- Added an event manager. Also, fixed some more bugs within Block and Section tokens

src/Builder/ClassTemplate.php

@@ -8,10 +8,13 @@ namespace %NAMESPACE%;
 if (! class_exists("%NAMESPACE%\%CLASSNAME%", false) ) {
 
     class %CLASSNAME% %EXTENDS% {
+
         public array $blockList = [];
 
         public array $sectionList = [];
 
+        public array $sectionStack = [];
+
         public array $variableList = [];
 
         public ?object $thisProxy = null;
@@ -24,6 +27,8 @@ if (! class_exists("%NAMESPACE%\%CLASSNAME%", false) ) {
 
         public bool $renderingInsideSection = false;
 
+        public int $depth = 0;
+
         public function __construct(\Picea\Picea $picea, array $variablesList = [], ?object $thisProxy = null) {
             $this->picea = $picea;
             $this->variableList = $variablesList;
@@ -37,15 +42,26 @@ if (! class_exists("%NAMESPACE%\%CLASSNAME%", false) ) {
 
         public function output(array $variablesList = []) : void
         {
+            $__event = new \Picea\Builder\ClassTemplateEvent();
+
             $this->rendering = true;
 
-            ( function($___class__template, $___global_variables, $___variables, $picea) {
+            $this->depth++;
+
+            $__event->eventExecute(\Picea\Event\Builder\ClassTemplateOutputing::class, $variablesList);
+
+            ( function($___class__template, $___global_variables, $___variables, $__event, $picea) {
                 extract($___global_variables);
                 extract($___variables, \EXTR_OVERWRITE);
                 ?>%CONTENT%<?php
-            } )->call($this->thisProxy ?? new class(){}, $this, $this->variableList, $variablesList, $this->picea);
+            } )->call($this->thisProxy ?? new class() {}, $this, $this->variableList, $variablesList, $__event, $this->picea);
+
+            $__event->eventExecute(\Picea\Event\Builder\ClassTemplateOutputDone::class, $variablesList);
+
             %PARENT_OUTPUT%
 
+            $this->depth--;
+
             $this->rendering = false;
         }
 

src/Builder/ClassTemplateEvent.php

@@ -0,0 +1,8 @@
+<?php declare(strict_types=1);
+
+namespace Picea\Builder;
+
+class ClassTemplateEvent
+{
+    use \Picea\EventTrait;
+}

src/Compiler.php

@@ -122,9 +122,14 @@ class Compiler
 
     }
 
+    public function __toString() : string
+    {
+        return "WHATAFAK";
+    }
+
     public function getExtensionFromToken(string $name) : Extension\Extension
     {
-        if ( false === $this->extensionList[$name] ?? false ) {
+        if ( ! isset($this->extensionList[$name]) ) {
             throw new \InvalidArgumentException(<<<MSG
                 Requested extension from token `$name` could not be found from loaded Picea compiler's extension.
             MSG);

src/ControlStructure/BlockToken.php

@@ -50,6 +50,8 @@ class BlockToken implements ControlStructure {
                 
                 list($name, $definition) = array_pad(explode(',', $arguments, 2), 2, "");
 
+                $loops = count($context->iterationStack ?? []) ? ",". implode(', ', array_filter(array_column($context->iterationStack, 'uid'), fn($e) => strpos($e, '[') === false)) : null;
+
                 if ($def->hasDefinitions() ) {
                     $slotName = eval("return $name;");
                     $def->currentSlot = $slotName;
@@ -62,7 +64,7 @@ class BlockToken implements ControlStructure {
                     }
 
                     return <<<PHP
-                        <?php \$this->printSlot($name, function($definition array \$___using = []) use (\$picea) { extract(\$___using, \EXTR_SKIP); ?>
+                        <?php \$this->printSlot($name, function($definition array \$___using = []) use (\$picea $loops) { extract(\$___using, \EXTR_SKIP); ?>
                     PHP;
                 }
                 else {
@@ -71,7 +73,7 @@ class BlockToken implements ControlStructure {
                     }
                     
                     return <<<PHP
-                        <?php (\$___block ?? \$this)->slotIsSet($name) || \$___block->setSlot($name, function($definition array \$___using = []) use (\$picea) { extract(\$___using, \EXTR_SKIP); ?>
+                        <?php (\$___block ?? \$this)->slotIsSet($name) || \$___block->setSlot($name, function($definition array \$___using = []) use (\$picea $loops) { extract(\$___using, \EXTR_SKIP); ?>
                     PHP;
                 }
                     

