CS $162$ Assignment #$2$ The Tune Finder

$$ Practice good software engineering design principles:

o Design your solution before writing the program

o Develop test cases before writing the program

$$ Practice pointers, arrays, dynamic memory usage, and structs

$$ Use file I$/$O to read from and write to files

$$ Practice file separation and create Makefile

$$ Use functions to modularize code to increase readability and reduce repeated code

Problem Statement:

The Melody Management Corporation $($MMC$)$ has recently added a lot of new songs and artists to their

catalog. We have witnessed some artists showcasing exceptional skills in the studio. However, it has

become progressively challenging for the music enthusiasts to locate specific songs or artists they wish

to explore.

In order to alleviate these issues, the corporation has appointed you to develop a music catalog program

that will streamline access control and simplify the process of discovering new tunes. To simplify your

task, the management team has provided you with the songs' profile information. These come in the form

of a playlist file: songs$\_$playlist.txt$.($NOTE: The filename provided from the user inputs should

not be hardcoded in your program!$)$

The songs$\_$playlist.txt file contains a list of MMC$\text{'}$s songs and their artists. This file will give you

the song and artist information that your program will organize and display.

Get the skeleton coded

$2$

Requirements:

$1.$ User inputs:

When starting the program, the user will be prompted for two inputs: the first input will be the name

of the playlist file that contains the information about playlists and songs. If the user does not

provide the name of an existing playlist file, the program should print out an error message and

quit. The second input will be the user$$s age. The age must be a positive integer. Re$-$prompt the

user until a valid input is given.

$2.$ Searching and Printing:

Once the user provides the correct playlist file and their age, they should be prompted with a list of

different ways to display the song and artist information. After the user has chosen an option, they

should be asked if they want the information printed on the screen or written to a file, except for

$$Display all songs$$ option. If they choose to write to a file, they should be prompted for a file name. If

the file name already exists, the information should be appended to the existing file. If the file name

does not exist, a new file should be created with the provided name, and the information$/$result

should be written to this new file.

$3.$ Available Options:

o Display all Songs:

If the user picks this option, print all song and artist information from the input file on the screen.

Additionally, an $$age check$$ is required before printing. Specifically, if the user's age is $19$ or

below $($inclusive$),$ details of explicit songs $($those with an $"$E$"$ restriction$)$ should be hidden. There

is no requirement to include a "write$-$to$-$file" option in this scenario.

o Play$/$Search for a Song:

If the user picks this option, the user will then be prompted for a valid song name. If found, the

song will be played. When the song is playing, you should print $($or write to file$)$ the entire

information of the song including name, artist, genre, length, and restriction level, in a readable

format. No $$age check$$ is needed for this option.

o Search Songs by Genre:

If the user picks this option, the user will then be prompted for a valid genre. The songs $($of all the

playlists$)$ that have the typed genre will be displayed.

Possible genres are Alternative, Pop, Country, Rock, R&B$,$ Jazz, Rap, and Others.

Once a song is found, you should print $($or write to file$)$ the song$$s entire information in a readable

format. No $$age check$$ is needed for this option.

o Length of all playlists:

If the user picks this option, the length of each playlist will be calculated and displayed. The

length of a playlist is the sum of the length of all its songs. When displaying a list, you should print

$($or write to file$)$ with the following format. No $$age check$$ is needed for this option.

$[$Playlist name$]$: $[$Total Length$]$

o Quit:

The program will exit.

$4.$ Your program should continue running until the user chooses to quit.

$3$

Required Structs:

The following structs are required in your program. They will help organize the information that will be

read in $($or derived$)$ from the files. You cannot modify, add, or remove members of the struct.

However, you are welcome to modify the name of the provided member variables if needed.