/* ========================== Admin Page Wrapper ========================== */
function rj360_admin_wrapper(){
  $nonce = wp_create_nonce('rj360');
  $opt   = get_option(RJ360_OPT, rj360_defaults());
  $cats  = get_terms(['taxonomy' => 'category', 'hide_empty' => false, 'number' => 200]);
  rj360_output_ui($nonce, $opt, $cats); // Llama al UI puro con datos pre-fetchados
}

/* ========================== Enqueue CSS solo en nuestra pantalla ========================== */
add_action('admin_enqueue_scripts', function($hook){
  if ($hook !== 'toplevel_page_rj360-admin') return;
  if (!wp_style_is('rj360-admin-style','registered')){
    wp_register_style('rj360-admin-style', false, [], RJ360_VER);
  }
  wp_enqueue_style('rj360-admin-style');
  $inline = '/* ===== Admin CSS (inline) ===== */
:root{
  --gap:12px; --radius:12px; --border:#e3e6ea; --bg:#f6f7f9; --card:#fff;
  --primary:#0366d6; --primary-ink:#fff; --muted:#6b7280; --ok:#16a34a; --warn:#b45309; --danger:#dc2626;
}
#rj360{max-width:1400px}
#rj360 h1{margin-bottom:14px}
#rj360 .rj-grid{
  display:grid;
  grid-template-columns: 1.1fr 1.8fr 1.1fr;
  gap: var(--gap);
  align-items:start;
}
#rj360 .card{background:var(--card); border:1px solid var(--border); border-radius:var(--radius); overflow:hidden}
#rj360 .card .inner{padding:14px 14px 18px}
#rj360 .row{display:flex; gap:10px; align-items:center; margin-bottom:10px}
#rj360 .row.cols-2>*, #rj360 .row.cols-3>*{flex:1}
#rj360 .row.cols-3>*{min-width:0}
#rj360 input[type="text"], #rj360 input[type="number"], #rj360 input[type="datetime-local"], #rj360 textarea, #rj360 select{
  width:100%; padding:10px 12px; border:1px solid var(--border); border-radius:10px; background:#fff; outline:none
}
#rj360 textarea{font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace}
#rj360 .button{padding:8px 12px; border:1px solid var(--border); background:#fff; border-radius:10px; cursor:pointer}
#rj360 .button:hover{background:#f3f4f6}
#rj360 .button.button-primary{border-color:var(--primary); background:var(--primary); color:var(--primary-ink)}
#rj360 .chips{display:flex; flex-wrap:wrap; gap:8px}
#rj360 .chip{display:inline-flex; align-items:center; gap:6px; padding:6px 10px; border:1px solid var(--border); border-radius:20px; background:#fff}
#rj360 .panel{display:none}
#rj360 .panel.active{display:block}
#rj360 .list{display:flex; flex-direction:column; gap:8px; max-height:520px; overflow:auto; border:1px dashed #e5e7eb; padding:8px; border-radius:10px}
#rj360 .item a{text-decoration:none}
#rj360 .preview{margin-top:12px; border:1px solid var(--border); border-radius:12px; overflow:hidden}
#rj360 .preview #preview-frame{width:100%; height:540px; border:0}
#rj360 .days{display:flex; gap:8px; flex-wrap:wrap}
#rj360 .days-row{align-items:flex-start}
@media (max-width:1280px){
  #rj360 .rj-grid{ grid-template-columns: 1fr }
  #rj360 .preview #preview-frame{height:480px}
}
@media (min-width:1281px) and (max-width:1600px){
  #rj360 .rj-grid{ grid-template-columns: 1fr 1.4fr 1fr }
}';
  if (function_exists('wp_add_inline_style')) wp_add_inline_style('rj360-admin-style', $inline);
  wp_enqueue_style('theme-style', get_stylesheet_uri(), [], null, 'all');
});

/* ========================== Defaults & Setup ========================== */
function rj360_defaults(){ return [
  'feeds'=>[
    ['url'=>'https://prensa.jujuy.gob.ar/feed/','active'=>true],
    ['url'=>'https://www.argentina.gob.ar/noticias/todas-las-noticias/rss.xml','active'=>true],
  ],
  'days'=>['mon','tue','wed','thu','fri','sat','sun'],
  'safe_image_domains'=>".gob.ar\nargentina.gob.ar\njujuy.gob.ar\nwikipedia.org\nwikimedia.org\nprensa.jujuy.gob.ar"
];}
function rj360_norm_feeds($fs){
  $o=[]; foreach((array)$fs as $f){
    if(is_array($f)&&isset($f['url'])) $o[]=['url'=>trim($f['url']),'active'=>!empty($f['active'])];
    elseif(is_string($f)&&$f) $o[]=['url'=>trim($f),'active'=>true];
  } return $o;
}
add_action('admin_init',function(){
  $opt=get_option(RJ360_OPT);
  if(!$opt) $opt=rj360_defaults();
  $opt=array_merge(rj360_defaults(),$opt);
  $opt['feeds']=rj360_norm_feeds($opt['feeds']);
  update_option(RJ360_OPT,$opt);
});

