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package state
import (
"encoding/json"
"slices"
"github.com/google/btree"
"github.com/kyren223/eko/internal/data"
"github.com/kyren223/eko/internal/packet"
"github.com/kyren223/eko/pkg/assert"
"github.com/kyren223/eko/pkg/snowflake"
)
type FrequencyState struct {
IncompleteMessage string
Offset int
MaxHeight int
}
type state struct {
UserID *snowflake.ID
// Key is either a frequency or receiver
FrequencyState map[snowflake.ID]FrequencyState // key is frequency id
LastFrequency map[snowflake.ID]snowflake.ID // key is network id
Messages map[snowflake.ID]*btree.BTreeG[data.Message] // key is frequency id or receiver id
Networks map[snowflake.ID]data.Network // key is network id
Frequencies map[snowflake.ID][]data.Frequency // key is network id
Members map[snowflake.ID]map[snowflake.ID]data.Member // key is network id then user id
Users map[snowflake.ID]data.User // key is user id
}
var State state = state{
UserID: nil,
FrequencyState: map[snowflake.ID]FrequencyState{},
LastFrequency: map[snowflake.ID]snowflake.ID{},
Messages: map[snowflake.ID]*btree.BTreeG[data.Message]{},
Networks: map[snowflake.ID]data.Network{},
Frequencies: map[snowflake.ID][]data.Frequency{},
Members: map[snowflake.ID]map[snowflake.ID]data.Member{},
Users: map[snowflake.ID]data.User{},
}
type UserData struct {
Networks []snowflake.ID
}
var Data UserData = UserData{
Networks: []snowflake.ID{},
}
func UpdateNetworks(info *packet.NetworksInfo) {
networks := State.Networks
for _, removedNetworkId := range info.RemovedNetworks {
delete(networks, removedNetworkId)
delete(State.Frequencies, removedNetworkId)
delete(State.Members, removedNetworkId)
for i, network := range Data.Networks {
if network == removedNetworkId {
copy(Data.Networks[i:], Data.Networks[i+1:])
Data.Networks = Data.Networks[:len(Data.Networks)-1]
break
}
}
}
for _, network := range info.Networks {
if _, ok := networks[network.ID]; !ok {
Data.Networks = append(Data.Networks, network.ID)
}
networks[network.ID] = network.Network
State.Frequencies[network.ID] = network.Frequencies
for _, member := range network.Members {
if State.Members[network.ID] == nil {
State.Members[network.ID] = map[snowflake.ID]data.Member{}
}
State.Members[network.ID][member.UserID] = member
}
for _, user := range network.Users {
State.Users[user.ID] = user
}
}
}
func UpdateFrequencies(info *packet.FrequenciesInfo) {
// TODO: check this
frequencies := State.Frequencies[info.Network]
for _, newFrequency := range info.Frequencies {
add := true
for i, existingFrequency := range frequencies {
if existingFrequency.ID == newFrequency.ID {
add = false
if newFrequency.Position == -1 {
newFrequency.Position = existingFrequency.Position
}
frequencies[i] = newFrequency
break
}
}
if add {
frequencies = append(frequencies, newFrequency)
}
}
frequencies = slices.DeleteFunc(frequencies, func(frequency data.Frequency) bool {
return slices.Contains(info.RemovedFrequencies, frequency.ID)
})
slices.SortFunc(frequencies, func(a, b data.Frequency) int {
return int(a.Position - b.Position)
})
}
func UpdateMessages(info *packet.MessagesInfo) {
for _, id := range info.RemovedMessages {
for _, btree := range State.Messages {
btree.Delete(data.Message{ID: id})
}
}
for _, message := range info.Messages {
msgSource := message.FrequencyID
if msgSource == nil {
msgSource = message.ReceiverID
}
bt := State.Messages[*msgSource]
if bt == nil {
bt = btree.NewG(2, func(a, b data.Message) bool {
return a.ID < b.ID
})
State.Messages[*msgSource] = bt
}
bt.ReplaceOrInsert(message)
}
}
func UpdateMembers(info *packet.MembersInfo) {
for _, member := range info.Members {
if State.Members[info.Network] == nil {
State.Members[info.Network] = map[snowflake.ID]data.Member{}
}
State.Members[info.Network][member.UserID] = member
}
for _, removedMember := range info.RemovedMembers {
delete(State.Members[info.Network], removedMember)
if removedMember != *State.UserID {
continue
}
delete(State.Networks, info.Network)
delete(State.Frequencies, info.Network)
delete(State.Members, info.Network)
for i, network := range Data.Networks {
if network == info.Network {
copy(Data.Networks[i:], Data.Networks[i+1:])
Data.Networks = Data.Networks[:len(Data.Networks)-1]
break
}
}
}
for _, user := range info.Users {
State.Users[user.ID] = user
}
}
func NetworkId(index int) *snowflake.ID {
if 0 <= index && index < len(Data.Networks) {
return &Data.Networks[index]
}
return nil
}
func JsonUserData() string {
bytes, err := json.Marshal(Data)
assert.NoError(err, "marshling should never fail")
return string(bytes)
}
func FromJsonUserDat(s string) {
var data UserData
err := json.Unmarshal([]byte(s), &data)
if err != nil {
return
}
Data = data
}
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