From c5621b82cfeddee23b81871a53035fde747f73a9 Mon Sep 17 00:00:00 2001
From: Igor Scheller <igor.scheller@igorshp.de>
Date: Tue, 18 Dec 2018 02:23:44 +0100
Subject: Implemented /metrics endpoint and reimplemented /stats

closes #418 (/metrics endpoint)

Usage:
```yaml
scrape_configs:
  - job_name: 'engelsystem'
    static_configs:
    - targets: ['engelsystem.example.com:80']
```
---
 src/Controllers/Metrics/Stats.php | 144 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 src/Controllers/Metrics/Stats.php

(limited to 'src/Controllers/Metrics/Stats.php')

diff --git a/src/Controllers/Metrics/Stats.php b/src/Controllers/Metrics/Stats.php
new file mode 100644
index 00000000..891f8c80
--- /dev/null
+++ b/src/Controllers/Metrics/Stats.php
@@ -0,0 +1,144 @@
+<?php
+
+namespace Engelsystem\Controllers\Metrics;
+
+use Engelsystem\Database\Database;
+use Illuminate\Database\Query\Builder as QueryBuilder;
+use Illuminate\Database\Query\Expression as QueryExpression;
+
+class Stats
+{
+    /** @var Database */
+    protected $db;
+
+    /**
+     * @param Database $db
+     */
+    public function __construct(Database $db)
+    {
+        $this->db = $db;
+    }
+
+    /**
+     * The number of not arrived users
+     *
+     * @param null $working
+     * @return int
+     */
+    public function arrivedUsers($working = null): int
+    {
+        $query = $this
+            ->getQuery('users')
+            ->join('users_state', 'user_id', '=', 'id')
+            ->where('arrived', '=', 1);
+
+        if (!is_null($working)) {
+            // @codeCoverageIgnoreStart
+            $query
+                ->leftJoin('UserWorkLog', 'UserWorkLog.user_id', '=', 'users.id')
+                ->leftJoin('ShiftEntry', 'ShiftEntry.UID', '=', 'users.id')
+                ->groupBy('users.id');
+
+            $query->where(function ($query) use ($working) {
+                /** @var QueryBuilder $query */
+                if ($working) {
+                    $query
+                        ->whereNotNull('ShiftEntry.SID')
+                        ->orWhereNotNull('UserWorkLog.work_hours');
+
+                    return;
+                }
+                $query
+                    ->whereNull('ShiftEntry.SID')
+                    ->whereNull('UserWorkLog.work_hours');
+            });
+            // @codeCoverageIgnoreEnd
+        }
+
+        return $query
+            ->count();
+    }
+
+    /**
+     * The number of not arrived users
+     *
+     * @return int
+     */
+    public function newUsers(): int
+    {
+        return $this
+            ->getQuery('users')
+            ->join('users_state', 'user_id', '=', 'id')
+            ->where('arrived', '=', 0)
+            ->count();
+    }
+
+    /**
+     * The number of currently working users
+     *
+     * @param null $freeloaded
+     * @return int
+     * @codeCoverageIgnore
+     */
+    public function currentlyWorkingUsers($freeloaded = null): int
+    {
+        $query = $this
+            ->getQuery('users')
+            ->join('ShiftEntry', 'ShiftEntry.UID', '=', 'users.id')
+            ->join('Shifts', 'Shifts.SID', '=', 'ShiftEntry.SID')
+            ->where('Shifts.start', '<=', time())
+            ->where('Shifts.end', '>', time());
+
+        if (!is_null($freeloaded)) {
+            $query->where('ShiftEntry.freeloaded', '=', $freeloaded);
+        }
+
+        return $query->count();
+    }
+
+    /**
+     * The number of worked shifts
+     *
+     * @param bool|null $done
+     * @param bool|null $freeloaded
+     * @return int
+     * @codeCoverageIgnore
+     */
+    public function workSeconds($done = null, $freeloaded = null): int
+    {
+        $query = $this
+            ->getQuery('ShiftEntry')
+            ->join('Shifts', 'Shifts.SID', '=', 'ShiftEntry.SID');
+
+        if (!is_null($freeloaded)) {
+            $query->where('freeloaded', '=', $freeloaded);
+        }
+
+        if (!is_null($done)) {
+            $query->where('end', ($done == true ? '<' : '>='), time());
+        }
+
+        return $query->sum($this->raw('end - start'));
+    }
+
+    /**
+     * @param string $table
+     * @return QueryBuilder
+     */
+    protected function getQuery(string $table): QueryBuilder
+    {
+        return $this->db
+            ->getConnection()
+            ->table($table);
+    }
+
+    /**
+     * @param mixed $value
+     * @return QueryExpression
+     * @codeCoverageIgnore
+     */
+    protected function raw($value)
+    {
+        return $this->db->getConnection()->raw($value);
+    }
+}
-- 
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