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
|
|
|
|
36
|
4 |
|
$allCode |
37
|
|
|
|
38
|
|
|
EOF; |
39
|
|
|
} |
40
|
|
|
|
41
|
5 |
|
private function dumpEvents(array $events, bool $withHelpers): string |
42
|
|
|
{ |
43
|
5 |
|
$code = []; |
44
|
|
|
|
45
|
5 |
|
if (empty($events)) { |
46
|
2 |
|
return ''; |
47
|
|
|
} |
48
|
|
|
|
49
|
4 |
|
foreach ($events as $event) { |
50
|
4 |
|
$name = $event->name(); |
51
|
4 |
|
$fields = $this->dumpFields($event); |
52
|
4 |
|
$constructor = $this->dumpConstructor($event); |
53
|
4 |
|
$methods = $this->dumpMethods($event); |
54
|
4 |
|
$deserializer = $this->dumpSerializationMethods($event); |
55
|
4 |
|
$testHelpers = $withHelpers ? $this->dumpTestHelpers($event) : ''; |
56
|
|
|
|
57
|
4 |
|
$code[] = <<<EOF |
58
|
4 |
|
final class $name implements Event |
59
|
|
|
{ |
60
|
4 |
|
$fields$constructor$methods$deserializer |
61
|
|
|
|
62
|
4 |
|
$testHelpers} |
63
|
|
|
|
64
|
|
|
|
65
|
|
|
EOF; |
66
|
|
|
} |
67
|
|
|
|
68
|
4 |
|
return rtrim(join('', $code)); |
69
|
|
|
} |
70
|
|
|
|
71
|
5 |
|
private function dumpFields(DefinitionWithFields $definition): string |
72
|
|
|
{ |
73
|
5 |
|
$fields = $this->fieldsFromDefinition($definition); |
74
|
4 |
|
$code = []; |
75
|
4 |
|
$code[] = <<<EOF |
76
|
|
|
|
77
|
|
|
EOF; |
78
|
|
|
|
79
|
|
|
|
80
|
4 |
|
foreach ($fields as $field) { |
81
|
4 |
|
$name = $field['name']; |
82
|
4 |
|
$type = $field['type']; |
83
|
|
|
|
84
|
4 |
|
$code[] = <<<EOF |
85
|
|
|
/** |
86
|
4 |
|
* @var $type |
87
|
|
|
*/ |
88
|
4 |
|
private \$$name; |
89
|
|
|
|
90
|
|
|
|
91
|
|
|
EOF; |
92
|
|
|
|
93
|
|
|
} |
94
|
|
|
|
95
|
4 |
|
return join('', $code); |
96
|
|
|
} |
97
|
|
|
|
98
|
4 |
|
private function dumpConstructor(DefinitionWithFields $definition): string |
99
|
|
|
{ |
100
|
4 |
|
$arguments = []; |
101
|
4 |
|
$assignments = []; |
102
|
4 |
|
$fields = $this->fieldsFromDefinition($definition); |
103
|
|
|
|
104
|
4 |
|
foreach ($fields as $field) { |
105
|
4 |
|
$arguments[] = sprintf(' %s $%s', $field['type'], $field['name']); |
106
|
4 |
|
$assignments[] = sprintf(' $this->%s = $%s;', $field['name'], $field['name']); |
107
|
|
|
} |
108
|
|
|
|
109
|
4 |
|
$arguments = join(",\n", $arguments); |
110
|
4 |
|
$assignments = join("\n", $assignments); |
111
|
|
|
|
112
|
|
|
|
113
|
|
|
return <<<EOF |
114
|
|
|
public function __construct( |
115
|
4 |
|
$arguments |
116
|
|
|
) { |
117
|
4 |
|
$assignments |
118
|
|
|
} |
119
|
|
|
|
120
|
|
|
|
121
|
|
|
EOF; |
122
|
|
|
|
123
|
|
|
} |
124
|
|
|
|
125
|
4 |
|
private function dumpMethods(DefinitionWithFields $command): string |
126
|
|
|
{ |
127
|
4 |
|
$methods = []; |
128
|
|
|
|
129
|
4 |
|
foreach ($this->fieldsFromDefinition($command) as $field) { |
130
|
4 |
|
$methods[] = <<<EOF |
131
|
4 |
|
public function {$field['name']}(): {$field['type']} |
132
|
|
|
{ |
133
|
4 |
|
return \$this->{$field['name']}; |
134
|
|
|
} |
135
|
|
|
|
136
|
|
|
|
137
|
|
|
EOF; |
138
|
|
|
} |
139
|
|
|
|
140
|
4 |
|
return empty($methods) ? '' : rtrim(join('', $methods)) . "\n"; |
