{% extends "layout_wide.html" %}

{% block head %}
<script type="text/javascript">

var global_list = {};
var data = Array(); 
var ad_rspec = Array(); 
var request_rspec = Array(); 
var manifest_rspec = Array(); 
var deleted_nodes = {}; 
var added_nodes = {}; 

var len_platforms = {{len_platforms}};

/* render_flavor & render_image */
function render_option(obj){
    var option = document.createElement("option");
    option.text = obj["@name"];
    option.value = obj["@name"];
    return option;
}
function render_description(platform, obj, type){
    if($('#'+platform+'_'+type).length==0){
        $('#'+platform+'_add').append("<div id='"+platform+"_"+type+"'>");
    }
    var d = platform+'_'+type+'_'+obj['@name'];
    d = d.replace(/ /g, '');
    id = d.replace( /(:|\.|\[|\])/g, "\\$1" );
    if($('#'+id).length==0){
        $('#'+platform+'_'+type).append("<div id='"+d+"' class='alert-success col-md-5' style='margin-top:10px;display:none;border-style:solid;border-color:#f1f1f1;border-width:2px;'></div>");
    }
    if($('#'+id+' div').length==0){
        jQuery.each(obj, function(key,val){
            if (key != 'openstack:image'){
                $('#'+id).append("<div>"+key.replace('@','')+": "+val+"</div>");
            }
        });
    }
}
function toogle_div(platform, value, type){
    $("#"+platform+"_add").show();
    // show the add button only if image is selected
    if($("#"+platform+"_selectImage").val()!=null && $("#"+platform+"_selectImage").val()!=0 && value!=0){
        $("#"+platform+"_add_button").show();
    }else{
        $("#"+platform+"_add_button").hide();
    }
    $("[id^='"+platform+"_"+type+"_"+"']").hide();
    d = platform+'_'+type+'_'+value;
    d = d.replace(/ /g, '');
    id = d.replace( /(:|\.|\[|\])/g, "\\$1" );
    $('#'+id).show();
}
function render_cloud(platform, node){
    elm = document.getElementById(platform+'_select');
    //newElement = document.createElement('p');
    //elm.appendChild(newElement); 
    global_list[platform]={};
    if('openstack:sliver' in node){
        selectFlavor = document.createElement('select');
        selectFlavor.id = platform+"_selectFlavor";
        selectFlavor.name = platform+"_selectFlavor";
        selectFlavor.onchange = function(){
            /* 1) Display corresponding Flavor div - hide others - reset selectImage value */
            $("#"+platform+"_selectImage option[value=0]").prop('selected', true);
            toogle_div(platform, this.value, 'flavor');
            /* 3) Disable Images, Enable only compatible ones in selectImage */
            $("[id^='"+platform+"_image_"+"']").hide();
            $("#"+platform+"_selectImage option").attr("disabled",true);
            $.each(global_list[platform][this.value], function (i,v){
                $("#"+platform+"_selectImage option[value='" + v + "']").attr("disabled",false);
            });
            $("#"+platform+"_selectImage").attr("disabled",false);
        }
        var option = document.createElement("option");
        option.text = "-- select a flavor --";
        option.value = 0;
        selectFlavor.appendChild(option);
        jQuery.each( node['openstack:sliver'], function( i, sliver ) {
            if('openstack:flavor' in sliver){
                f = render_option(sliver['openstack:flavor']);
                selectFlavor.appendChild(f);
                flavor = sliver["openstack:flavor"];
                /* 1) create hidden div to explain caracteristics of the flavor */
                render_description(platform, flavor, 'flavor');
                flavor_name = flavor['@name'];
                global_list[platform][flavor_name]=[];
                if ("openstack:image" in flavor){
                    selectImage = document.createElement('select');
                    selectImage.id = platform+"_selectImage";
                    selectImage.name = platform+"_selectImage";
                    selectImage.onchange = function(){
                        /* 2) display corresponding Image div - hide others */
                        toogle_div(platform, this.value, 'image');
                    }
                    var option = document.createElement("option");
                    option.text = "-- select an image --";
                    option.value = 0;
                    selectImage.appendChild(option);
                    if(flavor["openstack:image"] instanceof Array){
                        jQuery.each( flavor["openstack:image"], function( i, img ) {
                           image = render_option(img);
                           image.disabled = true;
                           selectImage.appendChild(image);
                           /* 2) create hidden div to explain caracteristics of the image */
                           render_description(platform, img, 'image');
                           global_list[platform][flavor_name].push(img['@name']);
                        });
                    }else{
                        image = render_option(flavor["openstack:image"]);
                        image.disabled = true;
                        selectImage.appendChild(image);
                        /* 2) create hidden div to explain caracteristics of the image */
                        render_description(platform, flavor["openstack:image"], 'image');
                        global_list[platform][flavor_name].push(flavor['openstack:image']['@name']);
                    }
                }

