Metrics: Use buckets for work, worklog and vouchers

config/config.default.php

@@ -179,6 +179,12 @@ return [
         '4XL'  => '4XLarge Straight-Cut',
     ],
 
+    'metrics'                 => [
+        // User work buckets in seconds
+        'work'    => [1 * 60 * 60, 1.5 * 60 * 60, 2 * 60 * 60, 3 * 60 * 60, 5 * 60 * 60, 10 * 60 * 60, 20 * 60 * 60],
+        'voucher' => [0, 1, 2, 3, 5, 10, 15, 20],
+    ],
+
     // Shifts overview
     // Set max number of hours that can be shown at once
     'filter_max_duration' => 0,

src/Controllers/Metrics/Controller.php

@@ -62,6 +62,11 @@ class Controller extends BaseController
     {
         $now = microtime(true);
         $this->checkAuth();
+        $metrics = $this->config->get('metrics');
+        foreach (['work', 'voucher'] as $type) {
+            sort($metrics[$type]);
+            $metrics[$type] = array_merge($metrics[$type], ['+Inf']);
+        }
 
         $userTshirtSizes = $this->formatStats($this->stats->tshirtSizes(), 'tshirt_sizes', 'shirt_size', 'size');
         $userLocales = $this->formatStats($this->stats->languages(), 'locales', 'language', 'locale');
@@ -103,13 +108,32 @@ class Controller extends BaseController
                 ['labels' => ['freeloader' => true], $this->stats->currentlyWorkingUsers(true)],
             ],
             'work_seconds'         => [
-                'type' => 'gauge',
-                ['labels' => ['state' => 'done'], 'value' => $this->stats->workSeconds(true, false)],
-                ['labels' => ['state' => 'planned'], 'value' => $this->stats->workSeconds(false, false)],
-                ['labels' => ['state' => 'freeloaded'], 'value' => $this->stats->workSeconds(null, true)],
+                'help' => 'Working users',
+                'type' => 'histogram',
+                [
+                    'labels' => ['state' => 'done'],
+                    'value'  => $this->stats->workBuckets($metrics['work'], true, false),
+                    'sum' => $this->stats->workSeconds(true, false),
+                ],
+                [
+                    'labels' => ['state' => 'planned'],
+                    'value'  => $this->stats->workBuckets($metrics['work'], false, false),
+                    'sum' => $this->stats->workSeconds(false, false),
+                ],
+                [
+                    'labels' => ['state' => 'freeloaded'],
+                    'value'  => $this->stats->workBuckets($metrics['work'], null, true),
+                    'sum' => $this->stats->workSeconds(null, true),
+                ],
+            ],
+            'worklog_seconds'      => [
+                'type' => 'histogram',
+                $this->stats->worklogBuckets($metrics['work']) + ['sum' => $this->stats->worklogSeconds()],
+            ],
+            'vouchers'             => [
+                'type' => 'histogram',
+                $this->stats->vouchersBuckets($metrics['voucher']) + ['sum' => $this->stats->vouchers()],
             ],
-            'worklog_seconds'      => ['type' => 'gauge', $this->stats->worklogSeconds()],
-            'vouchers'             => ['type' => 'counter', $this->stats->vouchers()],
             'tshirts_issued'       => ['type' => 'counter', 'help' => 'Issued T-Shirts', $this->stats->tshirts()],
             'tshirt_sizes'         => [
                 'type' => 'gauge',

src/Controllers/Metrics/Stats.php

@@ -110,12 +110,41 @@ class Stats
         return $query->count();
     }
 
+    /**
+     * @return QueryBuilder
+     */
+    protected function vouchersQuery()
+    {
+        return State::query();
+    }
+
     /**
      * @return int
      */
     public function vouchers(): int
     {
-        return (int)State::query()->sum('got_voucher');
+        return (int)$this->vouchersQuery()->sum('got_voucher');
+    }
+
+    /**
+     * @param array $buckets
+     *
+     * @return array
+     */
+    public function vouchersBuckets(array $buckets): array
+    {
+        $return = [];
+        foreach ($buckets as $bucket) {
+            $query = $this->vouchersQuery();
+
+            if ($bucket !== '+Inf') {
+                $query->where('got_voucher', '<=', $bucket);
+            }
+
+            $return[$bucket] = $query->count('got_voucher');
+        }
+
+        return $return;
     }
 
     /**
@@ -190,10 +219,11 @@ class Stats
      *
      * @param bool|null $done
      * @param bool|null $freeloaded
-     * @return int
+     *
      * @codeCoverageIgnore
+     * @return QueryBuilder
      */
-    public function workSeconds(bool $done = null, bool $freeloaded = null): int
+    protected function workSecondsQuery(bool $done = null, bool $freeloaded = null): QueryBuilder
     {
         $query = $this
             ->getQuery('ShiftEntry')
@@ -207,20 +237,111 @@ class Stats
             $query->where('end', ($done == true ? '<' : '>='), time());
         }
 
