{% extends 'base.html' %}
{% load static %}
{% load i18n %}
{% load bootstrap3 %}

{% block custom_head_css_js %}
    <link href="{% static 'css/plugins/ztree/awesomeStyle/awesome.css' %}" rel="stylesheet">
    <script type="text/javascript" src="{% static 'js/plugins/ztree/jquery.ztree.all.min.js' %}"></script>
    <script type="text/javascript" src="{% static 'js/plugins/ztree/jquery.ztree.exhide.min.js' %}"></script>
    <script src="{% static 'js/jquery.form.min.js' %}"></script>
    <script src="{% static 'js/plugins/xterm/xterm.js' %}"></script>
    <link rel="stylesheet" href="{% static 'js/plugins/xterm/xterm.css' %}" />
    <script src="{% static 'js/plugins/xterm/addons/fit/fit.js' %}"></script>
    <script src="{% static 'js/plugins/codemirror/codemirror.js' %}"></script>
    <script src="{% static 'js/plugins/codemirror/mode/shell/shell.js' %}"></script>
    <link href="{% static 'css/plugins/codemirror/codemirror.css' %}" rel="stylesheet">
    <link href="{% static 'css/plugins/codemirror/ambiance.css' %}" rel="stylesheet">
    <link href="{% static 'css/plugins/select2/select2.min.css' %}" rel="stylesheet">
    <script src="{% static 'js/plugins/select2/select2.full.min.js' %}"></script>
	<style type="text/css">
        .xterm .xterm-screen canvas {
            position: absolute;
            left: 0;
            top: 0;
            padding: 10px;
        }
        .select2-container .select2-selection--single {
            height: 34px;
        }
	</style>
{% endblock %}

{% block content %}
<div class="wrapper wrapper-content">
   <div class="row">
       <div class="col-lg-3" id="split-left" style="padding-left: 3px">
           <div class="ibox float-e-margins">
               <div class="ibox-content mailbox-content" style="padding-top: 0;padding-left: 1px">
                   <div class="file-manager ">
                       <div id="assetTree" class="ztree"></div>
                       <div class="clearfix"></div>
                   </div>
               </div>
           </div>
       </div>
       <div class="col-lg-9 animated fadeInRight" id="split-right">
           <div class="tree-toggle">
               <div class="btn btn-sm btn-primary tree-toggle-btn" onclick="toggle()">
                   <i class="fa fa-angle-left fa-x" id="toggle-icon"></i>
               </div>
           </div>
           <div class="mail-box-header" style="padding-top: 5px;">
               <form enctype="multipart/form-data" method="post" class="form-horizontal" action="" onsubmit="return execute()">
                   <div class="form-group">
                       <div id="term" style="height: 100%;width: 100%"></div>
                   </div>
                   <div class="row">
                       <div class="col-lg-10">
                       <div class="input-group" style="height: 100%; width: 100%">
                           <textarea class="form-control" id="command-text"></textarea>
                       </div>
                       </div>
                       <div class="col-lg-2">
                            <select class="select2 form-control" id="system-users-select">
                            {% for s in system_users %}
                               {% if s.protocol == 'ssh' and s.login_mode == 'auto' %}
                                   <option value="{{ s.id }}">{{ s }}</option>
                               {% endif %}
                            {% endfor %}
                            </select>
                           <button type="button" class="btn btn-primary btn-execute" style="margin-top: 30px; width: 100%">{% trans 'Go' %}</button>
                       </div>
                   </div>
                </form>
           </div>
       </div>
   </div>
</div>
{% endblock %}

{% block custom_foot_js %}
<script>
var zTree, show = 0;
var systemUserId = null;

function initTree() {
    var setting = {
        check: {
            enable: true
        },
        view: {
            dblClickExpand: false,
            showLine: true
        },
        data: {
            simpleData: {
                enable: true
            }
        },
        edit: {
            enable: true,
			showRemoveBtn: false,
			showRenameBtn: false,
            drag: {
                isCopy: true,
                isMove: true
            }
        },
        callback: {
            onCheck: onCheck
        }
    };
    var url = "{% url 'api-perms:my-nodes-assets-as-tree' %}";
    if (systemUserId) {
        url += '?system_user=' + systemUserId
    }