            }
        });
        elm.appendChild(selectFlavor); 
        elm.appendChild(selectImage); 
    }
    $("#"+platform+"_selectFlavor").css("width","100px");
    $("#"+platform+"_selectFlavor").css("height","30px");
    $("#"+platform+"_selectImage").css("width","30px");
    $("#"+platform+"_selectImage").css("height","30px");
}
function is_finished(len_platforms, pf_status){
    if(len_platforms == pf_status){
        return true;
    }else{
        return false;
    }
}
function sliver_name_exists(sliver_name){
    if(sliver_name in added_nodes){
        return true;
    }
    /*
    if (sliver_name in deleted_nodes){
        return true;
    }
    */
    return false;
}
function find_sliver_name(sliver_name, num){
    for (j=Object.keys(added_nodes).length; j<Object.keys(added_nodes).length+num; i++){
        vm_name = sliver_name+'_'+j;
        if(!sliver_name_exists(vm_name)){
            return vm_name
        }
    }
}

function send_add(platform){ 
    $('#'+platform+'_pending_add').show();
    sliver_name = $('#'+platform+'_sliver_name').val();
    sliver_name = sliver_name.replace(' ','_');
    flavor_name = $('#'+platform+'_selectFlavor').val();
    image_name = $('#'+platform+'_selectImage').val();

    num = $('#'+platform+'_number').val();
    if (num > 1){
        for (i = 0; i < num; i++){
            // XXX Check if the name already exist in existing VMs and added_nodes
            vm_name = sliver_name+"_"+i;
            if (sliver_name_exists(vm_name)){
                vm_name = find_sliver_name(sliver_name, num);
            }
            node = get_node(vm_name, flavor_name, image_name);
            request_rspec['rspec']['node'].push(node);
            render_node(platform, node, 'pending_add');
            added_nodes[vm_name]=node;
        }
    }else{
        if (sliver_name_exists(sliver_name)){
            sliver_name = find_sliver_name(sliver_name, num);
        }
        node = get_node(sliver_name, flavor_name, image_name);
        request_rspec['rspec']['node'].push(node);
        render_node(platform, node, 'pending_add');
        added_nodes[sliver_name]=node;
    }
    toogle_div(platform, flavor_name, 'flavor');
    toogle_div(platform, image_name, 'image');
    flavor_name = $('#'+platform+'_selectFlavor').val(0);
    image_name = $('#'+platform+'_selectImage').val(0);
    $('#'+platform+'_add').hide();
    $('#'+platform+'_add_button').hide();
    $('#'+platform+'_div_pending').show();
    console.log(request_rspec);
    //jQuery('#'+platform+'_form_delete').submit();
}
function get_node(vm_name, flavor_name, image_name){
        var node = {};
        if(ad_rspec['rspec']['node'] instanceof Array) {
            // Deep copy of the Array to avoid reference
            node = jQuery.extend(true, {}, ad_rspec['rspec']['node'][0]);
        }else{
            // Deep copy of the Array to avoid reference
            node = jQuery.extend(true, {}, ad_rspec['rspec']['node']);
        }
        if(node['openstack:sliver'] instanceof Array) {
            node['openstack:sliver'] = node['openstack:sliver'][0];
        }
        node['openstack:sliver']['@sliver_name'] = vm_name;
        console.log(vm_name);

        if(node['openstack:sliver']['openstack:flavor'] instanceof Array) {
            node['openstack:sliver']['openstack:flavor'] = node['openstack:sliver']['openstack:flavor'][0];
        }
        node['openstack:sliver']['openstack:flavor'] = Array();
        node['openstack:sliver']['openstack:flavor'] = {'@name':flavor_name,'openstack:image':{'@name':image_name}};