src/ControlStructure/SectionToken.php

@@ -46,14 +46,26 @@ class SectionToken implements ControlStructure {
         $order = $options['order'] ?? "count(\$___class__template->sectionList[$name]['$action'])";
 
         return "<?php \$___class__template->sectionList[$name] ??= [ 'prepend' => [], 'append' => [], 'default' => [] ];".
-                      "\$___class__template->sectionList[$name]['$action'][] = [ 'order' => $order, 'callback' => function() use (\$picea, \$___class__template, \$___global_variables, \$___variables) {".
-                          "extract(\$___global_variables); extract(\$___variables, \EXTR_OVERWRITE); \$___class__template->sectionStack[] = '$name'; ?>";
+                      "\$___class__template->sectionList[$name]['$action'][] = [ 
+                      'order' => $order, 
+                      'callback' => function() use (\$picea, \$___class__template, \$___global_variables, \$___variables, \$__event) {".
+                          "extract(\$___global_variables); extract(\$___variables, \EXTR_OVERWRITE); 
+                          \$___class__template->sectionStack[] = $name; 
+                          \$__event->eventExecute(\Picea\Event\Builder\ClassTemplateRenderSection::class, $name);?>";
     }
 
     protected function printEndSection($context) : string
     {            
         $section = array_pop($context->sections);
-        $build = $context->extendFrom ? "!empty(\$___class__template->sectionStack) && \$___class__template->renderSection({$section['name']});" : "\$___class__template->renderSection({$section['name']});";
-        return "<?php array_pop(\$___class__template->sectionStack); }]; $build?>";
+        $build = $context->extendFrom ? "!empty(\$___class__template->sectionStack) && \$___class__template->renderSection({$section['name']}, false);" : "\$___class__template->renderSection({$section['name']}, false);";
+
+        return <<<PHP
+            <?php 
+                \$__event->eventExecute(\Picea\Event\Builder\ClassTemplateRenderSectionDone::class, {$section['name']});
+                array_pop(\$___class__template->sectionStack); }]; 
+                $build
+            ?>
+        PHP;
+
     }
 }

src/Event/Builder/ClassTemplateOutputDone.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Picea\Event\Builder;
+
+interface ClassTemplateOutputDone {
+    public function execute(string $name, array $variablesList) : mixed;
+}

src/Event/Builder/ClassTemplateOutputing.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Picea\Event\Builder;
+
+interface ClassTemplateOutputing {
+    public function execute(string $name, array $variablesList) : mixed;
+}

src/Event/Builder/ClassTemplateRenderSection.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Picea\Event\Builder;
+
+interface ClassTemplateRenderSection {
+    public function execute(string $name) : mixed;
+}

src/Event/Builder/ClassTemplateRenderSectionDone.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Picea\Event\Builder;
+
+interface ClassTemplateRenderSectionDone {
+    public function execute(string $section) : mixed;
+}

src/EventTrait.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Picea;
+
+trait EventTrait
+{
+    protected $_eventTraitMethod = "execute";
+
+    public array $_eventList = [];
+
+    protected array $_returnList = [];
+
+    public function eventRegister(object $event) : void 
+    {
+        $this->_eventList[] = $event;
+    }
+    
+    public function eventFromType(string $type) : array 
+    {
+        return array_filter($this->_eventList, fn($ev) => $ev instanceof $type);
+    }
+    
+    public function eventExecute(string $type, ...$arguments) : void 
+    {
+        foreach($this->eventFromType($type) as $event) {
+            $this->_returnList[$event::class][] = call_user_func_array([ $event, $this->_eventTraitMethod ], $arguments);
+        }
+    }
+}

src/Extension/LanguageExtension.php

@@ -3,6 +3,7 @@
 namespace Picea\Extension;
 
 use Picea\Compiler\Context;
+use Picea\Event\Builder\ClassTemplateRenderSectionDone;
 
 class LanguageExtension implements Extension, FunctionExtension {
 
@@ -28,7 +29,22 @@ class LanguageExtension implements Extension, FunctionExtension {
     {
         switch($token) {
             case "language.set":
-                return "<?php \$picea->compiler->getExtensionFromToken('$token')->currentLanguage = $arguments; ?>";
+                $cls = $this::class;
+
+                return <<<PHP
+                    <?php 
+                        (function(\\$cls \$ext) use (\$___class__template, \$__event) {
+                            #\$extends = \$___class__template->getParam('extends');
+                        
+                            if ( \$___class__template->depth === 1 || \$___class__template->sectionStack ) {
+                                \$ext->currentLanguage = $arguments; 
+                                
+                                # @TODO Make sure this event is only registered when we output() a template, if we are in a section, we must attach it a view/section/block output event instead ! 
+                                \$__event->eventRegister(\\$cls::outputDoneEvent(\$ext));
+                            }
+                       })(\$picea->compiler->getExtensionFromToken('$token'));
+                    ?>
+                PHP;
 
