CodeDumper::dumpCommands() - Code Metrics - Inspection of "Fixes #19: Moved timeOfRecording from event to hea..." - EventSaucePHP/EventSauce - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#21)

by Frank

created 2018-03-13 18:06 UTC

CodeDumper::dumpCommands() A

↳ Parent: CodeDumper

Complexity

Conditions	2
Paths	2

Size

Total Lines	16
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	16
ccs	7
cts	7
cp	1
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	8
nc	2
nop	1
crap	2

<?php

namespace EventSauce\EventSourcing\CodeGeneration;

use EventSauce\EventSourcing\Event;
use LogicException;
use const null;
use function array_filter;
use function join;
use function sprintf;
use function ucfirst;
use function var_export;

class CodeDumper
{
    /**
     * @var DefinitionGroup
     */
    private $definitionGroup;

    public function dump(DefinitionGroup $definitionGroup, bool $withHelpers = true): string
    {
        $this->definitionGroup = $definitionGroup;
        $eventsCode = $this->dumpEvents($definitionGroup->events(), $withHelpers);
        $commandCode = $this->dumpCommands($definitionGroup->commands());
        $namespace = $definitionGroup->namespace();
        $allCode = join(array_filter([$eventsCode, $commandCode]), "\n\n");

        return <<<EOF
<?php

namespace $namespace;

use EventSauce\\EventSourcing\\Event;
use EventSauce\\EventSourcing\\PointInTime;

$allCode

EOF;
    }

    private function dumpEvents(array $events, bool $withHelpers): string
    {
        $code = [];

        if (empty($events)) {
            return '';
        }

        foreach ($events as $event) {
            $name = $event->name();
            $fields = $this->dumpFields($event);
            $constructor = $this->dumpConstructor($event);
            $methods = $this->dumpMethods($event);
            $deserializer = $this->dumpSerializationMethods($event);
            $testHelpers = $withHelpers ? $this->dumpTestHelpers($event) : '';

            $code[] = <<<EOF
final class $name implements Event
{
$fields$constructor$methods$deserializer

$testHelpers}


EOF;
        }

        return rtrim(join('', $code));
    }

    private function dumpFields(DefinitionWithFields $definition): string
    {
        $fields = $this->fieldsFromDefinition($definition);
        $code = [];
        $code[] = <<<EOF

EOF;


        foreach ($fields as $field) {
            $name = $field['name'];
            $type = $field['type'];

            $code[] = <<<EOF
    /**
     * @var $type
     */
    private \$$name;


EOF;

        }

        return join('', $code);
    }

    private function dumpConstructor(DefinitionWithFields $definition): string
    {
        $arguments = [];
        $assignments = [];
        $fields = $this->fieldsFromDefinition($definition);

        foreach ($fields as $field) {
            $arguments[] = sprintf('        %s $%s', $field['type'], $field['name']);
            $assignments[] = sprintf('        $this->%s = $%s;', $field['name'], $field['name']);
        }

        $arguments = join(",\n", $arguments);
        $assignments = join("\n", $assignments);


        return <<<EOF
    public function __construct(
$arguments
    ) {
$assignments
    }


EOF;

    }

    private function dumpMethods(DefinitionWithFields $command): string
    {
        $methods = [];

        foreach ($this->fieldsFromDefinition($command) as $field) {
            $methods[] = <<<EOF
    public function {$field['name']}(): {$field['type']}
    {
        return \$this->{$field['name']};
    }


EOF;
        }

        return empty($methods) ? '' : rtrim(join('', $methods)) . "\n\n";
    }

    private function dumpSerializationMethods(EventDefinition $event)
    {
        $name = $event->name();
        $arguments = [];
        $serializers = [];

        foreach ($this->fieldsFromDefinition($event) as $field) {
            $parameter = sprintf('$payload[\'%s\']', $field['name']);
            $template = $event->deserializerForField($field['name'])
                ?: $event->deserializerForType($field['type']);
            $arguments[] = trim(strtr($template, ['{type}' => $field['type'], '{param}' => $parameter]));

            $property = sprintf('$this->%s', $field['name']);
            $template = $event->serializerForField($field['name'])
                ?: $event->serializerForType($field['type']);
            $template = sprintf("'%s' => %s", $field['name'], $template);
            $serializers[] = trim(strtr($template, ['{type}' => $field['type'], '{param}' => $property]));
        }

