<?php

namespace App\Models;

use App\Events\PerceptronTrainingEnded;
use App\Services\DataSetReader;
use App\Services\PerceptronIterationEventBuffer;

abstract class NetworkTraining
{
    protected int $iteration = 0;

    /**
     * @abstract
     * @var ActivationsFunctions
     */
    public ActivationsFunctions $activationFunction;

    public function __construct(
        protected DataSetReader $datasetReader,
        protected int $maxIterations,
        protected PerceptronIterationEventBuffer $iterationEventBuffer,
        protected string $sessionId,
        protected string $trainingId,
    ) {
    }

    abstract public function start() : void;
    abstract protected function stopCondition(): bool;

    protected function checkPassedMaxIterations() {
        if ($this->iteration >= $this->maxIterations) {
            event(new PerceptronTrainingEnded('Le nombre maximal d\'itérations a été atteint', $this->sessionId, $this->trainingId));
        }
    }

    protected function addIterationToBuffer(float $error, array $synapticWeights) {
        $this->iterationEventBuffer->addIteration($this->iteration, $this->datasetReader->getLastReadLineIndex(), $error, $synapticWeights);
    }
}