// ==UserScript==
// @name         Saddlebag Exchange - Download Sale History CSV
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Adds a button to download the sale history table as CSV on Saddlebag Exchange
// @author       BananaLumps
// @match        https://saddlebagexchange.com/ffxiv/extended-history*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    function createDownloadButton() {
        const container = document.querySelector('.mx-3'); // place near "Sale History"
        if (!container || document.querySelector('#downloadCsvButton')) return;

        const button = document.createElement('button');
        button.id = 'downloadCsvButton';
        button.textContent = 'Download CSV';
        button.style.cssText = `
            background: #2563eb;
            color: white;
            padding: 6px 12px;
            margin: 8px 0;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 14px;
        `;
        button.addEventListener('mouseenter', () => button.style.background = '#1d4ed8');
        button.addEventListener('mouseleave', () => button.style.background = '#2563eb');

        button.addEventListener('click', () => {
            const table = document.querySelector('table');
            if (!table) return alert('Table not found!');

            let csv = '';
            const rows = table.querySelectorAll('tr');
            rows.forEach((row, i) => {
                const cells = row.querySelectorAll('th, td');
                const rowData = Array.from(cells)
                    .map(cell => `"${cell.innerText.replace(/"/g, '""')}"`)
                    .join(',');
                csv += rowData + '\n';
            });

            const blob = new Blob([csv], { type: 'text/csv;charset=utf-8;' });
            const url = URL.createObjectURL(blob);
            const a = document.createElement('a');
            a.href = url;
            a.download = 'sale_history.csv';
            document.body.appendChild(a);
            a.click();
            document.body.removeChild(a);
            URL.revokeObjectURL(url);
        });

        container.appendChild(button);
    }

    // Run after page loads (in case table is dynamically loaded)
    const observer = new MutationObserver(() => {
        if (document.querySelector('table') && !document.querySelector('#downloadCsvButton')) {
            createDownloadButton();
        }
    });
    observer.observe(document.body, { childList: true, subtree: true });
})();