import os
import pytest
import random
import shutil

from pathlib import Path

from helpers import *
from fixtures import *

cmd = 'python3 updatescannedpics.py'

def test_bad_filename(in_out_dirs, log_file):
    in_dir, out_dir = in_out_dirs

    file_name = gen_rand_name(12) + ".jpg"
    Path(os.path.join(in_dir, file_name)).touch()

    command = f'{cmd} -i {in_dir} -o {out_dir}'
    output = run_successfull_cmd(command)

    expected = f"File name not compatable: {file_name}"
    assert check_log_string(log_file, expected)

def test_bad_jpg_format(in_out_dirs, log_file):
    in_dir, out_dir = in_out_dirs

    year = random.randint(1900, 2000)
    month = random.randint(1, 12)
    day = random.randint(1, 28)
    index = random.randint(0, 99)

    file_name = f"{year}{month:02d}{day:02d}_{index:02d}.jpg"
    Path(os.path.join(in_dir, file_name)).touch()

    command = f'{cmd} -i {in_dir} -o {out_dir}'
    output = run_successfull_cmd(command)

    expected = f"Bad file format for {file_name}"
    assert check_log_string(log_file, expected)


def test_bad_jpg_year(in_out_dirs, log_file):
    in_dir, out_dir = in_out_dirs

    year_low = random.randint(1000, 1799)
    year_high = random.randint(2010, 2100)
    month = random.randint(1, 12)
    day = random.randint(1, 28)
    index = random.randint(0, 99)

    file_name_high = f"{year_high}{month:02d}{day:02d}_{index:02d}.jpg"
    file_name_low = f"{year_low}{month:02d}{day:02d}_{index:02d}.jpg"

    shutil.copyfile("pytest/example_pics/u_001.jpg", f"{in_dir}/{file_name_high}")
    shutil.copyfile("pytest/example_pics/u_002.jpg", f"{in_dir}/{file_name_low}")

    command = f'{cmd} -m -i {in_dir} -o {out_dir}'
    output = run_successfull_cmd(command)

    expected = [
        f"Year too great: {year_high}",
        f"Year too early: {year_low}"
    ]

    for exp in expected:
        assert check_log_string(log_file, exp)