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<?php |
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namespace MallardDuck\DynamicEcho\ScriptGenerator; |
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use Illuminate\Support\Collection; |
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use MallardDuck\DynamicEcho\Collections\ContextNodeCollection; |
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use MallardDuck\DynamicEcho\ScriptGenerator\Nodes\ContextNode; |
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use MallardDuck\DynamicEcho\ScriptGenerator\Nodes\ScriptNode; |
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/** |
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* Class ScriptGenerator |
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* |
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* Generates the Echo javascript for both the context and event scripts. |
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* |
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* @package MallardDuck\DynamicEcho |
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*/ |
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class ScriptGenerator |
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{ |
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private ContextNodeCollection $contextNodeStack; |
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private Collection $scriptNodeStack; |
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public function __construct() |
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{ |
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$this->contextNodeStack = new ContextNodeCollection(); |
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$this->scriptNodeStack = new Collection([ |
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ScriptNodeBuilder::getRootEchoNode(), |
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]); |
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} |
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public function pushContextNode(ContextNode $node): self |
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{ |
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$this->contextNodeStack->push($node); |
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return $this; |
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} |
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public function getRootContext(): string |
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{ |
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return $this->contextNodeStack->toJson(); |
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} |
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public function pushScriptNode(ScriptNode $node): self |
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{ |
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$this->scriptNodeStack->push($node); |
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return $this; |
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} |
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/** |
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* Outputs the entire generated Echo script code. |
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* |
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* @return string |
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*/ |
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public function getRootScript(): string |
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{ |
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return $this->renderNodeStack($this->scriptNodeStack); |
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} |
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private function renderNodeStack(Collection $nodeStack): string |
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{ |
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/** |
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* @var string |
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*/ |
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$results = ''; |
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$count = $nodeStack->count(); |
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$nodeStack->map(static function ($item) use (&$results, &$count) { |
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$results .= (string) $item; |
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--$count; |
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if (0 === $count) { |
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$results .= ";\n"; |
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} else { |
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$results .= "\n"; |
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} |
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}); |
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return $results; |
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} |
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} |
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mallardduck /
dynamic-echo-events
