<?php

use Symfony\Component\Config\Builder\JsonSchemaGenerator;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Extension\ConfigurationExtensionInterface;
use Symfony\Component\HttpKernel\Bundle\BundleInterface;

require_once __DIR__.'/vendor/autoload.php';
$bundles = require __DIR__.'/config/bundles.php';

$jsonschemaGenerator = new JsonSchemaGenerator();
$container = new ContainerBuilder();
// The debug parameter can vary based on the environment
$container->setParameter('kernel.debug', true);

$schema = (object) [
    '$schema' => 'http://json-schema.org/draft-07/schema#',
    'type' => 'object',
    'additionalProperties' => false,
    'properties' => new \stdClass(),
    '$defs' => new \stdClass(),
];

$allEnvs = ['dev', 'prod', 'test'];
foreach ($allEnvs as $env) {
    $schema->properties->{'when@' . $env} = (object)[
        'type' => 'object',
        'properties' => new \stdClass(),
        'additionalProperties' => false,
    ];
}

foreach ($bundles as $class => $envs) {
    $bundle = new $class();
    assert($bundle instanceof BundleInterface);
    $extension = $bundle->getContainerExtension();
    if ($extension instanceof ConfigurationExtensionInterface) {
        $configuration = $extension->getConfiguration([], $container);
        if ($configuration) {
            $node = $configuration->getConfigTreeBuilder()->buildTree();

            $name = $node->getName();
            $ref = (object) ['$ref' => '#/$defs/'.$name];
            $schema->{'$defs'}->{$name} = $jsonschemaGenerator->generate($node);

            if ($envs === ['all' => true]) {
                $schema->properties->{$name} = $ref;
                $envs = $allEnvs;
            } else {
                $envs = array_keys(array_filter($envs));
            }

            foreach ($envs as $env) {
                $schema->properties->{'when@'.$env}->properties->{$name} = $ref;
            }
        }
    }
}

file_put_contents(__DIR__.'/config/schema.json', json_encode($schema, JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES|JSON_THROW_ON_ERROR));