{% extends "webpage/base.html" %}
{% load staticfiles %}
{% block content %}

    <link href="/static/vis/css/main.css" rel="stylesheet" type="text/css">

    <script src="/static/vis/js/tree_new.js"></script>
    <script src="/static/vis/js/autocomplete.js"></script>

    <script src="/static/vis/js/d3.js"></script>
    <link href="/static/vis/css/style.css" rel="stylesheet" type="text/css">
    <link href="/static/vis/css/autocomplete.css" rel="stylesheet" type="text/css">

    <script src="https://unpkg.com/canvg@3.0.1/lib/umd.js"></script>

    <script src="https://sharonchoong.github.io/svg-exportJS/svg-export.min.js"></script>

    <script src="https://cdn.jsdelivr.net/npm/pdfkit@0.11.0/js/pdfkit.min.js"></script>
    <script src="https://github.com/devongovett/blob-stream/releases/download/v0.1.3/blob-stream.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/svg-to-pdfkit@0.1.8/source.min.js"></script>

    <div id="vis_content">
        <div id="tree">
        </div>
    </div>

    <div id="tooltip"></div>
    <div class="info_card" id="graph_card">
        <div id="tab">
            <button class="tablinks" class="toolbox" id="graph_info_tab_style" onclick="showTab('graph_info_tab')">Graph</button>
            <button class="tablinks" class="toolbox" id="graph_display_tab_style" onclick="showTab('graph_display_tab')">Display</button>
            <button class="tablinks" class="toolbox" id="graph_selection_tab_style"  onclick="showTab('graph_selection_tab')">selection</button>
        </div>
        <div class="tabcontent" id="graph_info_tab">
            <table class="card_table" id="table_graph">

            </table>
        </div>
        <div class="tabcontent" id="graph_display_tab">
            <div class="graph_toolbar_content">
                <label for="button_hide_labels" class="toolbar_label">Labels</label>
                <div>
                    <button id="button_hide_labels" class="toolbar" onclick="switch_label_visibility()" type="Button">on
                    </button>
                </div>
            </div>
            <div class="graph_toolbar_content">
                <label for="button_orientation" class="toolbar_label">Graph</label>
                <div>
                    <button id="button_orientation" class="toolbar" onclick="switchOrientation()" type="Button">vertical
                    </button>

                </div>
            </div>
            <div class="graph_toolbar_content">
                <label id="colorTypeLabel"  class="toolbar_label">Nodes</label>

                <div id="node_color_examples">

                </div>
            </div>

            <div class="graph_toolbar_content">
                <div id="slider_div">
                    <div>
                        <label for="slidecontainer" class="toolbar_label">Depth</label>
                        <div id="slidecontainer" class="slider_label"></div>
                    </div>
                    <div>
                        <label for="textslide" class="toolbar_label">Labels</label>
                        <div id="textslide" class="slider_label"><input type="range" id="textRange" min="12" max="34"
                                                                        step="1" value="12"></div>
                    </div>
                </div>
            </div>
        </div>
        <div class="tabcontent"   id="graph_selection_tab">
        <table class="card_table" id="table_selection">
{#            <label id="selection_header">Info on Selected Entity</label>#}

        </table>
    </div>

    </div>



    <div id="vis_toolbar">
        <div id="vis_toolbar_left">
            <div id="search_upper">
                <input id="input_search" name="input_search" placeholder="search for entity"
                       type="search">
                <button id="button_submit" onclick="send_request()" type="Button">create</button>
            </div>
            <div id="search_lower">
                <div id="selections_div">
                    <select id="graph_options"  name="graph_options">
                    </select>

                </div>
                <div>
                    <select id="direction_select"  name="direction_select">
                        <option value="down">create hierarchy downwards</option>
                        <option value="up">create hierarchy upwards</option>
                    </select>
                </div>
            </div>
        </div>


        <!--<div id="test_search"> {% csrf_token %} {{form}} <input type="submit"></div>-->

        <div id="dots_div">
            <div>
                <label id="loading_text" width="200">loading</label>
            </div>
            <!--        <div>        <div id="dot-flashing">-->
            <!--</div>-->
        </div>

        <div id="window_toolbar" width="auto">

            <div class="window_toolbar_content">
                <label for="button_hide_graphbox" class="w_toolbar_label">Info-Box</label>
                <div>
                    <button id="button_hide_graphbox" class="toolbar" onclick="hideGraphBox()">visible</button>
                </div>
            </div>
            <div class="window_toolbar_content">
                <label for="button_hide_top_nav" class="w_toolbar_label">Header</label>
                <div>
                    <button id="button_hide_top_nav" class="toolbar" onclick="hideTopNav()">visible</button>
                </div>
            </div>
             <div class="window_toolbar_content">
                <label for="button_download_svg" class="w_toolbar_label">Download</label>
                <div>
                    <button id="button_download_svg" class="toolbar" onclick="download_svg()">SVG</button>
                </div>
            </div>
        </div>
    </div>


