#!/usr/bin/python3
import sqlite3
import logging

database = "bbbbs.sqlite"
logging.basicConfig(level=logging.DEBUG, encoding="utf-8") # set level to log.DEBUG when debugging
log = logging.getLogger("db")


try:
    sqliteConnection = sqlite3.connect(database)
    cursor = sqliteConnection.cursor()
    cursor.execute('select sqlite_version();')
    log.debug("Sqlite version is %s" % cursor.fetchall())
    log.info("connected to %s" % database)
except sqlite3.Error as error:
    log.critical('Error occured: ', error)

def create_transmissions_table():
    # timeslots is stored as a 10 bit number with each bit representing a specific timeslot.
    scheme = """
    CREATE TABLE IF NOT EXISTS transmissions (
    date TEXT NOT NULL,
    author TEXT NOT NULL,
    title TEXT NOT NULL,
    transmission_text TEXT NOT NULL,
    timeslots INT NOT NULL,
    transmission_order INT NOT NULL,
    play BOOLEAN NOT NULL
    );
    """
    if cursor.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='transmissions';").fetchall() == []:
        try:
            cursor.execute(scheme)
            log.info("Successfully created database transmissions")
        except sqlite3.Error as error:
            log.critical("Couldn't create transmissions table: ", error)
            exit(1)
    else:
        log.debug('DB transmissions exists, not creating.')

def get_transmissions(date=None, timeslot=None):
    return cursor.execute("SELECT * FROM transmissions").fetchall()

def create_transmission(date, author, title, transmission_text, timeslots, transmission_order, play=True):
    #(date, author, title, transmission_text, timeslots, transmission_order, play)
    command="""
    INSERT INTO transmissions VALUES(?, ?, ?, ?, %d, %d, %d);
    """%(timeslots, transmission_order, (1 if play else 0))
    try:
        cursor.execute(command, (date, author, title, transmission_text))
        sqliteConnection.commit()
        log.debug("Created a transmission with date %s, author %s, timeslots %s"%(date, author, bin(timeslots)))
    except sqlite3.Error as error:
        log.error("Couldn't create a transmission with date %s, author %s, timeslots %s"%(date, author, bin(timeslots)))
        log.error(error)


def delete_transmission():
    pass