From d7536ce0af29e9c9e2703ea94a91dd0789d06f46 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Samuel=20=C5=A0tancl?= <samuel.stancl@gmail.com>
Date: Wed, 20 May 2020 20:34:16 +0200
Subject: [PATCH] CachedTenantResolver

---
 src/Resolvers/CachedTenantResolver.php | 38 +++++++++++++++++++++++++
 tests/CachedResolutionTest.php         |  0
 tests/CachedTenantResolverTest.php     | 39 ++++++++++++++++++++++++++
 3 files changed, 77 insertions(+)
 create mode 100644 src/Resolvers/CachedTenantResolver.php
 delete mode 100644 tests/CachedResolutionTest.php
 create mode 100644 tests/CachedTenantResolverTest.php

diff --git a/src/Resolvers/CachedTenantResolver.php b/src/Resolvers/CachedTenantResolver.php
new file mode 100644
index 00000000..c09e54d8
--- /dev/null
+++ b/src/Resolvers/CachedTenantResolver.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Stancl\Tenancy\Resolvers;
+
+use Illuminate\Cache\Repository;
+use Stancl\Tenancy\Contracts\Tenant;
+use Stancl\Tenancy\Contracts\TenantResolver;
+
+class CachedTenantResolver implements TenantResolver
+{
+    /** @var Repository */
+    protected $cache;
+
+    public function __construct(Repository $cache)
+    {
+        $this->cache = $cache;
+    }
+
+    public function resolve(...$args): Tenant
+    {
+        $resolverClass = $args[0];
+        $data = $args[1];
+
+        /** @var TenantResolver $resolver */
+        $resolver = app($resolverClass);
+        $encodedData = json_encode($data);
+
+        if ($this->cache->has($key = "_tenancy_resolver:$resolverClass:$encodedData")) {
+            return $this->cache->get($key);
+        }
+
+        $this->cache->put($key,
+            $resolved = $resolver->resolve(...$data)
+        );
+
+        return $resolved;
+    }
+}
diff --git a/tests/CachedResolutionTest.php b/tests/CachedResolutionTest.php
deleted file mode 100644
index e69de29b..00000000
diff --git a/tests/CachedTenantResolverTest.php b/tests/CachedTenantResolverTest.php
new file mode 100644
index 00000000..4a0ea8a8
--- /dev/null
+++ b/tests/CachedTenantResolverTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Stancl\Tenancy\Tests;
+
+use Stancl\Tenancy\Resolvers\CachedTenantResolver;
+use Stancl\Tenancy\Resolvers\DomainTenantResolver;
+use Stancl\Tenancy\Tests\Etc\Tenant;
+
+class CachedTenantResolverTest extends TestCase
+{
+    /** @test */
+    public function tenants_can_be_resolved_using_the_cached_resolver()
+    {
+        $tenant = Tenant::create();
+        $tenant->domains()->create([
+            'domain' => 'acme',
+        ]);
+
+        $this->assertTrue($tenant->is(app(DomainTenantResolver::class)->resolve('acme')));
+        $this->assertTrue($tenant->is(app(CachedTenantResolver::class)->resolve(DomainTenantResolver::class, ['acme'])));
+    }
+
+    /** @test */
+    public function the_underlying_resolver_is_not_touched_when_using_the_cached_resolver()
+    {
+        $tenant = Tenant::create();
+        $tenant->domains()->create([
+            'domain' => 'acme',
+        ]);
+
+        $this->assertTrue($tenant->is(app(CachedTenantResolver::class)->resolve(DomainTenantResolver::class, ['acme'])));
+
+        $this->mock(DomainTenantResolver::class, function ($mock) {
+            return $mock->shouldNotReceive('resolve');
+        });
+
+        $this->assertTrue($tenant->is(app(CachedTenantResolver::class)->resolve(DomainTenantResolver::class, ['acme'])));
+    }
+}
\ No newline at end of file