feat: HTTP panel on :8000 with first admin setup

internal/setup/service.go

@@ -0,0 +1,63 @@
+package setup
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/panelhosting/panel/internal/auth"
+	"github.com/panelhosting/panel/internal/models"
+	"github.com/panelhosting/panel/internal/repository"
+)
+
+var ErrSetupCompleted = errors.New("setup already completed")
+
+type Service struct {
+	users *repository.UserRepository
+}
+
+func NewService(users *repository.UserRepository) *Service {
+	return &Service{users: users}
+}
+
+func (s *Service) Status(ctx context.Context) (bool, error) {
+	count, err := s.users.Count(ctx)
+	if err != nil {
+		return false, err
+	}
+	return count == 0, nil
+}
+
+type RegisterInput struct {
+	Email    string `json:"email"`
+	Username string `json:"username"`
+	Password string `json:"password"`
+}
+
+func (s *Service) RegisterFirstAdmin(ctx context.Context, in RegisterInput) (*models.User, error) {
+	required, err := s.Status(ctx)
+	if err != nil {
+		return nil, err
+	}
+	if !required {
+		return nil, ErrSetupCompleted
+	}
+
+	if err := auth.ValidateEmail(in.Email); err != nil {
+		return nil, err
+	}
+	if err := auth.ValidateUsername(in.Username); err != nil {
+		return nil, err
+	}
+
+	hash, err := auth.HashPassword(in.Password)
+	if err != nil {
+		return nil, err
+	}
+
+	user, err := s.users.Create(ctx, in.Email, in.Username, hash, models.RoleSuperAdmin, models.UserStatusActive)
+	if err != nil {
+		return nil, fmt.Errorf("register admin: %w", err)
+	}
+	return user, nil
+}