IndexManager::buildCompositeIndexes() - Code Metrics - Inspection of "Minor fixes and refactoring" - ColonelBlimp/html-go - Measure and Improve Code Quality continuously with Scrutinizer

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Push — main ( d16942...b9546c )

by Marc

created 2021-06-12 12:10 UTC

IndexManager::buildCompositeIndexes() A

↳ Parent: IndexManager

Complexity

Conditions	4
Paths	4

Size

Total Lines	19
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	4
eloc	15
nc	4
nop	0
dl	0
loc	19
rs	9.7666
c	0
b	0
f	0

<?php declare(strict_types=1);
namespace html_go\indexing;

use InvalidArgumentException;
use html_go\exceptions\InternalException;

final class IndexManager extends AbstractIndexer
{
    /** @var array<string, \stdClass> $catIndex */
    private array $catIndex;

    /** @var array<string, \stdClass> $pageIndex */
    private array $pageIndex;

    /** @var array<string, \stdClass> $postIndex */
    private array $postIndex;

    /** @var array<mixed> $menuIndex */
    private array $menuIndex;

    /**
     * A tag is NOT represented by any file on the physical filessytem.
     * @var array<string, \stdClass> $tagIndex
     */
    private array $tagIndex;

    /**
     * The slug index holds references to files on the physical filesystem.,
     * and is a combination of the catIndex, postIndex and pageIndex
     * @var array<string, \stdClass> $slugIndex
     */
    private array $slugIndex;

    /** @var array<string, \stdClass> $tag2postIndex */
    private array $tag2postIndex;

    /** @var array<string, \stdClass> $cat2postIndex */
    private array $cat2postIndex;

    /**
     * IndexManager constructor.
     * @param string $parentDir The parent directory for the content directory.
     * @throws \InvalidArgumentException If the parent directory is invalid.
     * @throws InternalException
     */
    public function __construct(string $parentDir) {
        parent::__construct($parentDir);
        $this->initialize();
    }

    /**
     * Rebuild all the indexes.
     */
    public function reindex(): void {
        $this->catIndex = $this->buildCategoryIndex();
        $pageMenuIndex = $this->buildPageAndMenuIndexes();
        $this->pageIndex = $pageMenuIndex[0];
        $this->menuIndex = $pageMenuIndex[1];
        $this->postIndex = $this->buildPostIndex();
        $compositeIndex = $this->buildCompositeIndexes();
        $this->tagIndex = $compositeIndex[0];
        $this->tag2postIndex = $compositeIndex[1];
        $this->cat2postIndex = $compositeIndex[2];
        $this->slugIndex = \array_merge($this->postIndex, $this->catIndex, $this->pageIndex, $this->tagIndex);
    }

    /**
     * Returns an object representing an element in the index.
     * @param string $key
     * @throws \InvalidArgumentException If the given $key does not exist in the index.
     * @return \stdClass
     */
    public function getElementFromSlugIndex(string $key): \stdClass {
        if (!isset($this->slugIndex[$key])) {
            throw new InvalidArgumentException("Key does not exist in the slugIndex! Use 'elementExists()' before calling this method.");
        }
        return $this->slugIndex[$key];
    }

    /**
     * Check if an key exists in the <b>slug index</b>.
     * @param string $key
     * @return bool <code>true</code> if exists, otherwise <code>false</code>
     */
    public function elementExists(string $key): bool {
        return isset($this->slugIndex[$key]);
    }

    /**
     * Return the posts index.
     * @return array<string, \stdClass>
     */
    public function getPostsIndex(): array {
        return $this->postIndex;
    }

    /**
     * Return the category index.
     * @return array<string, \stdClass>
     */
    public function getCategoriesIndex(): array {
        return $this->catIndex;
    }

    /**
     * Return the tag index.
     * @return array<string, \stdClass>
     */
    public function getTagIndex(): array {
        return $this->tagIndex;
    }

    /**
     * Return the menus index.
     * @return array<mixed>
     */
    public function getMenusIndex(): array {
        return $this->menuIndex;
    }

