// ==UserScript==
// @name         podenco
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Adds text based on dice4d4 results on 2chan.
// @author       1 4 2 2 (9) pocodede...
// @match        https://img.2chan.net/*
// @grant        none
// ==/UserScript==

(function () {
    'use strict';

    function processDice() {
        const quotes = document.querySelectorAll('blockquote');

        quotes.forEach(quote => {
            if (quote.dataset.podencoProcessed) return;

            // Look for the specific text pattern "dice4d4="
            // The structure is usually: ... dice4d4=<font>1 2 3 4 (10)</font>
            let foundDice = false;
            let fontElement = null;

            for (let i = 0; i < quote.childNodes.length; i++) {
                const node = quote.childNodes[i];

                // Check for text node containing "dice4d4="
                if (node.nodeType === Node.TEXT_NODE && node.textContent.includes('dice4d4=')) {
                    let next = node.nextSibling;
                    while (next && next.nodeType === Node.TEXT_NODE && !next.textContent.trim()) {
                        next = next.nextSibling;
                    }

                    if (next && next.tagName === 'FONT') {
                        foundDice = true;
                        fontElement = next;
                        break;
                    }
                }
            }

            if (foundDice && fontElement) {
                const diceText = fontElement.textContent; // e.g., "1 2 2 4 (9)"
                const match = diceText.match(/^(\d)\s+(\d)\s+(\d)\s+(\d)/);

                if (match) {
                    const numbers = match.slice(1, 5); // ['1', '2', '2', '4']
                    const map = {
                        '1': 'ぽ',
                        '2': 'で',
                        '3': 'ん',
                        '4': 'こ'
                    };

                    let resultString = '';
                    numbers.forEach(num => {
                        if (map[num]) {
                            resultString += map[num];
                        }
                    });

                    resultString += '…';

                    const resultSpan = document.createElement('span');
                    resultSpan.textContent = ' ' + resultString;
                    resultSpan.style.color = '#ff0000';
                    resultSpan.style.fontSize = '80%';

                    if (fontElement.nextSibling) {
                        quote.insertBefore(resultSpan, fontElement.nextSibling);
                    } else {
                        quote.appendChild(resultSpan);
                    }

                    quote.dataset.podencoProcessed = 'true';
                }
            }
        });
    }

    processDice();

    const observer = new MutationObserver((mutations) => {
        processDice();
    });

    observer.observe(document.body, {
        childList: true,
        subtree: true
    });
})();