feat: first init

internal/repositories/messaging.go

@@ -0,0 +1,34 @@
+package repositories
+
+import (
+	"chat/internal/models"
+	"fmt"
+	"time"
+)
+
+func SendChatMessage(msg string, user *models.User, channel *models.Channel) error {
+	// Handle empty message
+	if len(msg) < 1 {
+		return fmt.Errorf("message cannot be empty")
+	}
+
+	// Handle long message
+	if len(msg) > 500 {
+		return fmt.Errorf("message too long")
+	}
+
+	// Check if user is banned
+	banned := user.IsBanned
+	if banned {
+		return fmt.Errorf("user: %s, is banned", user.ID)
+	}
+
+	// Send message to channel
+	channel.Send(models.Message{
+		Content:   msg,
+		Sender:    user,
+		Timestamp: time.Now(),
+	})
+
+	return nil
+}