fix: verify uniqueness of channel

controllers/authController.go

@@ -7,6 +7,7 @@ import (
 	"log"
 	"os"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/dgrijalva/jwt-go"
@@ -91,21 +92,33 @@ func AddUser(c *fiber.Ctx) error {
 	var data map[string]string
 
 	if err := c.BodyParser(&data); err != nil {
-		return fiber.ErrBadRequest
+		return c.JSON(fiber.Map{
+			"message": "Dados inválidos"})
+
 	}
 
 	if data["name"] == "" || data["email"] == "" || data["password"] == "" || data["channel"] == "" || data["usertype"] == "" || data["companyname"] == "" {
-		return fiber.ErrBadRequest
+		return c.JSON(fiber.Map{
+			"message": "Dados inválidos"})
 	}
 
 	passwd, _ := utils.HashPassword(data["password"])
 
-	user := models.User{
+	var user models.User
+
+	database.DB.Find(&user, "channel = ?", strings.ToLower(data["channel"]))
+
+	if user.Id == 0 {
+		return c.JSON(fiber.Map{
+			"message": "Canal já em uso"})
+	}
+
+	user = models.User{
 		Name:        data["name"],
 		Email:       data["email"],
 		CompanyName: data["companyname"],
 		Password:    passwd,
-		Channel:     data["channel"],
+		Channel:     strings.ToLower(data["channel"]),
 		UserType:    data["usertype"],
 		Blocked:     "N",
 		Cancelled:   "N",
@@ -115,7 +128,8 @@ func AddUser(c *fiber.Ctx) error {
 	database.DB.Create(&user)
 
 	if user.Id == 0 {
-		return fiber.ErrNotAcceptable
+		return c.JSON(fiber.Map{
+			"message": "Erro ao criar usuário"})
 	}
 
 	return c.JSON(user)

database/database.go

@@ -86,7 +86,7 @@ func ConnectDB() error {
 			Email:       "pcast@pcast.com.br",
 			CompanyName: "PCast",
 			Password:    passwd,
-			Channel:     "PCast",
+			Channel:     "pcast",
 			UserType:    "A",
 			Blocked:     "N",
 			Cancelled:   "N",