TelegramInlineView::pages() - Code Metrics - Inspection of "New template for Telegram Inline paginator" - whiteoctober/Pagerfanta - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#204)

by Vitor

created 2017-01-15 13:35 UTC

TelegramInlineView::pages() A

↳ Parent: TelegramInlineView

Complexity

Conditions	4
Paths	4

Size

Total Lines	10
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	4.1755

Importance

Changes

Metric	Value
dl	0
loc	10
ccs	7
cts	9
cp	0.7778
rs	9.2
c	0
b	0
f	0
cc	4
eloc	5
nc	4
nop	0
crap	4.1755

<?php
namespace Pagerfanta\View;
use Pagerfanta\View\ViewInterface;
use Pagerfanta\PagerfantaInterface;
use Pagerfanta\View\Template\TemplateInterface;
use TelegramPagerfanta\View\Template\TelegramInlineTemplate;

class TelegramInlineView implements ViewInterface
{
    /**
     * @var TelegramInlineTemplate
     */
    private $template;

    /**
     * @var PagerfantaInterface
     */
    private $pagerfanta;

    private $currentPage;
    private $nbPages;

    private $startPage;
    private $endPage;
    private $maxPerPage;
    
    private $buttons;
    
    private $maxButtons;

    public function __construct(TemplateInterface $template = null)
    {
        $this->template = $template ?: $this->createDefaultTemplate();

        $this->buttons = new \stdClass();
    }

    protected function createDefaultTemplate()
    {
        return new \Pagerfanta\View\Template\TelegramInlineTemplate();
    }

    public function render(PagerfantaInterface $pagerfanta, $routeGenerator, array $options = array())
    {
        $this->initializePagerfanta($pagerfanta);
        $this->initializeOptions($options);

        $this->configureTemplate($routeGenerator, $options);

        return $this->generatePages();
    }

    private function initializePagerfanta(PagerfantaInterface $pagerfanta)
    {
        $this->pagerfanta = $pagerfanta;

        $this->currentPage = $pagerfanta->getCurrentPage();
        $this->nbPages = $pagerfanta->getNbPages();
        $this->maxPerPage = $pagerfanta->getMaxPerPage();
    }

    private function initializeOptions($options)
    {
        $this->proximity = isset($options['proximity']) ?
class MyClass { }

$x = new MyClass();
$x->foo = true;
                           (int) $options['proximity'] :
                           $this->getDefaultProximity();
    }

    protected function getDefaultProximity()
    {
        $proximityEstimated = floor($this->maxPerPage / 2);
        if($proximityEstimated < 2) {
            $proximity = $proximityEstimated;
        } else {
            $proximity = 2;
        }
        return $proximity;
    }

    private function configureTemplate($routeGenerator, $options)
    {
        $this->template->setRouteGenerator($routeGenerator);
        $this->template->setOptions($options);
    }

    private function generatePages()
    {
        $this->calculateStartAndEndPage();

        $this->page($this->currentPage);
        $this->first();
        $this->last();
        $this->previous();
        $this->next();
        $this->pages();
        ksort($this->buttons->inline_keyboard[0]);
        $this->buttons->inline_keyboard[0] = array_values($this->buttons->inline_keyboard[0]);
        return (string)$this;
    }

    private function calculateStartAndEndPage()
    {
        $startPage = $this->currentPage - $this->proximity;
        $endPage = $this->currentPage + $this->proximity;

        if ($this->startPageUnderflow($startPage)) {
            $startPage = 1;
            $endPage = $this->maxPerPage;
            $endPage = $this->calculateEndPageForStartPageUnderflow($startPage, $endPage);
        }
        if ($this->endPageOverflow($endPage)) {
            $startPage = $this->calculateStartPageForEndPageOverflow($startPage, $endPage);
            $endPage = $this->nbPages;
        }