        $.each(node['openstack:sliver']['openstack:security_group'], function(i, group){
            if(group['@name']=='default'){
                node['openstack:sliver']['openstack:security_group'] = group;
                return false;
            }
        });
        return node;

}
function send_delete(platform, sliver_name){
    $('#'+platform+'_pending_delete').show();
    jQuery('#'+platform+'_vm').val(sliver_name);
    jQuery('#'+platform+'_existing_'+sliver_name).hide();
    node = remove_node_from_request_rspec(sliver_name);
    deleted_nodes[sliver_name]=node;
    render_node(platform, node, 'pending_delete');
    $('#'+platform+'_div_pending').show();
    console.log(request_rspec);
}
function remove_node_from_request_rspec(sliver_name){
    var save_node = Array();
    jQuery.each( request_rspec['rspec']['node'], function( i, node ) {
        if(node['openstack:sliver']['@sliver_name']==sliver_name){
            request_rspec['rspec']['node'].splice(i,1);
            save_node = node;
            return false;
        }
    });
    return save_node;
}
function cancel_add(platform,sliver_name){
    // remove the canceled node from the pending list
    $('#'+platform+'_pending_add_'+sliver_name).remove();
    // remove the canceled node from the request rspec
    node = remove_node_from_request_rspec(sliver_name);
    delete added_nodes[sliver_name];
    // hide the pending div if there are no more nodes
    if ($('#'+platform+'_pending_add div').length==0){
        $('#'+platform+'_pending_add').hide();
        if ($('#'+platform+'_pending_delete div').length==0){
            $('#'+platform+'_div_pending').hide();
        }
    }
}
function cancel_delete(platform,sliver_name){
    // display the canceled node back in existing nodes
    $('#'+platform+'_existing_'+sliver_name).show();
    // remove the canceled node from the pending list
    $('#'+platform+'_pending_delete_'+sliver_name).remove();
    // Cancel the deletion of an existing node -> push it back to the request rspec
    request_rspec['rspec']['node'].push(deleted_nodes[sliver_name]);
    delete deleted_nodes[sliver_name];
    // hide the pending div if there are no more nodes
    if ($('#'+platform+'_pending_delete div').length==0){
        $('#'+platform+'_pending_delete').hide();
        if ($('#'+platform+'_pending_add div').length==0){
            $('#'+platform+'_div_pending').hide();
        }
    }
}

function public_ip(platform,sliver_name,is_public){
    // XXX Change ip status in request_rspec
    if(is_public){
        // external_ip="true"
        node = remove_node_from_request_rspec(sliver_name);
        node['external_ip']="true";
        added_nodes[sliver_name]['external_ip']="true";
        request_rspec['rspec']['node'].push(node);        
    }else{
        console.log(sliver_name+' NOT public ');
        // external_ip="false"
        node = remove_node_from_request_rspec(sliver_name);
        node['external_ip']="false";
        added_nodes[sliver_name]['external_ip']="false";
        request_rspec['rspec']['node'].push(node);        
    }
}

