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assets.go
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assets.go
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package services
import (
"github.com/everstake/teztracker/models"
"sort"
)
func (t *TezTracker) TokensList(limiter Limiter) (count int64, assets []models.AssetInfo, err error) {
r := t.repoProvider.GetAssets()
count, assets, err = r.GetTokensList()
if err != nil {
return count, assets, err
}
for i := range assets {
assets[i].Balance, err = t.TokenTotalSupply(assets[i].AccountId)
if err != nil {
return count, assets, err
}
}
return count,
assets, nil
}
func (t *TezTracker) TokenInfo(assetID string) (info models.AssetInfo, err error) {
r := t.repoProvider.GetAssets()
info, err = r.GetTokenInfo(assetID)
if err != nil {
return info, err
}
info.Balance, err = t.TokenTotalSupply(info.AccountId)
if err != nil {
return info, err
}
return info, nil
}
func (t *TezTracker) TokenTotalSupply(assetID string) (totalSupply int64, err error) {
r := t.repoProvider.GetAssets()
h, err := r.GetTokenHolders(assetID)
if err != nil {
return 0, err
}
for j := range h {
totalSupply += int64(h[j].Balance)
}
return totalSupply, nil
}
func (t *TezTracker) TokenOperations(assetIDs, operationsTypes, accountIDs []string, blockLevels []int64, limits Limiter) (count int64, operations []models.AssetOperationReport, err error) {
count, operations, err = t.repoProvider.GetAssets().GetAssetOperations(assetIDs, operationsTypes, accountIDs, blockLevels, limits.Limit(), limits.Offset())
if err != nil {
return 0, operations, err
}
return count, operations, nil
}
func (t *TezTracker) TokenHolders(assetID string) (holders []models.AssetHolder, err error) {
r := t.repoProvider.GetAssets()
holders, err = r.GetTokenHolders(assetID)
if err != nil {
return nil, err
}
return orderAndTruncateHoldersList(holders), nil
}
func orderAndTruncateHoldersList(holders []models.AssetHolder) []models.AssetHolder {
if len(holders) == 0 {
return nil
}
//Desc order
sort.Slice(holders, func(i, j int) bool { return holders[i].Balance > holders[j].Balance })
//Remove excess records from bigmap
for i := len(holders) - 1; holders[i].Balance == 0; i-- {
return holders[:i]
}
return holders
}