<?php

declare(strict_types=1);

/**
 * Constructors module.
 *
 * This file is part of MadelineProto.
 * MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
 * MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Affero General Public License for more details.
 * You should have received a copy of the GNU General Public License along with MadelineProto.
 * If not, see <http://www.gnu.org/licenses/>.
 *
 * @author    Daniil Gentili <daniil@daniil.it>
 * @copyright 2016-2023 Daniil Gentili <daniil@daniil.it>
 * @license   https://opensource.org/licenses/AGPL-3.0 AGPLv3
 * @link https://docs.madelineproto.xyz MadelineProto documentation
 */

namespace danog\MadelineProto\DocsBuilder;

use danog\MadelineProto\Lang;
use danog\MadelineProto\Logger;
use danog\MadelineProto\Tools;

use const PHP_EOL;

/**
 * @internal This garbage code needs to be thrown away completely and rewritten from scratch.
 */
trait Constructors
{
    private array $docs_constructors;
    public function mkConstructors(): void
    {
        foreach (glob('constructors/'.$this->any) as $unlink) {
            unlink($unlink);
        }
        if (file_exists('constructors')) {
            rmdir('constructors');
        }
        mkdir('constructors');
        $this->docs_constructors = [];
        $this->logger->logger('Generating constructors documentation...', Logger::NOTICE);
        $got = [];
        foreach ($this->TL->getConstructors()->by_predicate_and_layer as $predicate => $id) {
            $data = $this->TL->getConstructors()->by_id[$id];
            if (isset($got[$id])) {
                $data['layer'] = '';
            }
            $got[$id] = '';
            $layer = isset($data['layer']) && $data['layer'] !== '' ? '_'.$data['layer'] : '';
            $type = $data['type'];
            $constructor = $data['predicate'];
            $php_type = Tools::typeEscape($type);
            $php_constructor = Tools::typeEscape($constructor);
            if (!isset($this->types[$php_type])) {
                $this->types[$php_type] = ['constructors' => [], 'methods' => []];
            }
            if (!\in_array($data, $this->types[$php_type]['constructors'], true)) {
                $this->types[$php_type]['constructors'][] = $data;
            }
            $params = '';
            foreach ($data['params'] as $param) {
                if ($param['type'] === 'strlong') {
                    $param['type'] = 'long';
                }
                if (\in_array($param['name'], ['flags', 'flags2', 'random_id', 'random_bytes'], true)) {
                    continue;
                }
                if ($param['name'] === 'peer' && $param['type'] === 'Peer') {
                    $param['type'] = 'long';
                }
                if ($type === 'EncryptedMessage' && $param['name'] === 'bytes' && !isset($this->settings['td'])) {
                    $param['name'] = 'decrypted_message';
                    $param['type'] = 'DecryptedMessage';
                }
                $type_or_subtype = isset($param['subtype']) ? 'subtype' : 'type';
                $type_or_bare_type = ctype_upper(Tools::end(explode('.', $param[$type_or_subtype]))[0]) || \in_array($param[$type_or_subtype], ['!X', 'X', 'bytes', 'true', 'false', 'double', 'string', 'Bool', 'int53', 'int', 'long', 'int128', 'int256', 'int512'], true) ? 'types' : 'constructors';
                $param[$type_or_subtype] = str_replace(['true', 'false'], ['Bool', 'Bool'], $param[$type_or_subtype]);
                if (preg_match('/%/', $param[$type_or_subtype])) {
                    $param[$type_or_subtype] = $this->TL->getConstructors()->findByType(str_replace('%', '', $param[$type_or_subtype]))['predicate'];
                }
                if (substr($param[$type_or_subtype], -1) === '>') {
                    $param[$type_or_subtype] = substr($param[$type_or_subtype], 0, -1);
                }
                $params .= "'".$param['name']."' => ";
                $param[$type_or_subtype] = '['.self::markdownEscape($param[$type_or_subtype]).'](/API_docs/'.$type_or_bare_type.'/'.$param[$type_or_subtype].'.md)';
                $params .= (isset($param['subtype']) ? '\\['.$param[$type_or_subtype].'\\]' : $param[$type_or_subtype]).', ';
            }
            $md_constructor = self::markdownEscape($constructor.$layer);
            $this->docs_constructors[$constructor] = '[$'.$md_constructor.'](/API_docs/constructors/'.$php_constructor.$layer.'.md) = \\['.$params.'\\];<a name="'.$constructor.$layer.'"></a>  

