Update mina.go (#60)

Taking the code from: #59 Closes: #38 Closes: #59 Tested working by running `go run main.go` ``` 2024/10/02 09:16:21 Calculating Nakamoto coefficient for Algo Total voting power: 1264449527262260 The Nakamoto coefficient for Algorand is 10 2024/10/02 09:16:22 Successfully calculated Nakamoto coefficient for Algo: 10 2024/10/02 09:16:22 Calculating Nakamoto coefficient for Aptos Total voting power: 86647076990866825 The Nakomoto coefficient for Aptos is 23 2024/10/02 09:16:25 Successfully calculated Nakamoto coefficient for Aptos: 23 2024/10/02 09:16:25 Calculating Nakamoto coefficient for Cosmos 2024/10/02 09:16:25 Fetching data for cosmos 2024/10/02 09:16:27 Voting powers for cosmos: 180 validators with a total voting power of 251261859069432 2024/10/02 09:16:27 The Nakamoto coefficient for cosmos is 7 2024/10/02 09:16:27 Successfully calculated Nakamoto coefficient for Cosmos: 7 2024/10/02 09:16:27 Calculating Nakamoto coefficient for Avalanche Total voting power: 210452957171923092 The Nakamoto coefficient for Avalanche is 25 2024/10/02 09:16:28 Successfully calculated Nakamoto coefficient for Avalanche: 25 2024/10/02 09:16:28 Calculating Nakamoto coefficient for Agoric 2024/10/02 09:16:28 Fetching data for agoric 2024/10/02 09:16:30 Voting powers for agoric: 97 validators with a total voting power of 601351699150664 2024/10/02 09:16:30 The Nakamoto coefficient for agoric is 6 2024/10/02 09:16:30 Successfully calculated Nakamoto coefficient for Agoric: 6 2024/10/02 09:16:30 Calculating Nakamoto coefficient for BNB Smart Chain The Nakamoto coefficient for BNB Smart Chain is 7 2024/10/02 09:16:31 Successfully calculated Nakamoto coefficient for BNB Smart Chain: 7 2024/10/02 09:16:31 Calculating Nakamoto coefficient for Polkadot Total voting power: 8832896609170143564 The Nakamoto coefficient for Polkadot is 123 2024/10/02 09:16:33 Successfully calculated Nakamoto coefficient for Polkadot: 123 2024/10/02 09:16:33 Calculating Nakamoto coefficient for MultiversX Total voting power: 3201 The Nakamoto coefficient for MultiversX is 8 2024/10/02 09:16:34 Successfully calculated Nakamoto coefficient for MultiversX: 8 2024/10/02 09:16:34 Calculating Nakamoto coefficient for Graph Protocol Total voting power: 606587150229994033545772962 The Nakamoto coefficient for graph protocol is 3 2024/10/02 09:16:35 Successfully calculated Nakamoto coefficient for Graph Protocol: 3 2024/10/02 09:16:35 Calculating Nakamoto coefficient for Hedera Total voting power for Hedera is: 2.0967741928e+10 The Nakamoto coefficient for Hedera is 7 2024/10/02 09:16:36 Successfully calculated Nakamoto coefficient for Hedera: 7 2024/10/02 09:16:36 Calculating Nakamoto coefficient for Juno 2024/10/02 09:16:36 Fetching data for juno 2024/10/02 09:16:38 Voting powers for juno: 100 validators with a total voting power of 50628485467111 2024/10/02 09:16:38 The Nakamoto coefficient for juno is 8 2024/10/02 09:16:38 Successfully calculated Nakamoto coefficient for Juno: 8 2024/10/02 09:16:38 Calculating Nakamoto coefficient for Polygon Total voting power: 3493490378 The Nakamoto coefficient for 0xPolygon is 4 2024/10/02 09:16:41 Successfully calculated Nakamoto coefficient for Polygon: 4 2024/10/02 09:16:41 Calculating Nakamoto coefficient for Mina Protocol The Nakamoto coefficient for Mina is 11 2024/10/02 09:16:46 Successfully calculated Nakamoto coefficient for Mina Protocol: 11 2024/10/02 09:16:46 Calculating Nakamoto coefficient for Near Protocol Total voting power: 622511001023691052687778204513616 The Nakamoto coefficient for near protocol is 11 2024/10/02 09:16:47 Successfully calculated Nakamoto coefficient for Near Protocol: 11 2024/10/02 09:16:47 Calculating Nakamoto coefficient for Osmosis 2024/10/02 09:16:47 Fetching data for osmosis 2024/10/02 09:16:48 Voting powers for osmosis: 150 validators with a total voting power of 387112086261920 2024/10/02 09:16:48 The Nakamoto coefficient for osmosis is 8 2024/10/02 09:16:48 Successfully calculated Nakamoto coefficient for Osmosis: 8 2024/10/02 09:16:48 Calculating Nakamoto coefficient for Pulsechain Total voting power: 622760463248 The Nakamoto coefficient for Pulsechain is 5 2024/10/02 09:16:49 Successfully calculated Nakamoto coefficient for Pulsechain: 5 2024/10/02 09:16:49 Calculating Nakamoto coefficient for Regen Network 2024/10/02 09:16:49 Fetching data for regen 2024/10/02 09:16:50 Voting powers for regen: 21 validators with a total voting power of 137633840818883 2024/10/02 09:16:50 The Nakamoto coefficient for regen is 5 2024/10/02 09:16:50 Successfully calculated Nakamoto coefficient for Regen Network: 5 2024/10/02 09:16:50 Calculating Nakamoto coefficient for Thorchain Total voting power: 9804873707047115 The Nakamoto coefficient for thorchain is 31 2024/10/02 09:16:51 Successfully calculated Nakamoto coefficient for Thorchain: 31 2024/10/02 09:16:51 Calculating Nakamoto coefficient for Sei 2024/10/02 09:16:51 Attempting to calculate Sei Nakamoto coefficient... 2024/10/02 09:16:51 Fetching data for sei 2024/10/02 09:16:52 Voting powers for sei: 39 validators with a total voting power of 5423684392022587 2024/10/02 09:16:52 The Nakamoto coefficient for sei is 8 2024/10/02 09:16:52 Successfully calculated Nakamoto coefficient for Sei: 8 2024/10/02 09:16:52 Calculating Nakamoto coefficient for Solana 2024/10/02 09:16:52 Error in chain Solana: json: cannot unmarshal object into Go value of type chains.SolanaResponse 2024/10/02 09:16:52 Failed to update chain info: SOL json: cannot unmarshal object into Go value of type chains.SolanaResponse 2024/10/02 09:16:52 Calculating Nakamoto coefficient for Stargaze 2024/10/02 09:16:52 Attempting to calculate Stargaze Nakamoto coefficient... 2024/10/02 09:16:52 Fetching data for stargaze 2024/10/02 09:16:53 Voting powers for stargaze: 129 validators with a total voting power of 1056493403698422 2024/10/02 09:16:53 The Nakamoto coefficient for stargaze is 11 2024/10/02 09:16:53 Successfully calculated Nakamoto coefficient for Stargaze: 11 2024/10/02 09:16:53 Calculating Nakamoto coefficient for Sui Protocol Total voting power for sui: 10000 The Nakamoto coefficient for sui is 16 2024/10/02 09:16:54 Successfully calculated Nakamoto coefficient for Sui Protocol: 16 2024/10/02 09:16:54 Calculating Nakamoto coefficient for Celestia The Nakamoto coefficient for celestia is 8 2024/10/02 09:16:55 Successfully calculated Nakamoto coefficient for Celestia: 8 ```
xenowits · Oct 13, 2024 · f8d764e · f8d764e
1 parent 9b299bf
commit f8d764e
Showing 1 changed file with 19 additions and 11 deletions.
diff --git a/core/chains/mina.go b/core/chains/mina.go
@@ -38,6 +38,7 @@ func reverse(numbers []float64) {
 