function render_node(platform, node, state){
    if('openstack:sliver' in node){
        sliver = node['openstack:sliver']
        var d = platform+'_'+state+'_'+sliver['@sliver_name'];
        d = d.replace(/ /g, '');
        id = d.replace( /(:|\.|\[|\])/g, "\\$1" );
        $("#"+platform+"_"+state).append("<div id='"+platform+'_'+state+'_'+sliver['@sliver_name']+"' class='row'></div>");
        //$("#"+id).append("<input type='hidden' name='"+platform+"_"+sliver['@sliver_name']+"' value='"+sliver['@sliver_name']+"'>");
        if(state=='pending_add'){
            $("#"+id).append("<div class='col-md-1' style='margin-left:0px;!important;'><input type='checkbox' id='publicip_"+platform+"_"+sliver['@sliver_name']+"' onclick=public_ip('"+platform+"','"+sliver['@sliver_name']+"',this.checked);></div>");
        }else{
            $("#"+id).append("<div class='col-md-1' style='margin-left:0px;!important;'>&nbsp;</div>");
        }
        $("#"+id).append("<div class='col-md-2' style='padding-left:0px;'>"+sliver['@sliver_name']+"</div>");
        $("#"+id).append("<div class='col-md-3'>"+sliver['openstack:flavor']['@name']+"</div>");
        $("#"+id).append("<div class='col-md-3'>"+sliver['openstack:flavor']['openstack:image']['@name']+"</div>");

        if(state=='existing'){
            $("#"+id).append("<div class='col-md-1'><input id='"+platform+"_delete_"+sliver['@sliver_name']+"' type='submit' form='"+platform+"_form_delete' value='Delete' onclick=send_delete('"+platform+"','"+sliver['@sliver_name']+"');></div>");
        }else if(state=='pending_add'){
            $("#"+id).append("<div class='col-md-1'><input id='"+platform+"_cancel_"+sliver['@sliver_name']+"' type='submit' form='"+platform+"_form_cancel' value='Cancel' onclick=cancel_add('"+platform+"','"+sliver['@sliver_name']+"');></div>");
        }else if (state=='pending_delete'){
            $("#"+id).append("<div class='col-md-1'><input id='"+platform+"_cancel_"+sliver['@sliver_name']+"' type='submit' form='"+platform+"_form_cancel' value='Cancel' onclick=cancel_delete('"+platform+"','"+sliver['@sliver_name']+"');></div>");
        }else{
            console.log("state: "+state+" not impemented");
        }
        /*
        sliver['openstack:address']
        sliver['openstack:flavor']
        */
    }
}

function allocate(platform, slicename){
    $.post("/sfa/Allocate",{'hrn':slicename, 'type':'slice', 'platform':[platform], 'rspec':JSON.stringify(request_rspec)}, function( result ) {
        console.log(result);
        clear_data(platform);
        load_data(platform,slicename);
        mysliceAlert('Success: changes applied','success', true);
    });
}
function clear_data(platform){
    $('#'+platform+'_existing').children().remove();
    $('#'+platform+'_pending_delete').children().remove();
    $("#"+platform+"_selectFlavor").remove();
    $("#"+platform+"_selectImage").remove();
    $('#'+platform+'_pending_add').children().remove();
    $('#'+platform+'_div_pending').hide();
}
function load_data(platform, slicename){
    var platform_status = Array();
    var platform_empty = Array();

    $.post("/sfa/Describe",{'hrn':slicename, 'type':'slice', 'platform':[platform]}, function( d ) {
        data = d;
        console.log(data);
        if('parsed' in data[platform] && 'rspec' in data[platform]['parsed']){
           manifest_rspec = data[platform]['parsed']['rspec'];
           request_rspec = data[platform]['parsed'];
           request_rspec['rspec']['@type']='request';
           if('node' in manifest_rspec){
               if(manifest_rspec['node'] instanceof Array) {
                   jQuery.each( manifest_rspec['node'], function( i, node ) {
                       render_node(platform,node, 'existing');
                   });
               }else{
                   render_node(platform,manifest_rspec['node'], 'existing');
               }
               $('#'+platform+'_existing').show();
           }
        }
    });
    $.post("/sfa/ListResources",{'platform':[platform]}, function( d ) {
        //$.extend(data,d);
        //console.log(data);
        if('parsed' in d[platform] && 'rspec' in d[platform]['parsed']){
           ad_rspec = d[platform]['parsed'];
           if('node' in ad_rspec['rspec']){
               if(ad_rspec['rspec']['node'] instanceof Array) {
                   jQuery.each( ad_rspec['rspec']['node'], function( i, node ) {
                       render_cloud(platform,node);
                   });
               }else{
                   render_cloud(platform,ad_rspec['rspec']['node']);
               }
           }else{
               platform_empty.push(platform);
           }
        }else{
            platform_empty.push(platform);
        }
        platform_status.push(platform);
        if(is_finished(len_platforms,platform_status.length)){
            $("#loading").hide();
            if(platform_empty.length == len_platforms){
                $("#warning_message").show();
            }
        }
    });
}
$(document).ready(function() {
{% for platform in platforms %}
    {% if platform in cloud_platforms %}
    load_data('{{platform}}', '{{slicename}}');
    {% endif %}
{% endfor %}
});
</script>
{% endblock %}

