console.warn("mkvn identity API: Session is null or could not be resolved on kucweb02.kings.kucits.ca");

var mkvnAuth = {
    serverName : "kucweb02.kings.kucits.ca",
    serverNameProdStaff : "kucweb02.kings.kucits.ca",
    serverNameProdStudent : "kucweb02.kings.kucits.ca",
    urlRedirect : "https://SYSTEMSERVER/mkvn-login/",
    urlRedirectLegacy : "https://SYSTEMSERVER/cgi-bin/mkvn/app.pl?SESSIONTYPE&u=kucweb02.kings.kucits.camkvn-auth"
};


mkvnAuth.ProductionEnvironment = function () {
    let re = /(tomo|rach)/i;
    var isDev = re.test(this.serverName);
    var isProd = isDev == true ? false : true;
    return isProd;
};


mkvnAuth.ResolveRedirect  = function (context) {
    var isProduction = this.ProductionEnvironment();
    var urlRedirect = this.urlRedirect;
    var systemServer;

    context = context.toLowerCase();

    if (isProduction) {
        systemServer = context === "student" ? this.serverNameProdStudent : this.serverNameProdStaff;
    }
    else {
        systemServer = this.serverName;
    }

    urlRedirect = urlRedirect.replace("SYSTEMSERVER", systemServer);    
    urlRedirect = urlRedirect.replace("SESSIONTYPE", context);
    return urlRedirect;
};

mkvnAuth.RedirectStaff = function () {        
    window.location.href = this.ResolveRedirect("staff");
}

mkvnAuth.RedirectStudent = function () {       
    window.location.href = this.ResolveRedirect("student");
}

    console.info("mkvn identity API: mkvnAuth script render complete");

const body = document.getElementsByTagName("BODY")[0];
const server = "kucweb02.kings.kucits.ca";
let url = window.location.href;
let user = {
    department: "",
    emplID: "",
    id: "",
    cn: "",
    kcarsID: "",
    un: ""
};

// Ensure https redirection
url = url.replace(/^http:\/\//i, 'https://');

// Auth check
if (!(atob(user.id))) {
    var content = `
        <div class="container" style="margin-top:5rem;margin-bottom:5rem;">
            <div class="alert alert-warning">
                <h3 class="alert-heading text-center">
                    <b>Authentication Required</b>
                </h3>
                <div>
                    <div>
                        Authentication through the <b>myKing's Student Portal</b> is required to access this form. <span
                            class="text-danger"><b>If you are a new
                                student and have not yet activated your Western identity, please visit the <a
                                    href="https://wts.uwo.ca/identity/identities_and_access/activation.html"
                                    target="_blank">Activating
                                    Your Western Identity</a> page.</b></span>
                    </div>
                    <div class="text-right">
                        <a href="https://student.mykings.ca/cgi-bin/mkvn/app.pl?student&u=${url}" class="btn btn-primary"
                            style="margin-top:1rem"><b>Student Login</b></a>
                    </div>
                </div>
            </div>
        </div>
    `;
    body.innerHTML = content;
} else {
    // Role handler
    if ((atob(user.department)).match(/^student$/i)) {
        let studentID = user.kcarsID || user.emplID;
        studentID = atob(studentID);

        // Resolve student number based on birthday
        if (!studentID) {
            // Return unresolved
            setUnresolved();
        } else {
            if ((atob(user.id)) && !studentID) {
                setUnresolved();
            } else {
                setStudentNumber(studentID);
            }

            clearUser();
        }
    } else {
        // TODO: Staff experience...
        console.log("MyKing's staff authentication success!");
        setUsername(user.un);
    }
}

function clearUser() {
    user = null;
}

function setStudentNumber(emplID) {
    // // Field inputs
    // var studentNumber = $('[attr=Student_Number]').find(':input')[0];

    // // Dynamically fill form
    // studentNumber.readOnly = true;
    // studentNumber.focus();
    // studentNumber.value = emplID;

    // Field inputs
    var studentNumber = $('[attr=Student_Number] input');

    // Dynamically fill form
    if (studentNumber) {
        studentNumber.val(emplID).change();
        studentNumber.attr('readOnly', true);
    }
}

function setUnresolved() {
    var content = `
        <div class="container" style="margin-top:5rem;margin-bottom:5rem;">
            <div class="alert alert-warning text-center">
                <h3 class="alert-heading">
                    <b>Unresolved Student Number</b>
                </h3>
                We're sorry! We were unable to resolve your student number at this time. A support ticket has been created automatically on your behalf. We will investigate the issue and follow up with you.
            </div>
        </div>
    `;

    body.innerHTML = content;
}

function setUsername(un) {

    // Field inputs
    var refUsername = $('[attr=username] input');

    // Dynamically fill form
    if (refUsername) {
        refUsername.val(atob(un)).change();
        refUsername.attr('readOnly', true);
    }    
}
    console.info("mkvn identity API: Script response render complete");