🔧 Provide mapping to graph interval

Author: rabrowne85

src/Enums/Period.php

@@ -71,6 +71,25 @@ public function maxDataPoints(): int
         };
     }
 
+    /**
+     * Function period.
+     */
+    public function graphPeriod(): ?Period
+    {
+        return match ($this) {
+            self::HOUR => null,
+            self::SIXHOUR => self::HOUR,
+            self::HALFDAY => self::HOUR,
+            self::DAY => self::HOUR,
+            self::WEEK => self::DAY,
+            self::MONTH => self::DAY,
+            self::QUARTER => self::DAY,
+            self::HALFYEAR => self::MONTH,
+            self::YEAR => self::MONTH,
+            self::TAXYEAR => self::MONTH,
+        };
+    }
+
     /**
      * Function period.
      */

src/Storage/DatabaseStorage.php

@@ -451,7 +451,7 @@ public function graph(array $types, string $aggregate, Period $interval): Collec
             throw new InvalidArgumentException("Invalid aggregate type [$aggregate], allowed types: [".implode(', ', $allowed).'].');
         }
 
-        $period = $interval->value;
+        $period = $interval;
         $buckets = $interval->getBuckets();
         $padding = collect()
             ->range(0, $interval->maxDataPoints() - 1)
@@ -463,7 +463,7 @@ public function graph(array $types, string $aggregate, Period $interval): Collec
             ->select(['bucket', 'type', 'key', 'value'])
             ->whereIn('type', $types)
             ->where('aggregate', $aggregate)
-            ->where('period', $period - 1)
+            ->where('period', $period->graphPeriod()?->value)
             ->where('bucket', '>=', $buckets[0]->getTimestamp())
             ->orderBy('bucket')
             ->get()