    <!--    <div id="div_download">-->
    <!--<button id="button_download_svg" onclick="download_svg()">Download as SVG</button>-->
    <!--<button id="button_download_png" onclick="download_png()">Download as PNG</button>-->
    <!--<button id="button_download_jpeg" onclick="download_jpeg()">Download as JPEG</button>-->
    <!--    </div>-->
    <script>

        let navbarVisible = true;
        let individualNodeColors;
        let horizontal = false;
        let firstCall = true;
        let boxVisibility;

        function hideGraphBox() {
            let box = d3.select("#graph_card");
            let button = d3.select("#button_hide_graphbox");
            if (firstCall){
                boxVisibility = "hidden";
                firstCall = false;
            } else {
                boxVisibility = box.style("visibility");
            }
            if (boxVisibility === "visible") {
                box.style("visibility", "hidden");
                box.selectAll("button").style("transition", "0s");
                box.selectAll("*").style("visibility", "hidden");
                button.html("hidden");
                boxVisibility = box.style("visibility");

            } else {
                box.style("visibility", "visible");
                box.selectAll("button").style("transition", "0.3s");

                box.selectAll("*").style("visibility", "visible");
                boxVisibility = box.style("visibility");
                if (!makeTree.displayed_ent) {
                    d3.select("#graph_selection_tab_style").style("visibility", "hidden").style("transition", "0s");
                }

                button.html("visible");
            }
        }


        function switchOrientation() {
            if (horizontal) {
                horizontal = false;
                makeTree.update();
            } else {
                horizontal = true;
                makeTree.update();
            }
        }

        let last_tab;
        function showTab(tabName){
            // show which button is active, by styling it differently in here
            // switch content
            ///*oben, rechts, unten, links.*/

            if (last_tab){
                last_tab.style("background-color", "#f1f1f1").style("color", "black");
            }
            last_tab = d3.select(`#${tabName}_style`);
            d3.select(`#${tabName}_style`).style("background-color", "steelblue").style("color", "white");

            d3.selectAll(".tabcontent").style("display", "none");
            d3.select(`#${tabName}`).style("display", "flex");
        }

        // todo: note: i think i can make elements disappear by settings display to none instead of visibility to hidden

        function hideTopNav() {
            let graphCard = d3.select("#graph_card");
            let toolbar = d3.select("#vis_toolbar");
            let navbar = d3.select("#wrapper-navbar");
            let button = d3.select("#button_hide_top_nav");
            if (navbar.style("visibility") === "visible") {
                navbar.style("visibility", "hidden");
                toolbar.style("top", "0px");
                navbarVisible = false;
                button.html("hidden");
                graphCard.style("top","132px");
            } else {
                navbar.style("visibility", "visible");
                toolbar.style("top", "88px");
                graphCard.style("top","220px");

                navbarVisible = true;
                button.html("visible");


            }
        }

        //     pattern = /entity_type/pk/graph_option/direction
        let labelVisState = true;
        let labelHighlight = false;

        function switch_label_highlight() {
            if (labelHighlight) {
                labelHighlight = false;
            } else {
                labelHighlight = true;
            }
        }

        function switch_label_visibility() {
            let text_attr = d3.selectAll(".node text");
            let button = d3.select("#button_hide_labels");

            if (text_attr.style("visibility") === "visible") {
                text_attr.style("visibility", "hidden");
                labelVisState = false;
                button.html("off");
            } else {
                text_attr.style("visibility", "visible");
                labelVisState = true;
                button.html("on");
            }
        }

        let dot_anim = document.getElementById("dots_div");
        let selectionDATA = null;
        let submitButton = d3.select("#button_submit")

        // store last request in var; to not load the same data again;
        let last_request;

        //make request from here: viecpro_hierarchy/api/json/query_method/data/style/direction
        async function send_request(req) {
            if (!req) {
                // var entity = document.getElementById("input_search").value;
                // // Refactor to accept additional arguements from selectionDATA (name, type, pk)
                // req = `http://127.0.0.1:8000/viecpro_hierarchy/api/json/query_method/${entity}/style/direction`;

                let ent = selectionDATA[0];
                let type = selectionDATA[1];
                let pk = selectionDATA[2];
                let direction = d3.select("#direction_select").property("value");
                let options = d3.select("#graph_options").property("value");
                if (!options) {
                    options = "normal";
                }


