<?php

namespace App\Http\Controllers\Api\V2;

use App\Enums\ApiError;
use App\Exceptions\Api\V2\ApiErrorException;
use App\Exceptions\Api\V2\CrmException;
use App\Http\Controllers\Controller;
use App\Http\Requests\Api\V2\SingleOptinRequest;
use App\Models\CustomerInfo;
use App\Models\Service;
use App\Models\SingleOptin;

class OptinController extends Controller
{
    /**
     * Creates a new Single optin or destroys it if exists
     *
     * @param SingleOptinRequest $request
     * @param Service            $service
     * @return JsonResponse
     * @throws ApiErrorException With ApiError::singleOptinCustomerExists if this email already has a full account.
     * @throws CrmException If the single optin could not be added or removed.
     */
    public function optin(SingleOptinRequest $request, Service $service)
    {
        if (CustomerInfo::getFromEmail($service->brand, $request->email)->exists()) {
            throw new ApiErrorException(ApiError::singleOptinCustomerExists());
        }

        /** @var \App\Models\SingleOptin */
        $singleOptin = SingleOptin::where('email', $request->email)
        ->whereHas('brand', function ($q) use ($service) {
            $q->whereId($service->brand->id);
        })->firstOrNew();

        if ($request->opt_in) {
            $singleOptin->fill($request->validated());
            $singleOptin->brand()->associate($service->brand);
            $success = $singleOptin->save();
        } else {
            $success = $singleOptin->delete() !== false;
        }

        if (!$success) {
            // @codeCoverageIgnoreStart
            throw new CrmException('Api failed to update single optin.');
            // @codeCoverageIgnoreEnd
        }

        return response()->json();
    }
}