+        return $query;
+    }
+
+    /**
+     * The number of worked shifts
+     *
+     * @param bool|null $done
+     * @param bool|null $freeloaded
+     *
+     * @return int
+     * @codeCoverageIgnore
+     */
+    public function workSeconds(bool $done = null, bool $freeloaded = null): int
+    {
+        $query = $this->workSecondsQuery($done, $freeloaded);
+
         return (int)$query->sum($this->raw('end - start'));
     }
 
+    /**
+     * The number of worked shifts
+     *
+     * @param array     $buckets
+     * @param bool|null $done
+     * @param bool|null $freeloaded
+     *
+     * @return array
+     * @codeCoverageIgnore
+     */
+    public function workBuckets(array $buckets, bool $done = null, bool $freeloaded = null): array
+    {
+        return $this->getBuckets(
+            $buckets,
+            $this->workSecondsQuery($done, $freeloaded),
+            'UID',
+            'SUM(end - start)',
+            'end - start'
+        );
+    }
+
+    /**
+     * @param array        $buckets
+     * @param QueryBuilder $basicQuery
+     * @param string       $groupBy
+     * @param string       $having
+     * @param string       $count
+     *
+     * @return array
+     * @codeCoverageIgnore As long as its only used for old tables
+     */
+    protected function getBuckets(array $buckets, $basicQuery, string $groupBy, string $having, string $count): array
+    {
+        $return = [];
+
+        foreach ($buckets as $bucket) {
+            $query = clone $basicQuery;
+            $query->groupBy($groupBy);
+
+            if ($bucket !== '+Inf') {
+                $query->having($this->raw($having), '<=', $bucket);
+            }
+
+            $return[$bucket] = $query->count($this->raw($count));
+        }
+
+        return $return;
+    }
+
+    /**
+     * @return QueryBuilder
+     * @codeCoverageIgnore
+     */
+    protected function worklogSecondsQuery()
+    {
+        return $this
+            ->getQuery('UserWorkLog');
+    }
+
     /**
      * @return int
      * @codeCoverageIgnore
      */
     public function worklogSeconds(): int
     {
-        return (int)$this
-            ->getQuery('UserWorkLog')
+        return (int)$this->worklogSecondsQuery()
             ->sum($this->raw('work_hours * 60 * 60'));
     }
 
+    /**
+     * @param array $buckets
+     *
+     * @return array
+     * @codeCoverageIgnore
+     */
+    public function worklogBuckets(array $buckets): array
+    {
+        return $this->getBuckets(
+            $buckets,
+            $this->worklogSecondsQuery(),
+            'user_id',
+            'SUM(work_hours * 60 * 60)',
+            'work_hours * 60 * 60'
+        );
+    }
+
     /**
      * @return int
      * @codeCoverageIgnore

tests/Feature/Controllers/Metrics/ControllerTest.php

@@ -12,7 +12,7 @@ class ControllerTest extends ApplicationFeatureTest
      */
     public function testMetrics()
     {
-        config(['api_key' => null]);
+        config(['api_key' => null, 'metrics' => ['work' => [60 * 60], 'voucher' => [1]]]);
 
         /** @var Controller $controller */
         $controller = app()->make(Controller::class);

tests/Unit/Controllers/Metrics/ControllerTest.php

@@ -151,6 +151,10 @@ class ControllerTest extends TestCase
             '0' => 'Nothing',
             '1' => 'Testing',
         ]);
+        $config->set('metrics', [
+            'work'    => [60 * 60],
+            'voucher' => [1]
+        ]);
 
         $this->setExpects($version, 'getVersion', [], '0.42.42');
 

tests/Unit/Controllers/Metrics/StatsTest.php

@@ -36,6 +36,7 @@ class StatsTest extends TestCase
 
     /**
      * @covers \Engelsystem\Controllers\Metrics\Stats::vouchers
+     * @covers \Engelsystem\Controllers\Metrics\Stats::vouchersQuery
      */
     public function testVouchers()
     {
@@ -45,6 +46,17 @@ class StatsTest extends TestCase
         $this->assertEquals(14, $stats->vouchers());
     }
 
+    /**
+     * @covers \Engelsystem\Controllers\Metrics\Stats::vouchersBuckets
+     */
+    public function testVouchersBuckets()
+    {
+        $this->addUsers();
+
+        $stats = new Stats($this->database);
+        $this->assertEquals([1 => 6, 3 => 8, '+Inf' => 9], $stats->vouchersBuckets([1, 3, '+Inf']));
+    }
+
     /**
      * @covers \Engelsystem\Controllers\Metrics\Stats::tshirts
      */