===============================================================================
=                                                                             =
=                                 Ocarina 6.0                                 =
=                                                                             =
===============================================================================

My main goal for Ocarina 6.x is to stop writing my own solutions to problems
that have already been solved.  For example, this means using SQL to store
a library rather than developing my own file format.  This should help with
future maintenance because I'll have less code to navigate.

SQLite:
	I plan on using SQLite for data storage as much as possible.  I had
	been using my own custom file formats for storing preferences or
	libraries, but this is turning into a hassle as I have more code that
	needs to be maintained.  Try to use an SQLite prepared statement
	whenever possible.

		#include <sqlite3.h>

		$ pkg-config --cflags --libs sqlite3

Files:
	$HOME/.ocarina{-debug}/ocarina.db

Database: (ocarina.db)
	Paths -
		create table if not exists paths(
			id INTEGER PRIMARY KEY AUTOINCREMENT,
			filepath TEXT UNIQUE, /* root path of library */
			enabled INTEGER, /* 0 = false, 1 = true */
		);

	Artist -
		create table if not exists artists(
			id INTEGER PRIMARY KEY AUTOINCREMENT,
			name TEXT UNIQUE
		);

	Album -
		create table if not exists albums(
			id INTEGER PRIMARY KEY AUTOINCREMENT,
			name TEXT UNIQUE,
			year SHORT INTEGER,
		);

	Tracks -
		create table if not exists tracks(
			id INTEGER PRIMARY KEY AUTOINCREMENT,
			FOREIGN KEY(path_id) REFERENCES paths(id),
			FOREIGN KEY(artist_id) REFERENCES artists(id),
			FOREIGN KEY(album_id) REFERENCES albums(id),
			filepath TEXT UNIQUE, /* full path - libary root */
			title TEXT,
			comment TEXT,
			genre TEXT,
			lenstr TEXT,
			track UNSIGNED INT,
			count UNSIGNED INT DEFAULT 0,
			last_day UNSIGNED INT DEFAULT 0,
			last_month UNSIGNED INT DEFAULT 0,
			last_year UNSIGNED INT DEFAULT 0,
			length INT,
			bitrate INT,
			sample INT,
			channels INT,
			banned INT, /* 0 = false, 1 = true */
		);

	Playlist -
		create table if not exists playlists(
			id INTEGER PRIMARY KEY AUTOINCREMENT,
			flags UNSIGNED INTEGER
		)

	Playlist #N -
		create table if not exists playlist{0-9}(
			FOREIGN KEY(track) REFERENCES tracks(id),
		);

	User settings - 
		create table if not exists config(
			name PRIMARY KEY,
			value INT,
		);

Archlinux packages:
	extra/sqlite