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message.go
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message.go
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package manager
import (
"github.com/emilhauk/chitchat/internal/model"
"github.com/google/uuid"
"time"
)
type MessageBackend interface {
Create(channelUUID string, message model.Message) error
FindForChannel(channelUUID string, limit, offset int32) ([]model.Message, error)
FindLastMessageForChannels(channelUUIDs ...string) ([]model.Message, error)
}
type Message struct {
messageBackend MessageBackend
}
func NewMessageManager(messageBackend MessageBackend) Message {
return Message{
messageBackend: messageBackend,
}
}
func (m Message) Send(channel model.Channel, message model.Message) (model.Message, error) {
message.UUID = uuid.NewString()
message.Version = 1
message.SentAt = time.Now()
message.Direction = model.DirectionOut
err := m.messageBackend.Create(channel.UUID, message)
return message, err
}
func (m Message) FindMessagesForChannel(channelUUID string) ([]model.Message, error) {
return m.messageBackend.FindForChannel(channelUUID, 100, 0)
}
func (m Message) FindLastMessageForChannels(channelUUIDs ...string) ([]model.Message, error) {
return m.messageBackend.FindLastMessageForChannels(channelUUIDs...)
}