Teren-app/app/Services/DecisionEvents/ConditionEvaluator.php

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<?php
namespace App\Services\DecisionEvents;
class ConditionEvaluator
{
/**
* Returns true when ALL conditions pass (AND logic).
*
* Each condition: { field: string, operator: string, value: mixed }
*
* @param array<int, array{field: string, operator: string, value: mixed}> $conditions
*/
public function evaluate(array $conditions, DecisionEventContext $context): bool
{
foreach ($conditions as $condition) {
if (! $this->evaluateOne($condition, $context)) {
return false;
}
}
return true;
}
protected function evaluateOne(array $condition, DecisionEventContext $context): bool
{
$field = $condition['field'] ?? '';
$operator = $condition['operator'] ?? '=';
$expected = $condition['value'] ?? null;
$actual = $this->resolveField($field, $context);
return $this->compare($actual, $operator, $expected);
}
protected function resolveField(string $field, DecisionEventContext $context): mixed
{
return match ($field) {
'activity.amount' => $context->activity?->amount,
'activity.note' => $context->activity?->note,
'contract.active' => $context->contract !== null ? (bool) $context->contract->active : null,
'contract.account.balance_amount' => $this->resolveAccountBalance($context),
default => null,
};
}
private function resolveAccountBalance(DecisionEventContext $context): mixed
{
if (! $context->contract) {
return null;
}
$context->contract->loadMissing('account');
return $context->contract->account?->balance_amount;
}
protected function compare(mixed $actual, string $operator, mixed $expected): bool
{
if ($actual === null) {
return false;
}
if (in_array($operator, ['>', '>=', '<', '<='], true)) {
$actual = (float) $actual;
$expected = (float) $expected;
}
return match ($operator) {
'=' => $actual == $expected,
'!=' => $actual != $expected,
'>' => $actual > $expected,
'>=' => $actual >= $expected,
'<' => $actual < $expected,
'<=' => $actual <= $expected,
'contains' => str_contains((string) $actual, (string) $expected),
default => false,
};
}
/**
* Returns available condition field definitions for the frontend.
*
* @return array<int, array{key: string, label: string, type: string}>
*/
public static function availableFields(): array
{
return [
['key' => 'activity.amount', 'label' => 'Aktivnost znesek', 'type' => 'numeric'],
['key' => 'activity.note', 'label' => 'Aktivnost opomba', 'type' => 'string'],
['key' => 'contract.active', 'label' => 'Pogodba aktivna', 'type' => 'boolean'],
['key' => 'contract.account.balance_amount', 'label' => 'Račun stanje', 'type' => 'numeric'],
];
}
/**
* Returns available operators grouped by field type.
*
* @return array<string, array<int, array{key: string, label: string}>>
*/
public static function availableOperators(): array
{
return [
'numeric' => [
['key' => '=', 'label' => 'je enako'],
['key' => '!=', 'label' => 'ni enako'],
['key' => '>', 'label' => 'je večje od'],
['key' => '>=', 'label' => 'je večje ali enako'],
['key' => '<', 'label' => 'je manjše od'],
['key' => '<=', 'label' => 'je manjše ali enako'],
],
'string' => [
['key' => '=', 'label' => 'je enako'],
['key' => '!=', 'label' => 'ni enako'],
['key' => 'contains', 'label' => 'vsebuje'],
],
'boolean' => [
['key' => '=', 'label' => 'je'],
['key' => '!=', 'label' => 'ni'],
],
];
}
}