<gh_stars>0
# DROP TABLES

songplay_table_drop = "DROP TABLE IF EXISTS songplays;"
user_table_drop = "DROP TABLE IF EXISTS users;"
song_table_drop = "DROP TABLE IF EXISTS songs;"
artist_table_drop = "DROP TABLE IF EXISTS artists;"
time_table_drop = "DROP TABLE IF EXISTS time;"

# CREATE TABLES

songplay_table_create = ("""
    CREATE TABLE IF NOT EXISTS songplays (
        songplay_id bigserial PRIMARY KEY,
        start_time timestamp NOT NULL,
        user_id integer NOT NULL,
        level text NOT NULL,
        song_id text,
        artist_id text,
        session_id integer NOT NULL,
        location text NOT NULL,
        user_agent text NOT NULL
    );
""")

user_table_create = ("""
    CREATE TABLE IF NOT EXISTS users (
        user_id integer PRIMARY KEY,
        first_name text NOT NULL,
        last_name text NOT NULL,
        gender char(1) NOT NULL,
        level text NOT NULL
    );
""")

song_table_create = ("""
    CREATE TABLE IF NOT EXISTS songs (
        song_id text PRIMARY KEY,
        title text NOT NULL,
        artist_id text NOT NULL,
        year integer NOT NULL,
        duration double precision NOT NULL
    );
""")

artist_table_create = ("""
    CREATE TABLE IF NOT EXISTS artists (
        artist_id text PRIMARY KEY,
        name text NOT NULL,
        location text NOT NULL,
        latitude double precision,
        longitude double precision
    );
""")

time_table_create = ("""
    CREATE TABLE IF NOT EXISTS time (
        start_time timestamp PRIMARY KEY,
        hour integer NOT NULL,
        day integer NOT NULL,
        week integer NOT NULL,
        month integer NOT NULL,
        year integer NOT NULL,
        weekday integer NOT NULL
    );
""")

# INSERT RECORDS

songplay_table_insert = ("""
    INSERT INTO songplays
        (start_time, user_id, level, song_id, artist_id, session_id, location, user_agent)
    VALUES(%s, %s, %s, %s, %s, %s, %s, %s);
""")

user_table_insert = ("""
    INSERT INTO users
        (user_id, first_name, last_name, gender, level)
    VALUES(%s, %s, %s, %s, %s)
    ON CONFLICT (user_id) DO
        UPDATE SET level = EXCLUDED.level;
""")

song_table_insert = ("""
    INSERT INTO songs
        (song_id, title, artist_id, year, duration)
    VALUES(%s, %s, %s, %s, %s)
    ON CONFLICT (song_id) DO
        NOTHING;
""")

artist_table_insert = ("""
    INSERT INTO artists
        (artist_id, name, location, latitude, longitude)
    VALUES(%s, %s, %s, %s, %s)
    ON CONFLICT (artist_id) DO
        NOTHING;
""")


time_table_insert = ("""
    INSERT INTO time
        (start_time, hour, day, week, month, year, weekday)
    VALUES(%s, %s, %s, %s, %s, %s, %s)
    ON CONFLICT (start_time) DO
        NOTHING;
""")

# FIND SONGS

song_select = ("""
    SELECT
        s.song_id,
        a.artist_id
    FROM
        songs s
    JOIN artists a ON s.artist_id = a.artist_id
    WHERE
        s.title = %s AND
        a.name = %s AND
        s.duration = %s;
""")

# QUERY LISTS

create_table_queries = [songplay_table_create, user_table_create, song_table_create,
                        artist_table_create, time_table_create]
drop_table_queries = [songplay_table_drop, user_table_drop, song_table_drop,
                      artist_table_drop, time_table_drop]
# DROP TABLES

songplay_table_drop = "DROP TABLE IF EXISTS songplays;"
user_table_drop = "DROP TABLE IF EXISTS users;"
song_table_drop = "DROP TABLE IF EXISTS songs;"
artist_table_drop = "DROP TABLE IF EXISTS artists;"
time_table_drop = "DROP TABLE IF EXISTS time;"

# CREATE TABLES

songplay_table_create = ("""
    CREATE TABLE IF NOT EXISTS songplays (
        songplay_id bigserial PRIMARY KEY,
        start_time timestamp NOT NULL,
        user_id integer NOT NULL,
        level text NOT NULL,
        song_id text,
        artist_id text,
        session_id integer NOT NULL,
        location text NOT NULL,
        user_agent text NOT NULL
    );
""")

user_table_create = ("""
    CREATE TABLE IF NOT EXISTS users (
        user_id integer PRIMARY KEY,
        first_name text NOT NULL,
        last_name text NOT NULL,
        gender char(1) NOT NULL,
        level text NOT NULL
    );
""")

song_table_create = ("""
    CREATE TABLE IF NOT EXISTS songs (
        song_id text PRIMARY KEY,
        title text NOT NULL,
        artist_id text NOT NULL,
        year integer NOT NULL,
        duration double precision NOT NULL
    );
""")

artist_table_create = ("""
    CREATE TABLE IF NOT EXISTS artists (
        artist_id text PRIMARY KEY,
        name text NOT NULL,
        location text NOT NULL,
        latitude double precision,
        longitude double precision
    );
""")

time_table_create = ("""
    CREATE TABLE IF NOT EXISTS time (
        start_time timestamp PRIMARY KEY,
        hour integer NOT NULL,
        day integer NOT NULL,
        week integer NOT NULL,
        month integer NOT NULL,
        year integer NOT NULL,
        weekday integer NOT NULL
    );
""")

