[mod] /stats : detail per engine

allow to submit a github issue including the technical details
(exceptions, errors, warning, checker result)

7 files changed, 227 insertions, 20 deletions

diff --git a/searx/__init__.py b/searx/__init__.py
index 11adbba73..71e00a49a 100644
--- a/searx/__init__.py
+++ b/searx/__init__.py
@@ -89,6 +89,10 @@ class _brand_namespace:
         return self.get_val('brand', 'issue_url')
 
     @property
+    def NEW_ISSUE_URL(self):
+        return self.get_val('brand', 'new_issue_url')
+
+    @property
     def DOCS_URL(self):
         return self.get_val('brand', 'docs_url')
 
diff --git a/searx/metrics/__init__.py b/searx/metrics/__init__.py
index adcb47aeb..6ed578116 100644
--- a/searx/metrics/__init__.py
+++ b/searx/metrics/__init__.py
@@ -150,7 +150,7 @@ def get_reliabilities(engline_name_list, checker_results):
         reliabilities[engine_name] = {
             'reliablity': reliablity,
             'errors': errors,
-            'checker': checker_results.get(engine_name, {}).get('errors', {}).keys(),
+            'checker': checker_results.get(engine_name, {}).get('errors', {}),
         }
     return reliabilities
 
diff --git a/searx/settings.yml b/searx/settings.yml
index 6e106a462..13163c7e4 100644
--- a/searx/settings.yml
+++ b/searx/settings.yml
@@ -7,6 +7,7 @@ brand:
     git_url: https://github.com/searxng/searxng
     git_branch: master
     issue_url: https://github.com/searxng/searxng/issues
+    new_issue_url: https://github.com/searxng/searxng/issues/new
     docs_url: https://searxng.github.io/searxng
     public_instances: https://searx.space
     wiki_url: https://github.com/searxng/searxng/wiki
diff --git a/searx/templates/__common__/new_issue.html b/searx/templates/__common__/new_issue.html
new file mode 100644
index 000000000..2a111a527
--- /dev/null
+++ b/searx/templates/__common__/new_issue.html
@@ -0,0 +1,74 @@
+{% macro new_issue(new_issue_url, engine_name, engine_reliability) %}
+<form action="{{ new_issue_url }}" method="GET">
+    <input name="title" type="hidden" value="Bug: {{ engine_name }} engine">
+    <input name="labels" type="hidden" value="bug">
+    <input name="template" type="hidden" value="bug-report.md">
+    <textarea name="body" style="display: none;">{{- '' -}}
+
+**Version of SearXNG, commit number if you are using on master branch and stipulate if you forked SearXNG**
+<!-- If you are running on master branch using git execute this command
+in order to fetch the latest commit ID:
+```
+git log -1
+``` 
+If you are using searx-docker then look at the bottom of the SearXNG page
+and check for the version after "Powered by SearXNG"
+
+Please also stipulate if you are using a forked version of SearxNG and
+include a link to the fork source code.
+-->
+**How did you install SearXNG?**
+<!-- Did you install SearXNG using the official wiki or using searx-docker
+or manually by executing the searx/webapp.py file? -->
+**What happened?**
+<!-- A clear and concise description of what the bug is. -->
+
+**How To Reproduce**
+<!-- How can we reproduce this issue? (as minimally and as precisely as possible) -->
+
+**Expected behavior**
+<!-- A clear and concise description of what you expected to happen. -->
+
+**Screenshots & Logs**
+<!-- If applicable, add screenshots, logs to help explain your problem. -->
+
+**Additional context**
+<!-- Add any other context about the problem here. -->
+
+**Technical report**
+
+{% for error in engine_reliability.errors %}
+{% if secondary %}Warning{% else %}Error{% endif %}
+{{'\n  '}}* Error: {{ error.exception_classname or error.log_message }}
+{{'  '}}* Percentage: {{ error.percentage }}
+{{'  '}}* Parameters: `{{ error.log_parameters }}`
+{{'  '}}* File name: `{{ error.filename }}:{{ error.line_no }}`
+{{'  '}}* Function: `{{ error.function }}`
+{{'  '}}* Code: `{{ error.code }}`
+{{'\n'-}}
+{%- endfor -%}
+{%- for test_name, results in engine_reliability.checker.items() -%}
+{%- if loop.first %}Checker{% endif -%}
+{{-'\n  '}}* {{ test_name }}: {% for result in results%}`{{ result }}`,{% endfor -%}
+{%- endfor -%}
+    </textarea>
+    <style>
+        .github-issue-button { 
+            display: block;
+            padding: 8px 16px;
+            font-family: sans-serif;
+            font-size: 16px;
+            color: white;
+            background-color: rgb(35, 134, 54);
+            border: rgb(46, 160, 67);
+            border-radius: 10px !important;
+            box-shadow: rgba(0, 0, 0, 0) 0px 0px 0px 0px;
+        }
+
+        .github-issue-button:hover {
+            background-color: rgb(46, 160, 67);
+        }
+    </style>
+    <button type="submit" class="github-issue-button" title="{{ new_issue_url }}">{{ _('Submit a new issue on Github including the above information') }}</button>
+</form>
+{% endmacro %}
diff --git a/searx/templates/oscar/stats.html b/searx/templates/oscar/stats.html
index b83714020..49c776ea8 100644
--- a/searx/templates/oscar/stats.html
+++ b/searx/templates/oscar/stats.html
@@ -1,18 +1,21 @@
-{% extends "oscar/base.html" %}
+{% extends 'oscar/base.html' %}
+{% from '__common__/new_issue.html' import new_issue %}
 