        $arguments = preg_replace('/^.{2,}$/m', '            $0', join(",\n", $arguments));

        if ( ! empty($arguments)) {
            $arguments = "\n$arguments";
        }

        $serializers = preg_replace('/^.{2,}$/m', '            $0', join(",\n", $serializers));

        if ( ! empty($serializers)) {
            $serializers = "\n            $serializers,\n        ";
        }

        return <<<EOF
    public static function fromPayload(array \$payload): Event
    {
        return new $name($arguments);
    }

    public function toPayload(): array
    {
        return [$serializers];
    }
EOF;


    }

    private function dumpTestHelpers(EventDefinition $event): string
    {
        $constructor = [];
        $constructorArguments = '';
        $constructorValues = [];
        $helpers = [];

        foreach ($this->fieldsFromDefinition($event) as $field) {
            if ($field['example'] === null) {
                $constructor[] = ucfirst($field['name']);

                if ($constructorArguments !== '') {
                    $constructorArguments .= ', ';
                }

                $constructorArguments .= sprintf('%s $%s', $field['type'], $field['name']);
                $constructorValues[] = sprintf('$%s', $field['name']);
            } else {
                $constructorValues[] = $this->dumpConstructorValue($field, $event);
                $method = sprintf('with%s', ucfirst($field['name']));
                $helpers[] = <<<EOF
    /**
     * @codeCoverageIgnore
     */
    public function $method({$field['type']} \${$field['name']}): {$event->name()}
    {
        \$this->{$field['name']} = \${$field['name']};

        return \$this;
    }


EOF;
            }
        }

        $constructor = sprintf('with%s', join('And', $constructor));
        $constructorValues = join(",\n            ", $constructorValues);
        $helpers[] = <<<EOF
    public static function $constructor($constructorArguments): {$event->name()}
    {
        return new {$event->name()}(
            $constructorValues
        );
    }


EOF;


        return join('', $helpers);
    }

    private function dumpConstructorValue(array $field, EventDefinition $event): string
    {
        $parameter = rtrim($field['example']);

        if (gettype($parameter) === $field['type']) {
            $parameter = var_export($parameter, true);
        }

        $template = $event->deserializerForField($field['name'])
            ?: $event->deserializerForType($field['type']);

        return rtrim(strtr($template, ['{type}' => $field['type'], '{param}' => $parameter]));
    }

    /**
     * @param CommandDefinition[] $commands
     * @return string
     */
    private function dumpCommands(array $commands): string
    {
        $code = [];

        foreach ($commands as $command) {
            $code[] = <<<EOF
final class {$command->name()}
{
{$this->dumpFields($command)}{$this->dumpConstructor($command)}{$this->dumpMethods($command)}}


EOF;
        }

        return rtrim(join('', $code));
    }

    /**
     * @param DefinitionWithFields $definition
     * @return array
     */
    private function fieldsFromDefinition(DefinitionWithFields $definition): array
    {
        $fields = $this->fieldsFrom($definition->fieldsFrom());

        foreach ($definition->fields() as $field) {
            array_push($fields, $field);
        }

        return $fields;
    }

    private function fieldsFrom(string $fieldsFrom): array
    {
        if (empty($fieldsFrom)) {
            return [];
        }

        foreach ($this->definitionGroup->events() as $event) {
            if ($event->name() === $fieldsFrom) {
                return $event->fields();
            }
        }

        foreach ($this->definitionGroup->commands() as $command) {
            if ($command->name() === $fieldsFrom) {
                return $command->fields();
            }
        }

        throw new LogicException("Could not inherit fields from {$fieldsFrom}.");
    }
}

