import io
import os.path
import zipfile
import bentoml
import tempfile
from pathlib import Path

from docx.enum.text import WD_COLOR_INDEX


class TranscriptionZipper(bentoml.Runnable):
    SUPPORTED_RESOURCES = ("nvidia.com/gpu", "cpu")
    SUPPORTS_CPU_MULTI_THREADING = True

    @bentoml.Runnable.method(batchable=False)
    def zip_transcription(self, transcription_list):
        zip_buffer = io.BytesIO()

        for t_list in transcription_list:
            orig_filename = t_list[0]
            if ".mp3" in orig_filename:
                orig_filename = orig_filename.removesuffix(".mp3")
            else:
                orig_filename = orig_filename.removesuffix(".wav")

            new_content = create_word_content(orig_filename, t_list[1], t_list[2])
            new_content.save(orig_filename + '.docx')
            # new_content = create_content(t_list[1], t_list[2])  # html string

            with zipfile.ZipFile(zip_buffer, "a") as zip_file:
                # zip_file.writestr(file_name + ".html", new_content)
                zip_file.write(orig_filename + '.docx')

        # Return the zip file as bytes
        return zip_buffer.getvalue()


def create_word_content(filename, old_content, new_content):
    from docx import Document

    document = Document()

    document.add_heading(filename, 1)

    p = document.add_paragraph()
    run = p.add_run()
    run.add_break()

    old_content = old_content.split(" ")
    changed_content = new_content.split(" ")
    both = [word for word in changed_content if word in old_content]
    i = 0

    while i < len(changed_content):
        try:
            if changed_content[i] == old_content[i]:
                p.add_run(" " + changed_content[i])
                # new_content += " " + changed_content[i]
                both.pop(0)
                old_content.pop(0)
                changed_content.pop(0)
            else:
                old_pos = old_content.index(both[0])
                new_pos = changed_content.index(both[0])
                p.add_run(" " + " ".join(old_content[0:old_pos])).font.strike = True
                p.add_run(" " + " ".join(changed_content[0:new_pos])).font.highlight_color = WD_COLOR_INDEX.YELLOW
                # new_content += " <s>" + " ".join(old_content[0:old_pos]) + "</s> "
                # new_content += " ".join(changed_content[0:new_pos])
                del old_content[0:old_pos]
                del changed_content[0:new_pos]
        except:
            p.add_run(" ".join(old_content[i:])).font.strike = True
            p.add_run(" ".join(changed_content[i:])).font.highlight_color = WD_COLOR_INDEX.YELLOW
            # new_content += " <s>" + " ".join(old_content[i:]) + "</s> "
            # new_content += " " + " ".join(changed_content[i:])
            break

    return document


def create_content(old_content, new_content):
    old_content = old_content.split(" ")
    changed_content = new_content.split(" ")
    both = [word for word in changed_content if word in old_content]
    new_content = ""
    i = 0

    while i < len(changed_content):
        try:
            if changed_content[i] == old_content[i]:
                new_content += " " + changed_content[i]
                both.pop(0)
                old_content.pop(0)
                changed_content.pop(0)
            else:
                old_pos = old_content.index(both[0])
                new_pos = changed_content.index(both[0])
                new_content += " <s>" + " ".join(old_content[0:old_pos]) + "</s> "
                new_content += " ".join(changed_content[0:new_pos])
                del old_content[0:old_pos]
                del changed_content[0:new_pos]
        except:
            new_content += " <s>" + " ".join(old_content[i:]) + "</s> "
            new_content += " " + " ".join(changed_content[i:])
            break

    return new_content