        $this->startPage = $startPage;
        $this->endPage = $endPage;
    }

    private function startPageUnderflow($startPage)
    {
        return $startPage < 1;
    }

    private function endPageOverflow($endPage)
    {
        return $endPage > $this->nbPages;
    }

    private function calculateEndPageForStartPageUnderflow($startPage, $endPage)
    {
        return min($endPage + (1 - $startPage), $this->nbPages);
    }

    private function calculateStartPageForEndPageOverflow($startPage, $endPage)
    {
        return max($startPage - ($endPage - $this->nbPages), 1);
    }

    private function previous()
    {
        if ($this->currentPage > $this->maxPerPage) {
            $prev = $this->startPage;
            if($this->startPage+$this->maxPerPage-1 >= $this->nbPages) {
                $prev--;
            }
            $this->pushNewButton(
                $this->template->previousEnabled($prev)
            );
        }
    }

    private function first()
    {
        if(!$this->pageExists(1)) {
            if($this->currentPage > $this->maxPerPage) {
                $this->pushNewButton(
                    $this->template->first()
                );
            } else {
                $this->page(1);
            }
        }
    }

    private function pages()
    {
        foreach (range($this->startPage, $this->endPage) as $page) {
            if(!$this->pageExists($page)) {
                if(count($this->buttons->inline_keyboard[0]) < $this->maxButtons) {
                    $this->page($page);
                }
            }
        }
    }

    private function page($page)
    {
        if ($page == $this->currentPage) {
            $this->pushNewButton(
                $this->template->current($page)
            );
        } else {
            $this->pushNewButton(
                $this->template->page($page)
            );
        }
    }
    
    private function pushNewButton(array $params) {
        $params = (object)$params;
        $page = $params->page;
        unset($params->page);
        $this->buttons->inline_keyboard[0][$page] = $params;
    }
    
    private function pageOfPreviousButton()

    {
        $keys = array_keys($this->buttons->inline_keyboard[0]);
        array_pop($keys);
        return array_pop($keys);
    }

    private function pageExists($page) {
        return isset($this->buttons->inline_keyboard[0][$page]);
    }

    private function toLast($n)

    {
        return $this->pagerfanta->getNbPages() - ($n - 1);
    }

    private function last()
    {
        if ($this->nbPages > $this->endPage) {
            if($this->nbPages - $this->endPage <= 1) {
                $this->pushNewButton(
                    $this->template->page($this->nbPages)
                );
            } else {
                if($this->endPage +2 >= $this->nbPages) {
                    $this->pushNewButton(
                        $this->template->page($this->nbPages)
                    );
                } else {
                    $this->pushNewButton(
                        $this->template->last($this->nbPages)
                    );
                }
            }
        }
    }

    private function next()
    {
        if ($this->pagerfanta->hasNextPage()) {
            $next = $this->endPage;
            if($this->pageExists($next) || $next == $this->maxPerPage) {
                $next++;
            }
            if($next < $this->nbPages) {
                $this->pushNewButton(
                    $this->template->nextEnabled($next)
                );
            } else {
                $this->pushNewButton(
                    $this->template->page($next)
                );
            }
        }
    }
    
    public function setMaxButtons($max)
    {
        $this->maxButtons = $max;
    }

    /**
     * {@inheritdoc}
     */
    public function getName()
    {
        return 'TelegramInline';
    }
    

    /**
     * Convert the collection to its string representation.
     *
     * @return string
     */
    public function __toString()
    {
        return json_encode($this->buttons, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
    }
}