1		<?php
2
3		namespace EventSauce\EventSourcing\CodeGeneration;
4
5		use EventSauce\EventSourcing\Event;
6		use LogicException;
7		use const null;
8		use function array_filter;
9		use function join;
10		use function sprintf;
11		use function ucfirst;
12		use function var_export;
13
14		class CodeDumper
15		{
16		/**
17		* @var DefinitionGroup
18		*/
19		private $definitionGroup;
20
21	5	public function dump(DefinitionGroup $definitionGroup, bool $withHelpers = true): string
22		{
23	5	$this->definitionGroup = $definitionGroup;
24	5	$eventsCode = $this->dumpEvents($definitionGroup->events(), $withHelpers);
25	5	$commandCode = $this->dumpCommands($definitionGroup->commands());
26	4	$namespace = $definitionGroup->namespace();
27	4	$allCode = join(array_filter([$eventsCode, $commandCode]), "\n\n");
28
29		return <<<EOF
30		<?php
31
32	4	namespace $namespace;
33
34		use EventSauce\\EventSourcing\\Event;
35		use EventSauce\\EventSourcing\\PointInTime;
36
37	4	$allCode
38
39		EOF;
40		}
41
42	5	private function dumpEvents(array $events, bool $withHelpers): string
43		{
44	5	$code = [];
45
46	5	if (empty($events)) {
47	2	return '';
48		}
49
50	4	foreach ($events as $event) {
51	4	$name = $event->name();
52	4	$fields = $this->dumpFields($event);
53	4	$constructor = $this->dumpConstructor($event);
54	4	$methods = $this->dumpMethods($event);
55	4	$deserializer = $this->dumpSerializationMethods($event);
56	4	$testHelpers = $withHelpers ? $this->dumpTestHelpers($event) : '';
57
58	4	$code[] = <<<EOF
59	4	final class $name implements Event
60		{
61	4	$fields$constructor$methods$deserializer
62
63	4	$testHelpers}
64
65
66		EOF;
67		}
68
69	4	return rtrim(join('', $code));
70		}
71
72	5	private function dumpFields(DefinitionWithFields $definition): string
73		{
74	5	$fields = $this->fieldsFromDefinition($definition);
75	4	$code = [];
76	4	$code[] = <<<EOF
77
78		EOF;
79
80
81	4	foreach ($fields as $field) {
82	4	$name = $field['name'];
83	4	$type = $field['type'];
84
85	4	$code[] = <<<EOF
86		/**
87	4	* @var $type
88		*/
89	4	private \$$name;
90
91
92		EOF;
93
94		}
95
96	4	return join('', $code);
97		}
98
99	4	private function dumpConstructor(DefinitionWithFields $definition): string
100		{
101	4	$arguments = [];
102	4	$assignments = [];
103	4	$fields = $this->fieldsFromDefinition($definition);
104
105	4	foreach ($fields as $field) {
106	4	$arguments[] = sprintf(' %s $%s', $field['type'], $field['name']);
107	4	$assignments[] = sprintf(' $this->%s = $%s;', $field['name'], $field['name']);
108		}
109
110	4	$arguments = join(",\n", $arguments);
111	4	$assignments = join("\n", $assignments);
112
113
114		return <<<EOF
115		public function __construct(
116	4	$arguments
117		) {
118	4	$assignments
119		}
120
121
122		EOF;
123
124		}
125
126	4	private function dumpMethods(DefinitionWithFields $command): string
127		{
128	4	$methods = [];
129
130	4	foreach ($this->fieldsFromDefinition($command) as $field) {
131	4	$methods[] = <<<EOF
132	4	public function {$field['name']}(): {$field['type']}
133		{
134	4	return \$this->{$field['name']};
135		}
136
137
138		EOF;
139		}
140
141	4	return empty($methods) ? '' : rtrim(join('', $methods)) . "\n\n";
142		}
143
144	4	private function dumpSerializationMethods(EventDefinition $event)
145		{
146	4	$name = $event->name();
147	4	$arguments = [];
148	4	$serializers = [];
149
150	4	foreach ($this->fieldsFromDefinition($event) as $field) {
151	4	$parameter = sprintf('$payload[\'%s\']', $field['name']);
152	4	$template = $event->deserializerForField($field['name'])
153	4	?: $event->deserializerForType($field['type']);
154	4	$arguments[] = trim(strtr($template, ['{type}' => $field['type'], '{param}' => $parameter]));
155
156	4	$property = sprintf('$this->%s', $field['name']);
157	4	$template = $event->serializerForField($field['name'])
158	4	?: $event->serializerForType($field['type']);
159	4	$template = sprintf("'%s' => %s", $field['name'], $template);
160	4	$serializers[] = trim(strtr($template, ['{type}' => $field['type'], '{param}' => $property]));
