God Mode Valhalla: Initial Standalone Commit

src/lib/db/mechanic.ts

@@ -0,0 +1,55 @@
+import { query } from '../db';
+
+export const MECHANIC_OPS = {
+    // 1. DIAGNOSTICS (The Stethoscope)
+    getHealth: async () => {
+        const connections = await query(`
+            SELECT count(*)::int as active, state 
+            FROM pg_stat_activity 
+            GROUP BY state;
+        `);
+
+        const size = await query(`
+            SELECT pg_size_pretty(pg_database_size(current_database())) as size;
+        `);
+
+        // Note: pg_statio_user_tables requires stats collection to be enabled (default on)
+        const cache = await query(`
+            SELECT 
+                sum(heap_blks_read) as disk_read,
+                sum(heap_blks_hit) as mem_hit,
+                sum(heap_blks_hit) / NULLIF((sum(heap_blks_hit) + sum(heap_blks_read)), 0)::float as ratio
+            FROM pg_statio_user_tables;
+        `);
+
+        return {
+            connections: connections.rows,
+            size: size.rows[0]?.size || 'Unknown',
+            cache: cache.rows[0] || { ratio: 0 }
+        };
+    },
+
+    // 2. THE "RED BUTTON" COMMANDS (Fix It)
+    maintenance: {
+        vacuum: async () => {
+            // Cleans up dead rows and optimizes speed
+            await query('VACUUM (VERBOSE, ANALYZE);');
+            return "Vacuum Complete: DB optimized.";
+        },
+        reindex: async () => {
+            // Fixes corrupted or slow indexes
+            await query('REINDEX DATABASE directus;');
+            return "Reindex Complete: Indexes rebuilt.";
+        },
+        kill_locks: async () => {
+            // Kills any query running longer than 5 minutes
+            const res = await query(`
+                SELECT pg_terminate_backend(pid) 
+                FROM pg_stat_activity 
+                WHERE state = 'active' 
+                AND (now() - query_start) > interval '5 minutes';
+             `);
+            return `Panic Protocol: Terminated ${res.rowCount} stuck processes.`;
+        }
+    }
+};