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<?php

declare (strict_types=1);
namespace Rector\Php71\NodeAnalyzer;

use PhpParser\Node\Expr;
use PhpParser\Node\Expr\Array_;
use PhpParser\Node\Expr\PropertyFetch;
use PhpParser\Node\Expr\StaticPropertyFetch;
use PhpParser\Node\Stmt;
use PhpParser\Node\Stmt\ClassLike;
use PHPStan\Analyser\Scope;
use PHPStan\Reflection\ClassReflection;
use PHPStan\Reflection\Php\PhpPropertyReflection;
use PHPStan\Reflection\ReflectionProvider;
use PHPStan\Type\ArrayType;
use PHPStan\Type\Constant\ConstantArrayType;
use PHPStan\Type\Type;
use PHPStan\Type\TypeWithClassName;
use PHPStan\Type\UnionType;
use Rector\Core\NodeAnalyzer\PropertyFetchAnalyzer;
use Rector\Core\PhpParser\AstResolver;
use Rector\Core\Reflection\ReflectionResolver;
use Rector\NodeNameResolver\NodeNameResolver;
use Rector\NodeTypeResolver\NodeTypeResolver;
use Rector\TypeDeclaration\AlreadyAssignDetector\ConstructorAssignDetector;
final class CountableAnalyzer
{
    /**
     * @readonly
     * @var \Rector\NodeTypeResolver\NodeTypeResolver
     */
    private $nodeTypeResolver;
    /**
     * @readonly
     * @var \Rector\NodeNameResolver\NodeNameResolver
     */
    private $nodeNameResolver;
    /**
     * @readonly
     * @var \PHPStan\Reflection\ReflectionProvider
     */
    private $reflectionProvider;
    /**
     * @readonly
     * @var \Rector\Core\NodeAnalyzer\PropertyFetchAnalyzer
     */
    private $propertyFetchAnalyzer;
    /**
     * @readonly
     * @var \Rector\TypeDeclaration\AlreadyAssignDetector\ConstructorAssignDetector
     */
    private $constructorAssignDetector;
    /**
     * @readonly
     * @var \Rector\Core\Reflection\ReflectionResolver
     */
    private $reflectionResolver;
    /**
     * @readonly
     * @var \Rector\Core\PhpParser\AstResolver
     */
    private $astResolver;
    public function __construct(NodeTypeResolver $nodeTypeResolver, NodeNameResolver $nodeNameResolver, ReflectionProvider $reflectionProvider, PropertyFetchAnalyzer $propertyFetchAnalyzer, ConstructorAssignDetector $constructorAssignDetector, ReflectionResolver $reflectionResolver, AstResolver $astResolver)
    {
        $this->nodeTypeResolver = $nodeTypeResolver;
        $this->nodeNameResolver = $nodeNameResolver;
        $this->reflectionProvider = $reflectionProvider;
        $this->propertyFetchAnalyzer = $propertyFetchAnalyzer;
        $this->constructorAssignDetector = $constructorAssignDetector;
        $this->reflectionResolver = $reflectionResolver;
        $this->astResolver = $astResolver;
    }
    public function isCastableArrayType(Expr $expr, ArrayType $arrayType, Scope $scope) : bool
    {
        if (!$this->propertyFetchAnalyzer->isPropertyFetch($expr)) {
            return \false;
        }
        if ($arrayType instanceof ConstantArrayType) {
            return \false;
        }
        /** @var StaticPropertyFetch|PropertyFetch $expr */
        $callerObjectType = $expr instanceof StaticPropertyFetch ? $this->nodeTypeResolver->getType($expr->class) : $this->nodeTypeResolver->getType($expr->var);
        $propertyName = $this->nodeNameResolver->getName($expr->name);
        if (!\is_string($propertyName)) {
            return \false;
        }
        if ($callerObjectType instanceof UnionType) {
            $callerObjectType = $callerObjectType->getTypes()[0];
        }
        if (!$callerObjectType instanceof TypeWithClassName) {
            return \false;
        }
        if ($this->isCallerObjectClassNameStmtOrArray($callerObjectType)) {
            return \false;
        }
        // this must be handled reflection, as PHPStan ReflectionProvider does not provide default values for properties in any way
        $classReflection = $this->reflectionProvider->getClass($callerObjectType->getClassName());
        $nativeReflectionClass = $classReflection->getNativeReflection();
        $propertiesDefaults = $nativeReflectionClass->getDefaultProperties();
        if (!\array_key_exists($propertyName, $propertiesDefaults)) {
            return \false;
        }
        $phpPropertyReflection = $classReflection->getProperty($propertyName, $scope);
        if (!$phpPropertyReflection instanceof PhpPropertyReflection) {
            return \false;
        }
        $nativeType = $phpPropertyReflection->getNativeType();
        if ($this->isIterableOrFilledAtConstruct($nativeType, $expr)) {
            return \false;
        }
        $propertyDefaultValue = $propertiesDefaults[$propertyName];
        return $propertyDefaultValue === null;
    }
    private function isCallerObjectClassNameStmtOrArray(TypeWithClassName $typeWithClassName) : bool
    {
        if (\is_a($typeWithClassName->getClassName(), Stmt::class, \true)) {
            return \true;
        }
        return \is_a($typeWithClassName->getClassName(), Array_::class, \true);
    }
    /**
     * @param \PhpParser\Node\Expr\StaticPropertyFetch|\PhpParser\Node\Expr\PropertyFetch $propertyFetch
     */
    private function isIterableOrFilledAtConstruct(Type $nativeType, $propertyFetch) : bool
    {
        if ($nativeType->isIterable()->yes()) {
            return \true;
        }
        if ($propertyFetch->name instanceof Expr) {
            return \false;
        }
        $classReflection = $this->reflectionResolver->resolveClassReflection($propertyFetch);
        if (!$classReflection instanceof ClassReflection) {
            return \false;
        }
        $classLike = $this->astResolver->resolveClassFromClassReflection($classReflection);
        if (!$classLike instanceof ClassLike) {
            return \false;
        }
        $propertyName = (string) $this->nodeNameResolver->getName($propertyFetch->name);
        return $this->constructorAssignDetector->isPropertyAssigned($classLike, $propertyName);
    }
}