<?php

namespace App\Http\Controllers;

use App\Http\Resources\HitcountResource;
use App\Models\Hitcount;
use App\Models\Log;
use Detection\MobileDetect;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Http;

class HitcountController extends Controller
{
    /**
     * @OA\Get(
     *     path="/api/hitcounts",
     *     summary="Get list of hitcounts (paginated, only admin)",
     *     description="Returns a paginated list of all recorded hitcounts. Requires admin privileges.",
     *     operationId="getHitcounts",
     *     tags={"Hitcounts"},
     *     security={{"bearerAuth":{}}},
     *     @OA\Response(
     *         response=200,
     *         description="List of hitcounts",
     *         @OA\JsonContent(
     *             type="object",
     *             @OA\Property(
     *                 property="data",
     *                 type="array",
     *                 @OA\Items(ref="#/components/schemas/HitcountResource")
     *             ),
     *             @OA\Property(property="links", type="object"),
     *             @OA\Property(property="meta", type="object")
     *         )
     *     ),
     *     @OA\Response(response=401, description="Unauthenticated"),
     *     @OA\Response(response=403, description="Forbidden (not admin)")
     * )
     */
    public function index()
    {
        $this->authorize('viewAny', Hitcount::class);
        return HitcountResource::collection(Hitcount::paginate());
    }

    /**
    * @OA\Get(
    *     path="/api/hitcounts/{id}",
    *     summary="Get a specific hitcount (only admin)",
    *     description="Returns detailed information about a specific hitcount. Requires admin privileges.",
    *     operationId="getHitcount",
    *     tags={"Hitcounts"},
    *     security={{"bearerAuth":{}}},
    *     @OA\Parameter(
    *         name="id",
    *         in="path",
    *         required=true,
    *         description="Hitcount ID",
    *         @OA\Schema(type="integer", example=1)
    *     ),
    *     @OA\Response(
    *         response=200,
    *         description="Hitcount details",
    *         @OA\JsonContent(ref="#/components/schemas/HitcountResource")
    *     ),
    *     @OA\Response(response=401, description="Unauthenticated"),
    *     @OA\Response(response=403, description="Forbidden (not admin)"),
    *     @OA\Response(response=404, description="Not Found")
    * )
     */
    public function show(Hitcount $hitcount)
    {
        $this->authorize('view', $hitcount);
        return new HitcountResource($hitcount);
    }

    /**
     * @OA\Delete(
     *     path="/api/hitcounts/{id}",
     *     summary="Delete a hitcount (only admin)",
     *     description="Deletes a specific hitcount entry. Requires admin privileges.",
     *     operationId="deleteHitcount",
     *     tags={"Hitcounts"},
     *     security={{"bearerAuth":{}}},
     *     @OA\Parameter(
     *         name="id",
     *         in="path",
     *         required=true,
     *         description="Hitcount ID to delete",
     *         @OA\Schema(type="integer", example=1)
     *     ),
     *     @OA\Response(
     *         response=200,
     *         description="Hitcount deleted successfully",
     *         @OA\JsonContent(
     *             type="object",
     *             @OA\Property(property="message", type="string", example="The hitcount was deleted")
     *         )
     *     ),
     *     @OA\Response(response=401, description="Unauthenticated"),
     *     @OA\Response(response=403, description="Forbidden (not admin)"),
     *     @OA\Response(response=404, description="Not Found")
     * )
     */
    public function destroy(Request $request, Hitcount $hitcount)
    {
        $this->authorize('delete', $hitcount);
        $hitcount->delete();
        Log::writeLog("Category '" . $hitcount->id . "' is deleted by " . $request->user()->username);
        return ['message' => 'The hitcount was deleted'];
    }


    /**
     * @OA\Post(
     *     path="/api/hit",
     *     summary="Register a hit for a URL",
     *     description="Stores information about a visit, including IP, device, user agent, and country",
     *     tags={"Hitcounts"},
     *     @OA\RequestBody(
     *         required=true,
     *         @OA\JsonContent(
     *             required={"url"},
     *             @OA\Property(property="url", type="string", maxLength=255, example="https://my-application.com")
     *         )
     *     ),
     *     @OA\Response(
     *         response=200,
     *         description="Hitcount successfully set",
     *         @OA\JsonContent(
     *             @OA\Property(property="message", type="string", example="The hitcount is set")
     *         )
     *     ),
     *     @OA\Response(
     *         response=422,
     *         description="Validation error",
     *         @OA\JsonContent(
     *             @OA\Property(property="message", type="string", example="The given data was invalid."),
     *             @OA\Property(
     *                 property="errors",
     *                 type="object",
     *                 example={"url": {"The url field is required."}}
     *             )
     *         )
     *     )
     * )
     */
    public function callHit(Request $request)
    {
        $fields = $request->validate([
            'url' => 'required|max:255'
        ]);
        $hitcount = new Hitcount();
        $ip = $request->ip();
        $hitcount->ip = $ip;
        $hitcount->user_agent = $request->userAgent();
        $hitcount->url = $fields['url'];
        $detect = new MobileDetect();
        $hitcount->device_type = ($detect->isMobile() ? ($detect->isTablet() ? 'tablet' : 'phone') : 'desktop');

        $previousHitcount = Hitcount::where('ip', $ip)->first();
        if($previousHitcount) {
            $hitcount->country = $previousHitcount->country;
        }
        else {
            $response = Http::get("http://ip-api.com/json/{$hitcount->ip}?fields=country");
            if ($response->ok()) {
                $hitcount->country = $response->json('country');
            } else {
                $hitcount->country = null;
            }
        }

        $hitcount->save();
        return ['message' => 'The hitcount is set'];
    }
}