************
Assignment 1
************

*  **Worth**: 10%
*  **DUE**: March 4th, 2022 at 11:55pm; submitted on MOODLE.

.. warning::

    For this assignment, you may **not** work with anyone else. 
    
    You need to work independently.

How to submit your work
=======================

You need to submit your C++ (.h/.cpp) files directly on moodle.
The first two lines of the C++ file should be as follows:

.. code-block:: cpp

    // Student name:
    // Student number: 

Instructions
============

*  In this first assignment you implement a simple database of movies.
*  The database will allow the user to enter a movie name.
*  Your program should print the IMDB rating for the movie.
*  The program stop when the enter "quit".

Dataset
-------

The dataset is extracted from the official dataset of IMDB.

It is composed of two files:

*  :download:`titles.csv <../assignment/asn1/titles.csv>`:  A CSV file with the id of the movie and its title.
*  :download:`ratings.csv <../assignment/asn1/ratings.csv>`: A CSV file with the id of the movie and its rating.

You need to download the files.

.. important::

    Not all movie has a rating. You will need to handle this case.

Structure of your program
-------------------------

The program should contain the following files:

*  main.cpp 
*  MovieDB.h/.cpp : It's the main class of the program, it contains the two sub-databases
*  TitleDB.h/.cpp : The database that will contain only the id and the title of the movie.
*  RatingDB.h/.cpp : The database that will contain only the id and the rating of the movie.

main.cpp
********

*  This file should take two arguments from the console:

.. code-block::

    IMDB <titleDB_file_name> <ratingDB_file_name>

:code:`IMDB` is the name of the executable.

*  Then it should create the class :code:`MovieDB`.
*  Then it ask the user to enter a movie name.
*  If the movie exist it returns the rating and ask a new movie.
*  Otherwise, it print a message saying that this movie doesn't exist and ask a new movie.
*  Finally, the program ends when the user type "quit".

MovieDB
*******

*  The principal class of your program.
*  The constructor should take the three files in argument.
*  With the DB files it should create the two classes :code:`TitleDB` and :code:`RatingDB`.
*  It should have a method taking the movie name entered by the user and make the correct request to obtain the rating of the movie.

TitleDB
*******

*  This class must be Splay Tree.
*  The sorting must be on the **movie title**.
*  It must contain a find methods that will return the id of the movie.
*  The node contains the movie title and the id.
*  It should contain the methods of a Splay tree.

RatingDB
********

*  This class must be Splay Tree.
*  The sorting must be on the **movie ID**.
*  It must contain a find methods that will return the rating of the movie.
*  The node contains the movie title and the id.
*  It should contain the methods of a Splay tree.

.. UML
.. ***

.. A very simplified and incomplete UMDl diagram of the program.

.. .. figure:: ../assignment/asn1/asn1_uml.*
..     :align: center









Some marking details
====================

.. warning::

    Having the correct outputs doesn't mean that you will obtain a perfect mark.


The marking will depend on:

*  Correctness.
*  Comments
*  Variable names
*  Style
*  etc.


General FAQ:
============

* Does my text file have enough details?
	* Probably. The shorter the better.
* Do I have enough comments?
	* I don't know, maybe? If you're looking at code and have to ask if you should comment it... just comment it. That said, don't write me a book.
* Can I work with my friend?
	* No.
* If our code/functions are identical, you won't really call this cheating, would you?
    * Yes. 
* Moodle was totally broken, it's not my fault it's late.
	* Nice try.
* I accidentally submitted the wrong code. Here is the right code, but it's late. But you can see that I submitted the wrong code on time! You'll still accept it, right?
	* No.