build routes with with parameters

2 files changed, 38 insertions, 6 deletions

diff --git a/src/PathSegment.php b/src/PathSegment.php
index c2231da..d55102f 100644
--- a/src/PathSegment.php
+++ b/src/PathSegment.php
@@ -162,10 +162,16 @@ class PathSegment
         return $seg;
     }
 
-    public function getPath(): string
+    /** @param array<string, string> $parameters */
+    public function getPath(array $parameters = []): string
     {
         $parts = array_map(
-            fn ($seg) => $seg->getContent(),
+            fn ($seg) => match ($seg->getType()) {
+                PathSegmentType::Parameter => (
+                    $parameters[$v = ($seg->getValue() ?? '')] ?? throw MissingParameterException::make($v)
+                ),
+                default => $seg->getContent(),
+            },
             $this->getAncestorsAndSelf()
         );
 
diff --git a/tests/Unit/PathSegmentTest.php b/tests/Unit/PathSegmentTest.php
index 0606b75..62c6ec9 100644
--- a/tests/Unit/PathSegmentTest.php
+++ b/tests/Unit/PathSegmentTest.php
@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 use Lightscale\Router\Enums\HttpMethod;
 use Lightscale\Router\Enums\PathSegmentType;
+use Lightscale\Router\Exceptions\MissingParameterException;
 use Lightscale\Router\PathSegment;
 use Lightscale\Router\Route;
 
@@ -146,10 +147,6 @@ it('gets the children count')
     ->expect(fn () => $makeWithChildren()->getChildrenCount())
     ->toBe(2);
 
-it('can build full path')
-    ->expect(fn () => $testChain()->getPath())
-    ->toBe('/test1/test2/test3');
-
 it('creates new child and returns')
     ->expect(fn () => (new PathSegment('test1'))->child('test2'))
     ->toBeInstanceOf(PathSegment::class)
@@ -191,6 +188,35 @@ it('can get a parameter segment child', function () {
     expect($seg->findChild('test4'))->toBe($c2);
 });
 
+it('can build full path')
+    ->expect(fn () => $testChain()->getPath())
+    ->toBe('/test1/test2/test3');
+
+it('can build path with parameters', function() {
+    $seg = new PathSegment(type: PathSegmentType::Root);
+    $child = $seg->child('test1')
+        ->child('test2', PathSegmentType::Parameter)
+        ->child('test3', PathSegmentType::Parameter)
+        ->child('test4');
+
+    expect($child->getPath([
+        'test2' => 'a',
+        'test3' => 'b',
+    ]))->toBe('/test1/a/b/test4');
+});
+
+it('throws when building path with missing parameters', function() {
+    $seg = new PathSegment(type: PathSegmentType::Root);
+    $child = $seg->child('test1')
+        ->child('test2', PathSegmentType::Parameter)
+        ->child('test3', PathSegmentType::Parameter)
+        ->child('test4');
+
+    expect($child->getPath([
+        'test2' => 'a',
+    ]))->toBe('/test1/a/b/test4');
+})->throws(MissingParameterException::class);
+
 it('sets route segment when added', function () {
     $seg = new PathSegment('test1');
     $seg->addRoute($r = new Route(