-{% block title %}{{ _('stats') }} - {% endblock %}
+{% block title %}{{ _('stats') }} - {% if selected_engine_name %} {{ selected_engine_name }} - {% endif %}{% endblock %}
 
 {%- macro th_sort(column_order, column_name) -%}
-    {% if column_order==sort_order %}
-        {{ column_name }} {{ icon('chevron-down') }}
-    {% else %}
-        <a href="{{ url_for('stats', sort=column_order) }}">{{ column_name }}
-    {% endif %}
+    {%- if selected_engine_name -%}
+        {{ column_name }}
+    {%- elif column_order==sort_order -%}
+        {{ column_name }} {{ icon('arrow-dropdown') }}
+    {%- else -%}
+        <a href="{{ url_for('stats', sort=column_order) }}">{{ column_name }}</a>
+    {%- endif -%}
 {%- endmacro -%}
 
 {% block content %}
 <div class="container-fluid">
-    <h1>{{ _('Engine stats') }}</h1>
+    <h1>{{ _('Engine stats') }}{% if selected_engine_name %} - {{ selected_engine_name }}{% endif %}</h1>
     <div class="row">
         <div class="col-xs-12 col-sm-12 col-md-12">
             <div class="table-responsive">
@@ -31,14 +34,14 @@
                         </tr>
                         {% for engine_stat in engine_stats.get('time', []) %}
                         <tr>
-                            <td>{{ engine_stat.name }}</td>
+                            <td><a href="{{ url_for('stats', engine=engine_stat.name|e) }}">{{ engine_stat.name }}</a></td>
                             <td style="text-align: right;">
-                                {% if engine_stat.score %}
+                                {%- if engine_stat.score -%}
                                 <span aria-labelledby="{{engine_stat.name}}_score" >{{ engine_stat.score|round(1) }}</span>
                                 <div class="engine-tooltip text-left" role="tooltip" id="{{engine_stat.name}}_score">{{- "" -}}
                                     <p>{{ _('Scores per result') }}: {{ engine_stat.score_per_result | round(3) }}</p>
                                 </div>
-                                {% endif %}
+                                {%- endif -%}
                             </td>
                             <td>
                                 {%- if engine_stat.result_count -%}
@@ -92,6 +95,63 @@
                 {% endif %}
             </div>
         </div>
+        <div class="col-xs-12 col-sm-12 col-md-12">
+        {% if selected_engine_name %}
+            {% for secondary in [False, True] %}
+                {% set ns = namespace(first=true) %}
+                {% for error in engine_reliabilities[selected_engine_name].errors %}
+                    {% if secondary == error.secondary %}
+                        {% if ns.first %}
+                            {% set ns.first = false %}
+                            <h3>{% if secondary %}{{ _('Warnings') }}{% else %}{{ _('Errors and exceptions') }}{% endif %}</h3>
+                        {% endif %}
+                        <table class="table table-striped table-bordered">
+                            <tbody style="padding-top: 1rem;">
+                                <tr>
+                                    {%- if error.exception_classname -%}
+                                        <th scope="row" style="width: 10rem">{{ _('Exception') }}</th><td>{{ error.exception_classname }}</td>
+                                    {%- elif error.log_message -%}
+                                        <th scope="row" style="width: 10rem">{{ _('Message') }}</th><td>{{ error.log_message }}</td>
+                                    {%- endif -%}
+                                    <th scope="row" style="width: 10rem">{{ _('Percentage') }}</th><td style="width: 10rem">{{ error.percentage }}</td>
+                                </tr>
+                                {% if error.log_parameters and error.log_parameters != (None, None, None) %}<tr><th scope="row">{{ _('Parameter') }}</th>{{- '' -}}
+                                    <td colspan="3">
+                                        {%- for param in error.log_parameters -%}
+                                            <span style="border-right: 1px solid gray; padding: 0 1rem 0 0; margin: 0 0 0 0.5rem;">{{ param }}</span>
+                                        {%- endfor -%}
+                                    </td>
+                                </tr>
+                                {% endif %}
+                                <tr><th scope="row">{{ _('Filename') }}</th><td colspan="3">{{ error.filename }}:{{ error.line_no }}</td></tr>
+                                <tr><th scope="row">{{ _('Function') }}</th><td colspan="3">{{ error.function }}</td></tr>
+                                <tr><th scope="row">{{ _('Code') }}</th><td colspan="3">{{ error.code }}</td></tr>
+                            </tbody>
+                        </table>
+                    {% endif %}
+                {% endfor %}
+            {% endfor %}
+            {% if engine_reliabilities[selected_engine_name].checker %}
+                <h3>{{ _('Checker') }}</h3>
+                <table class="table table-striped table-bordered">
+                    <tr>
+                        <th scope="col" style="width: 10rem">{{ _('Failed test') }}</th>
+                        <th scope="col">{{ _('Comment(s)') }}</th>
+                    </tr>
+                    {% for test_name, results in engine_reliabilities[selected_engine_name].checker.items() %}
+                    <tr>
+                        <td>{{ test_name }}</td>
+                        <td>
+                            {% for r in results %}<p>{{ r }}</p>{% endfor %}
+                        </td>
+                    </tr>
+                    {% endfor %}
+                </table>
+            {% endif %}
+            {{ new_issue(brand.NEW_ISSUE_URL, selected_engine_name, engine_reliabilities[selected_engine_name]) }}
+        {% endif %}
+        </div>
     </div>
 </div>
+
 {% endblock %}
diff --git a/searx/templates/simple/stats.html b/searx/templates/simple/stats.html
index eecd88903..098a54065 100644
--- a/searx/templates/simple/stats.html
+++ b/searx/templates/simple/stats.html
@@ -1,12 +1,15 @@
 {% from 'simple/macros.html' import icon %}
+{% from '__common__/new_issue.html' import new_issue %}
 
