add User(login) constructor, fetch db data inside

1 files changed, 39 insertions, 8 deletions

diff --git a/src/user.h b/src/user.h
index 6826ed4..b6c1633 100644
--- a/src/user.h
+++ b/src/user.h
@@ -14,22 +14,53 @@ public:
     /*!
      * \brief User - create user with given `login` and `password`. `salt` and
      * `passwordHash` will be generated and stored instead of real `password`.
-     * Will *not* be committed to db automatically.
+     * Will *not* be committed to db automatically. Should be used to create a
+     * new user
+     * \code
+     * User user{"admin", "123"};
+     * auto id = user.createInDb();
+     * if (id == rsshit::db::IdNotFound) // error
+     * ...
      * \param login - max len is 32
      * \param password - max len is 32
      */
     explicit User(const QString &login, const QString &password);
 
+    /*!
+     * \brief User - create user with given `login` and try to fetch data from db
+     * automatically. Should be used for existing users
+     * \code
+     * User user{"admin"};
+     * if (user.getDbId() == rsshit::db::IdNotFound) // user not found
+     * ...
+     * if (!user.verifyPassword("123)) // wrong password
+     * ...
+     */
+    explicit User(const QString &login);
+
 public:
     /*!
      * \brief getDbId - check if user with corresponding `link` exists in db
-     * and return db id if any
+     * and return db id if any (fills `id` var as well)
      * \return id on success, 0 otherwise
      */
     int getDbId();
 
     /*!
-     * \brief createInDb - create user in db
+     * \brief fetchFromDb - fetch db user record with corresponding `login`
+     * \return existing `id` on success, 0 otherwise
+     */
+    int fetchFromDb();
+
+    /*!
+     * \brief existsInDb - helper function, checks if `this` has valid `id`, or
+     *  db record with corresponding `login` exists (calls `getDbId` under the hood)
+     * \return true if exists, false otherwise
+     */
+    bool existsInDb();
+
+    /*!
+     * \brief createInDb - create user in db, fill `id`
      * \return new user id on success, 0 otherwise
      */
     int createInDb();
@@ -43,11 +74,11 @@ public:
 
     bool verifyPassword(const QString &password);
 
-public:
-    int id{0};
-    QString login;
-    QByteArray salt;
-    QByteArray passwordHash;
+private:
+    int m_id{0};
+    QString m_login;
+    QByteArray m_salt;
+    QByteArray m_passwordHash;
 
 private:
     QByteArray hashPassword(const QString &password);