with open("index.html", "r", encoding="utf-8") as f:
    html = f.read()

import re

# Find the header section for Er Meydani
target = r'<button class="btn" onclick="openMidasCapitalModal\(\)">\s*<i class="fa-solid fa-coins"></i> Sermaye Ekle\s*</button>'
inject = r"""<button class="btn" style="background:rgba(243,156,18,0.2); color:#f39c12; border:1px solid #f39c12;" onclick="syncMidasPortfolio()" id="btn-sync-midas">
                        <i class="fa-solid fa-rotate"></i> Senkronize Et
                    </button>
                    <button class="btn" onclick="openMidasCapitalModal()">
                        <i class="fa-solid fa-coins"></i> Sermaye Ekle
                    </button>"""

if 'btn-sync-midas' not in html:
    html = re.sub(target, inject, html)

with open("index.html", "w", encoding="utf-8") as f:
    f.write(html)