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channel.go
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channel.go
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package postgres
import (
"context"
"time"
"github.com/gebv/hey"
"github.com/gebv/hey/utils"
uuid "github.com/satori/go.uuid"
)
func (s *Service) FindChannelByName(
ctx context.Context,
name string,
) (hey.Channel, error) {
// TODO: testings
var clientID = ClientIDFromContext(ctx)
return s.channels.FindChannelByName(clientID, name)
}
func (s *Service) CreateChannelName(
ctx context.Context,
name string,
userIDs []uuid.UUID,
) (uuid.UUID, uuid.UUID, error) {
var channelID = uuid.NewV4()
var rootThreadID = uuid.NewV4()
var clientID = ClientIDFromContext(ctx)
if err := utils.ValidName(name); err != nil {
return uuid.Nil, uuid.Nil, err
}
return s.createChannel(
ctx,
clientID,
channelID,
rootThreadID,
name,
userIDs,
)
}
func (s *Service) CreateChannel(
ctx context.Context,
userIDs []uuid.UUID,
) (uuid.UUID, uuid.UUID, error) {
var channelID = uuid.NewV4()
var rootThreadID = uuid.NewV4()
var clientID = ClientIDFromContext(ctx)
return s.createChannel(
ctx,
clientID,
channelID,
rootThreadID,
"",
userIDs,
)
}
// private
func (s *Service) createChannel(
ctx context.Context,
clientID,
channelID,
rootThreadID uuid.UUID,
name string,
userIDs []uuid.UUID,
) (uuid.UUID, uuid.UUID, error) {
ctx, cancel := context.WithTimeout(ctx, time.Millisecond*TimeoutDefault)
done := make(chan error, 1)
defer func() {
cancel()
close(done)
}()
go func() {
var err error
defer func() {
done <- err
}()
tx, err := s.db.Begin()
if err != nil {
return
}
err = s.channels.CreateChannelWithName(
tx,
clientID,
channelID,
name,
rootThreadID,
userIDs,
)
if err != nil {
s.logger.Println("[ERR]", "create channel", err)
tx.Rollback()
return
}
err = s.threads.CreateThreadWithName(
tx,
clientID,
rootThreadID,
name,
channelID,
uuid.Nil,
uuid.Nil,
userIDs,
)
if err != nil {
s.logger.Println("[ERR]", "create root thread", err)
tx.Rollback()
return
}
err = tx.Commit()
return
}()
select {
case <-ctx.Done():
<-done // TODO: force done
return uuid.Nil, uuid.Nil, ctx.Err()
case err := <-done:
if err != nil {
s.logger.Println("[ERR]", "create channel, summary", err)
return uuid.Nil, uuid.Nil, err
}
return channelID, rootThreadID, err
}
}