{% block content %}
{{post_values}}
{% for platform in platforms %}
    {% if platform in cloud_platforms %}
    <div style="padding-left:20px;padding-top:20px;padding-right:20px;padding-bottom:20px;border-style:solid;border-width:1px;width:700px;">
        <h2>{{ platform }}</h2>
        // display only if VMs already in slice
        <h4>VMs in slice {{slicename}}</h4>
        <form id="{{platform}}_form_delete" method="post">
        {% csrf_token %}
        <div id="{{platform}}_existing" class="row alert alert-info" style="display:none;">
        <input type="hidden" name="{{platform}}_vm" id="{{platform}}_vm">
        <input type="hidden" name="action" id="action" value="delete">
        <input type="hidden" name="platform" id="platform" value="{{platform}}">
        </div> 
        </form>
        <h4><a href="#" onclick="$('#{{platform}}_div_add').toggle();"><span class="glyphicon glyphicon-plus" aria-hidden="true"></span> Create new VMs</a></h4>
        <div id="{{platform}}_div_add" class="alert" style="background-color:#f1f1f1;display:none;margin-bottom:0px !important;padding-bottom:6px !important;">
        <form id="{{platform}}_form_add" method="post" class="form-inline">
        {% csrf_token %}
        <div id="{{platform}}_input" class="row">
            <div class="col-md-1"></div>
            <div class="col-md-3"><label for="{{platform}}_number">number:</label>
            <input type="text" maxlength="2" id="{{platform}}_number" name="{{platform}}_number" style="width:2.2em;min-width:2.2em;height:30px;" value="1" class="form-control" required>
            </div>
            <div class="col-md-8"><label for="{{platform}}_sliver_name">name:</label>
            <div class="form-group">
            <input type="text" name="{{platform}}_sliver_name" id="{{platform}}_sliver_name" value="VM" maxlength="12" class="form-control" style="height:30px;" required>
            </div>
            </div>
            <div class="col-md-1"></div>
            <div id="{{platform}}_select" class="col-md-11"></div>
        </div>
        <div id="{{platform}}_add" class="row">
            <div class="col-md-1">&nbsp; 
            <input type="hidden" name="action" id="action" value="add">
            <input type="hidden" name="platform" id="platform" value="{{platform}}">
            </div>
        </div>
        <div class="row" style="padding-top:6px;">
            <div class="col-md-1">&nbsp;</div>
            <div class="col-md-11" id="{{platform}}_add_button" style="display:none;">
            <input type="submit" form="{{platform}}_form_add" value="Add" onclick="send_add('{{platform}}');">
            </div>
        </div>
        </form>
        </div>
        <br>
        <div id="{{platform}}_div_pending" style="display:none;">
        // display only pending changes
        <h4>Pending changes</h4>
        <form id="{{platform}}_form_reserve" method="post">
        {% csrf_token %}
        <div id="{{platform}}_pending_add" class="row alert alert-success" style="display:none;margin-bottom:3px !important;"></div> 
        <div id="{{platform}}_pending_delete" class="row alert alert-danger" style="display:none;margin-bottom:3px !important;"></div> 
        <br>
        <input type="hidden" name="action" id="action" value="reserve">
        <input type="hidden" name="platform" id="platform" value="{{platform}}">
        <input type="submit" form="{{platform}}_form_reserve" value="Apply changes" onclick="allocate('{{platform}}','{{slicename}}');">
        </form>
        </div>
    </div>
    {% endif %}
{% endfor %}
{% endblock %}