SignupCodeObserver.php
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SignupCodeObserver.php
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	<?php

	namespace App\Observers;

	use App\SignupCode;
	use Carbon\Carbon;
	use Illuminate\Support\Str;

	class SignupCodeObserver
	{
	/**
	* Handle the "creating" event.
	*
	* Ensure that the code entry is created with a random code/short_code.
	*
	* @param \App\SignupCode $code The code being created.
	*
	* @return void
	*/
	public function creating(SignupCode $code): void
	{
	$code_length = SignupCode::CODE_LENGTH;
	$exp_hours = env('SIGNUP_CODE_EXPIRY', SignupCode::CODE_EXP_HOURS);

	if (empty($code->code)) {
	$code->short_code = SignupCode::generateShortCode();

	// FIXME: Replace this with something race-condition free
	while (true) {
	$code->code = Str::random($code_length);
	if (!SignupCode::find($code->code)) {
	break;
	}
	}
	}

	$code->expires_at = Carbon::now()->addHours($exp_hours);
	}
	}