Initial commit

server/database/database.go

@@ -0,0 +1,82 @@
+package database
+
+import (
+	"fmt"
+
+	"git.phc.dm.unipi.it/phc/website/libs/db"
+	"git.phc.dm.unipi.it/phc/website/libs/sl"
+
+	"git.phc.dm.unipi.it/phc/website/server/model"
+)
+
+var Slot = sl.NewSlot[Database]()
+
+// Database is the main database service interface
+type Database interface {
+	// User
+
+	CreateUser(user model.User) error
+	ReadUser(id db.Ref[model.User]) (model.User, error)
+	ReadUsers() ([]model.User, error)
+	UpdateUser(user model.User) error
+	DeleteUser(id db.Ref[model.User]) error
+
+	// Accounts
+
+	CreateAccount(account model.Account) (db.Ref[model.Account], error)
+	ReadAccount(id db.Ref[model.Account]) (model.Account, error)
+	UpdateAccount(user model.Account) error
+	DeleteAccount(id db.Ref[model.Account]) error
+
+	// Users & Accounts
+
+	ReadUserAccounts(user db.Ref[model.User]) ([]model.Account, error)
+}
+
+// Memory is an in-memory implementation of [Database] that can be used for testing
+type Memory struct {
+	Database // TODO: Per ora almeno così facciamo compilare il codice
+
+	Users []model.User
+}
+
+func (m *Memory) CreateUser(user model.User) error {
+	m.Users = append(m.Users, user)
+	return nil
+}
+
+func (m *Memory) ReadUser(id db.Ref[model.User]) (model.User, error) {
+	for _, u := range m.Users {
+		if u.Id == id {
+			return u, nil
+		}
+	}
+
+	return model.User{}, fmt.Errorf(`no user with id "%s"`, id)
+}
+
+func (m *Memory) ReadUsers() ([]model.User, error) {
+	return m.Users, nil
+}
+
+func (m *Memory) UpdateUser(user model.User) error {
+	for i, u := range m.Users {
+		if u.Id == user.Id {
+			m.Users[i] = user
+			return nil
+		}
+	}
+
+	return fmt.Errorf(`no user with id "%s"`, user.Id)
+}
+
+func (m *Memory) DeleteUser(id db.Ref[model.User]) error {
+	for i, u := range m.Users {
+		if u.Id == id {
+			m.Users = append(m.Users[:i], m.Users[i+1:]...)
+			return nil
+		}
+	}
+
+	return fmt.Errorf(`no user with id "%s"`, id)
+}

server/database/tables/tables.go

@@ -0,0 +1,10 @@
+package tables
+
+import (
+	"git.phc.dm.unipi.it/phc/website/libs/db"
+
+	"git.phc.dm.unipi.it/phc/website/server/model"
+)
+
+var Users = db.AutoTable[model.User]("users")
+var Accounts = db.AutoTable[model.Account]("accounts")