from .formatting_config import FormattingConfig
from .tex_formatter import TexFormatter
from pathlib import Path
from typing import Optional, List, Tuple, Dict
from .enums import TeXFlavour, TeXType, FormatterProperty


class SimpleTeXFormatter(TexFormatter):
    @property
    def output_file(self) -> str:
        switcher = {
            TeXType.TeXClass: '.cls',
            TeXType.TeXPackage: '.sty',
        }
        return self.name + switcher[self.config.tex_type]

    def close_output_stream(self):
        self._output_file.close()

    @property
    def future_config(self) -> List[Tuple[str, FormattingConfig]]:
        return []  # TODO

    @property
    def dependencies(self) -> List[str]:
        return []  # sty / cls file does not depend on anything

    @property
    def output_files(self) -> List[str]:
        return [self.output_file]

    def _post_process_line(self, line: str) -> str:
        if self.config.tex_flavour == TeXFlavour.LaTeX2e:
            raw = line.rstrip(' %\n')
            return '' if raw == '' else raw + '%'
        else:
            return line.rstrip()

    def format_post_header(self) -> None:
        if self.config.has_description:
            if self.config.tex_flavour == TeXFlavour.LaTeX2e:
                self._shipout_line(
                    r'\Provides%s{%s}[%s - %s]'
                    % (
                        self.config.tex_type.value.capitalize(),
                        self.name,
                        self.attribute_dict[FormatterProperty.date.value],
                        self.attribute_dict[FormatterProperty.description.value]
                    )
                )
            else:
                self._shipout_line(
                    '\\ProvidesExpl%s { %s } { %s } { %s }\n  { %s }'
                    % (
                        self.config.tex_type.value.capitalize(),
                        self.name,
                        self.attribute_dict[FormatterProperty.date.value],
                        self.config.version,
                        self.config.description
                    )
                )