# paperdoorknob: Print glowfic
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, version 3.


import unittest
import io
import subprocess
import paperdoorknob
from testing.fakeserver import FakeGlowficServer
from fetch import DirectFetcher
from texify import DirectTexifier, PandocTexifier, VerifyingTexifier

TIMEOUT = 8


class TestPaperDoorknob(unittest.TestCase):
    def setUp(self) -> None:
        self._server = self.enterContext(FakeGlowficServer())
        self._port = self._server.port()

    def testReplies(self) -> None:
        with DirectFetcher(TIMEOUT) as f:
            replies = paperdoorknob.replies(
                paperdoorknob.clean(
                    paperdoorknob.parse(
                        f.fetch(f"http://localhost:{self._port}"))))
            self.assertEqual([r.text.strip() for r in replies],
                             ["This is glowfic", "You sure?", "Pretty sure."])

    def testProcess(self) -> None:
        texifier = PandocTexifier('pandoc')
        with DirectFetcher(TIMEOUT) as f:
            buf = io.BytesIO()
            paperdoorknob.process(
                f"http://localhost:{self._port}", f, texifier, buf)
            self.assertEqual(buf.getvalue(), b'''\\documentclass{article}
\\begin{document}
This is glowfic
You \\emph{sure}?
Pretty sure.
\\end{document}
''')

    def testDirectTexifier(self) -> None:
        texifier = VerifyingTexifier(
            PandocTexifier('pandoc'), DirectTexifier())
        with DirectFetcher(TIMEOUT) as f:
            buf = io.BytesIO()
            paperdoorknob.process(
                f"http://localhost:{self._port}", f, texifier, buf)

    def testPDF(self) -> None:
        texifier = PandocTexifier('pandoc')
        with DirectFetcher(TIMEOUT) as f:
            with open("test.tex", 'wb') as out:
                paperdoorknob.process(
                    f"http://localhost:{self._port}", f, texifier, out)
            subprocess.run(['pdflatex', 'test.tex'],
                           stdin=subprocess.DEVNULL, check=True)


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