# DROP TABLES

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"
songplay_table_drop = "DROP TABLE IF EXISTS songplays"

# CREATE TABLES

user_table_create = ("""
CREATE TABLE IF NOT EXISTS users
(
    user_id int PRIMARY KEY, 
    first_name varchar,
    last_name varchar, 
    gender varchar, 
    level varchar
)
""")

song_table_create = ("""
CREATE TABLE IF NOT EXISTS songs
(
        song_id text PRIMARY KEY, 
        title text , 
        artist_id text , 
        year int, 
        duration float 
)
""")

artist_table_create = ("""
CREATE TABLE IF NOT EXISTS artists
(
       artist_id text PRIMARY KEY, 
       name varchar, 
       location varchar, 
       latitude float, 
       longitude float
)
""")

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

songplay_table_create = ("""
CREATE TABLE IF NOT EXISTS songplays
(
        songplay_id SERIAL PRIMARY KEY, 
        start_time TIMESTAMP REFERENCES time(start_time), 
        user_id int REFERENCES users(user_id), 
        level text, 
        song_id text REFERENCES songs(song_id), 
        artist_id text REFERENCES artists(artist_id), 
        session_id int, 
        location text, 
        user_agent text
)
""")

# 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)
""")

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 
        song_id, 
        a.artist_id 
    FROM 
        songs as s 
    JOIN 
        artists as 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 = [user_table_create, song_table_create, artist_table_create, time_table_create, songplay_table_create]
drop_table_queries = [user_table_drop, song_table_drop, artist_table_drop, time_table_drop, songplay_table_drop]