    $.get(url, function(data, status){
        $.fn.zTree.init($("#assetTree"), setting, data);
        zTree = $.fn.zTree.getZTreeObj("assetTree");
    });
}

function getSelectedAssetsNode() {
    var nodes = zTree.getCheckedNodes(true);
    var assetsNodeId = [];
	var assetsNode = [];
	nodes.forEach(function (node) {
	    if (node.meta.type === 'asset' && !node.isHidden && node.meta.asset.protocol === 'ssh') {
	        if (assetsNodeId.indexOf(node.id) === -1) {
	            assetsNodeId.push(node.id);
                assetsNode.push(node)
            }
        }
    });
	return assetsNode;
}

function onCheck(e, treeId, treeNode) {
    var nodes = getSelectedAssetsNode();
    var nodes_names = nodes.map(function (node) {
        return node.name;
    });
    var message = "{% trans 'Selected assets' %}" + ': ';
	message += nodes_names.join(", ");
	message += "\r\n";
    message += "{% trans 'In total' %}" + ': ' + nodes_names.length + "个\r\n";
	term.clear();
	term.write(message)
}

function toggle() {
    if (show === 0) {
        $("#split-left").hide(500, function () {
            $("#split-right").attr("class", "col-lg-12");
            $("#toggle-icon").attr("class", "fa fa-angle-right fa-x");
            show = 1;
        });
    } else {
        $("#split-right").attr("class", "col-lg-9");
        $("#toggle-icon").attr("class", "fa fa-angle-left fa-x");
        $("#split-left").show(500);
        show = 0;
    }
}

var term = null;

function initResultTerminal() {
    term = new Terminal({
        cursorBlink: false,
        screenKeys: false,
        fontFamily: '"Consolas", "monospace"',
        fontSize: 14,
        rightClickSelectsWord: true,
        disableStdin: true,
        theme: {
          background: '#1f1b1b'
        }
    });
    term.open(document.getElementById('term'));
    term.write("{% trans 'Select the left asset, select the running system user, execute command in batch' %}" + "\r\n")
}

function wrapperError(msg) {
    return '\033[31m' + msg + '\033[0m' + '\r\n';
}

function execute() {
    if (!term) {
        initResultTerminal()
    }
    var url = '{% url "api-ops:command-execution-list" %}';
    var run_as = systemUserId;
    var command = editor.getValue();
    var hosts = getSelectedAssetsNode().map(function (node) {
        return node.id;
    });
    if (hosts.length === 0) {
        term.write(wrapperError("{% trans 'Unselected assets' %}"));
        return
    }
    if (!command) {
        term.write(wrapperError("{% trans 'No input command' %}"));
        return
    }
    if (!run_as) {
        term.write(wrapperError("{% trans 'No system user was selected' %}"));
        return
    }
    var data = {
        hosts: hosts,
        run_as: run_as,
        command: command
    };
    var mark = '';
    var log_url = null;
    var end = false;
    var error = false;
    var int = null;
    var interval = 200;

    function writeExecutionOutput() {
        if (!end) {
            $.ajax({
                url: log_url + '?mark=' + mark,
                method: "GET",
                contentType: "application/json; charset=utf-8"
            }).done(function(data, textStatue, jqXHR) {
                if (jqXHR.status === 203) {
                    error = true;
                    term.write('.');
                    interval = 500;
                }
                if (jqXHR.status === 200){
                    term.write(data.data);
                    mark = data.mark;
                    if (data.end){
                        end = true;
                        window.clearInterval(int)
                    }
                }
            })
        }
    }

    APIUpdateAttr({
        url: url,
        body: JSON.stringify(data),
        method: 'POST',
        flash_message: false,
        success: function (resp) {
            term.write("{% trans 'Pending' %}" + "...\r\n");
            log_url = resp.log_url;
            int = setInterval(function () {
                writeExecutionOutput()
            }, interval);
        }
    });
    return false;
}

var editor;
$(document).ready(function(){
    systemUserId = $('#system-users-select').val();
    $(".select2").select2({
        dropdownAutoWidth : true,
    }).on('select2:select', function(evt) {
         var data = evt.params.data;
         systemUserId = data.id;
         initTree();
    });
    editor = CodeMirror.fromTextArea(document.getElementById("command-text"), {
        lineNumbers: true,
        lineWrapping: true,
        mode: "shell"
    });
    editor.setSize(600, 100);
    var charWidth = editor.defaultCharWidth(), basePadding = 4;
    editor.on("renderLine", function(cm, line, elt) {
        var off = CodeMirror.countColumn(line.text, null, cm.getOption("tabSize")) * charWidth;
        elt.style.textIndent = "-" + off + "px";
        elt.style.paddingLeft = (basePadding + off) + "px";
    });
    editor.refresh();
    initTree();
    initResultTerminal();
}).on('click', '.btn-execute', function () {
    execute()
})
</script>
{% endblock %}