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|
package backend
import (
"github.com/bradenaw/juniper/xslices"
"github.com/henrybear327/go-proton-api"
)
func merge(updates []update) []update {
if len(updates) < 2 {
return updates
}
if merged := merge(updates[1:]); xslices.IndexFunc(merged, func(other update) bool {
return other.replaces(updates[0])
}) < 0 {
return append([]update{updates[0]}, merged...)
} else {
return merged
}
}
type update interface {
replaces(other update) bool
_isUpdate()
}
type baseUpdate struct{}
func (baseUpdate) replaces(update) bool {
return false
}
func (baseUpdate) _isUpdate() {}
type userRefreshed struct {
baseUpdate
refresh proton.RefreshFlag
}
type messageCreated struct {
baseUpdate
messageID string
}
type messageUpdated struct {
baseUpdate
messageID string
}
func (update *messageUpdated) replaces(other update) bool {
switch other := other.(type) {
case *messageUpdated:
return update.messageID == other.messageID
default:
return false
}
}
type messageDeleted struct {
baseUpdate
messageID string
}
func (update *messageDeleted) replaces(other update) bool {
switch other := other.(type) {
case *messageCreated:
return update.messageID == other.messageID
case *messageUpdated:
return update.messageID == other.messageID
case *messageDeleted:
if update.messageID != other.messageID {
return false
}
panic("message deleted twice")
default:
return false
}
}
type labelCreated struct {
baseUpdate
labelID string
}
type labelUpdated struct {
baseUpdate
labelID string
}
func (update *labelUpdated) replaces(other update) bool {
switch other := other.(type) {
case *labelUpdated:
return update.labelID == other.labelID
default:
return false
}
}
type labelDeleted struct {
baseUpdate
labelID string
}
func (update *labelDeleted) replaces(other update) bool {
switch other := other.(type) {
case *labelCreated:
return update.labelID == other.labelID
case *labelUpdated:
return update.labelID == other.labelID
case *labelDeleted:
if update.labelID != other.labelID {
return false
}
panic("label deleted twice")
default:
return false
}
}
type addressCreated struct {
baseUpdate
addressID string
}
type addressUpdated struct {
baseUpdate
addressID string
}
func (update *addressUpdated) replaces(other update) bool {
switch other := other.(type) {
case *addressUpdated:
return update.addressID == other.addressID
default:
return false
}
}
type addressDeleted struct {
baseUpdate
addressID string
}
func (update *addressDeleted) replaces(other update) bool {
switch other := other.(type) {
case *addressCreated:
return update.addressID == other.addressID
case *addressUpdated:
return update.addressID == other.addressID
case *addressDeleted:
if update.addressID != other.addressID {
return false
}
panic("address deleted twice")
default:
return false
}
}
type userSettingsUpdate struct {
baseUpdate
settings proton.UserSettings
}
func (update *userSettingsUpdate) replaces(other update) bool {
switch other.(type) {
case *userSettingsUpdate:
return true
default:
return false
}
}
|
