From f2164e9af19ce921f319d7fa4c7758520648897d Mon Sep 17 00:00:00 2001
From: Greg Bowler <greg.bowler@g105b.com>
Date: Wed, 8 May 2024 10:30:46 +0100
Subject: [PATCH] feature: improve default routing, closes PhpGt/Routing#61

---
 router.default.php | 147 ++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 124 insertions(+), 23 deletions(-)

diff --git a/router.default.php b/router.default.php
index 0bbcc860..c0d585e7 100644
--- a/router.default.php
+++ b/router.default.php
@@ -12,38 +12,77 @@
 use Gt\Routing\Path\DynamicPath;
 use Gt\WebEngine\View\BaseView;
 use Gt\WebEngine\View\HTMLView;
+use Gt\WebEngine\View\NullView;
 
 class DefaultRouter extends BaseRouter {
 	#[Any(name: "page-route", accept: "text/html,application/xhtml+xml")]
 	public function page(Request $request):void {
 		$pathMatcher = new PathMatcher("page");
 		$this->setViewClass(HTMLView::class);
-		$pathMatcher->addFilter(function(string $filePath, string $uriPath, string $baseDir):bool {
-// There are three types of matching files: Basic, Magic and Dynamic.
-// Basic is where a URI matches directly to a file on disk.
-// Magic is where a URI matches a PHP.Gt-specific file, like _common or _header.
-// Dynamic is where a URI matches a file/directory marked as dynamic with "@".
-			$basicFileMatch = new BasicFileMatch($filePath, $baseDir);
-			if($basicFileMatch->matches($uriPath)) {
-				return true;
+		$this->pathMatcherFilter($pathMatcher);
+
+// This sort function allow multiple headers and footers to be in nested
+// directories, so the highest level header is at the start of the list,
+// with the reverse logic applied to footers.
+// TODO: Extract into own function. Should this be maintained within PHP.Gt/Routing ?
+		$headerFooterSort = function(string $a, string $b):int {
+			$fileNameA = pathinfo($a, PATHINFO_FILENAME);
+			$fileNameB = pathinfo($b, PATHINFO_FILENAME);
+
+			if($fileNameA === "_header") {
+				if($fileNameB === "_header") {
+					$aDepth = substr_count($a, "/");
+					$bDepth = substr_count($b, "/");
+					if($aDepth > $bDepth) {
+						return 1;
+					}
+					elseif($aDepth < $bDepth) {
+						return -1;
+					}
+					else {
+						return 0;
+					}
+				}
+
+
+				return -1;
 			}
 
-			$magicFileMatch = new MagicFileMatch($filePath, $baseDir);
-			if($magicFileMatch->matches($uriPath)) {
-				return true;
+			if($fileNameA === "_footer") {
+				if($fileNameB === "_footer") {
+					$aDepth = substr_count($a, "/");
+					$bDepth = substr_count($b, "/");
+					if($aDepth < $bDepth) {
+						return 1;
+					}
+					elseif($aDepth > $bDepth) {
+						return -1;
+					}
+					else {
+						return 0;
+					}
+				}
+
+				return 1;
 			}
 
-			return false;
-		});
-		// TODO: add logic and view assembly in the api directory
-		// (configured from $this->routerConfig)
+			if($fileNameB === "_header") {
+				return 1;
+			}
+
+			if($fileNameB === "_footer") {
+				return -1;
+			}
+
+			return 0;
+		};
 
 		$sortNestLevelCallback = fn(string $a, string $b) =>
-			substr_count($a, "/") > substr_count($b, "/");
-		$headerSort = fn(string $a, string $b) =>
-		strtok(basename($a), ".") === "_header" ? -1 : 1;
-		$footerSort = fn(string $a, string $b) =>
-		strtok(basename($a), ".") === "_footer" ? 1 : -1;
+		substr_count($a, "/") > substr_count($b, "/")
+			? 1
+			: (substr_count($a, "/") < substr_count($b, "/")
+			? -1
+			: 0);
 
 		$matchingLogics = $pathMatcher->findForUriPath(
 			$request->getUri()->getPath(),
@@ -60,12 +99,74 @@ public function page(Request $request):void {
 			"page",
 			"html"
 		);
-		usort($matchingViews, $sortNestLevelCallback);
-		usort($matchingViews, $headerSort);
-		usort($matchingViews, $footerSort);
+		usort($matchingViews, $headerFooterSort);
+		foreach($matchingViews as $path) {
+			$this->addToViewAssembly($path);
+		}
+	}
+
+	#[Any(name: "api-route", accept: "application/xml,application/json")]
+	public function api(
+		Request $request
+	):void {
+		$pathMatcher = new PathMatcher("api");
+		$this->pathMatcherFilter($pathMatcher);
+		$this->setViewClass(NullView::class);
+		$sortNestLevelCallback = fn(string $a, string $b) =>
+		substr_count($a, "/") > substr_count($b, "/")
+			? 1
+			: (substr_count($a, "/") < substr_count($b, "/")
+			? -1
+			: 0);
 
+		$matchingLogics = $pathMatcher->findForUriPath(
+			$request->getUri()->getPath(),
+			"api",
+			"php"
+		);
+		usort($matchingLogics, $sortNestLevelCallback);
+		foreach($matchingLogics as $path) {
+			$this->addToLogicAssembly($path);
+		}
+
+		$matchingViews = $pathMatcher->findForUriPath(
+			$request->getUri()->getPath(),
+			"api",
+			"xml"
+		);
 		foreach($matchingViews as $path) {
 			$this->addToViewAssembly($path);
 		}
 	}
+
+	public function pathMatcherFilter(PathMatcher $pathMatcher):void {
+		$pathMatcher->addFilter(function(string $filePath, string $uriPath, string $baseDir):bool {
+			foreach(glob($baseDir . $uriPath . ".*") as $globMatch) {
+				$URI_CONTAINER = pathinfo($uriPath, PATHINFO_DIRNAME);
+				$TRIM_THIS = $baseDir . $URI_CONTAINER;
+				if(str_starts_with($globMatch, $TRIM_THIS)) {
+					$trimmed = substr($filePath, strlen($TRIM_THIS));
+					if(str_contains($trimmed, "@")) {
+						return false;
+					}
+				}
+			}
+
+// There are three types of matching files: Basic, Magic and Dynamic.
+// Basic is where a URI matches directly to a file on disk.
+// Magic is where a URI matches a PHP.Gt-specific file, like _common or _header.
+// Dynamic is where a URI matches a file/directory marked as dynamic with "@".
+			$basicFileMatch = new BasicFileMatch($filePath, $baseDir);
+			if($basicFileMatch->matches($uriPath)) {
+				return true;
+			}
+
+			$magicFileMatch = new MagicFileMatch($filePath, $baseDir);
+			if($magicFileMatch->matches($uriPath)) {
+				return true;
+			}
+
+			return false;
+		});
+	}
 }