 {% extends "simple/base.html" %}
 
 {%- macro th_sort(column_order, column_name) -%}
-    {% if column_order==sort_order %}
+    {% if selected_engine_name %}
+        {{ column_name }}
+    {% elif column_order==sort_order %}
         {{ column_name }} {{ icon('arrow-dropdown') }}
     {% else %}
-        <a href="{{ url_for('stats', sort=column_order) }}">{{ column_name }}
+        <a href="{{ url_for('stats', sort=column_order) }}">{{ column_name }}</a>
     {% endif %}
 {%- endmacro -%}
 
@@ -15,12 +18,12 @@
 
 <a href="{{ url_for('index') }}"><h1><span>searx</span></h1></a>
 
-<h2>{{ _('Engine stats') }}</h2>
+<h2>{{ _('Engine stats') }}{% if selected_engine_name %} - {{ selected_engine_name }}{% endif %}</h2>
 
 {% if not engine_stats.get('time') %}
 {{ _('There is currently no data available. ') }}
 {% else %}
-<table style="max-width: 1280px; margin: 0 auto;">
+<table style="max-width: 1280px; margin: 0 auto 0 0;">
     <tr>
         <th scope="col" style="width:20rem;">{{ th_sort('name', _("Engine name")) }}</th>
         <th scope="col" style="width:7rem; text-align: right;">{{ th_sort('score', _('Scores')) }}</th>
@@ -30,7 +33,7 @@
     </tr>
     {% for engine_stat in engine_stats.get('time', []) %}
     <tr>
-        <td>{{ engine_stat.name }}</td>
+        <td><a href="{{ url_for('stats', engine=engine_stat.name|e) }}">{{ engine_stat.name }}</a></td>
         <td style="text-align: right;">
             {% if engine_stat.score %}
             <span aria-labelledby="{{engine_stat.name}}_score" >{{ engine_stat.score|round(1) }}</span>
@@ -90,4 +93,61 @@
 </table>
 {% endif %}
 
