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<?php

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

use PhpParser\Node;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\Assign;
use PhpParser\Node\Expr\MethodCall;
use PhpParser\Node\Expr\PropertyFetch;
use PhpParser\Node\Expr\StaticCall;
use PhpParser\Node\Expr\StaticPropertyFetch;
use PhpParser\Node\Expr\Variable;
use PhpParser\Node\Name;
use PhpParser\Node\Stmt\ClassLike;
use PhpParser\Node\Stmt\ClassMethod;
use PhpParser\Node\Stmt\Expression;
use PhpParser\Node\Stmt\Property;
use PhpParser\Node\Stmt\Trait_;
use PHPStan\Reflection\ClassReflection;
use PHPStan\Type\ObjectType;
use PHPStan\Type\ThisType;
use Rector\Core\Enum\ObjectReference;
use Rector\Core\PhpParser\AstResolver;
use Rector\Core\PhpParser\Node\BetterNodeFinder;
use Rector\Core\Reflection\ReflectionResolver;
use Rector\Core\ValueObject\MethodName;
use Rector\NodeNameResolver\NodeNameResolver;
use Rector\NodeTypeResolver\NodeTypeResolver;
final class PropertyFetchAnalyzer
{
    /**
     * @readonly
     * @var \Rector\NodeNameResolver\NodeNameResolver
     */
    private $nodeNameResolver;
    /**
     * @readonly
     * @var \Rector\Core\PhpParser\Node\BetterNodeFinder
     */
    private $betterNodeFinder;
    /**
     * @readonly
     * @var \Rector\Core\PhpParser\AstResolver
     */
    private $astResolver;
    /**
     * @readonly
     * @var \Rector\NodeTypeResolver\NodeTypeResolver
     */
    private $nodeTypeResolver;
    /**
     * @readonly
     * @var \Rector\Core\Reflection\ReflectionResolver
     */
    private $reflectionResolver;
    /**
     * @var string
     */
    private const THIS = 'this';
    public function __construct(NodeNameResolver $nodeNameResolver, BetterNodeFinder $betterNodeFinder, AstResolver $astResolver, NodeTypeResolver $nodeTypeResolver, ReflectionResolver $reflectionResolver)
    {
        $this->nodeNameResolver = $nodeNameResolver;
        $this->betterNodeFinder = $betterNodeFinder;
        $this->astResolver = $astResolver;
        $this->nodeTypeResolver = $nodeTypeResolver;
        $this->reflectionResolver = $reflectionResolver;
    }
    public function isLocalPropertyFetch(Node $node) : bool
    {
        if (!$node instanceof PropertyFetch && !$node instanceof StaticPropertyFetch) {
            return \false;
        }
        $variableType = $node instanceof PropertyFetch ? $this->nodeTypeResolver->getType($node->var) : $this->nodeTypeResolver->getType($node->class);
        if ($variableType instanceof ObjectType) {
            $classReflection = $this->reflectionResolver->resolveClassReflection($node);
            if ($classReflection instanceof ClassReflection) {
                return $classReflection->getName() === $variableType->getClassName();
            }
            return \false;
        }
        if (!$variableType instanceof ThisType) {
            return $this->isTraitLocalPropertyFetch($node);
        }
        return \true;
    }
    public function isLocalPropertyFetchName(Node $node, string $desiredPropertyName) : bool
    {
        if (!$node instanceof PropertyFetch && !$node instanceof StaticPropertyFetch) {
            return \false;
        }
        if (!$this->nodeNameResolver->isName($node->name, $desiredPropertyName)) {
            return \false;
        }
        return $this->isLocalPropertyFetch($node);
    }
    public function containsLocalPropertyFetchName(Trait_ $trait, string $propertyName) : bool
    {
        if ($trait->getProperty($propertyName) instanceof Property) {
            return \true;
        }
        return (bool) $this->betterNodeFinder->findFirst($trait, function (Node $node) use($propertyName) : bool {
            return $this->isLocalPropertyFetchName($node, $propertyName);
        });
    }
    public function isPropertyFetch(Node $node) : bool
    {
        if ($node instanceof PropertyFetch) {
            return \true;
        }
        return $node instanceof StaticPropertyFetch;
    }
    /**
     * Matches:
     * "$this->someValue = $<variableName>;"
     */
    public function isVariableAssignToThisPropertyFetch(Assign $assign, string $variableName) : bool
    {
        if (!$assign->expr instanceof Variable) {
            return \false;
        }
        if (!$this->nodeNameResolver->isName($assign->expr, $variableName)) {
            return \false;
        }
        return $this->isLocalPropertyFetch($assign->var);
    }
    public function isFilledViaMethodCallInConstructStmts(ClassLike $classLike, string $propertyName) : bool
    {
        $classMethod = $classLike->getMethod(MethodName::CONSTRUCT);
        if (!$classMethod instanceof ClassMethod) {
            return \false;
        }
        $className = (string) $this->nodeNameResolver->getName($classLike);
        $stmts = (array) $classMethod->stmts;
        foreach ($stmts as $stmt) {
            if (!$stmt instanceof Expression) {
                continue;
            }
            if (!$stmt->expr instanceof MethodCall && !$stmt->expr instanceof StaticCall) {
                continue;
            }
            $callerClassMethod = $this->astResolver->resolveClassMethodFromCall($stmt->expr);
            if (!$callerClassMethod instanceof ClassMethod) {
                continue;
            }
            $callerClassReflection = $this->reflectionResolver->resolveClassReflection($callerClassMethod);
            if (!$callerClassReflection instanceof ClassReflection) {
                continue;
            }
            if (!$callerClassReflection->isClass()) {
                continue;
            }
            $callerClassName = $callerClassReflection->getName();
            $isFound = $this->isPropertyAssignFoundInClassMethod($classLike, $className, $callerClassName, $callerClassMethod, $propertyName);
            if ($isFound) {
                return \true;
            }
        }
        return \false;
    }
    /**
     * @param string[] $propertyNames
     */
    public function isLocalPropertyOfNames(Expr $expr, array $propertyNames) : bool
    {
        if (!$this->isLocalPropertyFetch($expr)) {
            return \false;
        }
        /** @var PropertyFetch $expr */
        return $this->nodeNameResolver->isNames($expr->name, $propertyNames);
    }
    private function isTraitLocalPropertyFetch(Node $node) : bool
    {
        if ($node instanceof PropertyFetch) {
            if (!$node->var instanceof Variable) {
                return \false;
            }
            return $this->nodeNameResolver->isName($node->var, self::THIS);
        }
        if ($node instanceof StaticPropertyFetch) {
            if (!$node->class instanceof Name) {
                return \false;
            }
            return $this->nodeNameResolver->isNames($node->class, [ObjectReference::SELF, ObjectReference::STATIC]);
        }
        return \false;
    }
    private function isPropertyAssignFoundInClassMethod(ClassLike $classLike, string $className, string $callerClassName, ClassMethod $classMethod, string $propertyName) : bool
    {
        if ($className !== $callerClassName && !$classLike instanceof Trait_) {
            $objectType = new ObjectType($className);
            $callerObjectType = new ObjectType($callerClassName);
            if (!$callerObjectType->isSuperTypeOf($objectType)->yes()) {
                return \false;
            }
        }
        foreach ((array) $classMethod->stmts as $stmt) {
            if (!$stmt instanceof Expression) {
                continue;
            }
            if (!$stmt->expr instanceof Assign) {
                continue;
            }
            if ($this->isLocalPropertyFetchName($stmt->expr->var, $propertyName)) {
                return \true;
            }
        }
        return \false;
    }
}