import webview
import subprocess
import sys

class HtmlView:
    def __init__(self, url_instance):
        self.url_instance = url_instance

    def regulator(self, uri):
        # Check if the URL is not from url_instance
        if not uri.startswith(self.url_instance):
            try:
                # Open the link using xdg-open
                subprocess.run(['xdg-open', uri], check=True)
            except subprocess.CalledProcessError as e:
                print(f"Failed to open URL: {uri}. Error: {e}")
        else:
            # If it is from url_instance, just load it in the webview
            #webview.load_url(uri)
            #webview.evaluate(f"window.location.href = '{uri}';")
            webview.windows[0].load_url(uri)

    def setup(self):
        # Create a webview window
        window = webview.create_window('Blasta', self.url_instance)
        # Bind the link click event to the regulator function
        window.expose(self.regulator)

        # Start the webview application
        webview.start()

if __name__ == '__main__':
    if len(sys.argv) != 2:
        print('Usage: {} <URL_OF_A_BLASTA_INSTANCE>'.format(sys.argv[0]))
        sys.exit(1)

    url_instance = sys.argv[1]
    html_view = HtmlView(url_instance)
    html_view.setup()