<?php

use \ParagonIE\EasyDB\Exception;

class Application
{
    private $database = [];
    
    private $db;
    
    public function __construct()
    {
        $config = new Config();
        $cConfigArray = $config->getConfig();
        
        
       
        $this->database['username'] = $cConfigArray['core']['database']['username'];
        $this->database['password'] = $cConfigArray['core']['database']['password'];
        $this->database['hostname'] = $cConfigArray['core']['database']['hostname'];
        $this->database['dbname'] = $cConfigArray['core']['database']['dbname'];
        
        $this->db = $this->instDB();
        
    }
    
    protected function instDB()
    {// ConstructorFailed
       
        
       try
       {
            // FIXME: Find hidden bug ($Conn is null)
            $Conn = \ParagonIE\EasyDB\Factory::create(
                'mysql:host=' . $this->database['hostname'] . ';dbname=' . $this->database['dbname'],
                $this->database['username'],
                $this->database['password']
            );    
            
            if (is_null($Conn))
            {
                throw new Exception("ERROR! There is no usable connection object.");
            }
       
       }
       catch (ConstructorFailed $Ex)
       {
           Analog::log("ALARM! Database connection failed! Message from Wrapper: " . $Ex->getMessage(), Analog::ALERT);
           
       }
       catch (Exception $ConEx)
       {
           Analog::log("ALERT! Unstable DB connection", Analog::ALERT);   
       }
       finally
       {
           
           Analog::log("Returning DB connection\n" . var_dump($Conn), Analog::DEBUG);
           return $Conn;
       }
    }
    
    public function Exists($Table, $IDRowColumnName, $SearchValue)
    {
        $exists = $db->cell(
            "SELECT count(ID) FROM $Table WHERE $IDRowColumnName = ?",
            $SearhValue
        ); 
        
        // Query might not return what we're looking for, an integer. Use vardump if otherwise.
        return ($exists == 1) ? true : false;
    }
    
    public function adminExists($AdminID)
    {
        $this->Exists("Administrators", "ID", $ID);
    }

    
    public function addAdministrator($Username, $Name, $Email, $Password, $KeyID)
    {
        $this->db->insert('Administrators', [
            'AdministratorName' => $Name,
            'AdministratorUsername' => $Username,
            'AdministratorEmail' => $Email,
            'AdministratorPassword' => $Password
        ]);
    }
    
    public function listAdminsByName($AdminUsername)
    {
        $Admin = $this->db->row(
            "SELECT * FROM Administrators WHERE Username = ?",
            $Username
        );
    }
    
    
    public function addKey($AdminID, $Keyname)
    {
        $key = password_hash(openssl_random_pseudo_bytes(32), PASSWORD_BCYPT);
        
        $this->db->insert('APIKeys', [
            'AdminID' => $AdminID,
            'Keyname' => $Keyname,
            'Keytext' => $key 
        ]);
        
        return $key;
        
    }
    
    public function ApiKeyExists($AdminID)
    {
        $this->Exists("APIKeys", "AdminID", $AdminID);
        
    }
    
    public function ApiKeyToAdminId($Key)
    {
        $apiKey = $this->db->row(
            "SELECT * FROM APIKeys WHERE Keytext = ?",
            $Key
        );
        
        // Expecting an array. Var dump if else
        if ($apiKey == null && !is_array($apiKey))
        {
            throw new LogicException("Illegal data from DB: ApiKeyToAdminId");
        }
    }
    
    
}