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/live/system_check.php

<?php
declare(strict_types=1);require __DIR__.'/bootstrap.php';
function check(string $name,bool $ok,string $detail,string $fix=''):array{return compact('name','ok','detail','fix');}
$checks=[];$checks[]=check('PHP version',version_compare(PHP_VERSION,'8.1','>='),PHP_VERSION,'Use PHP 8.1 or newer.');
foreach(['curl','json','simplexml','mbstring','openssl'] as $ext)$checks[]=check('Extension: '.$ext,extension_loaded($ext),extension_loaded($ext)?'loaded':'missing','Enable the '.$ext.' PHP extension in hosting settings.');
foreach([SIMON_CACHE_DIR,SIMON_LOG_DIR,SIMON_DATA_DIR,SIMON_BACKUP_DIR] as $dir)$checks[]=check('Writable: '.basename($dir),is_dir($dir)&&is_writable($dir),$dir,(is_dir($dir)?'Set folder permissions to 775.':'Create folder and set permissions to 775.'));
$required=['bootstrap.php','feeds.json','feed_proxy.php','feed_manager.php','providers/rss.php','providers/geojson.php','providers/weather.php','providers/hn.php','providers/social.php','providers/webhook.php'];foreach($required as $f)$checks[]=check('File: '.$f,is_file(SIMON_ROOT.'/'.$f),is_file(SIMON_ROOT.'/'.$f)?'present':'missing','Upload the missing file from the package.');
$raw=is_file(SIMON_FEEDS_FILE)?file_get_contents(SIMON_FEEDS_FILE):'';$feeds=json_decode((string)$raw,true);$valid=is_array($feeds);$checks[]=check('feeds.json valid',$valid,$valid?count($feeds).' entries':json_last_error_msg(),'Restore a feeds backup or upload a valid feeds.json.');
$ids=[];$dupes=[];$missing=[];if($valid){foreach($feeds as $f){if(!is_array($f))continue;$id=(string)($f['id']??'');if(isset($ids[$id]))$dupes[]=$id;$ids[$id]=1;$e=(string)($f['engine']??'');if($e&&!is_file(SIMON_ROOT.'/providers/'.$e.'.php'))$missing[$e]=1;}}
$checks[]=check('Unique feed IDs',!$dupes,$dupes?'Duplicates: '.implode(', ',$dupes):'No duplicates','Rename duplicate IDs in Feed Manager.');$checks[]=check('Provider coverage',!$missing,$missing?'Missing: '.implode(', ',array_keys($missing)):'All engines have provider files','Upload missing providers or disable those feeds.');
$testKey='system_check_'.bin2hex(random_bytes(3)).'.json';simon_cache_set($testKey,['ok'=>true]);$cacheOk=simon_cache_get($testKey,60)!==null;@unlink(SIMON_CACHE_DIR.'/'.$testKey);$checks[]=check('Cache read/write',$cacheOk,$cacheOk?'passed':'failed','Verify cache permissions and available disk space.');
$overall=!array_filter($checks,fn($c)=>!$c['ok']);$json=isset($_GET['format'])&&$_GET['format']==='json';if($json)simon_json_response(['ok'=>$overall,'version'=>SIMON_FEED_VERSION,'root'=>SIMON_ROOT,'checks'=>$checks]);
?><!doctype html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>SIMON System Check</title><style>body{margin:0;background:#05041a;color:#eef5ff;font:14px/1.5 system-ui}.w{max-width:1050px;margin:auto;padding:24px}.top{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.top h1{margin:0}.badge{padding:7px 12px;border-radius:999px;background:<?=$overall?'#7cff9e':'#ff6b8f'?>;color:#05041a;font-weight:900}.grid{display:grid;gap:10px;margin-top:20px}.c{display:grid;grid-template-columns:34px 1fr;gap:12px;padding:14px;border:1px solid rgba(75,227,255,.22);background:#11102f;border-radius:15px}.ic{font-size:22px}.ok{color:#7cff9e}.bad{color:#ff6b8f}.muted{color:#9ba7c8}.fix{color:#ffb347;margin-top:5px}.btn{display:inline-block;color:#eef5ff;text-decoration:none;border:1px solid rgba(75,227,255,.3);padding:9px 13px;border-radius:999px;margin:4px}.actions{margin-left:auto}</style></head><body><div class="w"><div class="top"><div><h1>SIMON System Check</h1><div class="muted">Version <?=htmlspecialchars(SIMON_FEED_VERSION)?> · <?=htmlspecialchars(SIMON_ROOT)?></div></div><span class="badge"><?=$overall?'ALL CORE CHECKS PASS':'ACTION REQUIRED'?></span><div class="actions"><a class="btn" href="index.php">Dashboard</a><a class="btn" href="troubleshoot.php">Troubleshoot</a><a class="btn" href="?format=json" target="_blank">JSON</a></div></div><div class="grid"><?php foreach($checks as $c):?><div class="c"><div class="ic"><?=$c['ok']?'✅':'❌'?></div><div><b class="<?=$c['ok']?'ok':'bad'?>"><?=htmlspecialchars($c['name'])?></b><div class="muted"><?=htmlspecialchars($c['detail'])?></div><?php if(!$c['ok']&&$c['fix']):?><div class="fix">Fix: <?=htmlspecialchars($c['fix'])?></div><?php endif?></div></div><?php endforeach?></div></div></body></html>

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