    /**
     * Return the tag index.
     * @return array<string, \stdClass>
     */
    public function getPageIndex(): array {
        return $this->pageIndex;
    }

    private function initialize(): void {
        if ((\is_dir($this->parentDir.DS.'cache'.DS.'indexes')) === false) {
            $dir = $this->parentDir.DS.'cache'.DS.'indexes';
            if (\mkdir($dir, MODE, true) === false) {
                throw new InternalException("Unable to create cache/indexes directory [$dir]"); // @codeCoverageIgnore
            }
            $this->reindex();
        } else {
            $this->catIndex = $this->loadIndex($this->catInxFile);
            $this->pageIndex = $this->loadIndex($this->pageInxFile);
            $this->postIndex = $this->loadIndex($this->postInxFile);
            $this->tagIndex = $this->loadIndex($this->tagInxFile);
            $this->cat2postIndex = $this->loadIndex($this->cat2postInxFile);
            $this->tag2postIndex = $this->loadIndex($this->tag2postInxFile);
            $this->menuIndex = $this->loadIndex($this->menuInxFile);
            $this->slugIndex = \array_merge($this->postIndex, $this->catIndex, $this->pageIndex, $this->tagIndex);
        }
    }

    /**
     * @return array<string, \stdClass>
     */
    private function buildCategoryIndex(): array {
        $index = [];
        foreach ($this->parseDirectory($this->commonDir.DS.'category'.DS.'*'.CONTENT_FILE_EXT) as $filepath) {
            $root = \substr($filepath, \strlen($this->commonDir) + 1);
            $key = \str_replace(DS, FWD_SLASH, \substr($root, 0, \strlen($root) - CONTENT_FILE_EXT_LEN));
            $index[$key] = $this->createElement($key, $filepath, ENUM_CATEGORY);
        }
        $this->writeIndex($this->catInxFile, $index);
        return $index;
    }

    /**
     * Builds two indexes: menu and post indexes.
     * @return array<mixed>
     */
    private function buildPageAndMenuIndexes(): array {
        $pageDir = $this->commonDir.DS.'pages';
        $len = \strlen($pageDir) + 1;
        $pages = $this->scanDirectory($pageDir);
        \sort($pages);
        $menuInx = [];
        $pageInx = [];
        foreach ($pages as $filepath) {
            $location = \substr($filepath, $len);
            $key = \str_replace(DS, FWD_SLASH, \substr($location, 0, (\strlen($location) - CONTENT_FILE_EXT_LEN)));
            if (\str_ends_with($key, '/index')) {
                $key = substr($key, 0, \strlen($key) - 6);
            } else {
                if ($key === 'index') {
                    $key = FWD_SLASH;
                }
            }
            $pageInx[$key] = $this->createElement($key, $filepath, ENUM_PAGE);
            $menuInx = $this->mergeToMenuIndex($menuInx, $this->buildMenus($key, $filepath));
        }

        // Add Tag landing page
        $filepath = $this->commonDir.DS.'landing'.DS.'tags'.DS.'index'.CONTENT_FILE_EXT;
        $key = TAG_INDEX_KEY;
        $pageInx[$key] = $this->createElement($key, $filepath, ENUM_TAG);
        $menuInx = $this->mergeToMenuIndex($menuInx, $this->buildMenus($key, $filepath));

        // Add Category landing page
        $filepath = $this->commonDir.DS.'landing'.DS.'category'.DS.'index'.CONTENT_FILE_EXT;
        $key = CAT_INDEX_KEY;
        $pageInx[$key] = $this->createElement($key, $filepath, ENUM_CATEGORY);
        $menuInx = $this->mergeToMenuIndex($menuInx, $this->buildMenus($key, $filepath));

        // Add Blog (posts) landing page
        $filepath = $this->commonDir.DS.'landing'.DS.'blog'.DS.'index'.CONTENT_FILE_EXT;
        $key = BLOG_INDEX_KEY;
        $pageInx[$key] = $this->createElementClass($key, $filepath, ENUM_POST);
        $menuInx = $this->mergeToMenuIndex($menuInx, $this->buildMenus($key, $filepath));

