<?php
namespace App;

use Carbon\Carbon;
use Illuminate\Database\Connection;

class ActivationRepository{

    protected $db;
    protected $table = "user_activations";

    public function __construct(Connection $db){
        $this->db = $db;
    }

    protected function getToken(){
        return hash_hmac('sha256', str_random(40), config('app.key'));
    }

    public function createActivation($user){
        $activation = $this->getActivation($user);
        if(!$activation){
            return $this->createToken($user);
        }
        return $this->regenerateToken($user);
    }

    private function regenerateToken($user){
        $token = $this->getToken();
        $this->db->table($this->table)->where('user_id', $user->id)->update([
            'token' => $token,
            'created_at' => new Carbon()
        ]);
        return $token;
    }

    private function createToken($user){
        $token = $this->getToken();
        $this->db->table($this->table)->insert([
            'user_id' => $user->id,
            'token' => $token,
            'created_at' => new Carbon()
        ]);
        return $token;
    }

    public function getActivation($user){
        return $this->db->table($this->table)->where('user_id', $user->id)->first();
    }

    public function getActivationByToken($token){
        return $this->db->table($this->table)->where('token', $token)->first();
    }

    public function deleteActivation($token){
        return $this->db->table($this->table)->where('token', $token)->delete();
    }
}