added ping uptime test

measurement/db.py

@@ -24,6 +24,36 @@ def init_db(db_path=DB_PATH):
     conn.commit()
     conn.close()
 
+def init_ping_db(db_path=DB_PATH):
+    conn = sqlite3.connect(db_path)
+    c = conn.cursor()
+    c.execute('''
+        CREATE TABLE IF NOT EXISTS ping_checks (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            timestamp REAL NOT NULL,
+            target_ip TEXT NOT NULL,
+            success BOOLEAN NOT NULL,
+            latency_ms REAL
+        )
+    ''')
+    conn.commit()
+    try:
+        conn.execute("ALTER TABLE ping_checks ADD COLUMN is_gateway INTEGER DEFAULT 0")
+        conn.commit()
+    except sqlite3.OperationalError:
+        pass  # column already exists
+    conn.close()
+
+def insert_ping_result(target_ip: str, success: bool, latency_ms: float | None, is_gateway: bool = False, db_path=DB_PATH):
+    conn = sqlite3.connect(db_path)
+    c = conn.cursor()
+    c.execute(
+        "INSERT INTO ping_checks (timestamp, target_ip, success, latency_ms, is_gateway) VALUES (?, ?, ?, ?, ?)",
+        (time.time(), target_ip, success, latency_ms, int(is_gateway))
+    )
+    conn.commit()
+    conn.close()
+
 def insert_result(data: dict|None, db_path=DB_PATH):
     conn = sqlite3.connect(db_path)
     c = conn.cursor()