        $this->writeIndex($this->pageInxFile, $pageInx);
        $menuInx = $this->orderMenuEntries($menuInx);
        $this->writeIndex($this->menuInxFile, $menuInx);
        return [$pageInx, $menuInx];
    }

    /**
     * Builds the post index.
     * @return array<string, \stdClass>
     */
    private function buildPostIndex(): array {
        $index = [];
        foreach ($this->parseDirectory($this->userDataDir.DS.'*'.DS.'posts'.DS.'*'.DS.'*'.DS.'*'.CONTENT_FILE_EXT) as $filepath) {
            $key = \pathinfo($filepath, PATHINFO_FILENAME);
            $element = $this->createElement(/** @scrutinizer ignore-type */ $key, $filepath, ENUM_POST);
            $index[(string)$element->key] = $element;
        }
        $this->writeIndex($this->postInxFile, $index);
        return $index;
    }

    /**
     * Reads the given file and creates an array of menus in which this
     * resource is listed.
     * @return array<mixed>
     */
    private function buildMenus(string $key, string $filepath): array {
        if (empty($key)) {
            throw new \InvalidArgumentException("Key is empty for [$filepath]"); // @codeCoverageIgnore
        }
        if (($json = \file_get_contents($filepath)) === false) {
            throw new InternalException("file_get_contents() failed reading [$filepath]"); // @codeCoverageIgnore
        }
        $data = \json_decode($json, true);
        $menus = [];
        if (isset($data['menus'])) {
            foreach ($data['menus'] as $name => $defs) {
                $node = new \stdClass();
                $node->key = $key;
                foreach ($defs as $label => $value) {
                    $node->$label = $value;
                }
                $menus[$name][] = $node;
            }
        }
        return $menus;
    }

    /**
     * Does a <code>usort</code> on the <code>weight</code> property.
     * @param array<mixed> $index the unsorted array
     * @return array<mixed> the sorted array
     */
    private function orderMenuEntries(array $index): array {
        foreach ($index as $name => $defs) {
            \usort($defs, function($a, $b): int {
                if ($a->weight === $b->weight) {
                    return 0;
                }
                return  $a->weight > $b->weight ? 1 : -1;
            });
            $index[$name] = $defs;
        }
        return $index;
    }

    /**
     * Builds three indexes: 'category 2 posts', 'tag 2 posts' and tag index.
     * @throws InternalException
     * @return array<mixed>
     */
    private function buildCompositeIndexes(): array {
        $tagInx = [];
        $tag2PostsIndex = [];
        $cat2PostIndex = [];
        foreach ($this->postIndex as $post) {
            if (!isset($post->key, $post->tags, $post->category)) {
                throw new InternalException("Invalid format of index element: "./** @scrutinizer ignore-type */print_r($post, true)); // @codeCoverageIgnore
            }
            foreach ($post->tags as $tag) {
                $key = 'tag'.FWD_SLASH.(string)$tag;
                $tagInx[$key] = $this->createElementClass($key, EMPTY_VALUE, ENUM_TAG);
                $tag2PostsIndex[$key][] = $post->key;
            }
            $cat2PostIndex[$post->category] = $post->key;
        }
        $this->writeIndex($this->tagInxFile, $tagInx);
        $this->writeIndex($this->tag2postInxFile, $tag2PostsIndex);
        $this->writeIndex($this->cat2postInxFile, $cat2PostIndex);
        return [$tagInx, $tag2PostsIndex, $cat2PostIndex];
    }

    /**
     * Merge the given menu array into the master menu index returning the new
     * master menu index.
     * @param array<mixed> $initial
     * @param array<mixed> $toMerge The menu array to be merged.
     * @return array<mixed>
     */
    private function mergeToMenuIndex(array $initial, array $toMerge): array {
        foreach ($toMerge as $name => $def) {
            if (isset($initial[$name])) {
                $nodes = $initial[$name];
                $initial[$name] = \array_merge($nodes, $def);
            } else {
                $initial[$name] = $def;
            }
        }
        return $initial;
    }
}


