{% package main %}

{% import (
    "time"
    "sort"
    "net/http"

    "github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/tpl"
    "github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/utils"
    "github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/notifier"
) %}


{% func Welcome(r *http.Request) %}
    {%= tpl.Header(r, navItems, "vmalert", getLastConfigError()) %}
    <p>
        API:<br>
        {% for _, p := range apiLinks  %}
            {%code p, doc := p[0], p[1] %}
            <a href="{%s p %}">{%s p %}</a> - {%s doc %}<br/>
        {% endfor %}
        {% if r.Header.Get("X-Forwarded-For") == "" %}
            System:<br>
            {% for _, p := range systemLinks  %}
                {%code p, doc := p[0], p[1] %}
                <a href="{%s p %}">{%s p %}</a> - {%s doc %}<br/>
            {% endfor %}
        {% endif %}
    </p>
    {%= tpl.Footer(r) %}
{% endfunc %}

{% func buttonActive(filter, expValue string) %}
    {% if filter != expValue %}
btn-secondary
    {% else %}
btn-primary
    {% endif %}
{% endfunc %}

{% func ListGroups(r *http.Request, originGroups []apiGroup) %}
    {%code prefix := utils.Prefix(r.URL.Path) %}
    {%= tpl.Header(r, navItems, "Groups", getLastConfigError()) %}
        {%code
            filter := r.URL.Query().Get("filter")
            rOk := make(map[string]int)
            rNotOk := make(map[string]int)
            rNoMatch := make(map[string]int)
            var groups []apiGroup
            for _, g := range originGroups {
                var rules []apiRule
                for _, r := range g.Rules {
                    if r.LastError != "" {
                        rNotOk[g.ID]++
                    } else {
                        rOk[g.ID]++
                    }
                    if isNoMatch(r) {
                        rNoMatch[g.ID]++
                    }
                    if (filter == "unhealthy" && r.LastError == "") ||
                       (filter == "noMatch" && !isNoMatch(r)) {
                        continue
                    }
                    rules = append(rules, r)
                }
                if len(rules) > 0 {
                    g.Rules = rules
                    groups = append(groups, g)
                }
            }
        %}
         <a class="btn {%= buttonActive(filter, "") %}" role="button" onclick="window.location = window.location.pathname">All</a>
         <a class="btn btn-primary" role="button" onclick="collapseAll()">Collapse All</a>
         <a class="btn btn-primary" role="button" onclick="expandAll()">Expand All</a>
         <a class="btn {%= buttonActive(filter, "unhealthy") %}" role="button" onclick="location.href='?filter=unhealthy'" title="Show only rules with errors">Unhealthy</a>
         <a class="btn {%= buttonActive(filter, "noMatch") %}" role="button" onclick="location.href='?filter=noMatch'" title="Show only rules matching no time series during last evaluation">NoMatch</a>
        {%  if len(groups) > 0 %}
            {% for _, g := range groups  %}
                  <div
                    class="group-heading{% if rNotOk[g.ID] > 0 %} alert-danger{%endif%}" data-bs-target="rules-{%s g.ID %}">
                    <span class="anchor" id="group-{%s g.ID %}"></span>
                    <a href="#group-{%s g.ID %}">{%s g.Name %}{% if g.Type != "prometheus" %} ({%s g.Type %}){% endif %} (every {%f.0 g.Interval %}s) #</a>
                     {% if rNotOk[g.ID] > 0 %}<span class="badge bg-danger" title="Number of rules with status Error">{%d rNotOk[g.ID] %}</span> {% endif %}
                     {% if rNoMatch[g.ID] > 0 %}<span class="badge bg-warning" title="Number of rules with status NoMatch">{%d rNoMatch[g.ID] %}</span> {% endif %}
                    <span class="badge bg-success" title="Number of rules withs status Ok">{%d rOk[g.ID] %}</span>
                    <p class="fs-6 fw-lighter">{%s g.File %}</p>
                    {% if len(g.Params) > 0 %}
                        <div class="fs-6 fw-lighter">Extra params
                        {% for _, param := range g.Params %}
                                <span class="float-left badge bg-primary">{%s param %}</span>
                        {% endfor %}
                        </div>
                    {% endif %}
                    {% if len(g.Headers) > 0 %}
                        <div class="fs-6 fw-lighter">Extra headers
                        {% for _, header := range g.Headers %}
                                <span class="float-left badge bg-primary">{%s header %}</span>
                        {% endfor %}
                        </div>
                    {% endif %}
                </div>
                <div class="collapse" id="rules-{%s g.ID %}">
                    <table class="table table-striped table-hover table-sm">
                        <thead>
                            <tr>
                                <th scope="col" style="width: 60%">Rule</th>
                                <th scope="col" style="width: 20%" class="text-center" title="How many samples were produced by the rule">Samples</th>
                                <th scope="col" style="width: 20%" class="text-center" title="How many seconds ago rule was executed">Updated</th>
                            </tr>
                        </thead>
                        <tbody>
                        {% for _, r := range g.Rules %}
                            <tr{% if r.LastError != "" %} class="alert-danger"{% endif %}>
                                <td>
                                    <div class="row">
                                        <div class="col-12 mb-2">
                                            {% if r.Type == "alerting" %}
                                            {% if r.KeepFiringFor > 0 %}
                                            <b>alert:</b> {%s r.Name %} (for: {%v r.Duration %} seconds, keep_firing_for: {%v r.KeepFiringFor %} seconds)
                                            {% else %}
                                            <b>alert:</b> {%s r.Name %} (for: {%v r.Duration %} seconds)
                                            {% endif %}
                                            {% else %}
                                            <b>record:</b> {%s r.Name %}
                                            {% endif %}
                                            |
                                            {%= seriesFetchedWarn(r) %}
                                            <span><a target="_blank" href="{%s prefix+r.WebLink() %}">Details</a></span>
                                        </div>
                                        <div class="col-12">
                                            <code><pre>{%s r.Query %}</pre></code>
                                        </div>
                                        <div class="col-12 mb-2">
                                            {% if len(r.Labels) > 0 %} <b>Labels:</b>{% endif %}
                                            {% for k, v := range r.Labels %}
                                                    <span class="ms-1 badge bg-primary">{%s k %}={%s v %}</span>
                                            {% endfor %}
                                        </div>
                                        {% if r.LastError != "" %}
                                        <div class="col-12">
                                            <b>Error:</b>
                                            <div class="error-cell">
                                            {%s r.LastError %}
                                            </div>
                                        </div>
                                        {% endif %}
                                    </div>
                                </td>
                                <td class="text-center">{%d r.LastSamples %}</td>
                                <td class="text-center">{%f.3 time.Since(r.LastEvaluation).Seconds() %}s ago</td>
                            </tr>
                        {% endfor %}
                     </tbody>
                    </table>
                </div>
            {% endfor %}
        {% else %}
            <div>
                <p>No groups...</p>
            </div>
        {% endif %}

