function getSubdomain() {
    const hostname_arr = window.location.hostname.split('.')// fretex-dfsf.advoca.no

    let subdomain = ''

    if (
        hostname_arr.length === 3 &&
        hostname_arr[0] &&
        !['dev', 'test', 'stage', 'intern', 'www'].find((sub) => sub === hostname_arr[0])
    ) {
        subdomain = hostname_arr[0]

        const subdomain_arr = subdomain.split('-')

        if (subdomain_arr.length === 2 && subdomain_arr[0]) {
            subdomain = subdomain_arr[0]
        }
    }
    return subdomain
}

export const subdomain = getSubdomain()

export function redirectFromSubdomainToDomain() {
    const domain_hostname = `${createDomainUrlFromSubdomain()}${window.location.pathname}`

    window.location.href = domain_hostname

    return null
}

export function createDomainUrlFromSubdomain() {
    let hostname = window.location.hostname.replace(subdomain, '')

    ;(hostname.startsWith('-') && (hostname = hostname.substring(1))) ||
        (hostname.startsWith('.') && (hostname = 'www' + hostname))

    const { port, protocol } = window.location

    return protocol + '//' + hostname + (port ? `:${port}` : '')
}