1			<?php declare(strict_types=1);
2			namespace html_go\indexing;
3
4			use InvalidArgumentException;
5			use html_go\exceptions\InternalException;
6
7			final class IndexManager extends AbstractIndexer
8			{
9			/** @var array<string, \stdClass> $catIndex */
10			private array $catIndex;
11
12			/** @var array<string, \stdClass> $pageIndex */
13			private array $pageIndex;
14
15			/** @var array<string, \stdClass> $postIndex */
16			private array $postIndex;
17
18			/** @var array<mixed> $menuIndex */
19			private array $menuIndex;
20
21			/**
22			* A tag is NOT represented by any file on the physical filessytem.
23			* @var array<string, \stdClass> $tagIndex
24			*/
25			private array $tagIndex;
26
27			/**
28			* The slug index holds references to files on the physical filesystem.,
29			* and is a combination of the catIndex, postIndex and pageIndex
30			* @var array<string, \stdClass> $slugIndex
31			*/
32			private array $slugIndex;
33
34			/** @var array<string, \stdClass> $tag2postIndex */
35			private array $tag2postIndex;
36
37			/** @var array<string, \stdClass> $cat2postIndex */
38			private array $cat2postIndex;
39
40			/**
41			* IndexManager constructor.
42			* @param string $parentDir The parent directory for the content directory.
43			* @throws \InvalidArgumentException If the parent directory is invalid.
44			* @throws InternalException
45			*/
46			public function __construct(string $parentDir) {
47			parent::__construct($parentDir);
48			$this->initialize();
49			}
50
51			/**
52			* Rebuild all the indexes.
53			*/
54			public function reindex(): void {
55			$this->catIndex = $this->buildCategoryIndex();
56			$pageMenuIndex = $this->buildPageAndMenuIndexes();
57			$this->pageIndex = $pageMenuIndex[0];
58			$this->menuIndex = $pageMenuIndex[1];
59			$this->postIndex = $this->buildPostIndex();
60			$compositeIndex = $this->buildCompositeIndexes();
61			$this->tagIndex = $compositeIndex[0];
62			$this->tag2postIndex = $compositeIndex[1];
63			$this->cat2postIndex = $compositeIndex[2];
64			$this->slugIndex = \array_merge($this->postIndex, $this->catIndex, $this->pageIndex, $this->tagIndex);
65			}
66
67			/**
68			* Returns an object representing an element in the index.
69			* @param string $key
70			* @throws \InvalidArgumentException If the given $key does not exist in the index.
71			* @return \stdClass
72			*/
73			public function getElementFromSlugIndex(string $key): \stdClass {
74			if (!isset($this->slugIndex[$key])) {
75			throw new InvalidArgumentException("Key does not exist in the slugIndex! Use 'elementExists()' before calling this method.");
76			}
77			return $this->slugIndex[$key];
78			}
79
80			/**
81			* Check if an key exists in the <b>slug index</b>.
82			* @param string $key
83			* @return bool <code>true</code> if exists, otherwise <code>false</code>
84			*/
85			public function elementExists(string $key): bool {
86			return isset($this->slugIndex[$key]);
87			}
88
89			/**
90			* Return the posts index.
91			* @return array<string, \stdClass>
92			*/
93			public function getPostsIndex(): array {
94			return $this->postIndex;
95			}
96
97			/**
98			* Return the category index.
99			* @return array<string, \stdClass>
100			*/
101			public function getCategoriesIndex(): array {
102			return $this->catIndex;
103			}
104
105			/**
106			* Return the tag index.
107			* @return array<string, \stdClass>
108			*/
109			public function getTagIndex(): array {
110			return $this->tagIndex;
111			}
112
113			/**
114			* Return the menus index.
115			* @return array<mixed>
116			*/
117			public function getMenusIndex(): array {
118			return $this->menuIndex;
119			}
120
121			/**
122			* Return the tag index.
123			* @return array<string, \stdClass>
124			*/
