<?php
class Metier_Scores_Projection
{
	/**
	 * Tableau des années de millesime de bilans
	 */
	public $tabRegX;

	/**
	 * Tableau des années en paramètres
	 */
	protected $Y;

	/**
	 * + $nbAnnees Projetées
	 */
	protected $Yaff;

	/**
	 * Taux de projection de n à n+$nbAnnees
	 */
	protected $PROJECTAUX;

	/**
	 * Coef de corélation linéaire
	 */
	protected $PROJECCOEF;


	public function getY()
	{
		return $this->Y;
	}

	public function getYaff()
	{
		return $this->Yaff;
	}

	public function getProjecTaux()
	{
		return $this->PROJECTAUX;
	}

	public function getProjecCoeff()
	{
		return $this->PROJECCOEF;
	}

	/**
	 * Remplace la function PROJECCOEF
	 * @param array $tabRegY
	 * @param array $nbAnnees
	 * @return boolean|number
	 */
	public function calcCOEF($tabRegY, $nbAnnees)
	{
		if ( count($this->tabRegX) == 0 || count($tabRegY) == 0 ) {
			return false;
		}

		$oReg = new Metier_Scores_Regression($tabRegY, $this->tabRegX);
		return $oReg->vCoefCorLin;
	}

	/**
	 * Remplace la function PROJEC
	 * @param array $tabRegY
	 * @param array $nbAnnees
	 * @return boolean|mixed
	 */
	public function calc($tabRegY, $nbAnnees)
	{
		if ( count($this->tabRegX) == 0 || count($tabRegY) == 0 ) {
			return false;
		}

		$oReg = new Metier_Scores_Regression($tabRegY, $this->tabRegX);
		$tab = $oReg->GetProjectionDebut($nbAnnees);

		$this->Y = $this->Yaff = array();
		$nbRegX = count($this->tabRegX);
		// Début des clés pour le tableau Y des critères
		$j = 0 - $nbRegX;
		foreach($tab as $i=>$valeur) {
			$j++;
			if ( isset($this->tabRegX[$i]) ) {
				$this->Yaff[''.$this->tabRegX[$i].' '] = $this->Y[$j] = $tab[$i];
				$lastX = $this->tabRegX[$i];
			} else {
				$lastX++;
				$this->Yaff[''.$lastX.' '] = $this->Y[$j] = $tab[$i];
			}
		}

		$this->PROJECTAUX = $oReg->TauxProgression($nbAnnees);
		$this->PROJECCOEF = $oReg->vCoefCorLin*100;

		return end($tab);
	}

	/**
	 * Remplace la function PROJECTAUX
	 * @param array $tabRegY
	 * @param array $nbAnnees
	 * @return boolean|number
	 */
	public function calcTAUX($tabRegY, $nbAnnees)
	{
		if ( count($this->tabRegX) == 0 || count($tabRegY) == 0 ) {
			return false;
		}

		$oReg = new Metier_Scores_Regression($tabRegY, $this->tabRegX);
		return $oReg->TauxProgression($nbAnnees);
	}

}