<?php

declare(strict_types=1);

namespace TFGraphics\SmartImport\Merge;

final class MergeEvidence
{
    private string $field;
    private $value;
    private string $provider;
    private float $confidence;
    private float $quality;
    private ?\DateTimeImmutable $observedAt;

    public function __construct(string $field, $value, string $provider, float $confidence, float $quality, ?\DateTimeImmutable $observedAt = null)
    {
        $this->field = trim($field);
        $this->value = $value;
        $this->provider = trim($provider) ?: 'unknown';
        $this->confidence = max(0.0, min(1.0, $confidence));
        $this->quality = max(0.0, min(1.0, $quality));
        $this->observedAt = $observedAt;
    }

    public function getField(): string { return $this->field; }
    public function getValue() { return $this->value; }
    public function getProvider(): string { return $this->provider; }
    public function getConfidence(): float { return $this->confidence; }
    public function getQuality(): float { return $this->quality; }
    public function getObservedAt(): ?\DateTimeImmutable { return $this->observedAt; }
}