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arikawa/state/store/defaultstore/member.go
diamondburned c6679dc52c State: Separate Store into smaller interfaces, Cabinet API
This commit refactors the Store interface in State into smaller
interfaces in package store. These interfaces are combined into one
structure called a "Cabinet". The default implementation of those
interfaces have been rewritten in package defaultstore, while the old
no-op implementation stays with the store package.

This commit also omitted several state handlers for user events, as it
is unclear what they are actually structured like.
2020-11-29 16:57:58 -08:00

99 lines
1.8 KiB
Go

package defaultstore
import (
"sync"
"github.com/diamondburned/arikawa/v2/discord"
"github.com/diamondburned/arikawa/v2/internal/moreatomic"
"github.com/diamondburned/arikawa/v2/state/store"
)
type Member struct {
guilds moreatomic.Map // discord.GuildID -> *guildMembers
}
type guildMembers struct {
mut sync.Mutex
members map[discord.UserID]discord.Member
}
var _ store.MemberStore = (*Member)(nil)
func NewMember() *Member {
return &Member{
guilds: *moreatomic.NewMap(func() interface{} {
return &guildMembers{
members: make(map[discord.UserID]discord.Member, 1),
}
}),
}
}
func (s *Member) Reset() error {
return s.guilds.Reset()
}
func (s *Member) Member(guildID discord.GuildID, userID discord.UserID) (*discord.Member, error) {
iv, ok := s.guilds.Load(guildID)
if !ok {
return nil, store.ErrNotFound
}
gm := iv.(*guildMembers)
gm.mut.Lock()
defer gm.mut.Unlock()
m, ok := gm.members[userID]
if ok {
return &m, nil
}
return nil, store.ErrNotFound
}
func (s *Member) Members(guildID discord.GuildID) ([]discord.Member, error) {
iv, ok := s.guilds.Load(guildID)
if !ok {
return nil, store.ErrNotFound
}
gm := iv.(*guildMembers)
gm.mut.Lock()
defer gm.mut.Unlock()
var members = make([]discord.Member, 0, len(gm.members))
for _, m := range gm.members {
members = append(members, m)
}
return members, nil
}
func (s *Member) MemberSet(guildID discord.GuildID, member discord.Member) error {
iv, _ := s.guilds.LoadOrStore(guildID)
gm := iv.(*guildMembers)
gm.mut.Lock()
gm.members[member.User.ID] = member
gm.mut.Unlock()
return nil
}
func (s *Member) MemberRemove(guildID discord.GuildID, userID discord.UserID) error {
iv, ok := s.guilds.Load(guildID)
if !ok {
return nil
}
gm := iv.(*guildMembers)
gm.mut.Lock()
delete(gm.members, userID)
gm.mut.Unlock()
return nil
}