3 files changed, 130 insertions, 3 deletions

diff --git a/src/PathSegment.php b/src/PathSegment.php
index e57667b..7f24660 100644
--- a/src/PathSegment.php
+++ b/src/PathSegment.php
@@ -4,19 +4,26 @@ declare(strict_types=1);
 
 namespace Lightscale\Router;
 
+use Lightscale\Router\Enums\HttpMethod;
 use Lightscale\Router\Enums\SpecialSegment;
 
 class PathSegment
 {
+    private const MAX_ANCESTORY_DEPTH = 100;
+
     protected string $content;
 
     protected ?SpecialSegment $specialSegment = null;
 
-    /** @var array<string, static> */
-    protected array $segments;
+    /** @var array<string, self> */
+    protected array $children;
+
+    /** @var array<value-of<HttpMethod>, Route[]> */
+    protected array $routes = [];
 
     public function __construct(
         SpecialSegment|string $content,
+        protected ?self $parent = null,
     ) {
         if ($content instanceof SpecialSegment) {
             $this->content = $content->value;
@@ -25,4 +32,56 @@ class PathSegment
             $this->content = $content;
         }
     }
+
+    public function getContent(): string
+    {
+        return $this->content;
+    }
+
+    public function getParent(): ?self
+    {
+        return $this->parent;
+    }
+
+    /** @return self[] */
+    public function getAncestors(): array
+    {
+        $results = [];
+
+        $count = 0;
+        $instance = $this->parent;
+        while (
+            null !== $instance
+            && $count++ < self::MAX_ANCESTORY_DEPTH
+        ) {
+            $results[] = $instance;
+            $instance = $instance->parent;
+        }
+
+        return array_reverse($results);
+    }
+
+    /** @return self[] */
+    public function getAncestorsAndSelf(): array
+    {
+        $results = $this->getAncestors();
+        $results[] = $this;
+
+        return $results;
+    }
+
+    public function addChild(self $segment): void
+    {
+        $this->children[$segment->getContent()] = $segment;
+    }
+
+    /** @return array<string, self> */
+    public function getChildren(): array
+    {
+        return $this->children;
+    }
+
+    public function addRoute(): void
+    {
+    }
 }
diff --git a/tests/Unit/PathSegmentTest.php b/tests/Unit/PathSegmentTest.php
new file mode 100644
index 0000000..1d19e0e
--- /dev/null
+++ b/tests/Unit/PathSegmentTest.php
@@ -0,0 +1,68 @@
+<?php
+
+declare(strict_types=1);
+
+use Lightscale\Router\PathSegment;
+
+it('initializes')
+    ->expect(fn () => new PathSegment('test'))
+    ->toBeInstanceOf(PathSegment::class);
+
+it('can get the content')
+    ->expect(fn () => (new PathSegment('test'))->getContent())
+    ->toBe('test');
+
+it('can get the parent')
+    ->expect(fn () => (new PathSegment(
+        'test1',
+        new PathSegment('test2')
+    ))->getParent())
+    ->toBeInstanceOf(PathSegment::class)
+    ->getContent()->toBe('test2');
+
+it('has null parent by default')
+    ->expect(fn () => (new PathSegment('test'))->getParent())
+    ->toBeNull();
+
+$testChain = fn () => new PathSegment(
+    'test3',
+    new PathSegment(
+        'test2',
+        new PathSegment(
+            'test1'
+        )
+    )
+);
+
+it('can get all ancestors')
+    ->expect(fn () => $testChain()->getAncestors())
+    ->toBeArray()
+    ->toContainOnlyInstancesOf(PathSegment::class)
+    ->toHaveCount(2);
+
+it('order all ancestors root first')
+    ->expect(fn () => $testChain()->getAncestors())
+    ->{0}->getContent()->toBe('test1')
+    ->{1}->getContent()->toBe('test2');
+
+it('can get all ancestors and self')
+    ->expect(fn () => $testChain()->getAncestorsAndSelf())
+    ->toBeArray()
+    ->toContainOnlyInstancesOf(PathSegment::class)
+    ->toHaveCount(3);
+
+it('order all ancestors and self root first')
+    ->expect(fn () => $testChain()->getAncestorsAndSelf())
+    ->{0}->getContent()->toBe('test1')
+    ->{1}->getContent()->toBe('test2')
+    ->{2}->getContent()->toBe('test3');
+
+it('can have children')->todo();
+
+it('can build full path')->todo();
+
+it('can have routes')->todo();
+
+it('can get routes by method')->todo();
+
+it('can get routes for all methods')->todo();
diff --git a/tests/Unit/RouteTest.php b/tests/Unit/RouteTest.php
index 5e3dc3b..0414649 100644
--- a/tests/Unit/RouteTest.php
+++ b/tests/Unit/RouteTest.php
@@ -13,4 +13,4 @@ it('initializes')
         HttpMethod::Get,
         fn () => null
     ))
-    ->toBeInstance(Route::class);
+    ->toBeInstanceOf(Route::class);