"""
novelWriter – Material Icon Theme
=================================

This file is a part of novelWriter
Copyright (C) 2019 Veronica Berglyd Olsen and novelWriter contributors

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
"""
from __future__ import annotations

import subprocess

from pathlib import Path

from lxml import etree

MATERIAL_REPO = "https://github.com/google/material-design-icons.git"
GRADE = ""

ICON_MAP = {
    "alert_error": "error",
    "alert_info": "info",
    "alert_question": "help",
    "alert_warn": "warning",

    "cls_archive": "archive",
    "cls_character": "group",
    "cls_custom": "label",
    "cls_entity": "apartment",
    "cls_none": "close",
    "cls_novel": "book_2",
    "cls_object": "key",
    "cls_plot": "extension",
    "cls_template": "topic",
    "cls_timeline": "hourglass_empty",
    "cls_trash": "delete",
    "cls_world": "globe",

    "fmt_bold": "format_bold",
    "fmt_italic": "format_italic",
    "fmt_mark": "format_ink_highlighter",
    "fmt_strike": "format_strikethrough",
    "fmt_subscript": "subscript",
    "fmt_superscript": "superscript",
    "fmt_underline": "format_underlined",
    "fmt_toolbar": "text_format",

    "search_cancel": "close",
    "search_case": "match_case",
    "search_loop": "laps",
    "search_preserve": "text_fields",
    "search_project": "document_search",
    "search_regex": "regular_expression",
    "search_replace": "find_replace",
    "search_word": "match_word",
    "search": "search",

    "bullet-off": "radio_button_unchecked",
    "bullet-on": "radio_button_checked",

    "bookmarks": "bookmarks",
    "checked": "select_check_box",
    "chevron_down": "keyboard_arrow_down",
    "chevron_left": "arrow_back_ios",
    "chevron_right": "arrow_forward_ios",
    "chevron_up": "keyboard_arrow_up",
    "close": "close",
    "document_add": "note_add",
    "document": "description",
    "edit": "edit",
    "folder": "folder",
    "item_add": "add",
    "list": "format_list_bulleted",
    "maximise": "fullscreen",
    "minimise": "close_fullscreen",
    "more_vertical": "more_vert",
    "noncheckable": "indeterminate_check_box",
    "project_copy": "folder_copy",
    "refresh": "refresh",
    "unchecked": "disabled_by_default",
}


def _fixXml(svg: str) -> str:
    """Clean up the SVG XML and add needed fields."""
    xSvg = etree.fromstring(svg)  # type: ignore
    xSvg.set("fill", "#000000")
    xSvg.set("height", "128")
    xSvg.set("width", "128")
    return etree.tostring(xSvg).decode()


def processMaterialIcons(workDir: Path, output: Path, style: str, fill: bool, weight: int) -> None:
    """Process material icons of a given spec and write output file."""
    srcRepo = workDir / "material-design-icons"
    if not srcRepo.is_dir():
        subprocess.call(["git", "clone", MATERIAL_REPO, "--depth", "50"], cwd=workDir)
    else:
        subprocess.call(["git", "pull"], cwd=srcRepo)

    kind = f"wght{weight}" if weight != 400 else ""
    kind += "fill1" if fill else ""

    with open(output, mode="w", encoding="utf-8") as icons:
        iconSrc = srcRepo / "symbols" / "web"
        for key, name in ICON_MAP.items():
            if kind:
                fileNmae = f"{name}_{kind}_24px.svg"
            else:
                fileNmae = f"{name}_24px.svg"
            iconFile = iconSrc / name / f"materialsymbols{style}" / fileNmae
            if iconFile.is_file():
                svg = iconFile.read_text(encoding="utf-8")
                icons.write(f"{key:<15s} = {_fixXml(svg)}\n")
                print(f"Wrote: {iconFile.stem}")
            else:
                print(f"Not Found: {iconFile}")