    {%= tpl.Footer(r) %}

{% endfunc %}


{% func ListAlerts(r *http.Request, groupAlerts []groupAlerts) %}
    {%code prefix := utils.Prefix(r.URL.Path) %}
    {%= tpl.Header(r, navItems, "Alerts", getLastConfigError()) %}
    {% if len(groupAlerts) > 0 %}
         <a class="btn btn-primary" role="button" onclick="collapseAll()">Collapse All</a>
         <a class="btn btn-primary" role="button" onclick="expandAll()">Expand All</a>
         {% for _, ga := range groupAlerts %}
            {%code g := ga.Group %}
            <div class="group-heading alert-danger" data-bs-target="rules-{%s g.ID %}">
                <span class="anchor" id="group-{%s g.ID %}"></span>
                <a href="#group-{%s g.ID %}">{%s g.Name %}{% if g.Type != "prometheus" %} ({%s g.Type %}){% endif %}</a>
                <span class="badge bg-danger" title="Number of active alerts">{%d len(ga.Alerts) %}</span>
                <br>
                <p class="fs-6 fw-lighter">{%s g.File %}</p>
            </div>
            {%code
                var keys []string
                alertsByRule := make(map[string][]*apiAlert)
                for _, alert := range ga.Alerts {
                    if len(alertsByRule[alert.RuleID]) < 1 {
                        keys = append(keys, alert.RuleID)
                    }
                    alertsByRule[alert.RuleID] = append(alertsByRule[alert.RuleID], alert)
                }
                sort.Strings(keys)
            %}
            <div class="collapse" id="rules-{%s g.ID %}">
                {% for _, ruleID := range keys %}
                    {%code
                        defaultAR := alertsByRule[ruleID][0]
                        var labelKeys []string
                        for k := range defaultAR.Labels {
                            labelKeys = append(labelKeys, k)
                        }
                        sort.Strings(labelKeys)
                    %}
                    <br>
                    <b>alert:</b> {%s defaultAR.Name %} ({%d len(alertsByRule[ruleID]) %})
                     | <span><a target="_blank" href="{%s defaultAR.SourceLink %}">Source</a></span>
                    <br>
                    <b>expr:</b><code><pre>{%s defaultAR.Expression %}</pre></code>
                    <table class="table table-striped table-hover table-sm">
                        <thead>
                            <tr>
                                <th scope="col">Labels</th>
                                <th scope="col">State</th>
                                <th scope="col">Active at</th>
                                <th scope="col">Value</th>
                                <th scope="col">Link</th>
                            </tr>
                        </thead>
                        <tbody>
                        {% for _, ar := range alertsByRule[ruleID] %}
                            <tr>
                                <td>
                                    {% for _, k := range labelKeys %}
                                        <span class="ms-1 badge bg-primary">{%s k %}={%s ar.Labels[k] %}</span>
                                    {% endfor %}
                                </td>
                                <td>{%= badgeState(ar.State) %}</td>
                                <td>
                                    {%s ar.ActiveAt.Format("2006-01-02T15:04:05Z07:00") %}
                                    {% if ar.Restored %}{%= badgeRestored() %}{% endif %}
                                    {% if ar.Stabilizing %}{%= badgeStabilizing() %}{% endif %}
                                </td>
                                <td>{%s ar.Value %}</td>
                                <td>
                                    <a href="{%s prefix+ar.WebLink() %}">Details</a>
                                </td>
                            </tr>
                        {% endfor %}
                     </tbody>
                    </table>
                {% endfor %}
            </div>
            <br>
        {% endfor %}