161		}
162
163	4	$arguments = preg_replace('/^.{2,}$/m', ' $0', join(",\n", $arguments));
164
165	4	if ( ! empty($arguments)) {
166	4	$arguments = "\n$arguments";
167		}
168
169	4	$serializers = preg_replace('/^.{2,}$/m', ' $0', join(",\n", $serializers));
170
171	4	if ( ! empty($serializers)) {
172	4	$serializers = "\n $serializers,\n ";
173		}
174
175		return <<<EOF
176		public static function fromPayload(array \$payload): Event
177		{
178	4	return new $name($arguments);
179		}
180
181		public function toPayload(): array
182		{
183	4	return [$serializers];
184		}
185		EOF;
186
187
188		}
189
190	2	private function dumpTestHelpers(EventDefinition $event): string
191		{
192	2	$constructor = [];
193	2	$constructorArguments = '';
194	2	$constructorValues = [];
195	2	$helpers = [];
196
197	2	foreach ($this->fieldsFromDefinition($event) as $field) {
198	2	if ($field['example'] === null) {
199	2	$constructor[] = ucfirst($field['name']);
200
201	2	if ($constructorArguments !== '') {
202		$constructorArguments .= ', ';
203		}
204
205	2	$constructorArguments .= sprintf('%s $%s', $field['type'], $field['name']);
206	2	$constructorValues[] = sprintf('$%s', $field['name']);
207		} else {
208	2	$constructorValues[] = $this->dumpConstructorValue($field, $event);
209	2	$method = sprintf('with%s', ucfirst($field['name']));
210	2	$helpers[] = <<<EOF
211		/**
212		* @codeCoverageIgnore
213		*/
214	2	public function $method({$field['type']} \${$field['name']}): {$event->name()}
215		{
216	2	\$this->{$field['name']} = \${$field['name']};
217
218		return \$this;
219		}
220
221
222		EOF;
223		}
224		}
225
226	2	$constructor = sprintf('with%s', join('And', $constructor));
227	2	$constructorValues = join(",\n ", $constructorValues);
228	2	$helpers[] = <<<EOF
229	2	public static function $constructor($constructorArguments): {$event->name()}
230		{
231	2	return new {$event->name()}(
232	2	$constructorValues
233		);
234		}
235
236
237		EOF;
238
239
240	2	return join('', $helpers);
241		}
242
243	2	private function dumpConstructorValue(array $field, EventDefinition $event): string
244		{
245	2	$parameter = rtrim($field['example']);
246
247	2	if (gettype($parameter) === $field['type']) {
248	1	$parameter = var_export($parameter, true);
249		}
250
251	2	$template = $event->deserializerForField($field['name'])
252	2	?: $event->deserializerForType($field['type']);
253
254	2	return rtrim(strtr($template, ['{type}' => $field['type'], '{param}' => $parameter]));
255		}
256
257		/**
258		* @param CommandDefinition[] $commands
259		* @return string
260		*/
261	5	private function dumpCommands(array $commands): string
262		{
263	5	$code = [];
264
265	5	foreach ($commands as $command) {
266	4	$code[] = <<<EOF
267	5	final class {$command->name()}
268		{
269	5	{$this->dumpFields($command)}{$this->dumpConstructor($command)}{$this->dumpMethods($command)}}
270
271
272		EOF;
273		}
274
275	4	return rtrim(join('', $code));
276		}
277
278		/**
279		* @param DefinitionWithFields $definition
280		* @return array
281		*/
282	5	private function fieldsFromDefinition(DefinitionWithFields $definition): array
283		{
284	5	$fields = $this->fieldsFrom($definition->fieldsFrom());
285
286	4	foreach ($definition->fields() as $field) {
287	4	array_push($fields, $field);
288		}
289
290	4	return $fields;
291		}
292
293	5	private function fieldsFrom(string $fieldsFrom): array
294		{
295	5	if (empty($fieldsFrom)) {
296	4	return [];
297		}
298
299	2	foreach ($this->definitionGroup->events() as $event) {
300	1	if ($event->name() === $fieldsFrom) {
301	1	return $event->fields();
302		}
303		}
304
305	2	foreach ($this->definitionGroup->commands() as $command) {
306	2	if ($command->name() === $fieldsFrom) {
307	2	return $command->fields();
308		}
309		}
310
311	1	throw new LogicException("Could not inherit fields from {$fieldsFrom}.");
312		}
313		}

EventSaucePHP / EventSauce

Pull Request — master (#21)

CodeDumper::dumpCommands() A

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