hoàn thành chức năng remove cloud train

test_planetary_computer.py

@@ -0,0 +1,88 @@
+"""
+Test Microsoft Planetary Computer connectivity và token
+"""
+import planetary_computer
+from pystac_client import Client
+from datetime import datetime, timedelta
+
+print("=" * 70)
+print("🧪 TESTING MICROSOFT PLANETARY COMPUTER CONNECTION")
+print("=" * 70)
+
+# Test 1: Basic connection
+print("\n1️⃣ Testing basic connection...")
+try:
+    catalog = Client.open(
+        "https://planetarycomputer.microsoft.com/api/stac/v1",
+        modifier=planetary_computer.sign_inplace,
+    )
+    print("✅ Successfully connected to Planetary Computer")
+    print(f"   Catalog ID: {catalog.id}")
+    print(f"   Title: {catalog.title}")
+except Exception as e:
+    print(f"❌ Connection failed: {e}")
+    exit(1)
+
+# Test 2: List collections
+print("\n2️⃣ Testing collections access...")
+try:
+    collections = list(catalog.get_collections())
+    print(f"✅ Found {len(collections)} collections")
+    sentinel_2 = [c for c in collections if 'sentinel-2' in c.id.lower()]
+    print(f"   Sentinel-2 collections: {[c.id for c in sentinel_2]}")
+except Exception as e:
+    print(f"❌ Collections access failed: {e}")
+
+# Test 3: Small search query (very conservative)
+print("\n3️⃣ Testing small search query...")
+try:
+    # Tiny bbox in Vietnam
+    bbox = [105.8, 10.0, 105.9, 10.1]  # ~10km x 10km area
+    end_date = datetime.now()
+    start_date = end_date - timedelta(days=7)  # Last 7 days only
+    
+    time_range = f"{start_date.strftime('%Y-%m-%d')}/{end_date.strftime('%Y-%m-%d')}"
+    
+    print(f"   Bbox: {bbox}")
+    print(f"   Time: {time_range}")
+    print(f"   Searching...")
+    
+    search = catalog.search(
+        collections=["sentinel-2-l2a"],
+        bbox=bbox,
+        datetime=time_range,
+        limit=5  # Only 5 items
+    )
+    
+    items = []
+    for i, item in enumerate(search.items()):
+        items.append(item)
+        if i >= 4:  # Stop at 5
+            break
+    
+    print(f"✅ Search successful! Found {len(items)} items")
+    if items:
+        first_item = items[0]
+        print(f"   First item: {first_item.id}")
+        print(f"   Date: {first_item.datetime}")
+        
+        # Test token signing
+        signed_item = planetary_computer.sign(first_item)
+        print(f"✅ SAS token signing works")
+        print(f"   Asset keys: {list(signed_item.assets.keys())[:5]}")
+        
+except Exception as e:
+    print(f"❌ Search failed: {e}")
+    import traceback
+    traceback.print_exc()
+
+print("\n" + "=" * 70)
+print("🏁 Test completed!")
+print("=" * 70)
+print("\n💡 Nếu test này PASS:")
+print("   → Planetary Computer hoạt động bình thường")
+print("   → Vấn đề là query quá lớn (bbox/time range/max_scenes)")
+print("\n💡 Nếu test này FAIL:")
+print("   → Kiểm tra internet connection")
+print("   → Thử lại sau (server có thể bị quá tải)")
+print("   → Xem xét dùng dữ liệu local")