actions_asset_show.go

package horizon

import (
	"gitlab.com/tokend/horizon/render/hal"
	"gitlab.com/tokend/horizon/render/problem"
	"gitlab.com/tokend/horizon/resource"
)

type AssetsShowAction struct {
	Action
	Code  string
	Asset resource.Asset
}

func (action *AssetsShowAction) JSON() {
	action.Do(
		action.loadParams,
		action.loadData,
		func() {
			hal.Render(action.W, action.Asset)
		},
	)
}

func (action *AssetsShowAction) loadParams() {
	action.Code = action.GetString("code")
}

func (action *AssetsShowAction) loadData() {
	asset, err := action.CoreQ().Assets().ByCode(action.Code)
	if err != nil {
		action.Err = &problem.ServerError
		action.Log.WithStack(err).WithError(err).Error("Failed to load asset by code")
		return
	}

	if asset == nil {
		action.Err = &problem.NotFound
		return
	}

	action.Asset.Populate(asset)
}

type AssetHoldersShowAction struct {
	Action
	code     string
	balances []resource.Balance
}

func (action *AssetHoldersShowAction) JSON() {
	action.Do(
		action.loadParams,
		action.checkIsAllowed,
		action.loadData,
		func() {
			hal.Render(action.W, action.balances)
		},
	)
}

func (action *AssetHoldersShowAction) loadParams() {
	action.code = action.GetNonEmptyString("code")
}

func (action *AssetHoldersShowAction) checkIsAllowed() {
	action.isAllowed("")
}

func (action *AssetHoldersShowAction) loadData() {
	balances, err := action.CoreQ().Balances().ByAsset(action.code).NonZero().Select()
	if err != nil {
		action.Err = &problem.ServerError
		action.Log.WithStack(err).WithError(err).Error("Failed to load asset by code")
		return
	}

	action.balances = make([]resource.Balance, 0, len(balances))
	for _, coreBalance := range balances {
		resourceBalance := resource.Balance{}
		resourceBalance.Populate(coreBalance)
		action.balances = append(action.balances, resourceBalance)
	}
}