Start on S3 side

go.mod

@@ -3,6 +3,7 @@ module segmento
 go 1.14
 
 require (
+	github.com/aws/aws-sdk-go v1.33.4
 	github.com/stretchr/testify v1.6.1
 	github.com/tcolgate/mp3 v0.0.0-20170426193717-e79c5a46d300
 )

go.sum

@@ -1,14 +1,26 @@
+github.com/aws/aws-sdk-go v1.33.4 h1:lhVZe2TkSjJz26jPBCBAvJvAy70Yxxlbm/Ciw1gmyRY=
+github.com/aws/aws-sdk-go v1.33.4/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
+github.com/jmespath/go-jmespath v0.3.0 h1:OS12ieG61fsCg5+qLJ+SsW9NicxNkg3b25OyT2yCeUc=
+github.com/jmespath/go-jmespath v0.3.0/go.mod h1:9QtRXoHjLGCJ5IBSaohpXITPlowMeeYCZ7fLUTSywik=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/tcolgate/mp3 v0.0.0-20170426193717-e79c5a46d300 h1:XQdibLKagjdevRB6vAjVY4qbSr8rQ610YzTkWcxzxSI=
 github.com/tcolgate/mp3 v0.0.0-20170426193717-e79c5a46d300/go.mod h1:FNa/dfN95vAYCNFrIKRrlRo+MBLbwmR9Asa5f2ljmBI=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -2,24 +2,14 @@ package main
 
 import (
 	"flag"
-	"fmt"
 	"log"
 	"net/http"
 	"os"
 	"segmento/pkg/media"
 	"segmento/pkg/playlist"
+	"segmento/pkg/s3"
 )
 
-type consumer struct{}
-
-func (c *consumer) PlaylistSegmentAdded(p playlist.Playlist, s *playlist.PlaylistSegment) {
-	fmt.Println("in PlaylistSegmentAdded")
-}
-
-func (c *consumer) PlaylistUpdated(p playlist.Playlist) {
-	fmt.Println("in PlaylistUpdated")
-}
-
 func main() {
 	// TODO accept some flags with:
 	// URL - source of stream
@@ -51,7 +41,8 @@ func main() {
 	segmenter := media.NewMP3Segmenter()
 	publisher := &media.FakePublisher{}
 	playlist := playlist.NewMediaPlaylist(resp.Body, segmenter, publisher)
-	playlist.AddConsumer(&consumer{})
+	playlist.AddConsumer(&s3.Consumer{})
+
 	if err = playlist.Run(); err != nil {
 		log.Fatal(err)
 	}

pkg/playlist/playlist.go

@@ -41,6 +41,9 @@ type MediaPlaylist struct {
 	consumers map[Consumer]bool
 }
 
+// TODO does it make sense to do 50% dependency injection and 50% consumers here?
+// Why not just pass everything through the consumer?
+// Or how about define these methods on the interface and force implementations to provide them?
 func NewMediaPlaylist(src io.Reader, segmenter media.Segmenter, publisher media.SegmentPublisher) *MediaPlaylist {
 	p := MediaPlaylist{
 		src:       src,

pkg/s3/s3.go

@@ -0,0 +1,37 @@
+package s3
+
+import (
+	"fmt"
+	"log"
+	"segmento/pkg/playlist"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/session"
+)
+
+const DefaultAwsRegion = "eu-west-1"
+
+func init() {
+	sess, err := session.NewSession(&aws.Config{Region: aws.String(DefaultAwsRegion)})
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+type Consumer struct {
+	S3Bucket     string
+	S3PathPrefix string
+}
+
+func NewConsumer(bucket string, pathPrefix string) *Consumer {
+	c := Consumer{bucket, pathPrefix}
+	return &c
+}
+
+func (c *Consumer) PlaylistUpdated(p playlist.Playlist) {
+	fmt.Println("s3: PlaylistUpdated")
+}
+
+func (c *Consumer) PlaylistSegmentAdded(p playlist.Playlist, s *playlist.PlaylistSegment) {
+	fmt.Println("s3: PlaylistSegmentAdded")
+}