Initialize CMS application scaffold

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

internal/persistence/mapping.go

@@ -0,0 +1,19 @@
+package persistence
+
+import "github.com/example/cms/internal/domain"
+
+func UserToDomain(m UserModel) domain.User {
+	return domain.User{ID: m.ID, Email: m.Email, Name: m.Name, Provider: m.Provider, ProviderSubject: m.ProviderSubject, CreatedAt: m.CreatedAt}
+}
+func UserFromDomain(d domain.User) UserModel {
+	return UserModel{ID: d.ID, Email: d.Email, Name: d.Name, Provider: d.Provider, ProviderSubject: d.ProviderSubject, CreatedAt: d.CreatedAt}
+}
+func AdminToDomain(m AdminModel) domain.Admin {
+	return domain.Admin{ID: m.ID, Email: m.Email, Name: m.Name, CreatedAt: m.CreatedAt}
+}
+func SessionToDomain(m SessionModel) domain.Session {
+	return domain.Session{ID: m.ID, Token: m.Token, UserID: m.UserID, AdminID: m.AdminID, ExpiresAt: m.ExpiresAt, CreatedAt: m.CreatedAt}
+}
+func SessionFromDomain(d domain.Session) SessionModel {
+	return SessionModel{ID: d.ID, Token: d.Token, UserID: d.UserID, AdminID: d.AdminID, ExpiresAt: d.ExpiresAt, CreatedAt: d.CreatedAt}
+}

internal/persistence/mapping_test.go

@@ -0,0 +1,14 @@
+package persistence
+
+import (
+	"github.com/example/cms/internal/domain"
+	"testing"
+	"time"
+)
+
+func TestUserMappingRoundTrip(t *testing.T) {
+	d := domain.User{ID: 2, Email: "a@b", Name: "A", Provider: "google", ProviderSubject: "s", CreatedAt: time.Now()}
+	if got := UserToDomain(UserFromDomain(d)); got.Email != d.Email || got.ProviderSubject != d.ProviderSubject {
+		t.Fatalf("round trip mismatch: %+v", got)
+	}
+}

internal/persistence/models.go

@@ -0,0 +1,26 @@
+package persistence
+
+import "time"
+
+type UserModel struct {
+	ID              uint   `gorm:"primaryKey"`
+	Email           string `gorm:"uniqueIndex;not null"`
+	Name            string
+	Provider        string `gorm:"not null"`
+	ProviderSubject string `gorm:"uniqueIndex;not null"`
+	CreatedAt       time.Time
+}
+type AdminModel struct {
+	ID        uint   `gorm:"primaryKey"`
+	Email     string `gorm:"uniqueIndex;not null"`
+	Name      string
+	CreatedAt time.Time
+}
+type SessionModel struct {
+	ID        uint   `gorm:"primaryKey"`
+	Token     string `gorm:"uniqueIndex;not null"`
+	UserID    *uint
+	AdminID   *uint
+	ExpiresAt time.Time
+	CreatedAt time.Time
+}