+<div>
+    {% if selected_engine_name %}
+        {% for secondary in [False, True] %}
+            {% set ns = namespace(first=true) %}
+            {% for error in engine_reliabilities[selected_engine_name].errors %}
+                {% if secondary == error.secondary %}
+                    {% if ns.first %}
+                        {% set ns.first = false %}
+                        <h3>{% if secondary %}{{ _('Warnings') }}{% else %}{{ _('Errors and exceptions') }}{% endif %}</h3>
+                    {% endif %}
+                    <table style="max-width: 1280px; margin: 1rem; border: 1px solid gray;">
+                        <tbody style="padding-top: 1rem;">
+                            <tr>
+                                {%- if error.exception_classname -%}
+                                    <th scope="row" style="width: 10rem">{{ _('Exception') }}</th><td>{{ error.exception_classname }}</td>
+                                {%- elif error.log_message -%}
+                                    <th scope="row" style="width: 10rem">{{ _('Message') }}</th><td>{{ error.log_message }}</td>
+                                {%- endif -%}
+                                <th scope="row" style="width: 10rem">{{ _('Percentage') }}</th><td style="width: 10rem">{{ error.percentage }}</td>
+                            </tr>
+                            {% if error.log_parameters and error.log_parameters != (None, None, None) %}<tr><th scope="row">{{ _('Parameter') }}</th>{{- '' -}}
+                                <td colspan="3">
+                                    {%- for param in error.log_parameters -%}
+                                        <span style="border-right: 1px solid gray; padding: 0 1rem 0 0; margin: 0 0 0 0.5rem;">{{ param }}</span>
+                                    {%- endfor -%}
+                                </td>
+                            </tr>
+                            {% endif %}
+                            <tr><th scope="row">{{ _('Filename') }}</th><td colspan="3">{{ error.filename }}:{{ error.line_no }}</td></tr>
+                            <tr><th scope="row">{{ _('Function') }}</th><td colspan="3">{{ error.function }}</td></tr>
+                            <tr><th scope="row">{{ _('Code') }}</th><td colspan="3">{{ error.code }}</td></tr>
+                        </tbody>
+                    </table>
+                {% endif %}
+            {% endfor %}
+        {% endfor %}
+        {% if engine_reliabilities[selected_engine_name].checker %}
+            <h3>{{ _('Checker') }}</h3>
+            <table>
+                <tr>
+                    <th scope="col" style="width: 10rem">{{ _('Failed test') }}</th>
+                    <th scope="col">{{ _('Comment(s)') }}</th>
+                </tr>
+                {% for test_name, results in engine_reliabilities[selected_engine_name].checker.items() %}
+                <tr>
+                    <td>{{ test_name }}</td>
+                    <td>
+                        {% for r in results %}<p>{{ r }}</p>{% endfor %}
+                    </td>
+                </tr>
+                {% endfor %}
+            </table>
+        {% endif %}
+        {{ new_issue(brand.NEW_ISSUE_URL, selected_engine_name, engine_reliabilities[selected_engine_name]) }}
+    {% endif %}
+</div>
+
 {% endblock %}
diff --git a/searx/webapp.py b/searx/webapp.py
index d917c16d4..69ec915a7 100755
--- a/searx/webapp.py
+++ b/searx/webapp.py
@@ -1073,16 +1073,23 @@ def image_proxy():
 @app.route('/stats', methods=['GET'])
 def stats():
     """Render engine statistics page."""
+    sort_order = request.args.get('sort', default='name', type=str)
+    selected_engine_name = request.args.get('engine', default=None, type=str)
+
+    filtered_engines = dict(filter(lambda kv: (kv[0], request.preferences.validate_token(kv[1])), engines.items()))
+    if selected_engine_name:
+        if selected_engine_name not in filtered_engines:
+            selected_engine_name = None
+        else:
+            filtered_engines = [selected_engine_name]
+
     checker_results = checker_get_result()
     checker_results = checker_results['engines'] \
         if checker_results['status'] == 'ok' and 'engines' in checker_results else {}
 
-    filtered_engines = dict(filter(lambda kv: (kv[0], request.preferences.validate_token(kv[1])), engines.items()))
     engine_stats = get_engines_stats(filtered_engines)
     engine_reliabilities = get_reliabilities(filtered_engines, checker_results)
 
-    sort_order = request.args.get('sort', default='name', type=str)
-
     SORT_PARAMETERS = {
         'name': (False, 'name', ''),
         'score': (True, 'score', 0),
@@ -1114,6 +1121,7 @@ def stats():
         sort_order=sort_order,
         engine_stats=engine_stats,
         engine_reliabilities=engine_reliabilities,
+        selected_engine_name=selected_engine_name,
     )