Added chat microservice, removed air

chat-service/repository/chat.go

@@ -0,0 +1,9 @@
+package repository
+
+import (
+	"twitch-clone/chat-service/models"
+)
+
+type ChatRepository interface {
+	Store(*models.ChatMessage) error
+}

chat-service/repository/scylla/chat.go

@@ -0,0 +1,48 @@
+package scylla
+
+import (
+	"os"
+	"twitch-clone/chat-service/models"
+
+	"github.com/gocql/gocql"
+	"github.com/scylladb/gocqlx/v2"
+	"github.com/scylladb/gocqlx/v2/table"
+)
+
+var messageMetadata = table.Metadata{
+	Name:    "chat_service.messages",
+	Columns: []string{"message_id", "from_user_id", "from_user", "to_user_id", "to_user", "content", "created_at"},
+}
+
+var messageTable = table.New(messageMetadata)
+
+type ChatRepository struct {
+	cluster gocql.ClusterConfig
+}
+
+func (r *ChatRepository) Store(msg *models.ChatMessage) error {
+	session, err := gocqlx.WrapSession(r.cluster.CreateSession())
+	if err != nil {
+		return err
+	}
+	defer session.Close()
+
+	q := session.Query(messageTable.Insert()).BindStruct(msg)
+	if err := q.ExecRelease(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func NewChatRepository() *ChatRepository {
+	cluster := gocql.NewCluster(os.Getenv("CHAT_SCYLLA_HOSTS"))
+
+	session, _ := gocqlx.WrapSession(cluster.CreateSession())
+	Seed(session)
+	session.Close()
+
+	return &ChatRepository{
+		cluster: *cluster,
+	}
+}

chat-service/repository/scylla/seed.go

@@ -0,0 +1,30 @@
+package scylla
+
+import "github.com/scylladb/gocqlx/v2"
+
+func Seed(session gocqlx.Session) error {
+	err := session.ExecStmt(`
+		CREATE KEYSPACE IF NOT EXISTS chat_service 
+		WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1}`)
+	if err != nil {
+		return err
+	}
+
+	err = session.ExecStmt(`
+		CREATE TABLE IF NOT EXISTS chat_service.messages (
+			message_id bigint,
+			from_user_id bigint,
+			from_user text,
+			to_user_id bigint,
+			to_user text,
+			content text,
+			created_at timestamp,
+			PRIMARY KEY (to_user_id, message_id)
+		)`)
+
+	if err != nil {
+		return err
+	}
+
+	return nil
+}