import os
from pathlib import Path

import jinja2
import pytest

from bopytex.service import main


@pytest.fixture
def template_path(tmp_path):
    template = tmp_path / "tpl_source.tex"
    with open(template, "w") as tpl:
        tpl.write(
            """
\\documentclass{article}

\\begin{document}
First document.

Subject {{ number }}
\\end{document}
        """
        )
    return template


@pytest.fixture
def bad_template_path(tmp_path):
    template = tmp_path / "tpl_source.tex"
    with open(template, "w") as tpl:
        tpl.write(
            """
\\documentclass{article}

\\begin{document}
First document.

Subject {{ number }}
        """
        )
    return template


@pytest.fixture
def jinja2_env(tmp_path):
    templateEnv = jinja2.Environment(loader=jinja2.FileSystemLoader(tmp_path))
    return templateEnv


def test_with_default_planner(template_path, jinja2_env, tmp_path):
    os.chdir(tmp_path)

    options = {
        "template": str(template_path.name),
        "quantity_subjects": 3,
        "corr": False,
        "no_join": False,
        "no_pdf": False,
        "jinja2": {
            "environment": jinja2_env,
        },
    }

    for message in main(**options):
        assert message.status == 0

    assert Path("joined_source.pdf").exists()


def test_with_default_planner_bad_template(bad_template_path, jinja2_env, tmp_path):
    os.chdir(tmp_path)

    options = {
        "template": str(bad_template_path.name),
        "quantity_subjects": 3,
        "corr": False,
        "no_join": False,
        "no_pdf": False,
        "jinja2": {
            "environment": jinja2_env,
        },
    }

    for message in main(**options):
        pass

    assert not Path("joined_source.pdf").exists()