1		<?php
2		namespace Pagerfanta\View;
3		use Pagerfanta\View\ViewInterface;
4		use Pagerfanta\PagerfantaInterface;
5		use Pagerfanta\View\Template\TemplateInterface;
6		use TelegramPagerfanta\View\Template\TelegramInlineTemplate;
7
8		class TelegramInlineView implements ViewInterface
9		{
10		/**
11		* @var TelegramInlineTemplate
12		*/
13		private $template;
14
15		/**
16		* @var PagerfantaInterface
17		*/
18		private $pagerfanta;
19
20		private $currentPage;
21		private $nbPages;
22
23		private $startPage;
24		private $endPage;
25		private $maxPerPage;
26
27		private $buttons;
28
29		private $maxButtons;
30
31	10	public function __construct(TemplateInterface $template = null)
32		{
33	10	$this->template = $template ?: $this->createDefaultTemplate();
		0 ignored issues – show Documentation Bug introduced 2016-04-24 23:16 UTC by Report Bug Copy Issue Report It seems like `$template ?: $this->createDefaultTemplate()` of type `object<Pagerfanta\View\T...late\TemplateInterface>` is incompatible with the declared type `object<TelegramPagerfant...TelegramInlineTemplate>` of property `$template`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
34	10	$this->buttons = new \stdClass();
35	10	}
36
37	10	protected function createDefaultTemplate()
38		{
39	10	return new \Pagerfanta\View\Template\TelegramInlineTemplate();
40		}
41
42	10	public function render(PagerfantaInterface $pagerfanta, $routeGenerator, array $options = array())
43		{
44	10	$this->initializePagerfanta($pagerfanta);
45	10	$this->initializeOptions($options);
46
47	10	$this->configureTemplate($routeGenerator, $options);
48
49	10	return $this->generatePages();
50		}
51
52	10	private function initializePagerfanta(PagerfantaInterface $pagerfanta)
53		{
54	10	$this->pagerfanta = $pagerfanta;
55
56	10	$this->currentPage = $pagerfanta->getCurrentPage();
57	10	$this->nbPages = $pagerfanta->getNbPages();
58	10	$this->maxPerPage = $pagerfanta->getMaxPerPage();
59	10	}
60
61	10	private function initializeOptions($options)
62		{
63	10	$this->proximity = isset($options['proximity']) ?
		0 ignored issues – show Bug introduced 2016-04-24 23:16 UTC by Report Bug Copy Issue Report The property `proximity` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
64	10	(int) $options['proximity'] :
65	9	$this->getDefaultProximity();
66	10	}
67
68	9	protected function getDefaultProximity()
69		{
70	9	$proximityEstimated = floor($this->maxPerPage / 2);
71	9	if($proximityEstimated < 2) {
72		$proximity = $proximityEstimated;
73		} else {
74	9	$proximity = 2;
75		}
76	9	return $proximity;
77		}
78
79	10	private function configureTemplate($routeGenerator, $options)
80		{
81	10	$this->template->setRouteGenerator($routeGenerator);
82	10	$this->template->setOptions($options);
83	10	}
84
85	10	private function generatePages()
86		{
87	10	$this->calculateStartAndEndPage();
88
89	10	$this->page($this->currentPage);
90	10	$this->first();
91	10	$this->last();
92	10	$this->previous();
93	10	$this->next();
94	10	$this->pages();
95	10	ksort($this->buttons->inline_keyboard[0]);
96	10	$this->buttons->inline_keyboard[0] = array_values($this->buttons->inline_keyboard[0]);
97	10	return (string)$this;
98		}
99
100	10	private function calculateStartAndEndPage()
101		{
102	10	$startPage = $this->currentPage - $this->proximity;
103	10	$endPage = $this->currentPage + $this->proximity;
104
105	10	if ($this->startPageUnderflow($startPage)) {
106	2	$startPage = 1;
107	2	$endPage = $this->maxPerPage;
108	2	$endPage = $this->calculateEndPageForStartPageUnderflow($startPage, $endPage);
109	2	}
110	10	if ($this->endPageOverflow($endPage)) {
111	1	$startPage = $this->calculateStartPageForEndPageOverflow($startPage, $endPage);
112	1	$endPage = $this->nbPages;
113	1	}
114
115	10	$this->startPage = $startPage;
116	10	$this->endPage = $endPage;
117	10	}
118
119	10	private function startPageUnderflow($startPage)
120		{
121	10	return $startPage < 1;
122		}
123
124	10	private function endPageOverflow($endPage)
125		{
126	10	return $endPage > $this->nbPages;
