# 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 spec import Spec
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:
        with DirectFetcher(TIMEOUT) as f:
            buf = io.BytesIO()
            spec = Spec(
                f"http://localhost:{self._port}",
                f,
                PandocTexifier('pandoc'),
                buf)
            paperdoorknob.process(spec)
            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()
            spec = Spec(f"http://localhost:{self._port}", f, texifier, buf)
            paperdoorknob.process(spec)

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


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