 func Mina() (int, error) {
 	var votingPowers []float64
+	var totalStake float64
 	pageNo, entriesPerPage := 0, 50
 	url := ""
 	ctx, cancelFunc := context.WithTimeout(context.Background(), 10*time.Second)
@@ -58,51 +59,58 @@ func Mina() (int, error) {
 			log.Println(err)
 			return 0, errors.New("get request unsuccessful")
 		}
+		defer resp.Body.Close()
 
 		body, err := io.ReadAll(resp.Body)
 		if err != nil {
 			return 0, err
 		}
-		resp.Body.Close()
 
 		var response MinaResponse
 		err = json.Unmarshal(body, &response)
 		if err != nil {
 			return 0, err
 		}
 
-		// break if no more entries left
-		if len(response.Content) == 0 {
+		// Break if no content or all pages have been fetched
+		if len(response.Content) == 0 || pageNo >= response.TotalPages {
 			break
 		}
 
 		// loop through the validators voting powers
 		for _, ele := range response.Content {
 			votingPowers = append(votingPowers, ele.StakePercent)
+			// Accumulate total stake of all validators
+			totalStake += ele.StakePercent
 		}
 
 		// increment counters
 		pageNo += 1
 	}
 
-	sort.Float64s(votingPowers)
-	reverse(votingPowers)
+	// Sort voting powers in descending order
+	sort.Slice(votingPowers, func(i, j int) bool {
+		return votingPowers[i] > votingPowers[j]
+	})
 
-	// now we're ready to calculate the nakomoto coefficient
-	nakamotoCoefficient := calcNakamotoCoefficientForMina(votingPowers)
+	// now we're ready to calculate the Nakamoto coefficient
+	nakamotoCoefficient := calcNakamotoCoefficientForMina(votingPowers, totalStake)
 	fmt.Println("The Nakamoto coefficient for Mina is", nakamotoCoefficient)
 
 	return nakamotoCoefficient, nil
 }
 
-func calcNakamotoCoefficientForMina(votingPowers []float64) int {
-	// Mina uses Ouroboros which uses 50% of the total voting paper. Paper link: https://eprint.iacr.org/2017/573.pdf (Page 6)
-	var cumulativePercent, thresholdPercent float64 = 0.00, 50.00
+func calcNakamotoCoefficientForMina(votingPowers []float64, totalStake float64) int {
+	// Calculate 50% threshold dynamically based on total stake
+	var cumulativePercent float64 = 0.00
+	thresholdPercent := totalStake * 0.50
 	nakamotoCoefficient := 0
+
 	for _, vpp := range votingPowers {
-		// since this is the  actual voting percentage, no need to multiply with 100
+		// since this is the actual voting percentage, no need to multiply with 100
 		cumulativePercent += vpp
 		nakamotoCoefficient += 1
+		// Check if cumulative voting power exceeds 50% of total stake
 		if cumulativePercent >= thresholdPercent {
 			break
 		}