<?php

/** Move already-authorized club forms out of summary tables into labelled dialogs. */
final class ClubFormModals {
    public static function render(string $html): string {
        $titles=['club'=>'Edit or archive club','member'=>'Add member','invite'=>'Invite members',
            'season'=>'Add season','charge'=>'Record season dues','payment'=>'Record payment',
            'adjust'=>'Correct dues','reverse'=>'Reverse incorrect payment','revokeInvitation'=>'Revoke invitation',
            'note_add'=>'Add note','note_edit'=>'Edit note','note_delete'=>'Delete note'];
        $doc=new DOMDocument('1.0','UTF-8');$previous=libxml_use_internal_errors(true);
        try{$loaded=$doc->loadHTML('<?xml encoding="UTF-8">'.$html,LIBXML_NONET);}
        finally{libxml_clear_errors();libxml_use_internal_errors($previous);}
        if(!$loaded)throw new RuntimeException('Cannot render club dialogs.');
        $main=$doc->getElementsByTagName('main')->item(0);
        if(!$main)throw new LogicException('Club summary container is missing.');
        $dialogs=[];$index=0;
        foreach(iterator_to_array($main->getElementsByTagName('form')) as $form){
            $values=[];foreach($form->getElementsByTagName('input') as $input)$values[$input->getAttribute('name')]=$input->getAttribute('value');
            $step=$values['step']??'';
            if(!in_array($values['action']??'',['Roster.workspace','Roster.memberSummary'],true)||!isset($titles[$step]))continue;
            $title=$step==='member'&&!empty($values['membership_serial'])?'Edit membership':$titles[$step];
            $id='club-action-'.(++$index);$parent=$form->parentNode;
            $trigger=$doc->createElement('button');$trigger->appendChild($doc->createTextNode($title));
            foreach(['type'=>'button','class'=>'btn '.($step==='note_delete'?'btn-outline-danger':'btn-outline-primary').' me-2 mb-2','data-bs-toggle'=>'modal','data-bs-target'=>'#'.$id,'data-club-step'=>$step] as $key=>$value)$trigger->setAttribute($key,$value);
            $dialog=$doc->createElement('div');
            foreach(['class'=>'modal fade club-action-modal','id'=>$id,'tabindex'=>'-1','aria-labelledby'=>$id.'-title','aria-hidden'=>'true'] as $key=>$value)$dialog->setAttribute($key,$value);
            $layout=$dialog->appendChild($doc->createElement('div'));$layout->setAttribute('class','modal-dialog modal-lg modal-dialog-centered modal-dialog-scrollable');
            $content=$layout->appendChild($doc->createElement('div'));$content->setAttribute('class','modal-content');
            $header=$content->appendChild($doc->createElement('div'));$header->setAttribute('class','modal-header');
            $heading=$header->appendChild($doc->createElement('h2'));$heading->setAttribute('class','modal-title fs-5');$heading->setAttribute('id',$id.'-title');$heading->appendChild($doc->createTextNode($title));
            $close=$header->appendChild($doc->createElement('button'));$close->setAttribute('type','button');$close->setAttribute('class','btn-close');$close->setAttribute('data-bs-dismiss','modal');$close->setAttribute('aria-label','Close');
            $body=$content->appendChild($doc->createElement('div'));$body->setAttribute('class','modal-body');
            // Keep the selected row visible in the dialog so financial/member actions are unambiguous.
            $row=$parent;while($row&&$row!==$main&&!in_array($row->nodeName,['tr','li'],true))$row=$row->parentNode;
            if($row&&$row!==$main&&!in_array($step,['note_edit','note_delete'],true)){
                $text=$row->textContent;
                if($row->nodeName==='tr')$text=implode(' · ',array_map(static fn($cell)=>trim($cell->textContent),array_slice(iterator_to_array($row->getElementsByTagName('td')),0,-1)));
                $context=$body->appendChild($doc->createElement('p'));$context->setAttribute('class','text-secondary');$context->appendChild($doc->createTextNode(trim(preg_replace('/\s+/u',' ',$text))));
            }
            if($parent->nodeName==='details'){
                $parent->parentNode->replaceChild($trigger,$parent);
                foreach(iterator_to_array($parent->childNodes) as $child)if($child->nodeName!=='summary')$body->appendChild($child);
            }else{
                $previous=$form->previousSibling;
                if($previous&&$previous->nodeName==='h4')$previous->parentNode->removeChild($previous);
                $following=$form->nextSibling;
                $parent->replaceChild($trigger,$form);$body->appendChild($form);
                if($following&&$following->nodeName==='p')$body->appendChild($following);
            }
            $error=$doc->createElement('p');$error->setAttribute('class','alert alert-danger club-modal-error');$error->setAttribute('role','alert');$error->setAttribute('tabindex','-1');$error->setAttribute('hidden','hidden');$body->insertBefore($error,$body->firstChild);
            $footer=$content->appendChild($doc->createElement('div'));$footer->setAttribute('class','modal-footer');
            $cancel=$footer->appendChild($doc->createElement('button'));$cancel->setAttribute('type','button');$cancel->setAttribute('class','btn btn-outline-secondary');$cancel->setAttribute('data-bs-dismiss','modal');$cancel->appendChild($doc->createTextNode('Cancel'));
            $dialogs[]=$dialog;
            if($step==='invite')foreach(iterator_to_array($main->getElementsByTagName('a')) as $link)if($link->getAttribute('href')==='#club-invitations'){$link->parentNode->replaceChild($trigger,$link);break;}
        }
        foreach($dialogs as $dialog)$main->appendChild($dialog);
        $script=$main->appendChild($doc->createElement('script'));$script->setAttribute('src','js/club-modals.js?version='.Base::VERSION);
        return $doc->saveHTML($main);
    }
}