<?php

namespace Tests\Unit\Resources;

use Domains\Feed\Resources\RouteResource;
use Domains\Feed\Models\Route;
use Domains\Feed\Models\Feed;
use Domains\Platform\Models\PlatformChannel;
use Domains\Article\Models\Keyword;
use Illuminate\Http\Request;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class RouteResourceTest extends TestCase
{
    use RefreshDatabase;

    public function test_to_array_returns_correct_basic_structure(): void
    {
        $feed = Feed::factory()->create();
        $channel = PlatformChannel::factory()->create();
        
        $route = Route::factory()->create([
            'feed_id' => $feed->id,
            'platform_channel_id' => $channel->id,
            'is_active' => true,
            'priority' => 1,
        ]);

        $request = Request::create('/test');
        $resource = new RouteResource($route);

        $result = $resource->toArray($request);

        $this->assertIsArray($result);
        $this->assertArrayHasKey('id', $result);
        $this->assertArrayHasKey('feed_id', $result);
        $this->assertArrayHasKey('platform_channel_id', $result);
        $this->assertArrayHasKey('is_active', $result);
        $this->assertArrayHasKey('priority', $result);
        $this->assertArrayHasKey('created_at', $result);
        $this->assertArrayHasKey('updated_at', $result);
        $this->assertArrayHasKey('feed', $result);
        $this->assertArrayHasKey('platform_channel', $result);
        $this->assertArrayHasKey('keywords', $result);

        $this->assertEquals($route->id, $result['id']);
        $this->assertEquals($route->feed_id, $result['feed_id']);
        $this->assertEquals($route->platform_channel_id, $result['platform_channel_id']);
        $this->assertTrue($result['is_active']);
        $this->assertEquals(1, $result['priority']);
    }

    public function test_to_array_formats_dates_as_iso_strings(): void
    {
        $feed = Feed::factory()->create();
        $channel = PlatformChannel::factory()->create();
        
        $route = Route::factory()->create([
            'feed_id' => $feed->id,
            'platform_channel_id' => $channel->id,
        ]);

        $request = Request::create('/test');
        $resource = new RouteResource($route);

        $result = $resource->toArray($request);

        // Check that dates are formatted as ISO strings
        $this->assertStringContainsString('T', $result['created_at']);
        $this->assertStringContainsString('Z', $result['created_at']);
        $this->assertStringContainsString('T', $result['updated_at']);
        $this->assertStringContainsString('Z', $result['updated_at']);
    }

    public function test_to_array_includes_loaded_feed_relationship(): void
    {
        $feed = Feed::factory()->create(['name' => 'Test Feed']);
        $channel = PlatformChannel::factory()->create();
        
        $route = Route::factory()->create([
            'feed_id' => $feed->id,
            'platform_channel_id' => $channel->id,
        ]);

        // Load the relationship
        $route->load('feed');

        $request = Request::create('/test');
        $resource = new RouteResource($route);

        $result = $resource->toArray($request);

        $this->assertArrayHasKey('feed', $result);
        // Feed relationship returns a FeedResource object when loaded
        $this->assertInstanceOf(\Domains\Feed\Resources\FeedResource::class, $result['feed']);
    }

    public function test_to_array_includes_loaded_platform_channel_relationship(): void
    {
        $feed = Feed::factory()->create();
        $channel = PlatformChannel::factory()->create(['name' => 'Test Channel']);
        
        $route = Route::factory()->create([
            'feed_id' => $feed->id,
            'platform_channel_id' => $channel->id,
        ]);

        // Load the relationship
        $route->load('platformChannel');

        $request = Request::create('/test');
        $resource = new RouteResource($route);

        $result = $resource->toArray($request);

        $this->assertArrayHasKey('platform_channel', $result);
        // Platform channel relationship returns a PlatformChannelResource object when loaded
        $this->assertInstanceOf(\Domains\Platform\Resources\PlatformChannelResource::class, $result['platform_channel']);
    }

    public function test_to_array_includes_keywords_field(): void
    {
        $feed = Feed::factory()->create();
        $channel = PlatformChannel::factory()->create();
        
        $route = Route::factory()->create([
            'feed_id' => $feed->id,
            'platform_channel_id' => $channel->id,
        ]);

        // Load the relationship (even if empty)
        $route->load('keywords');

        $request = Request::create('/test');
        $resource = new RouteResource($route);

        $result = $resource->toArray($request);

        // Verify that keywords field exists and has proper structure
        $this->assertArrayHasKey('keywords', $result);
        
        // The keywords field should be present, whether empty or not
        $this->assertTrue(is_array($result['keywords']) || $result['keywords'] instanceof \Illuminate\Support\Collection);
        
        // Convert to array if it's a Collection
        $keywords = $result['keywords'];
        if ($keywords instanceof \Illuminate\Support\Collection) {
            $keywords = $keywords->toArray();
        }
        
        // Should be an array (could be empty)
        $this->assertIsArray($keywords);
    }

    public function test_to_array_handles_empty_keywords(): void
    {
        $feed = Feed::factory()->create();
        $channel = PlatformChannel::factory()->create();
        
        $route = Route::factory()->create([
            'feed_id' => $feed->id,
            'platform_channel_id' => $channel->id,
        ]);

        // Load the relationship (but no keywords attached)
        $route->load('keywords');

        $request = Request::create('/test');
        $resource = new RouteResource($route);

        $result = $resource->toArray($request);

        $this->assertArrayHasKey('keywords', $result);
        // Empty keywords relationship should return empty array or empty Collection
        $this->assertTrue(is_array($result['keywords']) || $result['keywords'] instanceof \Illuminate\Support\Collection);
        
        // Convert to array if it's a Collection
        $keywords = $result['keywords'];
        if ($keywords instanceof \Illuminate\Support\Collection) {
            $keywords = $keywords->toArray();
        }
        
        $this->assertCount(0, $keywords);
    }

    public function test_resource_can_be_created_and_converted_to_json(): void
    {
        $feed = Feed::factory()->create();
        $channel = PlatformChannel::factory()->create();
        
        $route = Route::factory()->create([
            'feed_id' => $feed->id,
            'platform_channel_id' => $channel->id,
        ]);

        $resource = new RouteResource($route);
        
        // Test that the resource can be serialized to JSON
        $json = $resource->toJson();
        
        $this->assertIsString($json);
        $this->assertJson($json);
        
        $decoded = json_decode($json, true);
        $this->assertArrayHasKey('id', $decoded);
        $this->assertArrayHasKey('feed_id', $decoded);
        $this->assertArrayHasKey('platform_channel_id', $decoded);
    }
}