Bascule sur l'ORM GORM

- On n'utilise plus la pattern CQRS trop lourde pour le système
- Un système de models/repository "à la Symfony" est utilisé pour les
  requêtes

internal/model/user.go

@@ -0,0 +1,15 @@
+package model
+
+import "time"
+
+type User struct {
+	ID          *uint     `gorm:"primary_key"`
+	Name        *string   `json:"name"`
+	Email       string    `json:"email" gorm:"unique;not null"`
+	ConnectedAt time.Time `json:"connectedAt"`
+	CreatedAt   time.Time `json:"createdAt"`
+}
+
+type ProfileChanges struct {
+	Name *string `json:"name"`
+}

internal/model/user_repository.go

@@ -0,0 +1,57 @@
+package model
+
+import (
+	"context"
+	"time"
+
+	"forge.cadoles.com/Cadoles/daddy/internal/orm"
+	"github.com/jinzhu/gorm"
+	"github.com/pkg/errors"
+)
+
+type UserRepository struct {
+	db *gorm.DB
+}
+
+func (r *UserRepository) CreateOrConnectUser(ctx context.Context, email string) (*User, error) {
+	user := &User{
+		Email:     email,
+		CreatedAt: time.Now(),
+	}
+
+	err := orm.WithTx(ctx, r.db, func(ctx context.Context, tx *gorm.DB) error {
+		err := tx.Where("email = ?", email).FirstOrCreate(user).Error
+		if err != nil {
+			return errors.WithStack(err)
+		}
+
+		if err := tx.Model(user).UpdateColumn("connected_at", time.Now()).Error; err != nil {
+			return errors.WithStack(err)
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return nil, errors.Wrap(err, "could not create user")
+	}
+
+	return user, nil
+}
+
+func (r *UserRepository) FindUserByEmail(ctx context.Context, email string) (*User, error) {
+	user := &User{
+		Email: email,
+	}
+
+	err := r.db.First(user, "email = ?", email).Error
+	if err != nil {
+		return nil, errors.Wrap(err, "could not find user")
+	}
+
+	return user, nil
+}
+
+func NewUserRepository(db *gorm.DB) *UserRepository {
+	return &UserRepository{db}
+}