<?php

namespace Isekai\OIDC;

use ApiQueryBase;
use MediaWiki\MediaWikiServices;
use Wikimedia\ParamValidator\ParamValidator;

class ApiOIDCAvatar extends ApiQueryBase {
    public function __construct( $main, $method ) {
        parent::__construct( $main, $method );
    }

    public function execute() {
        $services = MediaWikiServices::getInstance();
        $config = $services->getMainConfig();
        $wgIsekaiOIDC = $config->get('IsekaiOIDC');
        
        //$this->requireOnlyOneParameter('username', 'userid');

        $userid = $this->getParameter('userid');
        $username = $this->getParameter('username');

        $userFactory = $services->getUserFactory();
        if ($userid) {
            $user = $userFactory->newFromId($userid);
        } else {
            $user = $userFactory->newFromName($username);
        }

        if (!$user) {
            $this->dieWithError('isekaioidc-api-user-not-found', 'isekaioidc-api-user-not-found');
        }

        $size = $this->getParameter('size');

        $avatars = [];

        $hookContainer = $services->getHookContainer();
        $hookContainer->run('Isekai::GetUsersAvatar', [&$avatars, [$user], $size]);

        $avatarUrl = '';
        if (isset($avatars[$user->getId()])) {
            $avatarUrl = $avatars[$user->getId()];
        } else {
            if (isset($wgIsekaiOIDC['defaultAvatarUrl'])) {
                $avatarUrl = $wgIsekaiOIDC['defaultAvatarUrl'];
            } else {
                $this->dieWithError('isekaioidc-api-user-avatar-not-found', 'isekaioidc-api-user-avatar-not-found', [
                    'userid' => $userid,
                    'username' => $username,
                ]);
            }
        }

        if ($this->getParameter('redirect')) {
            header('HTTP/1.1 301 Moved Permanently');
            header('Location: ' . $avatarUrl);
            header('Cache-Control: public, max-age=86400');
            exit();
        } else {
            $this->getResult()->addValue('query', 'oidcavatar', $avatarUrl);
        }
    }

    public function getAllowedParams() {
        return [
            'username' => [
                ParamValidator::PARAM_DEFAULT => null,
                ParamValidator::PARAM_TYPE => 'string',
            ],
            'userid' => [
                ParamValidator::PARAM_DEFAULT => null,
                ParamValidator::PARAM_TYPE => 'integer',
            ],
            'size' => [
                ParamValidator::PARAM_DEFAULT => 128,
                ParamValidator::PARAM_TYPE => 'integer',
            ],
            'redirect' => [
                ParamValidator::PARAM_DEFAULT => false,
                ParamValidator::PARAM_TYPE => 'boolean',
            ]
        ];
    }

    public function getExamplesMessages() {
        return [
            'action=query&prop=oidcavatar&username=Example&size=128' => 'isekaioidc-api-example-isekaioidcavatar',
        ];
    }

    public function getCacheMode($params) {
        return 'public';
    }
}