';
            $table = empty($data['params']) ? '' : '### Attributes:

| Name     |    Type       | Required |
|----------|---------------|----------|
';
            if (!isset($this->TL->getDescriptionsRef()['constructors'][$constructor])) {
                $this->addToLang('object_'.$constructor);
                if (Lang::$lang['en']['object_'.$constructor] !== '') {
                    /** @psalm-suppress InvalidArrayAssignment */
                    $this->TL->getDescriptionsRef()['constructors'][$constructor]['description'] = Lang::$lang['en']['object_'.$constructor];
                }
            }
            if (isset($this->TL->getDescriptionsRef()['constructors'][$constructor]) && !empty($data['params'])) {
                $table = '### Attributes:

| Name     |    Type       | Required | Description |
|----------|---------------|----------|-------------|
';
            }
            $params = '';
            $lua_params = '';
            $pwr_params = '';
            $hasreplymarkup = false;
            $hasentities = false;
            foreach ($data['params'] as $param) {
                if ($param['type'] === 'strlong') {
                    $param['type'] = 'long';
                }
                if (\in_array($param['name'], ['flags', 'flags2', 'random_id', 'random_bytes'], true)) {
                    continue;
                }
                if ($type === 'EncryptedMessage' && $param['name'] === 'bytes' && !isset($this->settings['td'])) {
                    $param['name'] = 'decrypted_message';
                    $param['type'] = 'DecryptedMessage';
                }
                if ($param['name'] === 'peer' && $param['type'] === 'Peer') {
                    $param['type'] = 'long';
                }
                if ($type === 'DecryptedMessageMedia' && \in_array($param['name'], ['key', 'iv'], true)) {
                    unset(Lang::$lang['en']['object_'.$constructor.'_param_'.$param['name'].'_type_'.$param['type']]);
                    continue;
                }
                $ptype = $param[isset($param['subtype']) ? 'subtype' : 'type'];
                if (preg_match('/%/', $ptype)) {
                    $ptype = $this->TL->getConstructors()->findByType(str_replace('%', '', $ptype))['predicate'];
                }
                $type_or_bare_type = (ctype_upper(Tools::end(explode('_', $ptype))[0]) || \in_array($ptype, ['!X', 'X', 'bytes', 'true', 'false', 'double', 'string', 'Bool', 'int53', 'int', 'long', 'int128', 'int256', 'int512'], true)) && $ptype !== 'MTmessage' ? 'types' : 'constructors';
                if (substr($ptype, -1) === '>') {
                    $ptype = substr($ptype, 0, -1);
                }
                switch ($ptype) {
                    case 'true':
                    case 'false':
                        $ptype = 'Bool';
                }
                $human_ptype = $ptype;
                if (str_starts_with($type, 'Input')   && \in_array($ptype, ['User', 'InputUser', 'Chat', 'InputChannel', 'Peer', 'InputPeer'], true) && !isset($this->settings['td'])) {
                    $human_ptype = 'Username, chat ID, Update, Message or '.$ptype;
                }
                if (str_starts_with($type, 'Input')   && \in_array($ptype, ['InputMedia', 'InputDocument', 'InputPhoto'], true) && !isset($this->settings['td'])) {
                    $human_ptype = 'MessageMedia, Message, Update or '.$ptype;
                }
                if (\in_array($ptype, ['InputMessage'], true) && !isset($this->settings['td'])) {
                    $human_ptype = 'Message ID or '.$ptype;
                }
                if (\in_array($ptype, ['InputEncryptedChat'], true) && !isset($this->settings['td'])) {
                    $human_ptype = 'Secret chat ID, Update, EncryptedMessage or '.$ptype;
                }
                if (\in_array($ptype, ['InputFile'], true) && !isset($this->settings['td'])) {
                    $human_ptype = 'File path or '.$ptype;
                }
                if (\in_array($ptype, ['InputEncryptedFile'], true) && !isset($this->settings['td'])) {
                    $human_ptype = 'File path or '.$ptype;
                }
                $table .= '|'.self::markdownEscape($param['name']).'|'.(isset($param['subtype']) ? 'Array of ' : '').'['.self::markdownEscape($human_ptype).'](/API_docs/'.$type_or_bare_type.'/'.$ptype.'.md) | '.(isset($param['pow']) || $this->TL->getConstructors()->findByPredicate(lcfirst($param['type']).'Empty') || $data['type'] === 'InputMedia' && $param['name'] === 'mime_type' || $data['type'] === 'DocumentAttribute' && \in_array($param['name'], ['w', 'h', 'duration'], true) ? 'Optional' : 'Yes').'|';
                if (!isset($this->TL->getDescriptionsRef()['constructors'][$constructor]['params'][$param['name']])) {
                    $this->addToLang('object_'.$constructor.'_param_'.$param['name'].'_type_'.$param['type']);
                    if (isset($this->TL->getDescriptionsRef()['constructors'][$constructor]['description'])) {
                        /** @psalm-suppress InvalidArrayAssignment */
                        $this->TL->getDescriptionsRef()['constructors'][$constructor]['params'][$param['name']] = Lang::$lang['en']['object_'.$constructor.'_param_'.$param['name'].'_type_'.$param['type']];
                    }
                }
                if (isset($this->TL->getDescriptionsRef()['constructors'][$constructor]['params'][$param['name']]) && $this->TL->getDescriptionsRef()['constructors'][$constructor]['params'][$param['name']]) {
                    $table .= $this->TL->getDescriptionsRef()['constructors'][$constructor]['params'][$param['name']].'|';
                }
                $table .= PHP_EOL;
                $pptype = \in_array($ptype, ['string', 'bytes'], true) ? "'".$ptype."'" : $ptype;
                $ppptype = \in_array($ptype, ['string'], true) ? '"'.$ptype.'"' : $ptype;
                $ppptype = \in_array($ptype, ['bytes'], true) ? '{"_": "bytes", "bytes":"base64 encoded '.$ptype.'"}' : $ppptype;
                $params .= ", '".$param['name']."' => ";
                $params .= isset($param['subtype']) ? '['.$pptype.', '.$pptype.']' : $pptype;
                $lua_params .= ', '.$param['name'].'=';
                $lua_params .= isset($param['subtype']) ? '{'.$pptype.'}' : $pptype;
                $pwr_params .= ', "'.$param['name'].'": '.(isset($param['subtype']) ? '['.$ppptype.']' : $ppptype);
                if ($param['name'] === 'reply_markup') {
                    $hasreplymarkup = true;
                }
                if ($param['name'] === 'entities') {
                    $hasentities = true;
                    $table .= '|parse\\_mode| [string](/API_docs/types/string.md) | Whether to parse HTML or Markdown markup in the message| Optional |
';
                    $params .= "parse_mode: 'string', ";
                    $lua_params .= "parseMode='string', ";
                    $pwr_params = "parseMode - string\n";
                }
            }
            $params = "['_' => '".$constructor."'".$params.']';
            $lua_params = "{_='".$constructor."'".$lua_params.'}';
            $pwr_params = '{"_": "'.$constructor.'"'.$pwr_params.'}';
            $description = isset($this->TL->getDescriptionsRef()['constructors'][$constructor]) ? $this->TL->getDescriptionsRef()['constructors'][$constructor]['description'] : $constructor.' attributes, type and example';
            $symFile = str_replace('.', '_', $constructor.$layer);
            $redir = $symFile !== $constructor.$layer ? "\nredirect_from: /API_docs/constructors/{$symFile}.html" : '';
            $description = str_replace('"', "'", Tools::toString(rtrim(explode("\n", $description)[0], ':')));
            $header = '---
title: "'.$constructor.'"
description: "'.$description.'"
nav_exclude: true
image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png'.$redir.'
---
# Constructor: '.self::markdownEscape($constructor.$layer).'  
[Back to constructors index](/API_docs/constructors/index.md)