125			public function getPageIndex(): array {
126			return $this->pageIndex;
127			}
128
129			private function initialize(): void {
130			if ((\is_dir($this->parentDir.DS.'cache'.DS.'indexes')) === false) {
131			$dir = $this->parentDir.DS.'cache'.DS.'indexes';
132			if (\mkdir($dir, MODE, true) === false) {
133			throw new InternalException("Unable to create cache/indexes directory [$dir]"); // @codeCoverageIgnore
134			}
135			$this->reindex();
136			} else {
137			$this->catIndex = $this->loadIndex($this->catInxFile);
138			$this->pageIndex = $this->loadIndex($this->pageInxFile);
139			$this->postIndex = $this->loadIndex($this->postInxFile);
140			$this->tagIndex = $this->loadIndex($this->tagInxFile);
141			$this->cat2postIndex = $this->loadIndex($this->cat2postInxFile);
142			$this->tag2postIndex = $this->loadIndex($this->tag2postInxFile);
143			$this->menuIndex = $this->loadIndex($this->menuInxFile);
144			$this->slugIndex = \array_merge($this->postIndex, $this->catIndex, $this->pageIndex, $this->tagIndex);
145			}
146			}
147
148			/**
149			* @return array<string, \stdClass>
150			*/
151			private function buildCategoryIndex(): array {
152			$index = [];
153			foreach ($this->parseDirectory($this->commonDir.DS.'category'.DS.'*'.CONTENT_FILE_EXT) as $filepath) {
154			$root = \substr($filepath, \strlen($this->commonDir) + 1);
155			$key = \str_replace(DS, FWD_SLASH, \substr($root, 0, \strlen($root) - CONTENT_FILE_EXT_LEN));
156			$index[$key] = $this->createElement($key, $filepath, ENUM_CATEGORY);
157			}
158			$this->writeIndex($this->catInxFile, $index);
159			return $index;
160			}
161
162			/**
163			* Builds two indexes: menu and post indexes.
164			* @return array<mixed>
165			*/
166			private function buildPageAndMenuIndexes(): array {
167			$pageDir = $this->commonDir.DS.'pages';
168			$len = \strlen($pageDir) + 1;
169			$pages = $this->scanDirectory($pageDir);
170			\sort($pages);
171			$menuInx = [];
172			$pageInx = [];
173			foreach ($pages as $filepath) {
174			$location = \substr($filepath, $len);
175			$key = \str_replace(DS, FWD_SLASH, \substr($location, 0, (\strlen($location) - CONTENT_FILE_EXT_LEN)));
176			if (\str_ends_with($key, '/index')) {
177			$key = substr($key, 0, \strlen($key) - 6);
178			} else {
179			if ($key === 'index') {
180			$key = FWD_SLASH;
181			}
182			}
183			$pageInx[$key] = $this->createElement($key, $filepath, ENUM_PAGE);
184			$menuInx = $this->mergeToMenuIndex($menuInx, $this->buildMenus($key, $filepath));
185			}
186
187			// Add Tag landing page
188			$filepath = $this->commonDir.DS.'landing'.DS.'tags'.DS.'index'.CONTENT_FILE_EXT;
189			$key = TAG_INDEX_KEY;
190			$pageInx[$key] = $this->createElement($key, $filepath, ENUM_TAG);
191			$menuInx = $this->mergeToMenuIndex($menuInx, $this->buildMenus($key, $filepath));
192
193			// Add Category landing page
194			$filepath = $this->commonDir.DS.'landing'.DS.'category'.DS.'index'.CONTENT_FILE_EXT;
195			$key = CAT_INDEX_KEY;
196			$pageInx[$key] = $this->createElement($key, $filepath, ENUM_CATEGORY);
197			$menuInx = $this->mergeToMenuIndex($menuInx, $this->buildMenus($key, $filepath));
198
199			// Add Blog (posts) landing page
200			$filepath = $this->commonDir.DS.'landing'.DS.'blog'.DS.'index'.CONTENT_FILE_EXT;
201			$key = BLOG_INDEX_KEY;
202			$pageInx[$key] = $this->createElementClass($key, $filepath, ENUM_POST);
203			$menuInx = $this->mergeToMenuIndex($menuInx, $this->buildMenus($key, $filepath));
204
205			$this->writeIndex($this->pageInxFile, $pageInx);
206			$menuInx = $this->orderMenuEntries($menuInx);
207			$this->writeIndex($this->menuInxFile, $menuInx);
208			return [$pageInx, $menuInx];
209			}
210
211			/**
212			* Builds the post index.
213			* @return array<string, \stdClass>
