93b41ed07e
Decomposed the "God Class" `kdtree_analytics.go` into three distinct files: - `kdtree_analytics.go`: Core tree analytics - `peer_trust.go`: Peer trust scoring logic - `nat_metrics.go`: NAT-related metrics Renamed `ComputeDistanceDistribution` to `ComputeAxisDistributions` for clarity. Created `AUDIT-API.md` to document the findings and changes. Co-authored-by: Snider <631881+Snider@users.noreply.github.com>
61 lines
2.1 KiB
Go
61 lines
2.1 KiB
Go
package poindexter
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import (
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"math"
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"time"
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)
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// TrustMetrics tracks trust and reputation for peer selection.
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type TrustMetrics struct {
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// ReputationScore (0-1): aggregated trust score
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ReputationScore float64 `json:"reputationScore"`
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// SuccessfulTransactions: count of successful exchanges
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SuccessfulTransactions int64 `json:"successfulTransactions"`
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// FailedTransactions: count of failed/aborted exchanges
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FailedTransactions int64 `json:"failedTransactions"`
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// AgeSeconds: how long this peer has been known
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AgeSeconds int64 `json:"ageSeconds"`
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// LastSuccessAt: last successful interaction
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LastSuccessAt time.Time `json:"lastSuccessAt"`
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// LastFailureAt: last failed interaction
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LastFailureAt time.Time `json:"lastFailureAt"`
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// VouchCount: number of other peers vouching for this peer
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VouchCount int `json:"vouchCount"`
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// FlagCount: number of reports against this peer
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FlagCount int `json:"flagCount"`
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// ProofOfWork: computational proof of stake/work
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ProofOfWork float64 `json:"proofOfWork"`
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}
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// ComputeTrustScore calculates a composite trust score from trust metrics.
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func ComputeTrustScore(t TrustMetrics) float64 {
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total := t.SuccessfulTransactions + t.FailedTransactions
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if total == 0 {
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// New peer with no history: moderate trust with age bonus
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ageBonus := math.Min(float64(t.AgeSeconds)/(86400*30), 0.2) // Up to 0.2 for 30 days
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return 0.5 + ageBonus
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}
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// Base score from success rate
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successRate := float64(t.SuccessfulTransactions) / float64(total)
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// Volume confidence (more transactions = more confident)
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volumeConfidence := 1 - 1/(1+float64(total)/10)
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// Vouch/flag adjustment
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vouchBonus := math.Min(float64(t.VouchCount)*0.02, 0.15)
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flagPenalty := math.Min(float64(t.FlagCount)*0.05, 0.3)
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// Recency bonus (recent success = better)
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recencyBonus := 0.0
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if !t.LastSuccessAt.IsZero() {
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hoursSince := time.Since(t.LastSuccessAt).Hours()
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recencyBonus = 0.1 * math.Exp(-hoursSince/168) // Decays over ~1 week
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}
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// Proof of work bonus
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powBonus := math.Min(t.ProofOfWork*0.1, 0.1)
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score := successRate*volumeConfidence + vouchBonus - flagPenalty + recencyBonus + powBonus
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return math.Max(0, math.Min(1, score))
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}
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