{% extends "admin/base_site.html" %}
{% load tags_AKModel %}

{% load i18n %}
{% load l10n %}
{% load tz %}
{% load static %}
{% load tags_AKPlan %}
{% load fontawesome_5 %}

{% block title %}{% trans "Scheduling for" %} {{event}}{% endblock %}

{% block extrahead %}
    {{ block.super }}

    <script>
        document.addEventListener('DOMContentLoaded', function () {
            // CSRF Protection/Authentication
            function getCookie(name) {
                let cookieValue = null;
                if (document.cookie && document.cookie !== '') {
                    const cookies = document.cookie.split(';');
                    for (let i = 0; i < cookies.length; i++) {
                        const cookie = cookies[i].trim();
                        // Does this cookie string begin with the name we want?
                        if (cookie.substring(0, name.length + 1) === (name + '=')) {
                            cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                            break;
                        }
                    }
                }
                return cookieValue;
            }

            const csrftoken = getCookie('csrftoken');

            function csrfSafeMethod(method) {
                // these HTTP methods do not require CSRF protection
                return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
            }

            $.ajaxSetup({
                beforeSend: function (xhr, settings) {
                    if (!csrfSafeMethod(settings.type) && !this.crossDomain) {
                        xhr.setRequestHeader("X-CSRFToken", csrftoken);
                    }
                }
            });

            // (Re-)Load constraint violations using AJAX and visualize using violation count badge and violation table
            function reload() {
                $.ajax({
                       url: "{% url "model:scheduling-constraint-violations-list" event_slug=event.slug %}",
                        type: 'GET',
                        success: function (response) {
                           console.log(response);

                           let table_html = '';

                           if(response.length > 0) {
                               // Update violation count badge
                               $('#violationCountBadge').html(response.length).removeClass('badge-success').addClass('badge-warning');

                               // Update violations table
                               for(let i=0;i<response.length;i++) {
                                   table_html += "<tr><td>" + response[i].level_display + "</td><td>" + response[i].type_display + "</td><td>" + response[i].details + "</td><td>" + response[i].timestamp_display + "</td><td></td></tr>";
                               }
                           }
                           else {
                               // Update violation count badge
                               $('#violationCountBadge').html(0).removeClass('badge-warning').addClass('badge-success');

                               // Update violations table
                               table_html ='<tr class="text-muted"><td colspan="5" class="text-center">{% trans "No violations" %}</td></tr>'
                           }

                           // Show violation list (potentially empty) in violations table
                           $('#violationsTableBody').html(table_html);
                        },
                        error: function (response) {
                           alert("{% trans 'Cannot load current violations from server' %}");
                        }
                   });
            }
            reload();

            // Bind reload button
            $('#btnReloadNow').click(reload);

            // Toggle automatic reloading (every 30 s) based on checkbox
            let autoReloadInterval = undefined;
            $('#cbxAutoReload').change(function () {
                if(this.checked) {
                    autoReloadInterval = setInterval(reload, 30*1000);
                }
                else {
                    if(autoReloadInterval !== undefined)
                        clearInterval(autoReloadInterval);
                }
            });
        });
    </script>
{% endblock extrahead %}

{% block content %}
    <h4 class="mt-4 mb-4"><span id="violationCountBadge" class="badge badge-success">0</span> {% trans "Violation(s)" %}</h4>

    <input type="checkbox" id="cbxAutoReload">
    <label for="cbxAutoReload">{% trans "Auto reload?" %}</label>

    <br>

    <a href="#" id="btnReloadNow" class="btn btn-info">{% fa5_icon "sync-alt" "fas" %} {% trans "Reload now" %}</a>

    <table class="table table-striped mt-4 mb-4">
        <thead>
            <tr>
                <th>{% trans "Violation" %}</th>
                <th>{% trans "Problem" %}</th>
                <th>{% trans "Details" %}</th>
                <th>{% trans "Since" %}</th>
                <th></th>
            </tr>
        </thead>
        <tbody id="violationsTableBody">
        <tr class="text-muted">
            <td colspan="5" class="text-center">
                {% trans "No violations" %}
            </td>
        </tr>
        </tbody>
    </table>

    <a href="{% url 'admin:event_status' event.slug %}">{% trans "Event Status" %}</a>
    &middot;
    <a href="{% url 'admin:schedule' event.slug %}">{% trans "Scheduling" %}</a>
{% endblock %}