Rework db schema

backend/internal/db/user.go

@@ -5,27 +5,65 @@ import (
 )
 
 func (db *DB) CreateUser(user *models.User) error {
-	_, err := db.Exec("INSERT INTO users (username, email, password_hash) VALUES (?, ?, ?)",
-		user.Username, user.Email, user.PasswordHash)
+	_, err := db.Exec(`
+		INSERT INTO users (email, display_name, password_hash)
+		VALUES (?, ?, ?)`,
+		user.Email, user.DisplayName, user.PasswordHash)
 	return err
 }
 
 func (db *DB) GetUserByID(id int) (*models.User, error) {
 	user := &models.User{}
-	err := db.QueryRow("SELECT id, username, email, created_at FROM users WHERE id = ?", id).
-		Scan(&user.ID, &user.Username, &user.Email, &user.CreatedAt)
+	err := db.QueryRow(`
+		SELECT id, email, display_name, created_at, last_workspace_id, last_opened_file_path
+		FROM users WHERE id = ?`, id).
+		Scan(&user.ID, &user.Email, &user.DisplayName, &user.CreatedAt,
+			&user.LastWorkspaceID, &user.LastOpenedFilePath)
 	if err != nil {
 		return nil, err
 	}
 	return user, nil
 }
 
-func (db *DB) GetUserByUsername(username string) (*models.User, error) {
+func (db *DB) GetUserByEmail(email string) (*models.User, error) {
 	user := &models.User{}
-	err := db.QueryRow("SELECT id, username, email, password_hash, created_at FROM users WHERE username = ?", username).
-		Scan(&user.ID, &user.Username, &user.Email, &user.PasswordHash, &user.CreatedAt)
+	err := db.QueryRow(`
+		SELECT id, email, display_name, password_hash, created_at, last_workspace_id, last_opened_file_path
+		FROM users WHERE email = ?`, email).
+		Scan(&user.ID, &user.Email, &user.DisplayName, &user.PasswordHash, &user.CreatedAt,
+			&user.LastWorkspaceID, &user.LastOpenedFilePath)
 	if err != nil {
 		return nil, err
 	}
 	return user, nil
-}
+}
+
+func (db *DB) UpdateUser(user *models.User) error {
+	_, err := db.Exec(`
+		UPDATE users
+		SET email = ?, display_name = ?, last_workspace_id = ?, last_opened_file_path = ?
+		WHERE id = ?`,
+		user.Email, user.DisplayName, user.LastWorkspaceID, user.LastOpenedFilePath, user.ID)
+	return err
+}
+
+func (db *DB) UpdateLastWorkspace(userID, workspaceID int) error {
+	_, err := db.Exec("UPDATE users SET last_workspace_id = ? WHERE id = ?", workspaceID, userID)
+	return err
+}
+
+func (db *DB) UpdateLastOpenedFile(userID int, filePath string) error {
+	_, err := db.Exec("UPDATE users SET last_opened_file_path = ? WHERE id = ?", filePath, userID)
+	return err
+}
+
+func (db *DB) DeleteUser(id int) error {
+	_, err := db.Exec("DELETE FROM users WHERE id = ?", id)
+	return err
+}
+
+func (db *DB) GetLastWorkspaceID(userID int) (int, error) {
+	var workspaceID int
+	err := db.QueryRow("SELECT last_workspace_id FROM users WHERE id = ?", userID).Scan(&workspaceID)
+	return workspaceID, err
+}