# Path: utils/database.py
# class Database:
#     """
#     This class handles :
#     - Provides a link and a cursor to the database as class attributes
#     Usage :
#     - Database.on()
#     - Database.CURSOR.execute(query, params)
#     - ... etc
#     - Database.off()
#     Available class attributes :
#     - LINK
#     - CURSOR
#     - FILE (path to the database file)
#     """
#     DATABASE_PRODUCTION = 'database.db'
#     """ Normal database filename """
#     DATABASE_TEST = 'database_test.db'
#     """ Test database filename : this database is temporary """
#     TEST_MODE = False
#     """ Does it need to use the test database ? """
# 
#     @classmethod
#     def on(cls):
#         """
#         Connect to the database
#         :rtype: bool
#         """
#         # Don't reconnect if already connected
#         if cls.is_ready():
#             return False
# 
#         # Filename
#         cls.FILE = cls.DATABASE_PRODUCTION
# 
#         if cls.TEST_MODE:
#             cls.FILE = cls.DATABASE_TEST
# 
#         # Connect
#         cls.LINK = sqlite3.connect(cls.FILE)
#         cls.LINK.row_factory = sqlite3.Row
#         cls.CURSOR = cls.LINK.cursor()
# 
#         return True
# 
#     @classmethod
#     def off(cls):
#         """
#         Ends connection with the database.
#         :rtype: bool
#         """
#         if cls.LINK:
#             cls.LINK.close()
#         cls.LINK = None
#         cls.CURSOR = None
#         return True
# 
#     @classmethod
#     def is_ready(cls):
#         """
#         Is the connection open ?
#         :rtype: bool
#         """
#         return hasattr(cls, 'LINK') and cls.LINK != None


from threading import Thread, RLock
from utils import Database
import requests
import models
    - thread = FindProduct(barcode)
    - thread.start()
    Note :
    - This class creates its own thread
    """
    LOCK = RLock()
    """ Thread lock """

    def __init__(self, barcode):
        """
        Inits the thread
        :param barcode: Barcode to search
        :param is_test: Is it a test ?
        :type barcode: str
        :rtype: FindProduct
        """
        Thread.__init__(self)
        self.barcode = barcode
        self.name = ''
        self.pic = False
        self.quantity = 1

    def run(self):
        """
        Fetch, gathers, insert product infos and adds it to the grocery list.
        Threaded
        :rtype: bool
        """
        with FindProduct.LOCK:
            # Database connection

# Path: utils/database.py
# class Database:
#     """
#     This class handles :
#     - Provides a link and a cursor to the database as class attributes
#     Usage :
#     - Database.on()
#     - Database.CURSOR.execute(query, params)
#     - ... etc
#     - Database.off()
#     Available class attributes :
#     - LINK
#     - CURSOR
#     - FILE (path to the database file)
#     """
#     DATABASE_PRODUCTION = 'database.db'
#     """ Normal database filename """
#     DATABASE_TEST = 'database_test.db'
#     """ Test database filename : this database is temporary """
#     TEST_MODE = False
#     """ Does it need to use the test database ? """
# 
#     @classmethod
#     def on(cls):
#         """
#         Connect to the database
#         :rtype: bool
#         """
#         # Don't reconnect if already connected
#         if cls.is_ready():
#             return False
# 
#         # Filename
#         cls.FILE = cls.DATABASE_PRODUCTION
# 
#         if cls.TEST_MODE:
#             cls.FILE = cls.DATABASE_TEST
# 
#         # Connect
#         cls.LINK = sqlite3.connect(cls.FILE)
#         cls.LINK.row_factory = sqlite3.Row
#         cls.CURSOR = cls.LINK.cursor()
# 
#         return True
# 
#     @classmethod
#     def off(cls):
#         """
#         Ends connection with the database.
#         :rtype: bool
#         """
#         if cls.LINK:
#             cls.LINK.close()
#         cls.LINK = None
#         cls.CURSOR = None
#         return True
# 
#     @classmethod
#     def is_ready(cls):
#         """
#         Is the connection open ?
#         :rtype: bool
#         """
#         return hasattr(cls, 'LINK') and cls.LINK != None


# Path: utils/findproduct.py
from threading import Thread, RLock
from utils import Database
import requests
import models

    - thread = FindProduct(barcode)
    - thread.start()
    Note :
    - This class creates its own thread
    """
    LOCK = RLock()
    """ Thread lock """

    def __init__(self, barcode):
        """
        Inits the thread
        :param barcode: Barcode to search
        :param is_test: Is it a test ?
        :type barcode: str
        :rtype: FindProduct
        """
        Thread.__init__(self)
        self.barcode = barcode
        self.name = ''
        self.pic = False
        self.quantity = 1

    def run(self):
        """
        Fetch, gathers, insert product infos and adds it to the grocery list.
        Threaded
        :rtype: bool
        """
        with FindProduct.LOCK:
            # Database connection

            Database.on()