141
|
|
|
} |
142
|
|
|
|
143
|
4 |
|
private function dumpSerializationMethods(EventDefinition $event) |
144
|
|
|
{ |
145
|
4 |
|
$name = $event->name(); |
146
|
4 |
|
$arguments = []; |
147
|
4 |
|
$serializers = []; |
148
|
|
|
|
149
|
4 |
|
foreach ($this->fieldsFromDefinition($event) as $field) { |
150
|
4 |
|
$parameter = sprintf('$payload[\'%s\']', $field['name']); |
151
|
4 |
|
$template = $event->deserializerForField($field['name']) |
152
|
4 |
|
?: $event->deserializerForType($field['type']); |
153
|
4 |
|
$arguments[] = trim(strtr($template, ['{type}' => $field['type'], '{param}' => $parameter])); |
154
|
|
|
|
155
|
4 |
|
$property = sprintf('$this->%s', $field['name']); |
156
|
4 |
|
$template = $event->serializerForField($field['name']) |
157
|
4 |
|
?: $event->serializerForType($field['type']); |
158
|
4 |
|
$template = sprintf("'%s' => %s", $field['name'], $template); |
159
|
4 |
|
$serializers[] = trim(strtr($template, ['{type}' => $field['type'], '{param}' => $property])); |
160
|
|
|
} |
161
|
|
|
|
162
|
4 |
|
$arguments = preg_replace('/^.{2,}$/m', ' $0', join(",\n", $arguments)); |
163
|
|
|
|
164
|
4 |
|
if ( ! empty($arguments)) { |
165
|
4 |
|
$arguments = "\n$arguments"; |
166
|
|
|
} |
167
|
|
|
|
168
|
4 |
|
$serializers = preg_replace('/^.{2,}$/m', ' $0', join(",\n", $serializers)); |
169
|
|
|
|
170
|
4 |
|
if ( ! empty($serializers)) { |
171
|
4 |
|
$serializers = "\n$serializers,\n "; |
172
|
|
|
} |
173
|
|
|
|
174
|
|
|
return <<<EOF |
175
|
|
|
public static function fromPayload(array \$payload): Event |
176
|
|
|
{ |
177
|
4 |
|
return new $name($arguments); |
178
|
|
|
} |
179
|
|
|
|
180
|
|
|
public function toPayload(): array |
181
|
|
|
{ |
182
|
4 |
|
return [$serializers]; |
183
|
|
|
} |
184
|
|
|
EOF; |
185
|
|
|
|
186
|
|
|
|
187
|
|
|
} |
188
|
|
|
|
189
|
2 |
|
private function dumpTestHelpers(EventDefinition $event): string |
190
|
|
|
{ |
191
|
2 |
|
$constructor = []; |
192
|
2 |
|
$constructorArguments = ''; |
193
|
2 |
|
$constructorValues = []; |
194
|
2 |
|
$helpers = []; |
195
|
|
|
|
196
|
2 |
|
foreach ($this->fieldsFromDefinition($event) as $field) { |
197
|
2 |
|
if ($field['example'] === null) { |
198
|
2 |
|
$constructor[] = ucfirst($field['name']); |
199
|
|
|
|
200
|
2 |
|
if ($constructorArguments !== '') { |
201
|
1 |
|
$constructorArguments .= ', '; |
202
|
|
|
} |
203
|
|
|
|
204
|
2 |
|
$constructorArguments .= sprintf('%s $%s', $field['type'], $field['name']); |
205
|
2 |
|
$constructorValues[] = sprintf('$%s', $field['name']); |
206
|
|
|
} else { |
207
|
2 |
|
$constructorValues[] = $this->dumpConstructorValue($field, $event); |
208
|
2 |
|
$method = sprintf('with%s', ucfirst($field['name'])); |
209
|
2 |
|
$helpers[] = <<<EOF |
210
|
|
|
/** |
211
|
|
|
* @codeCoverageIgnore |
212
|
|
|
*/ |
213
|
2 |
|
public function $method({$field['type']} \${$field['name']}): {$event->name()} |
214
|
|
|
{ |
215
|
2 |
|
\$this->{$field['name']} = \${$field['name']}; |
216
|
|
|
|
217
|
|
|
return \$this; |
218
|
|
|
} |
219
|
