/*
 * Copyright (C) 2025 Watanabebashi Alpha
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

import { encode } from './node_modules/@toon-format/toon/dist/index.js';

const jsonInEl = document.getElementById('jsonIn');
const toonOutEl = document.getElementById('toonOut');
const convertBtn = document.getElementById('convertBtn');
const clearBtn = document.getElementById('clearBtn');
const copyBtn = document.getElementById('copyBtn');
let isError = false;


const resetCopyButton = () => {
  copyBtn.textContent = 'コピー';
  copyBtn.classList.remove('btn-success');
  copyBtn.classList.add('btn-outline-secondary');
};

convertBtn.addEventListener('click', () => {
  const text = jsonInEl.value.trim();
  if (!text) {
    toonOutEl.textContent = '';
    isError = false;
    return;
  }

  resetCopyButton();
  try {
    const parsedJson = JSON.parse(text);
    const toonData = encode(parsedJson);
    toonOutEl.value = toonData;
    isError = false;
  } catch (e) {
    isError = true;
    if (e instanceof SyntaxError) {
      toonOutEl.value = `JSONの形式が正しくありません`;
    } else {
      toonOutEl.value = `変換エラー`;
    }
  }
});

clearBtn.addEventListener('click', () => {
  jsonInEl.value = '';
  toonOutEl.value = '';
  isError = false;
  resetCopyButton(); 
});

copyBtn.addEventListener('click', () => {
  const textToCopy = toonOutEl.value;
  if (isError || !textToCopy) {
    return;
  }

  navigator.clipboard.writeText(textToCopy).then(() => {
    copyBtn.textContent = 'コピーしました！';
    copyBtn.classList.remove('btn-outline-secondary');
    copyBtn.classList.add('btn-success');
  }).catch(err => {
    console.error('クリップボードへのコピーに失敗しました: ', err);
  });
});