    {% else %}
        <div>
            <p>No active alerts...</p>
        </div>
    {% endif %}

    {%= tpl.Footer(r) %}

{% endfunc %}

{% func ListTargets(r *http.Request, targets map[notifier.TargetType][]notifier.Target) %}
    {%= tpl.Header(r, navItems, "Notifiers", getLastConfigError()) %}
    {% if len(targets) > 0 %}
         <a class="btn btn-primary" role="button" onclick="collapseAll()">Collapse All</a>
         <a class="btn btn-primary" role="button" onclick="expandAll()">Expand All</a>

         {%code
             var keys []string
             for key := range targets {
                 keys = append(keys, string(key))
             }
             sort.Strings(keys)
         %}

         {% for i := range keys  %}
           {%code typeK, ns := keys[i], targets[notifier.TargetType(keys[i])]
                count := len(ns)
            %}
           <div class="group-heading" data-bs-target="notifiers-{%s typeK %}">
             <span class="anchor" id="group-{%s typeK %}"></span>
             <a href="#group-{%s typeK %}">{%s typeK %} ({%d count %})</a>
         </div>
         <div class="collapse show" id="notifiers-{%s typeK %}">
             <table class="table table-striped table-hover table-sm">
                 <thead>
                     <tr>
                         <th scope="col">Labels</th>
                         <th scope="col">Address</th>
                     </tr>
                 </thead>
                 <tbody>
                 {% for _, n := range ns %}
                     <tr>
                         <td>
                              {% for _, l := range n.Labels.GetLabels() %}
                                      <span class="ms-1 badge bg-primary">{%s l.Name %}={%s l.Value %}</span>
                              {% endfor %}
                          </td>
                         <td>{%s n.Notifier.Addr() %}</td>
                     </tr>
                 {% endfor %}
              </tbody>
             </table>
         </div>
     {% endfor %}

    {% else %}
        <div>
            <p>No targets...</p>
        </div>
    {% endif %}

    {%= tpl.Footer(r) %}

{% endfunc %}

{% func Alert(r *http.Request, alert *apiAlert) %}
    {%code prefix := utils.Prefix(r.URL.Path) %}
    {%= tpl.Header(r, navItems, "", getLastConfigError()) %}
    {%code
        var labelKeys []string
        for k := range alert.Labels {
            labelKeys = append(labelKeys, k)
        }
        sort.Strings(labelKeys)

