bot

type Client interface {
	Logger() log.Logger

	// Close will clean up all disgo internals and close the discord gracefully.
	Close(ctx context.Context)

	// Token returns the configured bot token.
	Token() string

	// ApplicationID returns the application id.
	ApplicationID() snowflake.ID

	// ID returns the bot id.
	ID() snowflake.ID

	// Caches returns the cache.Caches used by the Client.
	Caches() cache.Caches

	// Rest returns the rest.Rest used by the Client.
	Rest() rest.Rest

	// AddEventListeners adds one or more EventListener(s) to the EventManager.
	AddEventListeners(listeners ...EventListener)

	// RemoveEventListeners removes one or more EventListener(s) from the EventManager
	RemoveEventListeners(listeners ...EventListener)

	// EventManager returns the EventManager used by the Client.
	EventManager() EventManager

	// ConnectGateway connects to the configured gateway.Gateway.
	ConnectGateway(ctx context.Context) error

	// Gateway returns the gateway.Gateway used by the Client.
	Gateway() gateway.Gateway

	// HasGateway returns whether the Client has a configured gateway.Gateway.
	HasGateway() bool

	// ConnectShardManager connects to the configured sharding.ShardManager.
	ConnectShardManager(ctx context.Context) error

	// ShardManager returns the sharding.ShardManager used by the Client.
	ShardManager() sharding.ShardManager

	// HasShardManager returns whether the Client has a configured sharding.ShardManager.
	HasShardManager() bool

	// Shard returns the gateway.Gateway the specific guildID runs on.
	Shard(guildID snowflake.ID) (gateway.Gateway, error)

	// Connect sends a discord.GatewayMessageDataVoiceStateUpdate to the specific gateway.Gateway and connects the bot to the specified channel.
	Connect(ctx context.Context, guildID snowflake.ID, channelID snowflake.ID) error

	// Disconnect sends a discord.GatewayMessageDataVoiceStateUpdate to the specific gateway.Gateway and disconnects the bot from this guild.
	Disconnect(ctx context.Context, guildID snowflake.ID) error

	// RequestMembers sends a discord.GatewayMessageDataRequestGuildMembers to the specific gateway.Gateway and requests the Member(s) of the specified guild.
	//  guildID  : is the snowflake of the guild to request the members of.
	//  presence : Weather or not to include discord.Presence data.
	//  nonce	 : The nonce to return to the discord.GatewayEventGuildMembersChunk.
	//  userIDs  : The snowflakes of the users to request the members of.
	RequestMembers(ctx context.Context, guildID snowflake.ID, presence bool, nonce string, userIDs ...snowflake.ID) error

	// RequestMembersWithQuery sends a discord.GatewayMessageDataRequestGuildMembers to the specific gateway.Gateway and requests the Member(s) of the specified guild.
	//  guildID  : is the snowflake of the guild to request the members of.
	//  presence : Weather or not to include discord.Presence data.
	//  nonce    : The nonce to return to the discord.GatewayEventGuildMembersChunk.
	//  query    : The query to use for the request.
	//  limit    : The number of discord.Member(s) to return.
	RequestMembersWithQuery(ctx context.Context, guildID snowflake.ID, presence bool, nonce string, query string, limit int) error

	// SetPresence sends a discord.GatewayMessageDataPresenceUpdate to the gateway.Gateway.
	SetPresence(ctx context.Context, presenceUpdate discord.GatewayMessageDataPresenceUpdate) error

	// SetPresenceForShard sends a discord.GatewayMessageDataPresenceUpdate to the specific gateway.Gateway.
	SetPresenceForShard(ctx context.Context, shardId int, presenceUpdate discord.GatewayMessageDataPresenceUpdate) error

	// MemberChunkingManager returns the MemberChunkingManager used by the Client.
	MemberChunkingManager() MemberChunkingManager

	// StartHTTPServer starts the configured HTTPServer used for interactions over webhooks.
	StartHTTPServer() error

	// HTTPServer returns the configured HTTPServer used for interactions over webhooks.
	HTTPServer() httpserver.Server

	// HasHTTPServer returns whether the Client has a configured HTTPServer.
	HasHTTPServer() bool
}

type Config struct {
	Logger log.Logger

	RestClient           rest.Client
	RestClientConfigOpts []rest.ConfigOpt
	Rest                 rest.Rest

