import subprocess
import sys

import pytest

from facefusion import ffmpeg, ffmpeg_builder, process_manager
from facefusion.download import conditional_download
from facefusion.jobs.job_manager import clear_jobs, init_jobs
from .assert_helper import get_test_example_file, get_test_examples_directory, get_test_jobs_directory, get_test_output_path, is_test_output_file, prepare_test_output_directory


@pytest.fixture(scope = 'module', autouse = True)
def before_all() -> None:
	process_manager.start()
	conditional_download(get_test_examples_directory(),
	[
		'https://github.com/facefusion/facefusion-assets/releases/download/examples-3.0.0/target-240p.mp4'
	])

	for frame_number in [ 1, 2 ]:
		ffmpeg.run_ffmpeg(
			ffmpeg_builder.chain(
				ffmpeg_builder.set_input(get_test_example_file('target-240p.mp4')),
				[
					'-vframes',
					str(frame_number)
				],
				ffmpeg_builder.set_output(get_test_example_file('target-240p-batch-' + str(frame_number) + '.jpg'))
			)
		)


@pytest.fixture(scope = 'function', autouse = True)
def before_each() -> None:
	clear_jobs(get_test_jobs_directory())
	init_jobs(get_test_jobs_directory())
	prepare_test_output_directory()


def test_batch_run_targets() -> None:
	commands = [ sys.executable, 'facefusion.py', 'batch-run', '--workflow-mode', 'image-to-image', '--jobs-path', get_test_jobs_directory(), '--processors', 'face_debugger', '-t', get_test_example_file('target-240p-batch-*.jpg'), '-o', get_test_output_path('test-batch-run-targets-{index}.jpg') ]

	assert subprocess.run(commands).returncode == 0
	assert is_test_output_file('test-batch-run-targets-0.jpg') is True
	assert is_test_output_file('test-batch-run-targets-1.jpg') is True
	assert is_test_output_file('test-batch-run-targets-2.jpg') is False


def test_batch_run_sources_to_targets() -> None:
	commands = [ sys.executable, 'facefusion.py', 'batch-run', '--workflow-mode', 'image-to-image', '--jobs-path', get_test_jobs_directory(), '-s', get_test_example_file('target-240p-batch-*.jpg'), '-t', get_test_example_file('target-240p-batch-*.jpg'), '-o', get_test_output_path('test-batch-run-sources-to-targets-{index}.jpg') ]

	assert subprocess.run(commands).returncode == 0
	assert is_test_output_file('test-batch-run-sources-to-targets-0.jpg') is True
	assert is_test_output_file('test-batch-run-sources-to-targets-1.jpg') is True
	assert is_test_output_file('test-batch-run-sources-to-targets-2.jpg') is True
	assert is_test_output_file('test-batch-run-sources-to-targets-3.jpg') is True
	assert is_test_output_file('test-batch-run-sources-to-targets-4.jpg') is False