#!/usr/bin/python
import sqlite3
def hash_file(path,hash_if_less,sample):
    return _imohash(path,hash_if_less,sample)

def __init_database__(con):
    cur = con.cursor()
    cur.execute('''CREATE TABLE IF NOT EXISTS `PATHS` (
        `PATH` TEXT,
        `HASH` BLOB,
        `ID` INTEGER)''')
    cur.execute('''CREATE TABLE IF NOT EXISTS `BACKUPS` (
        `ID` INTEGER,
        `HASH_THRESHOLD` INTEGER,
        `SAMPLE_SIZE` INTEGER)''')
    con.commit()
class fs:
    def __init__(self,top,db_path=None,hash_threshold=1024**2,sample_size=128*1024,id=None):
        self.top=top
        self.hash_threshold=hash_threshold
        self.sample_size=sample_size
        if db_path is None:
            self.db_path = 'fs.db'
        else:
            self.db_path=db_path
        self.con = sqlite3.connect(self.db_path)
        __init_database__(self.con)
        self.cur = self.con.cursor()
        if id is None:
            self.cur.execute('SELECT MAX(id) FROM backups')
            id=self.cur.fetchone()
            if id[0] is None:
                self.id = 0
            else:
                self.id = id[0]+1
        else:
            self.id = id

    def write_to_db(self):
        pass

    def morph(self,other):
        pass

    def backup(self,other):
        pass
if __name__ == "__main__":
    import os
    test = fs(os.getcwd())