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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,215 @@ | ||
| package datagen | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/hex" | ||
| "fmt" | ||
| "log" | ||
| "math/rand" | ||
| "time" | ||
|
|
||
| "github.com/babylonlabs-io/staking-api-service/internal/shared/types" | ||
| "github.com/btcsuite/btcd/btcec/v2" | ||
| "github.com/btcsuite/btcd/btcec/v2/schnorr" | ||
| "github.com/btcsuite/btcd/chaincfg/chainhash" | ||
| "github.com/btcsuite/btcd/wire" | ||
| ) | ||
|
|
||
| const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" | ||
|
|
||
| func GenRandomByteArray(r *rand.Rand, length uint64) []byte { | ||
| newHeaderBytes := make([]byte, length) | ||
| r.Read(newHeaderBytes) | ||
| return newHeaderBytes | ||
| } | ||
|
|
||
| func RandomPk() (string, error) { | ||
| fpPirvKey, err := btcec.NewPrivateKey() | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| fpPk := fpPirvKey.PubKey() | ||
| return hex.EncodeToString(schnorr.SerializePubKey(fpPk)), nil | ||
| } | ||
|
|
||
| func GeneratePks(numOfKeys int) []string { | ||
| var pks []string | ||
| for i := 0; i < numOfKeys; i++ { | ||
| k, err := RandomPk() | ||
| if err != nil { | ||
| log.Fatalf("Failed to generate random pk: %v", err) | ||
| } | ||
| pks = append(pks, k) | ||
| } | ||
| return pks | ||
| } | ||
|
|
||
| // RandomPostiveFloat64 generates a random float64 value greater than 0. | ||
| func RandomPostiveFloat64(r *rand.Rand) float64 { | ||
| for { | ||
| f := r.Float64() // Generate a random float64 | ||
| if f > 0 { | ||
| return f | ||
| } | ||
| // If f is 0 (extremely rare), regenerate | ||
| } | ||
| } | ||
|
|
||
| // RandomPositiveInt generates a random positive integer from 1 to max. | ||
| func RandomPositiveInt(r *rand.Rand, max int) int { | ||
| // Generate a random number from 1 to max (inclusive) | ||
| return r.Intn(max) + 1 | ||
| } | ||
|
|
||
| // RandomString generates a random alphanumeric string of length n. | ||
| func RandomString(r *rand.Rand, n int) string { | ||
| result := make([]byte, n) | ||
| letterLen := len(letters) | ||
| for i := range result { | ||
| num := r.Int() % letterLen | ||
| result[i] = letters[num] | ||
| } | ||
| return string(result) | ||
| } | ||
|
|
||
| // RandomAmount generates a random BTC amount from 0.1 to 10000 | ||
| // the returned value is in satoshis | ||
| func RandomAmount(r *rand.Rand) int64 { | ||
| // Generate a random value range from 0.1 to 10000 BTC | ||
| randomBTC := r.Float64()*(9999.9-0.1) + 0.1 | ||
| // convert to satoshi | ||
| return int64(randomBTC*1e8) + 1 | ||
| } | ||
|
|
||
| // GenerateRandomTx generates a random transaction with random values for each field. | ||
| func GenerateRandomTx( | ||
| r *rand.Rand, | ||
| options *struct{ DisableRbf bool }, | ||
| ) (*wire.MsgTx, string, error) { | ||
| sequence := r.Uint32() | ||
| if options != nil && options.DisableRbf { | ||
| sequence = wire.MaxTxInSequenceNum | ||
| } | ||
| tx := &wire.MsgTx{ | ||
| Version: 1, | ||
| TxIn: []*wire.TxIn{ | ||
| { | ||
| PreviousOutPoint: wire.OutPoint{ | ||
| Hash: chainhash.HashH(GenRandomByteArray(r, 10)), | ||
| Index: r.Uint32(), | ||
| }, | ||
| SignatureScript: []byte{}, | ||
| Sequence: sequence, | ||
| }, | ||
| }, | ||
| TxOut: []*wire.TxOut{ | ||
| { | ||
| Value: int64(r.Int31()), | ||
| PkScript: GenRandomByteArray(r, 80), | ||
| }, | ||
| }, | ||
| LockTime: 0, | ||
| } | ||
| var buf bytes.Buffer | ||
| if err := tx.Serialize(&buf); err != nil { | ||
| return nil, "", err | ||
| } | ||
| txHex := hex.EncodeToString(buf.Bytes()) | ||
|
|
||
| return tx, txHex, nil | ||
| } | ||
|
|
||
| // GenerateRandomTxWithOutput generates a random transaction with random values | ||
| // for each field. | ||
| func RandomBytes(r *rand.Rand, n uint64) ([]byte, string) { | ||
