# TODO:
# - check if everything is filled in (computers, params, preparation)
# - improve scoring
# - test
# - switch to a real SSH/SFTP client to properly handle filenames

instructions = {
    'si':u"""
Ustvari dva navidezna računalnika - simpleArbiter in studentGUI. 

Poskrbi, da bosta oba na istem omrežju in da bo imel studentGUI naslov {student_IP}. Obenem mora biti
simpleArbiter povezan na Internet. Računajte, da se na studentGUI ob zagonu zažene program {net_prog_name},
ki vam spreminja nastavitve mrežne kartice.

V domačem imeniku uporabnika test obstaja program {P_c} v programskem jeziku C. Prevedite ga v program z imenom {P_executable}.

Napišite skripto ali program {P_script} v domačem imeniku uporabnika test, ki:
- požene {P_c} z argumentom {arg_c} in mu na standardni vhod pripelje vrednost spremenljivke {env_c}
- vse, kar {P_c} izpiše na stderr, spravi v datoteko {out_stderr_c}.
- vse vrstice, ki jih {P_c} izpiše na stdout in vsebujejo zaporedje znakov "ma", zapiši v {out_stdout_c}.

Nekje v domačem imeniku uporabnika test se skriva datoteka "najdime.txt". V njej nadomestite vse pojavitve
niza "mami" z "mati". 

Lastnik vseh ustvarjenih datotek mora biti uporabnik test. Gesla uporabnika test
ne smete spreminjati.

""",
    'en': u'''
''',
}

computers = {
    'SimpleArbiter': {
        'disks': [
            {
                'name': 'simpleArbiter',
            },
        ],
        'network_interfaces': [
            {'network': 'net1'},
            {'network': 'net2'},
        ],
        'flavor': 'm1.tiny',
        'config_drive': True,
    }
    'SimpleStudent': {
        'disks': [
            {'name': 'student-mock_entrance'}
        ]
        'flavor': 'm1.tiny',
        'network_interfaces': [{'network': 'net1'}],
        'config_drive': True,
    }
}

networks = {
    'net1': {
        'public': True,
    },
    'net2': {
        'public': False,
    },
}

params_meta = {
    'student_IP': {
        'descriptions': {
            'si': 'IP naslov SimpleStudent',
            'en': 'IP address of SimpleStudent',
        },
        'w': False,
        'public': True,
        'type': 'IP',
        'generated': True,
    },
    'net_prog_name': {
        'descriptions': {
            'si': 'Ime programa, ki ponastalvlja naslov',
            'en': 'The name of the program resetting the network'
        }
        'w': False,
        'public': True,
        'type': 'filename',
        'generated': True,
    },
    'P_c': {
        'descriptions': {
            'si': 'Datoteka s programom v C',
            'en': 'Filename of the program in C',
        },
        'w': False,
        'public': True,
        'type': 'filename',
        'generated': False,
    },
    'P_executable': {
        'description': {
            'si': 'Ime prevedenega programa v C',
            'en': 'Filename of the compiled C program'
        }
    },
    'arg_c': {
        'descriptions': {
            'si': 'Vrednost argumenta',
            'en': 'Argument value',
        },
        'w': False,
        'public': True,
        'type': 'short_text',
        'generated': False,
    },
    'env_c': {
        'descriptions': {
            'si': 'Ime okoljske spremenljivke',
            'en': 'The name of the environment environment',
        },
        'w': False,
        'public': True,
        'type': 'short_text',
        'generated': False,
    },
    'out_stderr_c': {
        'descriptions': {
            'si': 'Datoteka z napakami',
            'en': 'File to store errors',
        },
        'w': True,
        'public': True,
        'type': 'filename',
        'generated': False,
    },
    'P_script': {
        'descriptions': {
            'si': 'Ime skripte',
            'en': 'Filename of the script',
        },
        'w': False,
        'public': True,
        'type': 'filename',
        'generated': True,
    },
    'out_stdout_c': {
        'descriptions': {
            'si': 'Datoteka z izhodom',
            'en': 'File to store the output',
        },
        'w': False,
        'public': True,
        'type': 'filename',
        'generated': False,
    },
    'mati_path': {
        'descriptions': {
            'si': 'Lokacija najdime.txt',
            'en': 'Location of najdime.txt',
        },
        'w': False,
        'public': False,
        'type': 'dirname',
        'generated': True,
    },
}

def task(student_IP, net_prog_name, 
        P_c, P_executable, arg_c, env_c, out_stderr_c, out_stdout_c, P_script
        mati_path):
    import pxssh

    # ideally, this would be done using a SFTP client instead of pxssh
    target = pxssh.pxssh()
    target.login(student_IP, 'test', 'test')
    results = {
        
        'script_run': target.run('').split('\n'), #
        'contents': target.run("cat *"), #
        ''
    }
    target.logout()
    return results

def gen_params(user_id, params_meta):
    pass

def task_check(results, params):
    import os

    score = 0
    hints = []
    matched = 0
    files = os.listdir(params['folder'])
    for fn in files:
        if fn in results['files']:
            matched += 1
    if matched > 0:
        score = 1
    else:
        hints += ["no files"]
    if matched > len(files)/2:
        score += 2
    else:
        hints += ["less than half the files"]
    if (matched == len(files)):
        score += 3 
    else:
        hints += ["wrong number of files"]
    rl = results['contents'].split('\n')
    rl.sort()
    tl = []
    for fn in files:
        with open(fn) as f:
            tl += f.read().upper().split('\n')
    tl.sort()
    if rl == tl:
        score += 4
    else:
        hints += ["wrong files"]
    return hints, score

def prepare_disks(templates, params):
    pass