commit inicial do projeto

internal/consensus/slash.go

@@ -0,0 +1,28 @@
+package consensus
+
+import (
+	"dejo_node/internal/staking"
+	"log"
+)
+
+const SlashAmount = 50 // tokens penalizados
+
+// ApplySlash penaliza validadores que não votaram corretamente.
+func ApplySlash(precommits map[string]string, blockHash string, stakingStore *staking.StakingStore, validatorSet *ValidatorSet) {
+	for _, val := range validatorSet.Validators {
+		vote, voted := precommits[val.Address]
+		if !voted || vote != blockHash {
+			// Slashing
+			info, exists := stakingStore.GetStakeInfo(val.Address)
+			if exists && info.Amount >= SlashAmount {
+				newInfo := staking.StakeInfo{
+					Amount:   info.Amount - SlashAmount,
+					Duration: uint64(info.Duration),
+				}
+				stakingStore.UpdateStakeInfo(val.Address, newInfo)
+				log.Printf("⚡ SLASH: Validador %s penalizado em %d tokens\n", val.Address, SlashAmount)
+			}
+		}
+	}
+	_ = stakingStore.SaveToDisk("data/staking.db")
+}