| randomBytes := GenRandomByteArray(r, n) | ||
| return randomBytes, hex.EncodeToString(randomBytes) | ||
| } | ||
|
|
||
| // GenerateRandomTimestamp generates a random timestamp before the specified timestamp. | ||
| // If beforeTimestamp is 0, then the current time is used. | ||
| func GenerateRandomTimestamp(afterTimestamp, beforeTimestamp int64) int64 { | ||
| timeNow := time.Now().Unix() | ||
| if beforeTimestamp == 0 && afterTimestamp == 0 { | ||
| return timeNow | ||
| } | ||
| if beforeTimestamp == 0 { | ||
| return afterTimestamp + rand.Int63n(timeNow-afterTimestamp) | ||
| } else if afterTimestamp == 0 { | ||
| // Generate a reasonable timestamp between 1 second to 6 months in the past | ||
| sixMonthsInSeconds := int64(6 * 30 * 24 * 60 * 60) | ||
| return beforeTimestamp - rand.Int63n(sixMonthsInSeconds) | ||
| } | ||
| return afterTimestamp + rand.Int63n(beforeTimestamp-afterTimestamp) | ||
| } | ||
|
|
||
| // GenerateRandomFinalityProviderDetail generates a random number of finality providers | ||
| func GenerateRandomFinalityProviderDetail(r *rand.Rand, numOfFps uint64) []types.FinalityProviderDetails { | ||
| var finalityProviders []types.FinalityProviderDetails | ||
|
|
||
| for i := uint64(0); i < numOfFps; i++ { | ||
| fpPkInHex, err := RandomPk() | ||
| if err != nil { | ||
| log.Fatalf("failed to generate random public key: %v", err) | ||
| } | ||
|
|
||
| randomStr := RandomString(r, 10) | ||
| finalityProviders = append(finalityProviders, types.FinalityProviderDetails{ | ||
| Description: types.FinalityProviderDescription{ | ||
| Moniker: "Moniker" + randomStr, | ||
| Identity: "Identity" + randomStr, | ||
| Website: "Website" + randomStr, | ||
| SecurityContact: "SecurityContact" + randomStr, | ||
| Details: "Details" + randomStr, | ||
| }, | ||
| Commission: fmt.Sprintf("%f", RandomPostiveFloat64(r)), | ||
| BtcPk: fpPkInHex, | ||
| }) | ||
| } | ||
| return finalityProviders | ||
| } | ||
|
|
||
| func RandomFinalityProviderState(r *rand.Rand) types.FinalityProviderState { | ||
| states := []types.FinalityProviderState{types.FinalityProviderStateActive, types.FinalityProviderStateStandby} | ||
| return states[r.Intn(len(states))] | ||
| } | ||
|
|
||
| func GenerateRandomBabylonParams(r *rand.Rand) types.BabylonParams { | ||
| return types.BabylonParams{ | ||
| Version: r.Intn(10), | ||
| CovenantPKs: GeneratePks(r.Intn(10)), | ||
| CovenantQuorum: r.Intn(10), | ||
| MaxStakingAmount: int64(r.Intn(1000000000000000000)), | ||
| MinStakingAmount: int64(r.Intn(1000000000000000000)), | ||
| MaxStakingTime: int64(r.Intn(1000000000000000000)), | ||
| MinStakingTime: int64(r.Intn(1000000000000000000)), | ||
| SlashingPKScript: RandomString(r, 10), | ||
| MinSlashingTxFee: int64(r.Intn(1000000000000000000)), | ||
| SlashingRate: RandomPostiveFloat64(r), | ||
| MinUnbondingTime: int64(r.Intn(1000000000000000000)), | ||
| UnbondingFee: int64(r.Intn(1000000000000000000)), | ||
| MinCommissionRate: RandomPostiveFloat64(r), | ||
| MaxActiveFinalityProviders: r.Intn(10), | ||
| DelegationCreationBaseGasFee: int64(r.Intn(1000000000000000000)), | ||
| } | ||
| } | ||
|
|
||
| func GenerateRandomBTCParams(r *rand.Rand) types.BTCParams { | ||
| return types.BTCParams{ | ||
| Version: r.Intn(10), | ||
| BTCConfirmationDepth: r.Intn(10), | ||
| } | ||
| } | ||
|
|
||
| func RandomDelegationState(r *rand.Rand) types.DelegationState { | ||
| states := []types.DelegationState{types.Active, types.UnbondingRequested, types.Unbonding, types.Unbonded, types.Withdrawn} | ||
| return states[r.Intn(len(states))] | ||
| } | ||
|
|
||
| func RandomTransactionInfo(r *rand.Rand) types.TransactionInfo { | ||
| _, txHex, _ := GenerateRandomTx(r, nil) | ||
| return types.TransactionInfo{ | ||
| TxHex: txHex, | ||
| OutputIndex: r.Intn(100), | ||
| } | ||
| } |
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