= UseCase003 - Browse releases

**Initiating actors:** 

* Unregistered Guest

* Logged-Out User

* Logged-In Consumer

* Logged-In Admin

{{{#!div style="text-align: justify; width: 100%;"
The goal of this use case is to allow any visitor or authenticated user to explore the store's catalog. The system provides a comprehensive view of available music titles, artists, and specific release details, serving as the primary way for users to discover physical media before making a purchase.
}}}

== Scenario

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1. User navigates to the store's catalog or search page to view available music.

2. System retrieves the list of Releases from the database, including metadata such as title, genre, and record_label.

{{{#!div style="margin-left: 20px;"
{{{
SELECT release_id, title, genre, record_label, release_date, cover_photo 
FROM Release;
}}}
}}}

3. System matches each Release with its corresponding Artist to display the artist_name.

{{{#!div style="margin-left: 20px;"
{{{
SELECT r.title, a.artist_name 
FROM Release r
JOIN Artist a ON r.artist_id = a.artist_id;
}}}
}}}

4. System identifies the specific physical Product/s available for each release (such as Vinyl, CD, or Cassette) along with their current price and stock levels.

{{{#!div style="margin-left: 20px;"
{{{
SELECT release_id, format, price, stock 
FROM Product 
WHERE release_id = @current_release_id;
}}}
}}}

5. System displays the results to the user, formatted by the release type (Album or Single) and featuring the cover_photo.

{{{#!div style="margin-left: 20px;"
{{{
SELECT release_id, 'Album' AS type FROM Album
UNION
SELECT release_id, 'Single' AS type FROM Single;
}}}
}}}

}}}