async function checkLogin() {
    let resp = await fetch('../whoami')
    if (resp.ok) {
        console.log("Already logged in, let's change password instead")
        document.location.href = 'change.html'
    }
    data = await resp.json()
}

async function onSubmit(evt) {
    evt.preventDefault()

    let resp = await fetch('../login', {
        method: 'POST',
        body: JSON.stringify({
            username: document.querySelector('#login-form input[name=username]').value,
            password: document.querySelector('#login-form input[name=password]').value,
        })
    })
    console.log('ok', resp)
    document.location.href = '../'

}

function initLogin() {
    checkLogin()
    document.getElementById("login-form").addEventListener('submit', onSubmit, false)
}
document.addEventListener('DOMContentLoaded', initLogin)