import json
import os
from pathlib import Path
import platform
import subprocess
import tempfile
import unittest

ROOT = Path(__file__).resolve().parents[2]
DEPLOY = ROOT / 'scripts/deploy-site.sh'


class DeploymentTests(unittest.TestCase):
    def test_manifest_only_lists_rendered_photos(self):
        with tempfile.TemporaryDirectory() as folder:
            root = Path(folder)
            (root / '_site/art').mkdir(parents=True)
            job = 'a' * 64
            (root / '_site/art/index.html').write_text(f'<div id="photo-{job}"></div>')
            subprocess.run(['python3', str(ROOT / 'scripts/photo-manifest.py')], cwd=root,
                           env=dict(os.environ, GITHUB_SHA='b' * 40), check=True)
            self.assertEqual(json.loads((root / '_site/photo-publication.json').read_text()),
                             {'commit': 'b' * 40, 'photos': [job]})

    @unittest.skipUnless(platform.system() == 'Linux', 'Production activation uses GNU mv and flock')
    def test_activation_failure_and_stale_workflow(self):
        activation = DEPLOY.read_text().split("<<'REMOTE'\n", 1)[1].rsplit('\nREMOTE', 1)[0]
        with tempfile.TemporaryDirectory() as folder:
            root = Path(folder)
            (root / 'releases').mkdir()

            def activate(number, complete=True):
                release = root / 'releases' / str(number)
                (release / 'art').mkdir(parents=True)
                (release / 'art/index.html').write_text(str(number))
                if complete:
                    (release / 'photo-publication.json').write_text('{"photos":[]}')
                return subprocess.run(['bash', '-s', '--', str(root), str(release), str(number)],
                                      input=activation, text=True, capture_output=True)

            self.assertEqual(activate(2).returncode, 0)
            self.assertEqual((root / 'current/art/index.html').read_text(), '2')
            self.assertNotEqual(activate(3, complete=False).returncode, 0)
            self.assertEqual((root / 'current/art/index.html').read_text(), '2')
            self.assertEqual(activate(1).returncode, 0)
            self.assertEqual((root / 'current/art/index.html').read_text(), '2')
            self.assertEqual(activate(4).returncode, 0)
            self.assertEqual((root / 'current/art/index.html').read_text(), '4')


if __name__ == '__main__':
    unittest.main()