FileSizeOptimizedWidthCalculator::calculateWidths() - Code Metrics - Inspection of "add release date" - spatie/laravel-medialibrary - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( c2f76d...03586b )

by Freek

created 2018-03-17 08:46 UTC

calculateWidths() B

↳ Parent: FileSizeOptimizedWidthCalculator

Complexity

Conditions	3
Paths	3

Size

Total Lines	24
Code Lines	13

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	24
rs	8.9713
c	0
b	0
f	0
cc	3
eloc	13
nc	3
nop	3

<?php

namespace Spatie\MediaLibrary\ResponsiveImages\WidthCalculator;

use Illuminate\Support\Collection;
use Spatie\Image\Image;
use Spatie\MediaLibrary\ResponsiveImages\WidthCalculator\WidthCalculator;

class FileSizeOptimizedWidthCalculator implements WidthCalculator
{
    public function calculateWidthsFromFile(string $imagePath): Collection
    {
        $image = Image::load($imagePath);
        
        $width = $image->getWidth();
        $height = $image->getHeight();
        $fileSize = filesize($imagePath);

        return $this->calculateWidths($fileSize, $width, $height);
    }

    public function calculateWidths(int $fileSize, int $width, int $height): Collection
    {
        $targetWidths = collect();

        $targetWidths->push($width);

        $ratio = $height / $width;
        $area = $width * $width * $ratio;

        $predictedFileSize = $fileSize;
        $pixelPrice = $predictedFileSize / $area;

        while (true) {
            $predictedFileSize *= 0.7;

            $newWidth = (int)floor(sqrt(($predictedFileSize / $pixelPrice) / $ratio));

            if ($this->finishedCalculating($predictedFileSize, $newWidth)) {
                return $targetWidths;
            }

            $targetWidths->push($newWidth);
        }
    }

    protected function finishedCalculating(int $predictedFileSize, int $newWidth): bool
    {
        if ($newWidth < 20) {
            return true;
        }

        if ($predictedFileSize < (1024 * 10)) {
            return true;
        }

        return false;
    }
}


1			<?php
2
3			namespace Spatie\MediaLibrary\ResponsiveImages\WidthCalculator;
4
5			use Illuminate\Support\Collection;
6			use Spatie\Image\Image;
7			use Spatie\MediaLibrary\ResponsiveImages\WidthCalculator\WidthCalculator;
8
9			class FileSizeOptimizedWidthCalculator implements WidthCalculator
10			{
11			public function calculateWidthsFromFile(string $imagePath): Collection
12			{
13			$image = Image::load($imagePath);
14
15			$width = $image->getWidth();
16			$height = $image->getHeight();
17			$fileSize = filesize($imagePath);
18
19			return $this->calculateWidths($fileSize, $width, $height);
20			}
21
22			public function calculateWidths(int $fileSize, int $width, int $height): Collection
23			{
24			$targetWidths = collect();
25
26			$targetWidths->push($width);
27
28			$ratio = $height / $width;
29			$area = $width * $width * $ratio;
30
31			$predictedFileSize = $fileSize;
32			$pixelPrice = $predictedFileSize / $area;
33
34			while (true) {
35			$predictedFileSize *= 0.7;
36
37			$newWidth = (int)floor(sqrt(($predictedFileSize / $pixelPrice) / $ratio));
38
39			if ($this->finishedCalculating($predictedFileSize, $newWidth)) {
40			return $targetWidths;
41			}
42
43			$targetWidths->push($newWidth);
44			}
45			}
46
47			protected function finishedCalculating(int $predictedFileSize, int $newWidth): bool
48			{
49			if ($newWidth < 20) {
50			return true;
51			}
52
53			if ($predictedFileSize < (1024 * 10)) {
54			return true;
55			}
56
57			return false;
58			}
59			}
60

spatie / laravel-medialibrary

Push — master ( c2f76d...03586b )

calculateWidths() B

Complexity

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Duplication

Importance

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