# INSERT RECORDS

songplay_table_insert = ("""
    INSERT INTO songplays
        (start_time, user_id, level, song_id, artist_id, session_id, location, user_agent)
    VALUES(%s, %s, %s, %s, %s, %s, %s, %s);
""")

user_table_insert = ("""
    INSERT INTO users
        (user_id, first_name, last_name, gender, level)
    VALUES(%s, %s, %s, %s, %s)
    ON CONFLICT (user_id) DO
        UPDATE SET level = EXCLUDED.level;
""")

song_table_insert = ("""
    INSERT INTO songs
        (song_id, title, artist_id, year, duration)
    VALUES(%s, %s, %s, %s, %s)
    ON CONFLICT (song_id) DO
        NOTHING;
""")

artist_table_insert = ("""
    INSERT INTO artists
        (artist_id, name, location, latitude, longitude)
    VALUES(%s, %s, %s, %s, %s)
    ON CONFLICT (artist_id) DO
        NOTHING;
""")


time_table_insert = ("""
    INSERT INTO time
        (start_time, hour, day, week, month, year, weekday)
    VALUES(%s, %s, %s, %s, %s, %s, %s)
    ON CONFLICT (start_time) DO
        NOTHING;
""")

# FIND SONGS

song_select = ("""
    SELECT
        s.song_id,
        a.artist_id
    FROM
        songs s
    JOIN artists a ON s.artist_id = a.artist_id
    WHERE
        s.title = %s AND
        a.name = %s AND
        s.duration = %s;
""")

# QUERY LISTS

create_table_queries = [songplay_table_create, user_table_create, song_table_create,
                        artist_table_create, time_table_create]
drop_table_queries = [songplay_table_drop, user_table_drop, song_table_drop,
                      artist_table_drop, time_table_drop]
# DROP TABLES # CREATE TABLES CREATE TABLE IF NOT EXISTS songplays (         songplay_id bigserial PRIMARY KEY,         start_time timestamp NOT NULL,         user_id integer NOT NULL,         level text NOT NULL,         song_id text,         artist_id text,         session_id integer NOT NULL,         location text NOT NULL,         user_agent text NOT NULL     ); CREATE TABLE IF NOT EXISTS users (         user_id integer PRIMARY KEY,         first_name text NOT NULL,         last_name text NOT NULL,         gender char(1) NOT NULL,         level text NOT NULL     ); CREATE TABLE IF NOT EXISTS songs (         song_id text PRIMARY KEY,         title text NOT NULL,         artist_id text NOT NULL,         year integer NOT NULL,         duration double precision NOT NULL     ); CREATE TABLE IF NOT EXISTS artists (         artist_id text PRIMARY KEY,         name text NOT NULL,         location text NOT NULL,         latitude double precision,         longitude double precision     ); CREATE TABLE IF NOT EXISTS time (         start_time timestamp PRIMARY KEY,         hour integer NOT NULL,         day integer NOT NULL,         week integer NOT NULL,         month integer NOT NULL,         year integer NOT NULL,         weekday integer NOT NULL     ); # INSERT RECORDS INSERT INTO songplays         (start_time, user_id, level, song_id, artist_id, session_id, location, user_agent)     VALUES(%s, %s, %s, %s, %s, %s, %s, %s); INSERT INTO users         (user_id, first_name, last_name, gender, level)     VALUES(%s, %s, %s, %s, %s)     ON CONFLICT (user_id) DO         UPDATE SET level = EXCLUDED.level; INSERT INTO songs         (song_id, title, artist_id, year, duration)     VALUES(%s, %s, %s, %s, %s)     ON CONFLICT (song_id) DO         NOTHING; INSERT INTO artists         (artist_id, name, location, latitude, longitude)     VALUES(%s, %s, %s, %s, %s)     ON CONFLICT (artist_id) DO         NOTHING; INSERT INTO time         (start_time, hour, day, week, month, year, weekday)     VALUES(%s, %s, %s, %s, %s, %s, %s)     ON CONFLICT (start_time) DO         NOTHING; # FIND SONGS SELECT         s.song_id,         a.artist_id     FROM         songs s     JOIN artists a ON s.artist_id = a.artist_id     WHERE         s.title = %s AND         a.name = %s AND         s.duration = %s; # QUERY LISTS