        var annotationKeys []string
        for k := range alert.Annotations {
            annotationKeys = append(annotationKeys, k)
        }
        sort.Strings(annotationKeys)
    %}
    <div class="display-6 pb-3 mb-3">Alert: {%s alert.Name %}<span class="ms-2 badge {% if alert.State=="firing" %}bg-danger{% else %} bg-warning text-dark{% endif %}">{%s alert.State %}</span></div>
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Active at
        </div>
        <div class="col">
          {%s alert.ActiveAt.Format("2006-01-02T15:04:05Z07:00") %}
        </div>
      </div>
      </div>
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Expr
        </div>
        <div class="col">
          <code><pre>{%s alert.Expression %}</pre></code>
        </div>
      </div>
    </div>
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Labels
        </div>
        <div class="col">
           {% for _, k := range labelKeys %}
                <span class="m-1 badge bg-primary">{%s k %}={%s alert.Labels[k] %}</span>
          {% endfor %}
        </div>
      </div>
    </div>
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Annotations
        </div>
        <div class="col">
           {% for _, k := range annotationKeys %}
                <b>{%s k %}:</b><br>
                <p>{%s alert.Annotations[k] %}</p>
          {% endfor %}
        </div>
      </div>
    </div>
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Group
        </div>
        <div class="col">
           <a target="_blank" href="{%s prefix %}groups#group-{%s alert.GroupID %}">{%s alert.GroupID %}</a>
        </div>
      </div>
    </div>
     <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Source link
        </div>
        <div class="col">
           <a target="_blank" href="{%s alert.SourceLink %}">Link</a>
        </div>
      </div>
    </div>
    {%= tpl.Footer(r) %}

{% endfunc %}


{% func RuleDetails(r *http.Request, rule apiRule) %}
    {%code prefix := utils.Prefix(r.URL.Path) %}
    {%= tpl.Header(r, navItems, "", getLastConfigError()) %}
    {%code
        var labelKeys []string
        for k := range rule.Labels {
            labelKeys = append(labelKeys, k)
        }
        sort.Strings(labelKeys)

        var annotationKeys []string
        for k := range rule.Annotations {
            annotationKeys = append(annotationKeys, k)
        }
        sort.Strings(annotationKeys)

        var seriesFetchedEnabled bool
        var seriesFetchedWarning bool
        for _, u := range rule.Updates {
          if u.SeriesFetched != nil {
            seriesFetchedEnabled = true
            if *u.SeriesFetched == 0 && u.Samples == 0{
                seriesFetchedWarning = true
            }
          }
        }

    %}
    <div class="display-6 pb-3 mb-3">Rule: {%s rule.Name %}<span class="ms-2 badge {% if rule.Health!="ok" %}bg-danger{% else %} bg-success text-dark{% endif %}">{%s rule.Health %}</span></div>
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Expr
        </div>
        <div class="col">
          <code><pre>{%s rule.Query %}</pre></code>
        </div>
      </div>
    </div>
    {% if rule.Type == "alerting" %}
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          For
        </div>
        <div class="col">
         {%v rule.Duration %} seconds
        </div>
      </div>
    </div>
    {% if rule.KeepFiringFor > 0 %}
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Keep firing for
        </div>
        <div class="col">
         {%v rule.KeepFiringFor %} seconds
        </div>
      </div>
    </div>
    {% endif %}
    {% endif %}
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Labels
        </div>
        <div class="col">
          {% for _, k := range labelKeys %}
                <span class="m-1 badge bg-primary">{%s k %}={%s rule.Labels[k] %}</span>
          {% endfor %}
        </div>
      </div>
    </div>
    {% if rule.Type == "alerting" %}
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Annotations
        </div>
        <div class="col">
          {% for _, k := range annotationKeys %}
                <b>{%s k %}:</b><br>
                <p>{%s rule.Annotations[k] %}</p>
          {% endfor %}
        </div>
      </div>
    </div>
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Debug
        </div>
        <div class="col">
           {%v rule.Debug %}
        </div>
      </div>
    </div>
    {% endif %}
    <div class="container border-bottom p-2">
      <div class="row">
        <div class="col-2">
          Group
        </div>
        <div class="col">
           <a target="_blank" href="{%s prefix %}groups#group-{%s rule.GroupID %}">{%s rule.GroupID %}</a>
        </div>
      </div>
    </div>

