<?php

namespace PSX\Schema\Generator;

use PSX\Schema\Generator\Type\GeneratorInterface;
use PSX\Schema\Type\ArrayType;
use PSX\Schema\Type\IntersectionType;
use PSX\Schema\Type\MapType;
use PSX\Schema\Type\ReferenceType;
use PSX\Schema\Type\StructType;
use PSX\Schema\Type\TypeAbstract;
use PSX\Schema\Type\UnionType;
use PSX\Schema\TypeInterface;
use PSX\Schema\TypeUtil;

/**
 * TypeScript
 *
 * @author  Christoph Kappestein <christoph.kappestein@gmail.com>
 * @license http://www.apache.org/licenses/LICENSE-2.0
 * @link    http://phpsx.org
 */
class TypeScript extends CodeGeneratorAbstract
{
    /**
     * @inheritDoc
     */
    public function getFileName(string $file): string
    {
        return $file . '.ts';
    }

    protected function newTypeGenerator(array $mapping): GeneratorInterface
    {
        return new Type\TypeScript($mapping);
    }

    protected function writeStruct(
        string $name,
        array $properties,
        ?string $extends,
        ?array $generics,
        StructType $origin,
    ): string {
        $code = 'export interface ' . $name;

        if (!empty($generics)) {
            $code.= '<' . implode(', ', $generics) . '>';
        }

        if (!empty($extends)) {
            $code.= ' extends ' . $extends;
        }

        $code.= ' {' . "\n";

        foreach ($properties as $name => $property) {
            /** @var Code\Property $property */
            $code.= $this->indent . $name . ($property->isRequired() ? '' : '?') . ': ' . $property->getType() . "\n";
        }

        $code.= '}' . "\n";

        return $code;
    }

    protected function writeMap(string $name, string $type, MapType $origin): string
    {
        return 'export type ' . $name . ' = ' . $type . ';' . "\n";
    }

    protected function writeArray(string $name, string $type, ArrayType $origin): string
    {
        return 'export type ' . $name . ' = ' . $type . ';' . "\n";
    }

    protected function writeUnion(string $name, string $type, UnionType $origin): string
    {
        return 'export type ' . $name . ' = ' . $type . ';' . "\n";
    }

    protected function writeIntersection(string $name, string $type, IntersectionType $origin): string
    {
        return 'export type ' . $name . ' = ' . $type . ';' . "\n";
    }

    protected function writeReference(string $name, string $type, ReferenceType $origin): string
    {
        return 'export type ' . $name . ' = ' . $type . ';' . "\n";
    }

    protected function writeHeader(TypeAbstract $origin): string
    {
        $code = '';

        $imports = $this->getImports($origin);
        if (!empty($imports)) {
            $code.= "\n";
            $code.= implode("\n", $imports);
            $code.= "\n";
        }

        $code.= "\n";

        $comment = $origin->getDescription();
        if (!empty($comment)) {
            $code.= '/**' . "\n";
            $code.= ' * ' . $comment . "\n";
            $code.= ' */' . "\n";
        }

        return $code;
    }

    private function getImports(TypeInterface $origin): array
    {
        $refs = [];
        TypeUtil::walk($origin, function(TypeInterface $type) use (&$refs){
            if ($type instanceof ReferenceType) {
                $refs[$type->getRef()] = $type->getRef();
                if ($type->getTemplate()) {
                    foreach ($type->getTemplate() as $ref) {
                        $refs[$ref] = $ref;
                    }
                }
            } elseif ($type instanceof StructType && $type->getExtends()) {
                $refs[$type->getExtends()] = $type->getExtends();
            }
        });

        $imports = [];
        foreach ($refs as $ref) {
            [$ns, $name] = TypeUtil::split($ref);
            $imports[] = 'import {' . $name . '} from "./' . $name . '";';
        }

        return $imports;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MjgxNjQzMDg0NjM3ODUxMiAxMjQzNDA5MjAyMDUxNzA0IDQxODI0NjI5ODg1OTA5MTI=