2020-01-18 07:07:52 +00:00
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package state
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import (
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"errors"
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"github.com/diamondburned/arikawa/discord"
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)
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// Store is the state storage. It should handle mutex itself, and it should only
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// concern itself with the local state.
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type Store interface {
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StoreGetter
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StoreModifier
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}
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// All methods in StoreGetter will be wrapped by the State. If the State can't
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// find anything in the storage, it will call the API itself and automatically
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// add what's missing into the storage.
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type StoreGetter interface {
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Self() (*discord.User, error)
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Channel(id discord.Snowflake) (*discord.Channel, error)
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Channels(guildID discord.Snowflake) ([]discord.Channel, error)
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PrivateChannels() ([]discord.Channel, error)
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Emoji(guildID, emojiID discord.Snowflake) (*discord.Emoji, error)
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Emojis(guildID discord.Snowflake) ([]discord.Emoji, error)
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Guild(id discord.Snowflake) (*discord.Guild, error)
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Guilds() ([]discord.Guild, error)
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Member(guildID, userID discord.Snowflake) (*discord.Member, error)
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Members(guildID discord.Snowflake) ([]discord.Member, error)
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Message(channelID, messageID discord.Snowflake) (*discord.Message, error)
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Messages(channelID discord.Snowflake) ([]discord.Message, error)
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2020-01-18 19:34:08 +00:00
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// These don't get fetched from the API, it's Gateway only.
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2020-01-18 07:07:52 +00:00
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Presence(guildID, userID discord.Snowflake) (*discord.Presence, error)
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Presences(guildID discord.Snowflake) ([]discord.Presence, error)
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Role(guildID, roleID discord.Snowflake) (*discord.Role, error)
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Roles(guildID discord.Snowflake) ([]discord.Role, error)
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}
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type StoreModifier interface {
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2020-01-18 07:10:42 +00:00
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SelfSet(me *discord.User) error
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2020-01-18 07:07:52 +00:00
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2020-01-18 21:04:12 +00:00
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// ChannelSet should switch on Type to know if it's a private channel or
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// not.
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2020-01-18 07:07:52 +00:00
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ChannelSet(*discord.Channel) error
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ChannelRemove(*discord.Channel) error
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EmojiSet(guildID discord.Snowflake, emojis []discord.Emoji) error
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GuildSet(*discord.Guild) error
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2020-01-18 21:04:12 +00:00
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GuildRemove(id discord.Snowflake) error
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2020-01-18 07:07:52 +00:00
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MemberSet(guildID discord.Snowflake, member *discord.Member) error
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MemberRemove(guildID, userID discord.Snowflake) error
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MessageSet(*discord.Message) error
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2020-01-18 21:04:12 +00:00
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MessageRemove(channelID, messageID discord.Snowflake) error
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2020-01-18 07:07:52 +00:00
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PresenceSet(guildID discord.Snowflake, presence *discord.Presence) error
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PresenceRemove(guildID, userID discord.Snowflake) error
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RoleSet(guildID discord.Snowflake, role *discord.Role) error
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RoleRemove(guildID, roleID discord.Snowflake) error
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// This should reset all the state to zero/null.
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Reset() error
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}
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// ErrStoreNotFound is an error that a store can use to return when something
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// isn't in the storage. There is no strict restrictions on what uses this (the
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// default one does, though), so be advised.
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var ErrStoreNotFound = errors.New("item not found in store")
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