# This is a simple test plugin, to make sure everything is working

__author__="bjschuma"
__date__ ="$Dec 27, 2009 9:58:50 PM$"


global name, app, type, path, opt
name = "database"
app = "ocarina"
type = "core"
path = ""
opt = []


import settings
from bt.file import *

import sqlite3

#global conn, c
#conn = None
#c = None
global db
global conn
global vals
db = None
conn = None
vals = dict()


# Collect all information for what to insert
# Build into a large statement, then insert
# This will speed things up
# Reconnect to sqlite at every run, to avoid thread problems


def create():
	global conn
	conn.executescript("""
		CREATE TABLE files
		(
			path TEXT PRIMARY KEY
		);

		CREATE TABLE artist
		(
			id INTEGER PRIMARY KEY,
			name TEXT UNIQUE
		);

		CREATE TABLE album
		(
			id INTEGER PRIMARY KEY,
			name TEXT UNIQUE
		);

		CREATE TABLE library
		(
			id INTEGER PRIMARY KEY AUTOINCREMENT,
			name TEXT UNIQUE,
			path TEXT UNIQUE
		);


	""")

	global vals
	vals["files"] = "?"
	vals["artist"]= "?,?"
	vals["album"] = "?,?"
	vals["library"] = "?,?,?"



def open():
	global db, conn
	conn = sqlite3.connect(db)
	conn.text_factory = str


def close():
	global conn
	conn.commit()
	conn.close()
	conn = None


def commit():
	global conn
	if conn == None:
		return
	conn.commit()


def init():
	global db
	db = join(settings.get("ocarina"),"ocarina.db")
	dbExists = checkPath(db)
	open()
	if dbExists == False:
		create()
	close()


def execute(statement, values=None):
	global conn
	if conn == None:
		open()

	if values == None:
		return conn.execute(statement)
	else:
		return conn.execute(statement,values)


def insert(table, values):
	global vals
	execute('INSERT OR IGNORE INTO ' + table + ' VALUES(' + vals[table] + ')',values)


def count(table):
	return execute('select count(*) from ' + table).fetchone()[0]


def select(select,table,where=None):
	statement = 'select '+select+' from '+table
	if not (where==None):
		statement += ' where '+where
	#print statement
	try:
		result = execute(statement)
		return result
	except:
		print statement
		return None