import re
from python.util import has_token_sequence, string_almost_equal, \
    string_contains_number, get_tokens, get_numbers, get_exception_desc
from server.hints import Hint

id = 25016
number = 4
visible = True

solution = '''\
seznam = eval(input("Vpišite seznam števil: "))
st = int(input("Vnesite število: "))

samo_veckratniki = True
for elt in seznam:
    if elt % st != 0:
        samo_veckratniki = False
        break
if samo_veckratniki:
    print("Vsebuje.")
else:
    print("Ne vsebuje.")
'''

hint_type = {
    'no_input_call' : Hint('no_input_call'),
    'no_eval_call' : Hint('no_eval_call'),
    'printing': Hint('printing'),
    'final_hint': Hint('final_hint')
}

def test(python, code, aux_code=''):
    tokens = get_tokens(code)

    test_in = [
        (None, '[]\n42\n'),
        (None, '[3, 0]\n3\n'),
        (None, '[27, 21, 3, 33, 60, -3]\n3\n'),
        (None, '[27, 21, 3, 33, 60, -3]\n9\n')
    ]
    test_out = [
        'Vsebuje samo večkratnike',
        'Vsebuje samo večkratnike',
        'Vsebuje samo večkratnike',
        'Ne vsebuje samo večkratnikov'
    ]

    # List of outputs: (expression result, stdout, stderr, exception).
    answers = python(code=aux_code+code, inputs=test_in, timeout=1.0)
    outputs = [ans[1] for ans in answers]

    n_correct = 0
    tin = None
    for i, (output, correct) in enumerate(zip(outputs, test_out)):
        if "Ne vsebuje" in correct and "ne vsebuje" in output.lower() \
        or "Ne vsebuje" not in correct and "ne vsebuje" not in output.lower() and "vsebuje" in output.lower():
            n_correct += 1
        else:
            tin = test_in[i][1]
            tout = correct

    passed = n_correct == len(test_in)
    hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_in)}}]
    if tin != None:
        hints.append({'id': 'problematic_test_case', 'args': {'testin': str(tin), 'testout': str(tout)}})
    else:
        hints.append({'id' : 'final_hint'})
    return passed, hints

def hint(python, code, aux_code=''):
    # run one test first to see if there are any exceptions
    answer = python(code=aux_code+code, inputs=[(None, '[12]\n12\n')], timeout=1.0)
    exc = get_exception_desc(answer[0][3])
    if exc: return exc

    tokens = get_tokens(code)

    if not has_token_sequence(tokens, ['input']):
        return [{'id': 'no_input_call'}]

    if not has_token_sequence(tokens, ['eval']):
        return [{'id': 'no_eval_call'}]

    # student is not using print function
    if not has_token_sequence(tokens, ['print']):
        return [{'id' : 'printing'}]

    return None