stats

type Activity struct {
	ActiveDays    int
	TotalDays     int
	CurrentStreak int
	LongestStreak int
	DailySessions []DailyCount
	DailyMessages []DailyCount
	DailyTokens   []DailyCount
	Heatmap       [7][24]int
}

type DailyCount struct {
	Date  time.Time
	Count int
}

type HistogramBucket struct {
	Label string
	Count int
}

type ModelTokens struct {
	Model  string
	Tokens int
}

type Overview struct {
	SessionCount int
	MessageCount int
	Tokens       TokenTotals
	TokenTrend   TokenTrend
	ByModel      []ModelTokens
	ByProject    []ProjectTokens
	TopSessions  []SessionSummary
}

type Performance struct {
	Scope       PerformanceScope
	Overall     PerformanceScore
	Outcome     PerformanceLane
	Discipline  PerformanceLane
	Efficiency  PerformanceLane
	Robustness  PerformanceLane
	Diagnostics []PerformanceDiagnostic
}

type PerformanceDiagnostic struct {
	Group       string
	Label       string
	Value       string
	Detail      string
	Current     float64
	Baseline    float64
	HasBaseline bool
	Trend       TrendDirection
	Series      []PerformancePoint
}

type PerformanceLane struct {
	Label    string
	Detail   string
	Score    int
	HasScore bool
	Trend    TrendDirection
	Metrics  []PerformanceMetric
}

type PerformanceMetric struct {
	ID             string
	Label          string
	Value          string
	Detail         string
	Question       string
	Formula        string
	Current        float64
	Baseline       float64
	DeltaText      string
	HasBaseline    bool
	Score          int
	ScoreWeight    float64
	HasScore       bool
	Trend          TrendDirection
	Status         PerformanceMetricStatus
	SampleCount    int
	HigherIsBetter bool
	Series         []PerformancePoint
}

type PerformanceMetricStatus int

type PerformancePoint struct {
	Timestamp   time.Time
	Value       float64
	SampleCount int
}

type PerformanceScope struct {
	SessionCount         int
	Providers            []string
	Models               []string
	PrimaryProvider      string
	PrimaryModel         string
	SingleProvider       bool
	SingleModel          bool
	SingleFamily         bool
	CurrentRange         TimeRange
	BaselineRange        TimeRange
	SequenceLoaded       bool
	SequenceSampleCount  int
	BaselineSessionCount int
}

type PerformanceScore struct {
	Score    int
	HasScore bool
	Trend    TrendDirection
}

type PerformanceSequenceSession struct {
	Timestamp                    time.Time
	Mutated                      bool
	MutationCount                int
	RewriteCount                 int
	TargetedMutationCount        int
	BlindMutationCount           int
	DistinctMutationTargets      int
	PatchHunkCount               int
	VerificationPassed           bool
	FirstPassResolved            bool
	CorrectionFollowups          int
	ReasoningLoopCount           int
	ActionCount                  int
	ActionsBeforeFirstMutation   int
	TokensBeforeFirstMutation    int
	UserTurnsBeforeFirstMutation int
	AssistantTurns               int
	VisibleReasoningChars        int
	HiddenThinkingTurns          int
}

type PositionTokenMetrics struct {
	Position           int
	AverageInputTokens float64
	AverageTurnTokens  float64
	SampleCount        int
}

type ProjectTokens struct {
	Project string
	Tokens  int
}

type SessionSummary struct {
	Project      string
	Slug         string
	SessionID    string
	FilePath     string
	Timestamp    time.Time
	MessageCount int
	Duration     time.Duration
	Tokens       int
}

type SessionToolMetrics struct {
	Timestamp        time.Time
	ToolCounts       map[string]int
	ActionCounts     map[string]int
	ToolErrorCounts  map[string]int
	ToolRejectCounts map[string]int
}

type SessionTurnMetrics struct {
	Timestamp time.Time
	Turns     []TurnTokens
}

type Sessions struct {
	AverageDuration       time.Duration
	AverageMessages       float64
	UserMessageCount      int
	AssistantMessageCount int
	UserAssistantRatio    float64
	AbandonedCount        int
	AbandonedRate         float64
	DurationHistogram     []HistogramBucket
	MessageHistogram      []HistogramBucket
	ClaudeTurnMetrics     []PositionTokenMetrics
}

type Snapshot struct {
	Overview    Overview
	Activity    Activity
	Sessions    Sessions
	Tools       Tools
	Performance Performance
}

type TimeRange struct {
	Start time.Time
	End   time.Time
}

type TokenTotals struct {
	Total      int
	Input      int
	Output     int
	CacheRead  int
	CacheWrite int
}

type TokenTrend struct {
	Direction     TrendDirection
	PercentChange int
}

type ToolCategoryShare struct {
	Read  float64
	Write float64
	Bash  float64
}

type ToolRateStat struct {
	Name  string
	Count int
	Total int
	Rate  float64
}

type ToolStat struct {
	Name  string
	Count int
}

type Tools struct {
	TotalCalls             int
	AverageCallsPerSession float64
	ErrorRate              float64
	RejectionRate          float64
	ReadWriteBashShare     ToolCategoryShare
	TopTools               []ToolStat
	CallsPerSession        []HistogramBucket
	ToolErrorRates         []ToolRateStat
	ToolRejectRates        []ToolRateStat
}

type TrendDirection int

type TurnTokens struct {
	InputTokens int
	TurnTokens  int
}