompleted:     s.totalGamesCompleted,
		TotalQuestionsAttempted: s.totalQuestionsAttempted,
		TotalQuestionsCorrect:   s.totalQuestionsCorrect,
		TotalScore:              s.totalScore,
		HighestScore:            s.highestScore,
		AverageScore:            s.averageScore,
		CorrectRate:             s.CorrectRate(),
		BestStreak:              s.bestStreak,
		CurrentStreak:           s.currentStreak,
		TotalPlayTime:           s.totalPlayTime,
		HintsUsedPercentage:     s.hintsUsedPercentage,
		ThemePerformance:        themePerformanceCopy,
		DifficultyPerformance:   difficultyPerformanceCopy,
		Achievements:            append([]string(nil), s.achievements...),
		LoginCount:              s.loginCount,
		SkillLevel:              s.skillLevel,
		GlobalRank:              s.globalRank,
		WeeklyRank:              s.weeklyRank,
		MonthlyRank:             s.monthlyRank,
		UpdatedAt:               s.updatedAt,
	}
}

// GetSummary returns a human-readable summary
func (s *UserStatistics) GetSummary() string {
	return fmt.Sprintf("Games: %d played (%d completed) | Questions: %d/%d correct (%.1f%%) | Score: %d (avg: %.1f)",
		s.totalGamesPlayed,
		s.totalGamesCompleted,
		s.totalQuestionsCorrect,
		s.totalQuestionsAttempted,
		s.CorrectRate()*100,
		s.totalScore,
		s.averageScore,
	)
}

// UserStatisticsSnapshot represents a read-only view of user statistics
type UserStatisticsSnapshot struct {
	TotalGamesPlayed        int64                                          `json:"total_games_played"`
	TotalGamesCompleted     int64                                          `json:"total_games_completed"`
	TotalQuestionsAttempted int64                                          `json:"total_questions_attempted"`
	TotalQuestionsCorrect   int64                                          `json:"total_questions_correct"`
	TotalScore              int64                                          `json:"total_score"`
	HighestScore            int                                            `json:"highest_score"`
	AverageScore            float64                                        `json:"average_score"`
	CorrectRate             float64                                        `json:"correct_rate"`
	BestStreak              int                                            `json:"best_streak"`
	CurrentStreak           int                                            `json:"current_streak"`
	TotalPlayTime           types.Duration                                 `json:"total_play_time"`
	HintsUsedPercentage     float64                                        `json:"hints_used_percentage"`
	ThemePerformance        map[types.ThemeID]*ThemePerformance            `json:"theme_performance"`
	DifficultyPerformance   map[types.DifficultyLevel]*DifficultyPerformance `json:"difficulty_performance"`
	Achievements            []string                                       `json:"achievements"`
	LoginCount              int64                                          `json:"login_count"`
	SkillLevel              string                                         `json:"skill_level"`
	GlobalRank              *int                                           `json:"global_rank,omitempty"`
	WeeklyRank              *int                                           `json:"weekly_rank,omitempty"`
	MonthlyRank             *int                                           `json:"monthly_rank,omitempty"`
	UpdatedAt               types.Timestamp                                `json:"updated_at"`
}

// GetSummary returns a summary of the snapshot
func (uss *UserStatisticsSnapshot) GetSummary() string {
	return fmt.Sprintf("Games: %d (%d completed) | Correct: %.1f%% | Skill: %s",
		uss.TotalGamesPlayed,
		uss.TotalGamesCompleted,
		uss.CorrectRate*100,
		uss.SkillLevel,
	)
}