chore(auth): add service structs and test error handling

db/auth.go

@@ -0,0 +1,29 @@
+package db
+
+import (
+	"database/sql"
+	"errors"
+	"strings"
+
+	"github.com/google/uuid"
+)
+
+type AuthDb interface {
+	InsertUser(userIs uuid.UUID, email string, password string) error
+}
+type AuthDbSqlite struct {
+	db *sql.DB
+}
+
+func (a *AuthDbSqlite) InsertUser(userId uuid.UUID, email string, passwordHash []byte, salt []byte) error {
+
+	_, err := a.db.Exec("INSERT INTO user (user_uuid, email, email_verified, is_admin, password, salt, created_at) VALUES (?, ?, FALSE, FALSE, ?, ?, datetime())", userId, email, passwordHash, salt)
+	if err != nil {
+		if strings.Contains(err.Error(), "email") {
+			return errors.New("Bad Request")
+		}
+
+		utils.LogError("Could not insert user", err)
+		return ErrInternalServer
+	}
+}