<?php

declare(strict_types=1);

namespace Classifier\Lib;

use Classifier\Lib\ClassificationMethod;
use Classifier\Lib\Enum\MessageType;

class MessageClassificationResult
{
    // FIXME : php8.1 readonly props

    /** @var MessageType */
    public $decision;

    /** @var ClassificationMethod */
    public $method;

    /** @var float */
    public $confidence;

    /** @var array<string,float> */
    private $details;

    /** @var MessageType|null */
    public $machineDecision;

    public function __construct(
        MessageType $decision,
        ClassificationMethod $method,
        float $confidence,
        array $details = [],
        ?MessageType $machineDecision = null
    ) {
        $this->decision = $decision;
        $this->method = $method;
        $this->confidence = $confidence;
        $this->details = $details;
        $this->machineDecision = $machineDecision;

        // * Validation des détails
        foreach ($details as $key => $value) {
            if (empty($key) || !is_string($key)) {
                throw new \InvalidArgumentException("Clé de détail invalide : " . var_export($key, true));
            }
            if (!is_float($value) && !is_int($value)) {
                throw new \InvalidArgumentException("Valeur de détail pour '$key' invalide : " . var_export($value, true));
            }
        }

        foreach ($details as $key => $value) {
            if (empty($key) || !is_string($key)) {
                throw new \InvalidArgumentException("Clé de détail invalide : " . var_export($key, true));
            }
            if (!is_float($value) && !is_int($value)) {
                throw new \InvalidArgumentException("Valeur de détail pour '$key' invalide : " . var_export($value, true));
            }
        }
    }

    /** @return array{word:string,score:float}[] */
    public function getDetails(): array
    {
        /** @var object{'word':string,'score':float}[] */
        $output = [];

        foreach ($this->details as $key => $value) {
            $output[] = (object)[
                'word' => $key,
                'score' => $value
            ];
        }
        return $output;
    }
}