/
utils.go
112 lines (90 loc) · 3.83 KB
/
utils.go
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package keeper
import (
"bytes"
"time"
"github.com/merlinslair/merlin/x/lockup/types"
sdk "github.com/cosmos/cosmos-sdk/types"
)
// combineKeys combine bytes array into a single bytes.
func combineKeys(keys ...[]byte) []byte {
return bytes.Join(keys, types.KeyIndexSeparator)
}
// getTimeKey returns the key used for getting a set of period locks
// where unlockTime is after a specific time.
func getTimeKey(timestamp time.Time) []byte {
timeBz := sdk.FormatTimeBytes(timestamp)
timeBzL := len(timeBz)
prefixL := len(types.KeyPrefixTimestamp)
bz := make([]byte, prefixL+8+timeBzL)
// copy the prefix
copy(bz[:prefixL], types.KeyPrefixTimestamp)
// copy the encoded time bytes length
copy(bz[prefixL:prefixL+8], sdk.Uint64ToBigEndian(uint64(timeBzL)))
// copy the encoded time bytes
copy(bz[prefixL+8:prefixL+8+timeBzL], timeBz)
return bz
}
// getDurationKey returns the key used for getting a set of period locks
// where duration is longer than a specific duration.
func getDurationKey(duration time.Duration) []byte {
if duration < 0 {
duration = 0
}
key := sdk.Uint64ToBigEndian(uint64(duration))
return combineKeys(types.KeyPrefixDuration, key)
}
func durationLockRefKeys(lock types.PeriodLock) ([][]byte, error) {
refKeys := [][]byte{}
durationKey := getDurationKey(lock.Duration)
owner, err := sdk.AccAddressFromBech32(lock.Owner)
if err != nil {
return nil, err
}
refKeys = append(refKeys, combineKeys(types.KeyPrefixLockDuration, durationKey))
refKeys = append(refKeys, combineKeys(types.KeyPrefixAccountLockDuration, owner, durationKey))
for _, coin := range lock.Coins {
denomBz := []byte(coin.Denom)
refKeys = append(refKeys, combineKeys(types.KeyPrefixDenomLockDuration, denomBz, durationKey))
refKeys = append(refKeys, combineKeys(types.KeyPrefixAccountDenomLockDuration, owner, denomBz, durationKey))
}
return refKeys, nil
}
func lockRefKeys(lock types.PeriodLock) ([][]byte, error) {
refKeys, _ := durationLockRefKeys(lock)
timeKey := getTimeKey(lock.EndTime)
owner, err := sdk.AccAddressFromBech32(lock.Owner)
if err != nil {
return nil, err
}
refKeys = append(refKeys, combineKeys(types.KeyPrefixLockTimestamp, timeKey))
refKeys = append(refKeys, combineKeys(types.KeyPrefixAccountLockTimestamp, owner, timeKey))
for _, coin := range lock.Coins {
denomBz := []byte(coin.Denom)
refKeys = append(refKeys, combineKeys(types.KeyPrefixDenomLockTimestamp, denomBz, timeKey))
refKeys = append(refKeys, combineKeys(types.KeyPrefixAccountDenomLockTimestamp, owner, denomBz, timeKey))
}
return refKeys, nil
}
// syntheticLockRefKeys are different from native lockRefKeys to avoid conflicts
// They differ by using the synth denom rather than the native denom.
// All the values at each lockref key points to the underlying lock ID of the synth lock though.
func syntheticLockRefKeys(lock types.PeriodLock, synthLock types.SyntheticLock) ([][]byte, error) {
// Note: syntheticLockRefKeys should be only used for querying and should not be combined with native lockup operations
// synthetic suffix denom should not conflict with native denom
refKeys := [][]byte{}
timeKey := getTimeKey(synthLock.EndTime)
durationKey := getDurationKey(synthLock.Duration)
owner, err := sdk.AccAddressFromBech32(lock.Owner)
if err != nil {
return nil, err
}
denomBz := []byte(synthLock.SynthDenom)
refKeys = append(refKeys, combineKeys(types.KeyPrefixDenomLockTimestamp, denomBz, timeKey))
refKeys = append(refKeys, combineKeys(types.KeyPrefixDenomLockDuration, denomBz, durationKey))
refKeys = append(refKeys, combineKeys(types.KeyPrefixAccountDenomLockTimestamp, owner, denomBz, timeKey))
refKeys = append(refKeys, combineKeys(types.KeyPrefixAccountDenomLockDuration, owner, denomBz, durationKey))
return refKeys, nil
}
func combineLocks(pl1 []types.PeriodLock, pl2 []types.PeriodLock) []types.PeriodLock {
return append(pl1, pl2...)
}