|
|
|
220
|
|
|
|
221
|
|
|
EOF; |
222
|
|
|
} |
223
|
|
|
} |
224
|
|
|
|
225
|
2 |
|
$constructor = sprintf('with%s', join('And', $constructor)); |
226
|
2 |
|
$constructorValues = join(",\n ", $constructorValues); |
227
|
2 |
|
$helpers[] = <<<EOF |
228
|
|
|
/** |
229
|
|
|
* @codeCoverageIgnore |
230
|
|
|
*/ |
231
|
2 |
|
public static function $constructor($constructorArguments): {$event->name()} |
232
|
|
|
{ |
233
|
2 |
|
return new {$event->name()}( |
234
|
2 |
|
$constructorValues |
235
|
|
|
); |
236
|
|
|
} |
237
|
|
|
|
238
|
|
|
|
239
|
|
|
EOF; |
240
|
|
|
|
241
|
|
|
|
242
|
2 |
|
return rtrim(join('', $helpers))."\n"; |
243
|
|
|
} |
244
|
|
|
|
245
|
2 |
|
private function dumpConstructorValue(array $field, EventDefinition $event): string |
246
|
|
|
{ |
247
|
2 |
|
$parameter = rtrim($field['example']); |
248
|
|
|
|
249
|
2 |
|
if (gettype($parameter) === $field['type']) { |
250
|
1 |
|
$parameter = var_export($parameter, true); |
251
|
|
|
} |
252
|
|
|
|
253
|
2 |
|
$template = $event->deserializerForField($field['name']) |
254
|
2 |
|
?: $event->deserializerForType($field['type']); |
255
|
|
|
|
256
|
2 |
|
return rtrim(strtr($template, ['{type}' => $field['type'], '{param}' => $parameter])); |
257
|
|
|
} |
258
|
|
|
|
259
|
|
|
/** |
260
|
|
|
* @param CommandDefinition[] $commands |
261
|
|
|
* @return string |
262
|
|
|
*/ |
263
|
5 |
|
private function dumpCommands(array $commands): string |
264
|
|
|
{ |
265
|
5 |
|
$code = []; |
266
|
|
|
|
267
|
5 |
|
foreach ($commands as $command) { |
268
|
4 |
|
$code[] = <<<EOF |
269
|
5 |
|
final class {$command->name()} |
270
|
|
|
{ |
271
|
5 |
|
{$this->dumpFields($command)}{$this->dumpConstructor($command)}{$this->dumpMethods($command)}} |
272
|
|
|
|
273
|
|
|
|
274
|
|
|
EOF; |
275
|
|
|
} |
276
|
|
|
|
277
|
4 |
|
return rtrim(join('', $code)); |
278
|
|
|
} |
279
|
|
|
|
280
|
|
|
/** |
281
|
|
|
* @param DefinitionWithFields $definition |
282
|
|
|
* @return array |
283
|
|
|
*/ |
284
|
5 |
|
private function fieldsFromDefinition(DefinitionWithFields $definition): array |
285
|
|
|
{ |
286
|
5 |
|
$fields = $this->fieldsFrom($definition->fieldsFrom()); |
287
|
|
|
|
288
|
4 |
|
foreach ($definition->fields() as $field) { |
289
|
4 |
|
array_push($fields, $field); |
290
|
|
|
} |
291
|
|
|
|
292
|
4 |
|
return $fields; |
293
|
|
|
} |
294
|
|
|
|
295
|
5 |
|
private function fieldsFrom(string $fieldsFrom): array |
296
|
|
|
{ |
297
|
5 |
|
if (empty($fieldsFrom)) { |
298
|
4 |
|
return []; |
299
|
|
|
} |
300
|
|
|
|
301
|
2 |
|
foreach ($this->definitionGroup->events() as $event) { |
302
|
1 |
|
if ($event->name() === $fieldsFrom) { |
303
|
1 |
|
return $event->fields(); |
304
|
|
|
} |
305
|
|
|
} |
306
|
|
|
|
307
|
2 |
|
foreach ($this->definitionGroup->commands() as $command) { |
308
|
2 |
|
if ($command->name() === $fieldsFrom) { |
309
|
2 |
|
return $command->fields(); |
310
|
|
|
} |
311
|
|
|
} |
312
|
|
|
|
313
|
1 |
|
throw new LogicException("Could not inherit fields from {$fieldsFrom}."); |
314
|
|
|
} |
315
|
|
|
} |