// /entity_type/pk/graph_option/direction
                req = `http://127.0.0.1:8000/visualisations/api/${type}/${pk}/${options}/${direction}`;
            }
            ;


            if (last_request !== req) {
                dot_anim.style.visibility = "visible";


                await fetch(req).then(function (d) {
                    if (!d.ok) {
                        dot_anim.style.visibility = "hidden";

                        alert("Query Failed WHYYYY")

                        return false
                    } else {
                        let data = d.text();

                        return data
                    }
                }).then(function (d) {
                    if (d) {
                        makeTree(d);
                        //document.getElementById("selection_card").visibility = "hidden";
                        showTab("graph_display_tab");
                        dot_anim.style.visibility = "hidden";
                        input.value = "";
                        show_graph_options({});
                        if (firstCall){
                              hideGraphBox();
                        }
                        d3.select("#graph_options")


                        last_request = req;
                    }
                }).catch((err) => {
                    dot_anim.style.visibility = "hidden";
                    alert(`Query Failed - Try Again\n${err}`)
                });
            } else {
                dot_anim.style.visibility = "hidden";

            }
        }

        function download_svg() {

            let test = document.getElementById("tree");
            svgExport.downloadSvg(
                test, // SVG DOM Element object to be exported. Alternatively, a string of the serialized SVG can be passed
                makeTree.graphRoot, // chart title: file name of exported image
                {width: 1000, height: 1000} // options (optional, please see below for a list of option properties)
            );
        };

        function download_png() {
            let test = document.getElementById("tree").outerHTML;
            let svg_string = test.replace(">", ">"); // need to add css here

            svgExport.downloadPng(test, "chart title name", {
                height: 3000, width: 3000, scale: 5, useCSS:true
            });
        }

        function download_jpeg() {
            let test = document.getElementById("tree");

            svgExport.downloadJpeg(test, "Viecpro Vis JPEG", {width: 800, height: 1000, useCSS: true});

        }


        let input = document.getElementById("input_search");


        async function suggestions() {
            await fetch("http://127.0.0.1:8000/visualisations/entityautocomplete/", function (d) {
                if (!d.ok) {
                    alert("ERROR\nFailed to load autocomplete data.\n Please try reloading the page.");
                    return false
                } else {

                    return d

                }
            }).then((d) => {
                return d.text()
            }).then((data) => call_auto(data)).catch((err) => {
                    dot_anim.style.visibility = "hidden";
                    alert(err)
                }
            )
        };


        function call_auto(data) {
            let suggestions_data = JSON.parse(data);
            suggestions_data = JSON.parse(suggestions_data);
            global_suggestions = suggestions_data;
            dot_anim.style.visibility = "hidden";
            submitButton.disabled = false;

            autocomplete({
                input: input,
                fetch: function (text, update) {
                    text = text.toLowerCase();
                    // you can also use AJAX requests instead of preloaded data

                    let suggestions = suggestions_data.filter(n => n.label.toLowerCase().startsWith(text))
                    update(suggestions);//.slice(0, 6));
                },
                onSelect: function (item) {
                    input.value = item.label; //item value is array of [e.name, "Institution|Person|Funktion", a.pk]
                    selectionDATA = item.value;
                    show_graph_options(item.value);
                }
            });
        }

        suggestions();
        submitButton.disabled = true;
        dot_anim.style.visibility = "visible";


        function show_graph_options(data) {
            let type = "";
            let select = d3.select("#graph_options");
            let selections_div = d3.select("#selections_div");
            let directionSelect = d3.select("#direction_select");
            if (data) {
                type = data[1];
            }

            if (type === "Institution") {
                select.selectAll("option").remove();
                selections_div.style("visibility", "visible");
                directionSelect.style("visibility", "visible");
                directionSelect.property("value", "down");


                select.append("option").attr("text", "show only institutions").html("show only institutions");
                select.append("option").attr("text", "add functions").html("add functions");
                select.append("option").attr("text", "add functions and persons").html("add functions and persons");
            } else if (type === "Funktion") {
                select.selectAll("option").remove();
                select.append("option").attr("text", "show institution-hierarchy").html("show institution hierarchy");
                select.append("option").attr("text", "show amt and persons").html("show amt and persons");
                selections_div.style("visibility", "visible");
                directionSelect.style("visibility", "hidden");


            } else { //if (type === "Funktion" || type === "Person"){
                select.selectAll("option").remove();
                selections_div.style("visibility", "hidden");
                directionSelect.style("visibility", "hidden");

                select.append("option").attr("text", "normal").html("normal");
            }

        }

        function go_to_entity() {
            window.open(go_to_entity.URL, '_blank').focus();

        }

        go_to_entity.URL = null;
    </script>
{% endblock content %}