';
            $table .= '


';
            if (isset($this->TL->getDescriptionsRef()['constructors'][$constructor])) {
                $header .= $this->TL->getDescriptionsRef()['constructors'][$constructor]['description'].PHP_EOL.PHP_EOL;
            }
            $type = '### Type: ['.self::markdownEscape($php_type).'](/API_docs/types/'.$php_type.'.md)


';
            $example = '';
            if (!isset($this->settings['td'])) {
                if ($hasreplymarkup) {
                    $example = $this->template('reply_markup');
                }
                if ($hasentities) {
                    $example = $this->template('parse_mode');
                }
                $example .= $this->template('constructor-example', str_replace('.', '_', $constructor.$layer), $params, $lua_params);
            }
            file_put_contents('constructors/'.$constructor.$layer.'.md', $header.$table.$type.$example);
        }
        $this->logger->logger('Generating constructors index...', Logger::NOTICE);
        ksort($this->docs_constructors);
        $last_namespace = '';
        foreach ($this->docs_constructors as $constructor => &$value) {
            $new_namespace = preg_replace('/_.*/', '', $constructor);
            $br = $new_namespace != $last_namespace ? "***\n<br><br>" : '';
            $value = $br.$value;
            $last_namespace = $new_namespace;
        }
        file_put_contents('constructors/'.$this->index, $this->template('constructors-index', implode('', $this->docs_constructors)));
    }
}