<?php

namespace App\Http\Controllers;

use App\Exceptions\MissingRewardedAdUnit;
use App\Exceptions\RewardedAdUnavailable;
use App\Http\Requests\RewardedAdSessionRequest;
use App\Models\RewardedAdSession;
use App\Services\GenerationCreditService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class GenerationCreditController extends Controller
{
    public function show(Request $request, GenerationCreditService $credits): JsonResponse
    {
        return response()->json([
            'data' => $credits->summary($request->user()),
        ]);
    }

    public function storeRewardedAdSession(
        RewardedAdSessionRequest $request,
        GenerationCreditService $credits,
    ): JsonResponse {
        try {
            $session = $credits->createRewardedAdSession(
                $request->user(),
                $request->validated('platform'),
            );
        } catch (RewardedAdUnavailable $exception) {
            return response()->json([
                'message' => $exception->getMessage(),
            ], 422);
        } catch (MissingRewardedAdUnit $exception) {
            return response()->json([
                'message' => $exception->getMessage(),
            ], 503);
        }

        return response()->json([
            'data' => $this->rewardedAdSessionPayload($session),
        ], $session->wasRecentlyCreated ? 201 : 200);
    }

    /**
     * @return array{id: string, adUnitId: ?string, customData: string, userId: string, expiresAt: string}
     */
    private function rewardedAdSessionPayload(RewardedAdSession $session): array
    {
        return [
            'id' => $session->id,
            'adUnitId' => $session->ad_unit_id,
            'customData' => $session->custom_data,
            'userId' => $session->user_id,
            'expiresAt' => $session->expires_at->toIso8601String(),
        ];
    }
}