async function get_config() {
    response = await fetch("/config?json", {method: "GET", headers: {"Accept": "application/json"}})
    if (! response.ok){
        throw Error("config data request error: " + await response.text())
    }
    return response.json()
}

async function render_config(){
    params = await get_config()
    for (par of Object.keys(params)) {
        if (params.par == null) {
            params.par = ""
        }
    }
    const {address, port, profile} = params
    document.getElementById("address").value = address
    document.getElementById("port").value = port
    document.getElementById("profile").value = profile
}

async function send_config() {
    address_value = document.getElementById("address").value
    port_value = document.getElementById("port").value
    if (port_value == ""){
        port_value = null
    }
    else{
        port_value = parseInt(port_value)
    }
        
    
    response = await fetch("/config", {method: "POST", headers: {"Accept": "application/json", "Content-Type": "application/json"},
        body: JSON.stringify({"address": address_value, "port": port_value, })})
    document.location.reload()
}