<?

class apiManager {
    public $query;
    public $get;
    public $post;
    public $body;
    public $method;
    public $spec;
    public $errorCode;
    public $errorDescription;
    public $errorHeader;
    public $endPoint;
    public $codiceLog;
    public $debug;
    public $init;
    public $root;
    private $ente;
    private $db;
    private $config;

    public static function getAPISpecs() {
      $api = json_decode(file_get_contents(__DIR__."/api.json"),true);
      return $api;
    }

    public function __construct($token)
    {
      global $pdo;
      global $config;
      global $root;
      $this->spec = self::getAPISpecs();
      $this->errorCode = "500";
      $this->errorDescription = "Errore generico";
      $this->errorHeader = "500";
      $this->endPoint = "/api/rest/service.php";
      $this->debug = false;
      $this->root = $root;
      $this->init = false;
      if (!empty($pdo)) {
        $ente = $pdo->go("SELECT * FROM b_enti WHERE token = :token",[":token"=>$token])->fetch(PDO::FETCH_ASSOC);
        if (!empty($ente)) {
          $obj = new Ente();
          $obj->init($ente["dominio"]);
          if (!empty($obj->codice)) {
            $this->init = true;
            $this->db = $pdo;
            $this->config = $config;
            $this->ente = $obj;
          }
        } else {
          return false;
        }
      } else {
        return false;
      }
    }
    
    public static function validateRequest($parameters,$values, $required = null) {
      $return = false;
      if (!empty($parameters)) {
        $errors = [];
        $found = 0;
        $countRequired = 0;
        foreach($parameters AS $pKey => $parametro) {
         if (!empty($parametro["name"]) && is_numeric($pKey)) { $pKey = $parametro["name"]; }
         if (isset($values[$pKey])) { $found++; }
          $valore = (isset($values[$pKey])) ? $values[$pKey] : "";
          if (!empty($required)) {
            if (is_array($required)) {
             if (in_array($pKey,$required)) { $parametro["required"] = true; }
            } else if ($required === true) {
              $parametro["required"] = true;
            }
          }
         if (!empty($parametro["required"])) { $countRequired++; }
          if (!empty($parametro["required"]) && empty($valore) && $valore != "0" && $parametro["type"] != "array" && $parametro["type"] != "object") {
            $errors[$pKey] = "Obbligatorio";
          } else {
            if (isset($parametro["type"]) && ($parametro["type"] == "array" || $parametro["type"] == "object")) {
              if ($parametro["type"] == "array" && !isset($parametro["properties"])) {
                if (isset($parametro["items"][0]["properties"])) {
                  $innerPar = $parametro["items"][0]["properties"];  
                }
              } else if (isset($parametro["properties"])) {
                $innerPar = $parametro["properties"];
              }
              if (isset($innerPar)) {
                $keys = array_keys($innerPar);
                $required = (!empty($parametro["required"])) ? $parametro["required"] : null;
                if (!empty($values[$pKey])) {
                 if (is_array($values[$pKey]) && isset($values[$pKey][$keys[0]])) { $values[$pKey] = [$values[$pKey]]; }
                  foreach($values[$pKey] AS $subValues) {
                    $result = SELF::validateRequest($innerPar,$subValues,$required);
                    if ($result !== true) {
                      $errors = array_merge($errors,$result);
                    }
                  }
                }
              }
            } 
            
