from datetime import datetime, timedelta

from nose.tools import raises, eq_

from .forge import (
    get_files_and_intervals,
    get_timefile_exact,
    round_timefile,
    get_timefile,
    mp3_join,
)
from .config_manager import get_config

eight = datetime(2014, 5, 30, 20)
nine = datetime(2014, 5, 30, 21)
ten = datetime(2014, 5, 30, 22)

get_config()["AUDIO_INPUT"] = ""
get_config()["AUDIO_INPUT_FORMAT"] = "%Y-%m/%d/%Y-%m-%d-%H-%M-%S.mp3"
get_config()["FFMPEG_PATH"] = "ffmpeg"
get_config()["FFMPEG_OUT_CODEC"] = ["-acodec", "copy"]


def minutes(n):
    return timedelta(minutes=n)


def seconds(n):
    return timedelta(seconds=n)


# timefile


def test_timefile_exact():
    eq_(get_timefile_exact(eight), "2014-05/30/2014-05-30-20-00-00.mp3")


# Rounding


def test_rounding_similarity():
    eq_(round_timefile(eight), round_timefile(eight + minutes(20)))
    assert round_timefile(eight) != round_timefile(nine)


def test_rounding_value():
    eq_(round_timefile(eight), eight)
    eq_(round_timefile(eight + minutes(20)), eight)


# Rounding + timefile


def test_timefile_alreadyround():
    eq_(get_timefile(eight), "2014-05/30/2014-05-30-20-00-00.mp3")


def test_timefile_toround():
    eq_(get_timefile(eight + minutes(20)), "2014-05/30/2014-05-30-20-00-00.mp3")


# Intervals


@raises(ValueError)
def test_intervals_same():
    tuple(get_files_and_intervals(eight, eight))


@raises(ValueError)
def test_intervals_before():
    tuple(get_files_and_intervals(nine, eight))


def test_intervals_full_1():
    res = list(get_files_and_intervals(eight, nine - seconds(1)))
    eq_(len(res), 1)
    eq_(res[0][1], 0)
    eq_(res[0][2], 0)


def test_intervals_partial_1():
    res = list(get_files_and_intervals(eight, nine - minutes(10)))
    eq_(len(res), 1)
    eq_(res[0][1], 0)
    eq_(res[0][2], 10 * 60 - 1)


def test_intervals_exact_2():
    res = list(get_files_and_intervals(eight, nine))
    eq_(len(res), 2)
    eq_(res[0][1], 0)
    eq_(res[0][2], 0)
    eq_(res[1][1], 0)
    eq_(res[1][2], 3599)


def test_intervals_partial_2():
    res = list(get_files_and_intervals(eight, nine + minutes(50)))
    eq_(len(res), 2)
    eq_(res[0][1], 0)
    eq_(res[0][2], 0)
    eq_(res[1][1], 0)
    eq_(res[1][2], 599)


def test_intervals_full_2():
    res = list(get_files_and_intervals(eight, nine + minutes(59) + seconds(59)))
    eq_(len(res), 2)
    eq_(res[0][1], 0)
    eq_(res[0][2], 0)
    eq_(res[1][1], 0)
    eq_(res[1][2], 0)


def test_intervals_exact_3():
    res = list(get_files_and_intervals(eight, ten))
    eq_(len(res), 3)
    eq_(res[0][1], 0)
    eq_(res[0][2], 0)
    eq_(res[1][1], 0)
    eq_(res[1][2], 0)
    eq_(res[2][1], 0)
    eq_(res[2][2], 3599)


def test_intervals_partial_3():
    res = list(get_files_and_intervals(eight, ten + minutes(50)))
    eq_(len(res), 3)
    eq_(res[0][1], 0)
    eq_(res[0][2], 0)
    eq_(res[1][1], 0)
    eq_(res[1][2], 0)
    eq_(res[2][1], 0)
    eq_(res[2][2], 599)


def test_intervals_full_3():
    res = list(get_files_and_intervals(eight, ten + minutes(59) + seconds(59)))
    eq_(len(res), 3)
    eq_(res[0][1], 0)
    eq_(res[0][2], 0)
    eq_(res[1][1], 0)
    eq_(res[1][2], 0)
    eq_(res[2][1], 0)
    eq_(res[2][2], 0)


def test_intervals_middle_1():
    res = list(get_files_and_intervals(eight + minutes(20), nine - minutes(20)))
    eq_(len(res), 1)
    eq_(res[0][1], 20 * 60)
    eq_(res[0][2], 20 * 60 - 1)


def test_intervals_left_2():
    res = list(get_files_and_intervals(eight + minutes(30), nine))
    eq_(len(res), 2)
    eq_(res[0][1], 30 * 60)
    eq_(res[0][2], 0)
    eq_(res[1][1], 0)
    eq_(res[1][2], 3599)


# MP3 Join


def test_mp3_1():
    eq_(" ".join(mp3_join((("a", 0, 0),))), "ffmpeg -i concat:a -acodec copy")


def test_mp3_1_left():
    eq_(" ".join(mp3_join((("a", 160, 0),))), "ffmpeg -i concat:a -acodec copy -ss 160")


def test_mp3_1_right():
    eq_(
        " ".join(mp3_join((("a", 0, 1600),))), "ffmpeg -i concat:a -acodec copy -t 2000"
    )


def test_mp3_1_leftright():
    eq_(
        " ".join(mp3_join((("a", 160, 1600),))),
        "ffmpeg -i concat:a -acodec copy -ss 160 -t 1840",
    )


def test_mp3_2():
    eq_(
        " ".join(mp3_join((("a", 0, 0), ("b", 0, 0)))),
        "ffmpeg -i concat:a|b -acodec copy",
    )


def test_mp3_2_leftright():
    eq_(
        " ".join(mp3_join((("a", 1000, 0), ("b", 0, 1600)))),
        "ffmpeg -i concat:a|b -acodec copy -ss 1000 -t 4600",
    )