import sys
import os
import json
from unittest.mock import MagicMock

# Add current directory to path
sys.path.append(os.getcwd())

# 1. Mock EVERYTHING before importing the target
mock_config = MagicMock()
mock_config.settings = MagicMock()
sys.modules["app.config"] = mock_config

mock_db = MagicMock()
sys.modules["app.db_sql"] = MagicMock(db=mock_db)

# 2. Mock DESCRIBE result
mock_row = [
    ("created_on", "timestamp", "NO", "", "current_timestamp()", "")
]
mock_db.execute.return_value.fetchall.return_value = mock_row

# 3. Import and test
from app.lib_schema_v3 import get_object_schema_info

def test_isolated_logic():
    # We need to mock obj_type_kv_li as well
    import app.lib_schema_v3
    app.lib_schema_v3.obj_type_kv_li = {"journal": {"tbl": "journal", "mdl": MagicMock()}}
    
    print("Testing isolated logic for get_object_schema_info...")
    info = get_object_schema_info("journal")
    
    col = info["database"]["columns"][0]
    print(f"Resulting column info: {json.dumps(col, indent=2)}")
    
    assert col["field"] == "created_on"
    assert col["db_type"] == "timestamp"
    assert col["required"] is True
    assert col["db_default"] == "current_timestamp()"
    print("\nIsolated test passed! The logic in lib_schema_v3 is correct.")

if __name__ == "__main__":
    test_isolated_logic()