import logging
import os
import traceback

from bs4 import BeautifulSoup

from app import file_processor
from app.app_core import AppCore
from app.dto import ProcessingFileDirReq, ProcessingFileResp, FileProcessingPluginInitInfo, ProcessingFileStruct
from app.file_processor_html import FileProcessorHtml

plugin_name = os.path.basename(__file__)[:-3]  # calculating modname
logger = logging.getLogger('uvicorn')


def start(core: AppCore):
    manifest = {  # plugin settings
        "name": "Translator for epub books",  # name
        "version": "1.0",  # version

        "default_options": {
            "enabled": True,
            "text_format": {
                "original_tag": "",
                "translate_tag": "emphasis",
                "header_delimiter": " / ",
            },
            "header_tags": [],
            "text_tags": ['p'],
            "output_file_name_template": {
                "preserve_original": "%source%__%from_lang%_%to_lang%",
                "without_original": "%source%__%to_lang%",
            },
            "translate_only_first_paragraphs": 0,
            "default_extension_processor": {
                "fb2": True
            },
        },

        "file_processing": {
            "file_epub_translate": (init, file_processing, processed_file_name)
        }
    }

    return manifest


def start_with_options(core: AppCore, manifest: dict):
    pass


def init(core: AppCore) -> FileProcessingPluginInitInfo:
    return FileProcessingPluginInitInfo(plugin_name=plugin_name, supported_extensions={"fb2"})


def file_processing(core: AppCore, file_struct: ProcessingFileStruct, req: ProcessingFileDirReq) -> ProcessingFileResp:
    options = core.plugin_options(plugin_name)
    html_processor = FileProcessorHtml(core=core, options=options)

    try:
        fb2_content = file_processor.read_file_with_fix_encoding(file_struct.path_file_in())

        soup = BeautifulSoup(fb2_content, features="xml")
        html_processor.process(req, soup, "body")

        out_file_name = processed_file_name(core=core, file_struct=file_struct, req=req)

        with open(file_struct.path_file_out(out_file_name), 'w+', encoding='utf-8') as fb2_put_file:
            fb2_put_file.write(soup.decode())

        return file_processor.get_processing_file_resp_ok(file_struct=file_struct, file_out=out_file_name)
    except Exception as e:
        traceback.print_tb(e.__traceback__, limit=10)
        logging.error("Error with processing file %s: %s", file_struct.file_name_ext, str(e))
        return file_processor.get_processing_file_resp_error(
            file_in=file_struct.file_name_ext, path_in=file_struct.path_in, error_msg=str(e))


def processed_file_name(core: AppCore, file_struct: ProcessingFileStruct, req: ProcessingFileDirReq) -> str:
    options = core.plugin_options(plugin_name)

    return file_processor.file_name_from_template(file_struct=file_struct, req=req, options=options)