import tempfile

from .enums import TeXType
from .formatting_config import FormattingConfig
from .pytex_formatter import PyTeXFormatter
from pathlib import Path
import subprocess
import shutil

from typing import List, Tuple


class DocStripFormatter(PyTeXFormatter):

    @property
    def output_files(self) -> List[str]:
        if self.config.tex_out_type == TeXType.TeXClass:
            return self.name + '.cls'
        elif self.config.tex_out_type == TeXType.TeXClass:
            return self.name + '.sty'
        else:
            raise NotImplementedError

    def format(self, build_dir: Path, overwrite: bool = False) -> List[Tuple[str, FormattingConfig]]:
        tmp_dir: Path = Path(tempfile.mkdtemp())
        shutil.copy(
            self.input_file,
            tmp_dir
        )
        if self.input_file.with_suffix('.ins').exists():
            result = subprocess.run(
                ['tex', self.input_file.with_suffix('.ins').name],
                cwd=tmp_dir,
                stderr=subprocess.STDOUT
            )
            if not result.returncode == 0:
                raise NotImplementedError
        else:
            result = subprocess.run(
                ['pdflatex', self.input_file.name],
                cwd=tmp_dir,
                stderr=subprocess.STDOUT
            )
            if not result.returncode == 0:
                raise NotImplementedError
        for file in self.output_files:
            outfile = tmp_dir / file
            if not outfile.exists():
                raise NotImplementedError
            shutil.copy(outfile, build_dir)
        shutil.rmtree(tmp_dir)
        return []  # No future config

    @property
    def dependencies(self) -> List[str]:
        return []  # TODO