<?php

namespace App\Http\Controllers\Api\Posts;

use App\Http\Controllers\Controller;
use App\Models\Post;
use App\Services\Posts\PostAnalyticsService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

/**
 * POST /api/posts/{id}/impression  — record an impression (throttled)
 * GET  /api/posts/{id}/analytics   — owner analytics summary
 */
class PostAnalyticsController extends Controller
{
    public function __construct(private PostAnalyticsService $analytics) {}

    public function impression(Request $request, int $id): JsonResponse
    {
        $post = Post::where('status', Post::STATUS_PUBLISHED)->findOrFail($id);

        // Session key: authenticated user ID or hashed IP
        $sessionKey = $request->user()
            ? 'u:' . $request->user()->id
            : 'ip:' . md5($request->ip());

        $counted = $this->analytics->trackImpression($post, $sessionKey);

        return response()->json(['counted' => $counted]);
    }

    public function show(Request $request, int $id): JsonResponse
    {
        $post = Post::findOrFail($id);

        // Only the post owner can view analytics
        if ($request->user()?->id !== $post->user_id) {
            abort(403, 'You do not own this post.');
        }

        return response()->json(['data' => $this->analytics->getSummary($post)]);
    }
}
