move queries to db folder, change database to better accommodate musicbrainz api data

db/db.sql

@@ -8,29 +8,43 @@ CREATE TABLE IF NOT EXISTS users (
 
 CREATE TABLE IF NOT EXISTS albums (
     id UUID PRIMARY KEY,
+    musicbrainz_id UUID UNIQUE,
     name VARCHAR(255) NOT NULL,
-    artist VARCHAR(255) NOT NULL,
+    extra_info VARCHAR(255),
+    artist_id VARCHAR(255) NOT NULL,
     release_date DATE,
     album_art_url VARCHAR(255)
+    FOREIGN KEY (artist_id) REFERENCES artists(id) ON DELETE CASCADE
 );
 
 CREATE TABLE IF NOT EXISTS artists (
     id UUID PRIMARY KEY,
+    musicbrainz_id UUID UNIQUE,
     name VARCHAR(255) NOT NULL,
-    genre VARCHAR(255),
-    bio TEXT,
-    artist_image_url VARCHAR(255)
+
 );
 
 CREATE TABLE IF NOT EXISTS user_albums (
-    user_id UUID,
+    user_id UUID PRIMARY KEY,
     album_id UUID,
     date_added TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
     album_owned BOOLEAN NOT NULL DEFAULT FALSE,
     album_want BOOLEAN NOT NULL DEFAULT FALSE,
+    album_condition VARCHAR(50) CHECK (album_condition IN ('Mint', 'Near Mint', 'Very Good Plus', 'Very Good', 'Good Plus', 'Good', 'Fair', 'Poor')),
     is_vinyl BOOLEAN NOT NULL DEFAULT FALSE,
     is_cd BOOLEAN NOT NULL DEFAULT FALSE,
-    PRIMARY KEY (user_id, album_id),
     FOREIGN KEY (user_id) REFERENCES Users(id) ON DELETE CASCADE,
     FOREIGN KEY (album_id) REFERENCES Albums(id) ON DELETE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS tags (
+    id UUID PRIMARY KEY,
+    name VARCHAR(255) NOT NULL UNIQUE
+);
+
+CREATE TABLE IF NOT EXISTS artist_tags (
+    artist_id UUID PRIMARY KEY,
+    tag_id UUID,
+    FOREIGN KEY (artist_id) REFERENCES Artists(id) ON DELETE CASCADE,
+    FOREIGN KEY (tag_id) REFERENCES Tags(id) ON DELETE CASCADE
 );