214			*/
215			private function buildPostIndex(): array {
216			$index = [];
217			foreach ($this->parseDirectory($this->userDataDir.DS.''.DS.'posts'.DS.''.DS.''.DS.''.CONTENT_FILE_EXT) as $filepath) {
218			$key = \pathinfo($filepath, PATHINFO_FILENAME);
219			$element = $this->createElement(/** @scrutinizer ignore-type */ $key, $filepath, ENUM_POST);
220			$index[(string)$element->key] = $element;
221			}
222			$this->writeIndex($this->postInxFile, $index);
223			return $index;
224			}
225
226			/**
227			* Reads the given file and creates an array of menus in which this
228			* resource is listed.
229			* @return array<mixed>
230			*/
231			private function buildMenus(string $key, string $filepath): array {
232			if (empty($key)) {
233			throw new \InvalidArgumentException("Key is empty for [$filepath]"); // @codeCoverageIgnore
234			}
235			if (($json = \file_get_contents($filepath)) === false) {
236			throw new InternalException("file_get_contents() failed reading [$filepath]"); // @codeCoverageIgnore
237			}
238			$data = \json_decode($json, true);
239			$menus = [];
240			if (isset($data['menus'])) {
241			foreach ($data['menus'] as $name => $defs) {
242			$node = new \stdClass();
243			$node->key = $key;
244			foreach ($defs as $label => $value) {
245			$node->$label = $value;
246			}
247			$menus[$name][] = $node;
248			}
249			}
250			return $menus;
251			}
252
253			/**
254			* Does a <code>usort</code> on the <code>weight</code> property.
255			* @param array<mixed> $index the unsorted array
256			* @return array<mixed> the sorted array
257			*/
258			private function orderMenuEntries(array $index): array {
259			foreach ($index as $name => $defs) {
260			\usort($defs, function($a, $b): int {
261			if ($a->weight === $b->weight) {
262			return 0;
263			}
264			return $a->weight > $b->weight ? 1 : -1;
265			});
266			$index[$name] = $defs;
267			}
268			return $index;
269			}
270
271			/**
272			* Builds three indexes: 'category 2 posts', 'tag 2 posts' and tag index.
273			* @throws InternalException
274			* @return array<mixed>
275			*/
276			private function buildCompositeIndexes(): array {
277			$tagInx = [];
278			$tag2PostsIndex = [];
279			$cat2PostIndex = [];
280			foreach ($this->postIndex as $post) {
281			if (!isset($post->key, $post->tags, $post->category)) {
282			throw new InternalException("Invalid format of index element: "./** @scrutinizer ignore-type */print_r($post, true)); // @codeCoverageIgnore
283			}
284			foreach ($post->tags as $tag) {
285			$key = 'tag'.FWD_SLASH.(string)$tag;
286			$tagInx[$key] = $this->createElementClass($key, EMPTY_VALUE, ENUM_TAG);
287			$tag2PostsIndex[$key][] = $post->key;
288			}
289			$cat2PostIndex[$post->category] = $post->key;
290			}
291			$this->writeIndex($this->tagInxFile, $tagInx);
292			$this->writeIndex($this->tag2postInxFile, $tag2PostsIndex);
293			$this->writeIndex($this->cat2postInxFile, $cat2PostIndex);
294			return [$tagInx, $tag2PostsIndex, $cat2PostIndex];
295			}
296
297			/**
298			* Merge the given menu array into the master menu index returning the new
299			* master menu index.
300			* @param array<mixed> $initial
301			* @param array<mixed> $toMerge The menu array to be merged.
302			* @return array<mixed>
303			*/
304			private function mergeToMenuIndex(array $initial, array $toMerge): array {
305			foreach ($toMerge as $name => $def) {
306			if (isset($initial[$name])) {
307			$nodes = $initial[$name];
308			$initial[$name] = \array_merge($nodes, $def);
309			} else {
310			$initial[$name] = $def;
311			}
312			}
313			return $initial;
314			}
315			}
316

ColonelBlimp / html-go

Push — main ( d16942...b9546c )

IndexManager::buildCompositeIndexes() A

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