             case "lang":
                 return "<?php echo htmlspecialchars(\$picea->compiler->getExtensionFromToken('$token')->absoluteLang($arguments), \ENT_QUOTES, ini_get('default_charset'), true) ?>";
@@ -59,4 +75,21 @@ class LanguageExtension implements Extension, FunctionExtension {
     {
         return $this->languageHandler->languageFromKey($key, $variables);
     }
+
+    public static function outputDoneEvent(LanguageExtension $languageExtension) : ClassTemplateRenderSectionDone
+    {
+        return new class($languageExtension) implements ClassTemplateRenderSectionDone {
+
+            protected string $current;
+
+            public function __construct(protected LanguageExtension $languageExtension) {
+                 $this->current = $this->languageExtension->currentLanguage;
+            }
+
+            public function execute(string $name) : mixed
+            {
+                return $this->current ? $this->languageExtension->currentLanguage = $this->current : null;
+            }
+        };
+    }
 }

src/Extension/TitleExtension.php

@@ -16,7 +16,13 @@ class TitleExtension implements Extension, FunctionExtension {
     }
 
     public function parse(\Picea\Compiler\Context &$context, ?string $arguments, string $token) {
-        return "<?php echo title($arguments) ?>";
+        return <<<PHP
+            <?php 
+                if ( null !== \$title = title($arguments) ) {
+                    echo \$title;
+                }    
+            ?>
+        PHP;
     }
     
     public function handleTitle(? string $set = null, ...$arguments) : ? string

src/Extension/UrlExtension.php

@@ -48,7 +48,9 @@ PATTERN;
                 return "<?php echo \$picea->compiler->getExtensionFromToken('$token')->setUrlParameters($arguments) ?>";
 
             case "slug":
-                return \Transliterator::createFromRules(':: Any-Latin;:: NFD;:: [:Nonspacing Mark:] Remove;:: NFC;:: [:Punctuation:] Remove;:: Lower();[:Separator:] > \'-\'')->transliterate( $arguments );
+                return "<?php echo \$picea->compiler->getExtensionFromToken('$token')->slug($arguments) ?>";
+
+                #return \Transliterator::createFromRules(':: Any-Latin;:: NFD;:: [:Nonspacing Mark:] Remove;:: NFC;:: [:Punctuation:] Remove;:: Lower();[:Separator:] > \'-\'')->transliterate( $arguments );
         }
 
         return null;
@@ -121,9 +123,14 @@ PATTERN;
         return $this->scheme() . $this->domain() . $this->base();
     }
 
+    # src: https://stackoverflow.com/a/14550919
     public static function slug(string $text, string $separator = '-') : string
     {
-        return trim(str_replace('-', $separator, \Transliterator::createFromRules(':: Any-Latin;:: NFD;:: [:Nonspacing Mark:] Remove;:: NFC;:: [:Punctuation:] Remove;:: Lower();[:Separator:] > \'-\'')->transliterate(str_replace('-', ' ', $text))), '-');
+        $clean = iconv('UTF-8', 'ASCII//TRANSLIT', $text);
+        $clean = preg_replace("/[^a-zA-Z0-9\/_| -]/", '', $clean);
+
+        return preg_replace("/[\/_| -]+/", $separator, strtolower(trim($clean, '-')));
+
     }
 
     public function registerRoute(string $name, string $route, string $class, string $method, array $routeMethods) : void

src/Picea.php

@@ -54,7 +54,7 @@ class Picea implements LanguageRegistration
         $this->renderContext($this->context);
     }
 
-    public function gatherTemplateObject(string $viewPath, array $variables = [], ? object $proxy = null) : ? object
+    public function gatherCompiledObject(string $viewPath, array $variables = [], ? object $proxy = null) : ? object
     {
         if ( null === $object = $this->fetchFromCache($viewPath, $this->globalVariables + $variables, $proxy) ) {
             throw new \RuntimeException("An error occured while trying to save a compiled template.");
@@ -65,7 +65,7 @@ class Picea implements LanguageRegistration
 
     public function renderHtml(string $viewPath, array $variables = [], ?object $proxy = null) : ? string
     {
-        $object = $this->gatherTemplateObject($viewPath, $variables, $proxy);
+        $object = $this->gatherCompiledObject($viewPath, $variables, $proxy);
 
         try {
             return call_user_func($object);