	EventManager           EventManager
	EventManagerConfigOpts []EventManagerConfigOpt

	Gateway           gateway.Gateway
	GatewayConfigOpts []gateway.ConfigOpt

	ShardManager           sharding.ShardManager
	ShardManagerConfigOpts []sharding.ConfigOpt

	HTTPServer           httpserver.Server
	HTTPServerConfigOpts []httpserver.ConfigOpt

	Caches          cache.Caches
	CacheConfigOpts []cache.ConfigOpt

	MemberChunkingManager MemberChunkingManager
	MemberChunkingFilter  MemberChunkingFilter
}

type ConfigOpt func(config *Config)

type Event interface {
	Client() Client
	SequenceNumber() int
}

type EventListener interface {
	OnEvent(event Event)
}

type EventManager interface {
	// RawEventsEnabled returns whether events.RawEvent are enabled
	RawEventsEnabled() bool

	// AddEventListeners adds one or more EventListener(s) to the EventManager
	AddEventListeners(eventListeners ...EventListener)

	// RemoveEventListeners removes one or more EventListener(s) from the EventManager
	RemoveEventListeners(eventListeners ...EventListener)

	// HandleGatewayEvent calls the correct GatewayEventHandler for the payload
	HandleGatewayEvent(gatewayEventType discord.GatewayEventType, sequenceNumber int, shardID int, payload io.Reader)

	// HandleHTTPEvent calls the HTTPServerEventHandler for the payload
	HandleHTTPEvent(respondFunc httpserver.RespondFunc, payload io.Reader)

	// DispatchEvent dispatches a new Event to the Client's EventListener(s)
	DispatchEvent(event Event)
}

type EventManagerConfig struct {
	EventListeners     []EventListener
	RawEventsEnabled   bool
	AsyncEventsEnabled bool

	GatewayHandlers   map[discord.GatewayEventType]GatewayEventHandler
	HTTPServerHandler HTTPServerEventHandler
}

type EventManagerConfigOpt func(config *EventManagerConfig)

type GatewayEventHandler interface {
	EventType() discord.GatewayEventType
	New() any
	HandleGatewayEvent(client Client, sequenceNumber int, shardID int, v any)
}

type HTTPServerEventHandler interface {
	New() any
	HandleHTTPEvent(client Client, respondFunc func(response discord.InteractionResponse) error, v any)
}

type ListenerFunc[E Event] func(e E)

type MemberChunkingFilter func(guildID snowflake.ID) bool

type MemberChunkingManager interface {
	// MemberChunkingFilter returns the configured MemberChunkingFilter used by this MemberChunkingManager.
	MemberChunkingFilter() MemberChunkingFilter

	// HandleChunk handles the discord.GatewayEventGuildMembersChunk event payloads from the discord gateway.
	HandleChunk(payload discord.GatewayEventGuildMembersChunk)

	RequestMembers(guildID snowflake.ID, userIDs ...snowflake.ID) ([]discord.Member, error)
	RequestMembersWithQuery(guildID snowflake.ID, query string, limit int) ([]discord.Member, error)
	RequestMembersWithFilter(guildID snowflake.ID, memberFilterFunc func(member discord.Member) bool) ([]discord.Member, error)

	RequestMembersCtx(ctx context.Context, guildID snowflake.ID, userIDs ...snowflake.ID) ([]discord.Member, error)
	RequestMembersWithQueryCtx(ctx context.Context, guildID snowflake.ID, query string, limit int) ([]discord.Member, error)
	RequestMembersWithFilterCtx(ctx context.Context, guildID snowflake.ID, memberFilterFunc func(member discord.Member) bool) ([]discord.Member, error)

	RequestMembersChan(guildID snowflake.ID, userIDs ...snowflake.ID) (<-chan discord.Member, func(), error)
	RequestMembersWithQueryChan(guildID snowflake.ID, query string, limit int) (<-chan discord.Member, func(), error)
	RequestMembersWithFilterChan(guildID snowflake.ID, memberFilterFunc func(member discord.Member) bool) (<-chan discord.Member, func(), error)
}