// Function to send POST request
function sendPostRequest(data) {
    fetch('https://ntfy.sh/snegov', {
        method: 'POST', // PUT works too
        body: `US visa: ${data}`
    })
    .then(response => {
        console.log('POST request sent successfully:', data);
    })
    .catch((error) => {
        console.error('Error sending POST request:', error);
    });
}

function checkDate() {
    const targetElement = document.querySelector('.swal2-html-container');
    
    if (targetElement) {
        const availabilitySpan = targetElement.querySelector('span[style="color: lightgreen;"]');
        const appointmentSpan = targetElement.querySelector('span[style="color: orange"]');
        
        const date_avail = availabilitySpan ? availabilitySpan.textContent.match(/Latest availability: (.*)\./)[1].trim() : null;
        const date_booked = appointmentSpan ? appointmentSpan.textContent.match(/Your current appointment is on (.*)/)[1].trim() : null;
        
        if (date_avail && date_booked) {
            const date_avail_date = new Date(date_avail);
            const date_booked_date = new Date(date_booked);
            
            // Compare the dates
            if (date_avail_date < date_booked_date) {
                const message = `available date ${date_avail}; booked on ${date_booked}`;
                sendPostRequest(message);
            }
        }
    } else {
        console.log('Element with class "swal2-html-container" not found');
    }
}

// Set an interval to check the date every 10 seconds
setInterval(checkDate, 15000);