/* ========================== Admin Menu ========================== */
add_action('admin_menu',function(){
  add_menu_page('Reportero 360','Reportero 360','edit_posts','rj360-admin','rj360_admin_wrapper','dashicons-media-document',3);
});

/* ========================== AJAX ========================== */
add_action('wp_ajax_rj360_api', function(){
  if(!current_user_can('edit_posts')) wp_send_json_error('forbidden');
  check_ajax_referer('rj360');
  $sub = sanitize_key($_POST['sub']??'');
  $payload = json_decode(stripslashes($_POST['payload']??'{}'), true) ?: [];
  try{
    switch($sub){
      case 'fetch_rss':     $out = rj360_ajax_fetch_rss($payload); break;
      case 'fetch_url':     $out = rj360_ajax_fetch_url($payload); break;
      case 'search_posts':  $out = rj360_ajax_search_posts($payload); break;
      case 'read_post':     $out = rj360_ajax_read_post($payload); break;
      case 'clean_html':    $out = ['html'=>rj360_clean_html($payload['html']??'')]; break;
      case 'publish':       $out = ['id'=>rj360_publish($payload)]; break;
      case 'save_opt':      update_option(RJ360_OPT, rj360_merge_options($payload['opt']??[])); $out=['ok'=>true]; break;
      default: throw new Exception('acción no soportada');
    }
    wp_send_json_success($out);
  }catch(Throwable $e){
    wp_send_json_error($e->getMessage());
  }
});

/* ========================== Helpers ========================== */
function rj360_merge_options($in){
  $base = get_option(RJ360_OPT, rj360_defaults());
  $in['feeds'] = rj360_norm_feeds($in['feeds']??[]);
  $out = array_merge($base, $in);
  return $out;
}

function rj360_host_allows($url){
  $opt = get_option(RJ360_OPT, rj360_defaults());
  $list = array_filter(array_map('trim', explode("\n", (string)($opt['safe_image_domains']??''))));
  if(!$list) return true;
  $host = parse_url($url, PHP_URL_HOST);
  if(!$host) return false;
  foreach($list as $rule){
    $rule = ltrim($rule);
    if($rule && (str_ends_with($host,$rule) || $host===$rule || (strpos($rule,'.')===0 && str_ends_with($host,$rule)))){
      return true;
    }
  }
  return false;
}

function rj360_clean_html($html){
  $allowed = [
    'a'=>['href'=>true,'title'=>true,'target'=>true,'rel'=>true],
    'p'=>['class'=>true],'br'=>[], 'strong'=>[], 'em'=>[], 'b'=>[], 'i'=>[],
    'ul'=>[],'ol'=>[],'li'=>[], 'h1'=>[],'h2'=>[],'h3'=>[],'h4'=>[],'h5'=>[],'h6'=>[],
    'img'=>['src'=>true,'alt'=>true,'title'=>true,'width'=>true,'height'=>true,'loading'=>true],
    'figure'=>[],'figcaption'=>[], 'blockquote'=>['cite'=>true], 'code'=>[], 'pre'=>[]
  ];
  $html = wp_kses((string)$html, $allowed);
  // Quitar atributos peligrosos
  $html = preg_replace('/\son\w+="[^"]*"/i','',$html);
  // Remover iframes/embeds
  $html = preg_replace('#<(iframe|embed|script)[\s\S]*?</\1>#i','',$html);
  return $html;
}

/* ========================== RSS ========================== */
function rj360_ajax_fetch_rss($p){
  $url = esc_url_raw($p['url']??'');
  $limit = max(1, min( (int)($p['limit']??12), 50 ));
  if(!$url) throw new Exception('feed vacío');
  require_once ABSPATH.'wp-includes/feed.php';
  $rss = fetch_feed($url);
  if(is_wp_error($rss)) throw new Exception('RSS inválido');
  $max = $rss->get_item_quantity($limit);
  $items = [];
  for($i=0; $i<$max; $i++){
    $it = $rss->get_item($i);
    $items[] = [
      'title' => (string)$it->get_title(),
      'link'  => (string)$it->get_link(),
      'date'  => (string)$it->get_date('c'),
    ];
  }
  return ['items'=>$items];
}

/* ========================== URL Fetch (simple) ========================== */
function rj360_ajax_fetch_url($p){
  $url = esc_url_raw($p['url']??'');
  if(!$url) throw new Exception('URL vacía');
  $res = wp_remote_get($url, ['timeout'=>12,'redirection'=>5,'user-agent'=>'RJ360/3.0']);
  if(is_wp_error($res)) throw new Exception('No se pudo descargar');
  $html = wp_remote_retrieve_body($res);
  if(!$html) throw new Exception('Sin contenido');

  // Title
  $title=''; if(preg_match('~<title>(.*?)</title>~is',$html,$m)) $title=wp_strip_all_tags($m[1]);

  // Main image (og:image)
  $image=''; if(preg_match('~<meta\s+property=["\']og:image["\']\s+content=["\']([^"\']+)~i',$html,$m)) $image=esc_url_raw($m[1]);