            if (isset($parametro["type"])) {
              if ($parametro["type"]=="number" && !is_numeric($valore) && !empty($valore)) {
                $errors[$pKey] = "Formato errato";
              }
            }
            // TODO: CONTROLLARE $ref
            if ((!empty($parametro["schema"]["pattern"]) || !empty($parametro["pattern"])) && !empty($valore)) {
              $pattern = (isset($parametro["schema"]["pattern"])) ? $parametro["schema"]["pattern"] : $parametro["pattern"];
              if (!preg_match("/".$pattern."/",$valore)) {
                $errors[$pKey] = "Formato errato";
              }
            }
            if (!empty($parametro["schema"]["enum"]) || !empty($parametro["enum"]) && !empty($valore)) {
              $enum = (isset($parametro["schema"]["enum"])) ? $parametro["schema"]["enum"] : $parametro["enum"];
              $chiavi = array_keys($enum);
              foreach($chiavi AS $chiave)if (!is_numeric($chiave)) { $enum = $chiavi; break; }
              if (in_array($valore,$enum) === false) {
                var_dump($enum);
                $errors[$pKey] = "Valore non previsto";
              }
            }
          }
        }
        if ($found == 0 && count($errors) == 0 && $countRequired > 0) {
          $errors = "Richiesta errata";
        }
        if (count($errors) == 0) {
          $return = true;
        } else {
          $return = $errors;
        }
      }
      return $return;
    }

    public function handleRequest() {
      $return = false;

      $log = [];
      $log["endPoint"] = $this->endPoint;
      $log["method"] = $this->method;
      $log["request"] = json_encode($this->query,true);
      $log["timestamp_creazione"] = date('Y-m-d H:i:s');
      $log["codice_ente"] = $this->ente->codice;
      $salva = new salva();
      
      $salva->nome_tabella = "b_log_api";
      $salva->operazione = 'INSERT';
      $salva->oggetto = $log;
      $log["codice"] = $salva->save();
      $this->codiceLog = $log["codice"];
      $metodi = get_class_methods("apiManager");
      if (in_array($this->method,$metodi)!==false) {
        $return = $this->{$this->method}();
      } else {
        $this->errorCode = "404";
        $this->errorDescription = "Metodo sconosciuto";
        $this->errorHeader = "404";
      }
      $log["header"] = 200;
      if ($return === false) {
        $error = ["errorHeader" => $this->errorHeader,"errorCode"=>$this->errorCode,"errorDescription"=>$this->errorDescription];
        $log["header"] = $this->errorHeader;
        $log["errors"] = json_encode($error,true);
      }
      $salva->operazione = 'UPDATE';
      $salva->oggetto = $log;
      $salva->save();
      return $return;
    }

    public function getAlbi() {
      return publicAlboFornitori::API_getAlbi($this->get["codice"] ?? 0);
    }
    public function getFiltriAlbo() {
      return publicAlboFornitori::API_getFiltriAlbo($this->get["codice"]);
    }
    public function getPartecipantiAlbo() {
      return publicAlboFornitori::API_getPartecipantiAlbo($this->get["codice"], $this->body["filters"] ?? [], $this->body["order"] ?? [], $this->body["limit"] ?? []);
    }
    public function listPCP() {
      $risultati = publicPCP::getList($this->ente->codice,[],["b_pcp.id"=>"DESC"],(int)$this->query["start"],(int)$this->query["start"]);
      return $risultati;
    }

    public function getPCP() {
      if (!empty($this->query["codice"])) {
        $_SESSION["ente"] = $this->ente;
        $pcp = publicPCP::init($this->query["codice"]);
        if (!empty($pcp->info["codice"]) && $pcp->info["codice"] == $this->query["codice"]) {
          $return = $pcp->info;
          $fasi = $pcp->getRounds();
          $return["fasi"] = [];
          foreach($fasi AS $fase) {
            $fase["extraInfo"] = json_decode($fase["extraInfo"],true);
            unset($fase["codice_pcp"]);
            unset($fase["aperturaSequenziale"]);
            unset($fase["utente_creazione"]);
            unset($fase["utente_modifica"]);
            $return["fasi"][] = $fase;
          }
          unset($return["public_key"]);
          unset($return["private_verified"]);
          unset($return["riferimento_consultazione"]);
          unset($return["utente_creazione"]);
          unset($return["utente_modifica"]);
          $return["extraInfo"] = json_decode($return["extraInfo"],true);
          return $return;
        }
      } else {
        return ["codice"=>"Campo obbligatorio"];
      }
    }

    public function getStatiPCP() {
      return publicPCP::getStati();
    }
  }
?>