package tg

// BrokerUpdateType distinguishes update types coming from the broker
type BrokerUpdateType string

const (
	// BMessage is a message update (mostly webhook updates)
	BMessage BrokerUpdateType = "message"

	// BFile is a file retrieval response update
	BFile BrokerUpdateType = "file"
)

// BrokerUpdate is what is sent by the broker as update
type BrokerUpdate struct {
	Type     BrokerUpdateType
	Callback *int
	Message  *APIMessage
	Bytes    *string
}

// ClientCommandType distinguishes requests sent by clients to the broker
type ClientCommandType string

const (
	// CmdSendTextMessage requests the broker to send a text message to a chat
	CmdSendTextMessage ClientCommandType = "sendText"

	// CmdSendPhoto requests the broker to send a photo to a chat
	CmdSendPhoto ClientCommandType = "sendPhoto"

	// CmdGetFile requests the broker to get a file from Telegram
	CmdGetFile ClientCommandType = "getFile"
)

// ClientTextMessageData is the required data for a CmdSendTextMessage request
type ClientTextMessageData struct {
	ChatID  int
	Text    string
	ReplyID *int
}

// ClientPhotoData is the required data for a CmdSendPhoto request
type ClientPhotoData struct {
	ChatID  int
	Bytes   string
	Caption *string
	ReplyID *int
}

// FileRequestData is the required data for a CmdGetFile request
type FileRequestData struct {
	FileID int
}

// ClientCommand is a request sent by clients to the broker
type ClientCommand struct {
	Type            ClientCommandType
	TextMessageData *ClientTextMessageData
	PhotoData       *ClientPhotoData
	FileRequestData *FileRequestData
	Callback        *int
}