# 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 SERIAL,
start_time DATE,
user_id VARCHAR(255) NOT NULL,
level VARCHAR(16),
song_id VARCHAR(255),
artist_id VARCHAR(255),
session_id INTEGER,
location VARCHAR(255),
user_agent VARCHAR(255)
);
""")

user_table_create = ("""
CREATE TABLE IF NOT EXISTS users 
(
user_id VARCHAR(255) PRIMARY KEY,
first_name VARCHAR(255),
last_name VARCHAR(255),
gender CHAR,
level VARCHAR(16) NOT NULL
);
""")

song_table_create = ("""
CREATE TABLE IF NOT EXISTS songs 
(
song_id VARCHAR(255) PRIMARY KEY,
title VARCHAR(255) NOT NULL,
artist_id VARCHAR(255) NOT NULL,
year INT NULL,
duration FLOAT NOT NULL
);
""")

artist_table_create = ("""
CREATE TABLE IF NOT EXISTS artists 
(
artist_id VARCHAR(255) PRIMARY KEY, 
name VARCHAR(255) NOT NULL, 
location VARCHAR(255) NOT NULL, 
latitude real NULL, 
longitude real NULL
);
""")

time_table_create = ("""
CREATE TABLE IF NOT EXISTS time
(
start_time TIME,
hour INT NULL,
day INT NULL,
week INT NULL,
month INT NULL,
year INT NULL,
weekday INT 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 first_name = excluded.first_name,
        last_name = excluded.last_name,
        gender = excluded.gender,
        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);
""")

# FIND SONGS

song_select = ("""
SELECT songs.song_id, artists.artist_id FROM songs
LEFT JOIN artists 
ON songs.artist_id = artists.artist_id
WHERE songs.title = %s AND artists.name = %s AND songs.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]