  // Content naive (article/body)
  $content=''; 
  if(preg_match('~<article[^>]*>([\s\S]+?)</article>~i',$html,$m)) $content = $m[1];
  if(!$content && preg_match('~<body[^>]*>([\s\S]+?)</body>~i',$html,$m)) $content = $m[1];

  $content = rj360_clean_html($content);
  return ['title'=>$title,'image'=>$image,'content'=>$content];
}

/* ========================== Posts ========================== */
function rj360_ajax_search_posts($p){
  $q = sanitize_text_field($p['q']??'');
  $args = ['post_type'=>'post','posts_per_page'=>20,'s'=>$q,'post_status'=>'any','orderby'=>'date','order'=>'DESC'];
  $posts = get_posts($args);
  return ['items'=>array_map(function($po){
    return ['ID'=>$po->ID,'post_title'=>$po->post_title];
  }, $posts)];
}

function rj360_ajax_read_post($p){
  $id = (int)($p['id']??0);
  if($id<1) throw new Exception('ID inválido');
  $po = get_post($id);
  if(!$po) throw new Exception('No existe');
  $img = get_the_post_thumbnail_url($po,'full') ?: '';
  $tags = wp_get_post_tags($id, ['fields'=>'names']);
  $cats = wp_get_post_categories($id);
  return ['title'=>$po->post_title,'content'=>$po->post_content,'image'=>$img,'tags'=>$tags,'cats'=>$cats];
}

/* ========================== Publicar ========================== */
function rj360_publish($p){
  $title = sanitize_text_field($p['title']??'');
  $subtitle = sanitize_text_field($p['subtitle']??'');
  $content = rj360_clean_html($p['content']??'');
  $image = esc_url_raw($p['image']??'');
  $author = max(1,(int)($p['author']??1));
  $status = in_array(($p['status']??'draft'), ['draft','publish','future','pending'], true) ? $p['status'] : 'draft';
  $slug = sanitize_title($p['slug']??'');
  $excerpt = sanitize_text_field($p['excerpt']??'');
  $date = sanitize_text_field($p['date']??'');
  $cats = array_filter(array_map('intval', (array)($p['cats']??[])));
  $tags = array_filter(array_map('trim', explode(',', (string)($p['tags']??''))));

  $postarr = [
    'post_title'   => $title,
    'post_content' => ($subtitle ? '<p><em>'.esc_html($subtitle).'</em></p>' : '').$content,
    'post_status'  => $status,
    'post_author'  => $author,
    'post_type'    => 'post',
  ];
  if($slug)   $postarr['post_name'] = $slug;
  if($excerpt)$postarr['post_excerpt'] = $excerpt;
  if($date)   $postarr['post_date'] = date('Y-m-d H:i:s', strtotime($date));

  $id = wp_insert_post($postarr, true);
  if(is_wp_error($id)) throw new Exception($id->get_error_message());

  if($cats) wp_set_post_categories($id, $cats, false);
  if($tags) wp_set_post_tags($id, $tags, false);

  // Meta JSON
  $meta = (array)($p['meta']??[]);
  foreach($meta as $k=>$v){
    if(is_scalar($v) || is_null($v)) update_post_meta($id, sanitize_key($k), maybe_serialize($v));
  }

  // Imagen
  if($image){
    if(!rj360_host_allows($image)) throw new Exception('Dominio de imagen no permitido');
    require_once ABSPATH.'wp-admin/includes/media.php';
    require_once ABSPATH.'wp-admin/includes/file.php';
    require_once ABSPATH.'wp-admin/includes/image.php';
    $att_id = media_sideload_image($image, $id, $title, 'id');
    if(!is_wp_error($att_id)) set_post_thumbnail($id, $att_id);
  }

  return $id;
}

/* ========================== Media helpers (fallback) ========================== */
if(!function_exists('rj360_media_sideload')){
  function rj360_media_sideload($url,$post=0,$desc=''){
    if(!$url) return 0;
    require_once ABSPATH.'wp-admin/includes/file.php';
    require_once ABSPATH.'wp-admin/includes/media.php';
    require_once ABSPATH.'wp-admin/includes/image.php';
    $tmp=download_url($url); if(is_wp_error($tmp)) return 0;
    $mime=function_exists('mime_content_type')?mime_content_type($tmp):(wp_check_filetype($url)['type']??'image/jpeg');
    $name=basename(parse_url($url,PHP_URL_PATH))?:'media.jpg';
    $file=['name'=>$name,'type'=>$mime,'tmp_name'=>$tmp,'size'=>@filesize($tmp),'error'=>0];
    $id=media_handle_sideload($file,$post,$desc);
    if(is_wp_error($id)){ @unlink($tmp); return 0; }
    @unlink($tmp);
    $path=get_attached_file($id);
    if($path&&file_exists($path)){
      $meta=wp_generate_attachment_metadata($id,$path);
      if($meta) wp_update_attachment_metadata($id,$meta);
    }
    return $id;
  }
}