127		}
128
129	2	private function calculateEndPageForStartPageUnderflow($startPage, $endPage)
130		{
131	2	return min($endPage + (1 - $startPage), $this->nbPages);
132		}
133
134	1	private function calculateStartPageForEndPageOverflow($startPage, $endPage)
135		{
136	1	return max($startPage - ($endPage - $this->nbPages), 1);
137		}
138
139	10	private function previous()
140		{
141	10	if ($this->currentPage > $this->maxPerPage) {
142	3	$prev = $this->startPage;
143	3	if($this->startPage+$this->maxPerPage-1 >= $this->nbPages) {
144	3	$prev--;
145	3	}
146	3	$this->pushNewButton(
147	3	$this->template->previousEnabled($prev)
148	3	);
149	3	}
150	10	}
151
152	10	private function first()
153		{
154	10	if(!$this->pageExists(1)) {
155	8	if($this->currentPage > $this->maxPerPage) {
156	3	$this->pushNewButton(
157	3	$this->template->first()
158	3	);
159	3	} else {
160	5	$this->page(1);
161		}
162	8	}
163	10	}
164
165	10	private function pages()
166		{
167	10	foreach (range($this->startPage, $this->endPage) as $page) {
168	10	if(!$this->pageExists($page)) {
169	10	if(count($this->buttons->inline_keyboard[0]) < $this->maxButtons) {
170		$this->page($page);
171		}
172	10	}
173	10	}
174	10	}
175
176	10	private function page($page)
177		{
178	10	if ($page == $this->currentPage) {
179	10	$this->pushNewButton(
180	10	$this->template->current($page)
181	10	);
182	10	} else {
183	5	$this->pushNewButton(
184	5	$this->template->page($page)
185	5	);
186		}
187	10	}
188
189	10	private function pushNewButton(array $params) {
190	10	$params = (object)$params;
191	10	$page = $params->page;
192	10	unset($params->page);
193	10	$this->buttons->inline_keyboard[0][$page] = $params;
194	10	}
195
196		private function pageOfPreviousButton()
		0 ignored issues – show Unused Code introduced 2016-04-25 15:15 UTC by Report Bug Copy Issue Report This method is not used, and could be removed. Loading history...
197		{
198		$keys = array_keys($this->buttons->inline_keyboard[0]);
199		array_pop($keys);
200		return array_pop($keys);
201		}
202
203	10	private function pageExists($page) {
204	10	return isset($this->buttons->inline_keyboard[0][$page]);
205		}
206
207		private function toLast($n)
		0 ignored issues – show Unused Code introduced 2016-04-24 23:16 UTC by Report Bug Copy Issue Report This method is not used, and could be removed. Loading history...
208		{
209		return $this->pagerfanta->getNbPages() - ($n - 1);
210		}
211
212	10	private function last()
213		{
214	10	if ($this->nbPages > $this->endPage) {
215	9	if($this->nbPages - $this->endPage <= 1) {
216	1	$this->pushNewButton(
217	1	$this->template->page($this->nbPages)
218	1	);
219	1	} else {
220	8	if($this->endPage +2 >= $this->nbPages) {
221	1	$this->pushNewButton(
222	1	$this->template->page($this->nbPages)
223	1	);
224	1	} else {
225	7	$this->pushNewButton(
226	7	$this->template->last($this->nbPages)
227	7	);
228		}
229		}
230	9	}
231	10	}
232
233	10	private function next()
234		{
235	10	if ($this->pagerfanta->hasNextPage()) {
236	9	$next = $this->endPage;
237	9	if($this->pageExists($next) \|\| $next == $this->maxPerPage) {
238	2	$next++;
239	2	}
240	9	if($next < $this->nbPages) {
241	9	$this->pushNewButton(
242	9	$this->template->nextEnabled($next)
243	9	);
244	9	} else {
245		$this->pushNewButton(
246		$this->template->page($next)
247		);
248		}
249	9	}
250	10	}
251
252		public function setMaxButtons($max)
253		{
254		$this->maxButtons = $max;
255		}
256
257		/**
258		* {@inheritdoc}
259		*/
260		public function getName()
261		{
262		return 'TelegramInline';
263		}
264
265
266		/**
267		* Convert the collection to its string representation.
268		*
269		* @return string
270		*/
271	10	public function __toString()
272		{
273	10	return json_encode($this->buttons, JSON_UNESCAPED_UNICODE \| JSON_UNESCAPED_SLASHES);
274		}
275		}
276

whiteoctober / Pagerfanta

Pull Request — master (#204)

TelegramInlineView::pages() A

Complexity

Size

Duplication

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