function getCookie(cname) {
    let name = cname + '='
    let decodedCookie = decodeURIComponent(document.cookie)
    let ca = decodedCookie.split(';')
    for (let i = 0; i < ca.length; i++) {
        let c = ca[i]
        while (c.charAt(0) === ' ') {
            c = c.substring(1)
        }
        if (c.indexOf(name) === 0) {
            return c.substring(name.length, c.length)
        }
    }
    return ''
}

function setCookie(cname, cvalue, exdays) {
    const d = new Date()
    d.setTime(d.getTime() + exdays * 24 * 60 * 60 * 1000)
    let expires = 'expires=' + d.toUTCString()
    document.cookie = cname + '=' + cvalue + ';' + expires + ';path=/'
}

function logout() {
    localStorage.setItem('priv_key', '')
    localStorage.setItem('decryption_key', '')
    location.assign('/logout')
}

async function setuser() {
    if (getCookie('priv_key') !== '') {
        localStorage.setItem('priv_key', getCookie('priv_key'))
        setCookie('priv_key', '', 0)
    }
    let user = await (await fetch('/api/getuser')).json()
    let username
    let bio
    let avatar
    username = user['username']
    bio = user['bio']
    avatar = user['avatar']
    if (user['error']) username = user['error']
    if (user['error']) bio = user['error']
    if (!bio) bio = 'wow such empty'
    if (avatar) {
        avatar = '/avatars/' + avatar
    } else {
        avatar = '/images/default_avatar.png'
    }
    document.getElementById('user').innerText = `User: ${username}`
    document.getElementById('userBio').innerText =
        'Bio: ' + decodeURIComponent(bio)
    document.getElementById('avatarimg').src = avatar
}