    <br>
    {% if seriesFetchedWarning %}
    <div class="alert alert-warning" role="alert">
       <strong>Warning:</strong> some of updates have "Series fetched" equal to 0.<br>
       It might be that either this data is missing in the datasource or there is a typo in rule's expression.
       For example, <strong>foo{label="bar"} > 0</strong> could never trigger because <strong>foo{label="bar"}</strong>
       metric doesn't exist.
       <br>
       Rule's expressions without time series selector, like <strong>expr: 42</strong> or <strong>expr: time()</strong>
       aren't fetching time series from datasource, so they could have "Series fetched" equal to 0 and this won't be a problem.
       <br>
       See more details about this detection <a target="_blank" href="https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4039">here</a>.
    </div>
    {% endif %}
    <div class="display-6 pb-3">Last {%d len(rule.Updates) %}/{%d rule.MaxUpdates %} updates</span>:</div>
        <table class="table table-striped table-hover table-sm">
            <thead>
                <tr>
                    <th scope="col" title="The time when event was created">Updated at</th>
                    <th scope="col" style="width: 10%" class="text-center" title="How many samples were returned">Samples</th>
                    {% if seriesFetchedEnabled %}<th scope="col" style="width: 10%" class="text-center" title="How many series were scanned by datasource during the evaluation">Series fetched</th>{% endif %}
                    <th scope="col" style="width: 10%" class="text-center" title="How many seconds request took">Duration</th>
                    <th scope="col" class="text-center" title="Time used for rule execution">Executed at</th>
                    <th scope="col" class="text-center" title="cURL command with request example">cURL</th>
                </tr>
            </thead>
            <tbody>

     {% for _, u := range rule.Updates %}
             <tr{% if u.Err != nil %} class="alert-danger"{% endif %}>
                 <td>
                    <span class="badge bg-primary rounded-pill me-3" title="Updated at">{%s u.Time.Format(time.RFC3339) %}</span>
                 </td>
                 <td class="text-center">{%d u.Samples %}</td>
                 {% if seriesFetchedEnabled %}<td class="text-center">{% if u.SeriesFetched != nil %}{%d *u.SeriesFetched %}{% endif %}</td>{% endif %}
                 <td class="text-center">{%f.3 u.Duration.Seconds() %}s</td>
                 <td class="text-center">{%s u.At.Format(time.RFC3339) %}</td>
                 <td>
                    <textarea class="curl-area" rows="1" onclick="this.focus();this.select()">{%s u.Curl %}</textarea>
                </td>
             </tr>
          </li>
          {% if u.Err != nil %}
             <tr{% if u.Err != nil %} class="alert-danger"{% endif %}>
               <td colspan="{% if seriesFetchedEnabled %}6{%else%}5{%endif%}">
                   <span class="alert-danger">{%v u.Err %}</span>
               </td>
             </tr>
          {% endif %}
     {% endfor %}

    {%= tpl.Footer(r) %}
{% endfunc %}



{% func badgeState(state string) %}
{%code
    badgeClass := "bg-warning text-dark"
    if state == "firing" {
        badgeClass = "bg-danger"
    }
%}
<span class="badge {%s badgeClass %}">{%s state %}</span>
{% endfunc %}

{% func badgeRestored() %}
<span class="badge bg-warning text-dark" title="Alert state was restored after the service restart from remote storage">restored</span>
{% endfunc %}

{% func badgeStabilizing() %}
<span class="badge bg-warning text-dark" title="This firing state is kept because of `keep_firing_for`">stabilizing</span>
{% endfunc %}

{% func seriesFetchedWarn(r apiRule) %}
{% if isNoMatch(r) %}
<svg xmlns="http://www.w3.org/2000/svg"
    data-bs-toggle="tooltip"
    title="No match! This rule's last evaluation hasn't selected any time series from the datasource.
    It might be that either this data is missing in the datasource or there is a typo in rule's expression.
    See more in Details."
    width="18" height="18" fill="currentColor" class="bi bi-exclamation-triangle-fill flex-shrink-0 me-2" viewBox="0 0 16 16" role="img" aria-label="Warning:">
       <path d="M8 16A8 8 0 1 0 8 0a8 8 0 0 0 0 16zm.93-9.412-1 4.705c-.07.34.029.533.304.533.194 0 .487-.07.686-.246l-.088.416c-.287.346-.92.598-1.465.598-.703 0-1.002-.422-.808-1.319l.738-3.468c.064-.293.006-.399-.287-.47l-.451-.081.082-.381 2.29-.287zM8 5.5a1 1 0 1 1 0-2 1 1 0 0 1 0 2z"/>
</svg>
{% endif %}
{% endfunc %}

{%code
  func isNoMatch (r apiRule) bool {
    return r.LastSamples == 0 && r.LastSeriesFetched != nil && *r.LastSeriesFetched == 0
  }
%}