From 7424a2654fb87fa5de8fb6f0a732afacfe364e6c Mon Sep 17 00:00:00 2001
From: Baldnerd <robbie@category5.tv>
Date: Sun, 9 Nov 2025 10:42:55 -0500
Subject: [PATCH] Add useful stats for NEMS Linux check

---
 installer | 100 ++++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 78 insertions(+), 22 deletions(-)

diff --git a/installer b/installer
index 8390549..5618b59 100755
--- a/installer
+++ b/installer
@@ -677,7 +677,8 @@ EOF
 # AJAX status info
 cat > "$WWW_ROOT/status.php" <<'EOF'
 <?php
-// no session needed; this is polled often
+// lightweight JSON status for dashboard / monitoring
+
 $flag = '/var/lib/btc-solo/.setup-complete';
 if (!file_exists($flag)) {
     http_response_code(403);
@@ -686,40 +687,95 @@ if (!file_exists($flag)) {
     exit;
 }
 
-// Bitcoin Core status
-$cmd = '/usr/local/bin/bitcoin-cli -conf=/etc/bitcoin/bitcoin.conf getblockchaininfo 2>/dev/null';
-$out = shell_exec($cmd);
-$info = $out ? json_decode($out, true) : null;
+header('Content-Type: application/json');
 
-// service health (simple is-active check)
+// ---- 1) bitcoin core info ----
+$btcInfo = null;
+$out = shell_exec('/usr/local/bin/bitcoin-cli -conf=/etc/bitcoin/bitcoin.conf getblockchaininfo 2>/dev/null');
+if ($out) {
+    $btcInfo = json_decode($out, true);
+}
+
+// ---- 2) service health ----
 function svc($name) {
     $res = trim(shell_exec('systemctl is-active ' . escapeshellarg($name) . ' 2>/dev/null'));
     return $res === 'active' ? 'active' : $res;
 }
-
 $services = [
     'bitcoind' => svc('bitcoind'),
-    'ckpool'   => svc('ckpool')
+    'ckpool'   => svc('ckpool'),
 ];
 
-header('Content-Type: application/json');
+// ---- 3) system info (non-sensitive) ----
 
-if (!$info) {
-    echo json_encode([
-        'error'    => 'bitcoin-cli failed',
-        'services' => $services
-    ]);
-    exit;
+// uptime
+$uptime_seconds = null;
+if (is_readable('/proc/uptime')) {
+    $up = trim(file_get_contents('/proc/uptime'));
+    $parts = explode(' ', $up);
+    $uptime_seconds = (int)floatval($parts[0]);
 }
 
+// load average
+$load = function_exists('sys_getloadavg') ? sys_getloadavg() : null;
+
+// memory
+$mem_total = null;
+$mem_avail = null;
+if (is_readable('/proc/meminfo')) {
+    $meminfo = file('/proc/meminfo', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    foreach ($meminfo as $line) {
+        if (strpos($line, 'MemTotal:') === 0) {
+            $mem_total = (int)filter_var($line, FILTER_SANITIZE_NUMBER_INT) * 1024;
+        } elseif (strpos($line, 'MemAvailable:') === 0) {
+            $mem_avail = (int)filter_var($line, FILTER_SANITIZE_NUMBER_INT) * 1024;
+        }
+    }
+}
+
+// disk (root)
+$disk_root_total = @disk_total_space('/');
+$disk_root_free  = @disk_free_space('/');
+
+// disk (bitcoind datadir)
+$btcDir = '/var/lib/bitcoind';
+$disk_btc_total = @disk_total_space($btcDir);
+$disk_btc_free  = @disk_free_space($btcDir);
+
+// bitcoind dir size
+$btc_dir_size = null;
+$du = shell_exec('du -sb ' . escapeshellarg($btcDir) . ' 2>/dev/null');
+if ($du) {
+    $parts = preg_split('/\s+/', trim($du));
+    if (isset($parts[0]) && ctype_digit($parts[0])) {
+        $btc_dir_size = (int)$parts[0];
+    }
+}
+
+// ---- 4) output ----
 echo json_encode([
-    'initialblockdownload' => $info['initialblockdownload'] ?? null,
-    'blocks'               => $info['blocks'] ?? null,
-    'headers'              => $info['headers'] ?? null,
-    'verificationprogress' => $info['verificationprogress'] ?? null,
-    'pruned'               => $info['pruned'] ?? null,
-    'services'             => $services
-]);
+    'initialblockdownload' => $btcInfo['initialblockdownload'] ?? null,
+    'blocks'               => $btcInfo['blocks'] ?? null,
+    'headers'              => $btcInfo['headers'] ?? null,
+    'verificationprogress' => $btcInfo['verificationprogress'] ?? null,
+    'pruned'               => $btcInfo['pruned'] ?? null,
+    'services'             => $services,
+    'system' => [
+        'uptime_seconds'        => $uptime_seconds,
+        'loadavg'               => $load,
+        'mem_total_bytes'       => $mem_total,
+        'mem_available_bytes'   => $mem_avail,
+        'disk_root' => [
+            'total_bytes' => $disk_root_total,
+            'free_bytes'  => $disk_root_free,
+        ],
+        'disk_bitcoind' => [
+            'total_bytes' => $disk_btc_total,
+            'free_bytes'  => $disk_btc_free,
+            'used_bytes'  => $btc_dir_size,
+        ],
+    ],
+], JSON_UNESCAPED_SLASHES);
 EOF
 
 # activation page