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1<?php
2namespace Apie\Core\Actions;
3
4use Apie\Core\BoundedContext\BoundedContext;
5use Apie\Core\BoundedContext\BoundedContextHashmap;
6use Apie\Core\Entities\EntityInterface;
7use Iterator;
8use ReflectionClass;
9
10/**
11 * @implements Iterator<int, BoundedContextEntityTuple>
12 */
13class BoundedContextHashmapIterator implements Iterator
14{
15    private int $counter = 0;
16    private ?BoundedContext $currentBoundedContext = null;
17    /**
18     * @var ReflectionClass<EntityInterface>|null
19     */
20    private ?ReflectionClass $currentValue = null;
21    /**
22     * @var array<int, BoundedContext>
23     */
24    private array $boundedContextTodo = [];
25
26    /**
27     * @var array<int, ReflectionClass<EntityInterface>>
28     */
29    private array $entityTodo = [];
30
31    public function __construct(private readonly BoundedContextHashmap $boundedContextHashmap)
32    {
33    }
34    public function current(): ?BoundedContextEntityTuple
35    {
36        return new BoundedContextEntityTuple(
37            $this->currentBoundedContext,
38            $this->currentValue
39        );
40    }
41    public function key(): int
42    {
43        return $this->counter;
44    }
45    public function next(): void
46    {
47        $this->currentValue = null;
48        while (empty($this->entityTodo)) {
49            $boundedContext = array_shift($this->boundedContextTodo);
50            if (!$boundedContext) {
51                return;
52            }
53            $this->currentBoundedContext = $boundedContext;
54            $this->entityTodo = $this->currentBoundedContext->resources->toArray();
55        }
56        $this->counter++;
57        $this->currentValue = array_shift($this->entityTodo);
58    }
59    public function rewind(): void
60    {
61        $this->counter = 0;
62        $this->boundedContextTodo = $this->boundedContextHashmap->toArray();
63        $this->entityTodo = [];
64        $this->next();
65    }
66    public function valid(): bool
67    {
68        return null !== $this->currentValue;
69    }
70}