"""
Test workflow persistence functionality
"""

import os
import shutil
import time
from workflows import WorkflowTask, WorkflowDefinition, WorkflowStore


def test_persistence():
    """Test WorkflowStore save, load, list, and delete operations"""

    # Use a test-specific cache directory
    test_cache = "./test_workflow_cache"

    # Clean up any existing test cache
    if os.path.exists(test_cache):
        shutil.rmtree(test_cache)

    print("=" * 60)
    print("Testing WorkflowStore Persistence")
    print("=" * 60)

    # Step 1: Create WorkflowStore instance
    print("\n[1] Creating WorkflowStore...")
    store = WorkflowStore(store_path=test_cache)
    assert os.path.exists(test_cache), "Cache directory not created"
    print(f"[PASS] Store created at: {test_cache}")

    # Step 2: Create sample workflow
    print("\n[2] Creating sample workflow...")
    workflow = WorkflowDefinition(
        name="test_workflow",
        description="Test workflow for persistence",
        tasks=[
            WorkflowTask(
                id="task_1",
                tool="research",
                args={"query": "test query"},
                depends_on=[]
            ),
            WorkflowTask(
                id="task_2",
                tool="analyze",
                args={"data": "${task_1}"},
                depends_on=["task_1"]
            )
        ],
        final_task="task_2",
        max_parallel=2,
        timeout_seconds=300
    )
    print(f"[PASS] Workflow created: {workflow.name}")
    print(f"  - Tasks: {len(workflow.tasks)}")
    print(f"  - Final task: {workflow.final_task}")

    # Step 3: Create sample result
    print("\n[3] Creating sample execution result...")
    result = {
        "success": True,
        "result": {"output": "test output"},
        "execution_time": 1.23,
        "trace": [
            {"task_id": "task_1", "status": "completed"},
            {"task_id": "task_2", "status": "completed"}
        ],
        "all_results": {
            "task_1": {"data": "result 1"},
            "task_2": {"data": "result 2"}
        }
    }
    print(f"[PASS] Result created")
    print(f"  - Success: {result['success']}")
    print(f"  - Execution time: {result['execution_time']}s")

    # Step 4: Save workflow
    print("\n[4] Saving workflow...")
    workflow_id = f"test_workflow_{int(time.time())}"
    store.save_workflow(workflow_id, workflow, result)

    # Verify file exists
    expected_path = os.path.join(test_cache, f"{workflow_id}.json")
    assert os.path.exists(expected_path), "Workflow file not created"
    print(f"[PASS] Workflow saved: {workflow_id}")
    print(f"  - File: {expected_path}")

    # Step 5: List workflows
    print("\n[5] Listing workflows...")
    workflow_ids = store.list_workflows()
    assert len(workflow_ids) == 1, f"Expected 1 workflow, found {len(workflow_ids)}"
    assert workflow_id in workflow_ids, "Saved workflow not in list"
    print(f"[PASS] Found {len(workflow_ids)} workflow(s):")
    for wf_id in workflow_ids:
        print(f"  - {wf_id}")

    # Step 6: Load workflow
    print("\n[6] Loading workflow...")
    loaded_data = store.load_workflow(workflow_id)
    assert loaded_data is not None, "Failed to load workflow"
    print(f"[PASS] Workflow loaded: {loaded_data['workflow_id']}")

    # Step 7: Verify loaded data matches original
    print("\n[7] Verifying loaded data...")
    assert loaded_data["workflow_id"] == workflow_id, "Workflow ID mismatch"
    assert loaded_data["workflow"]["name"] == workflow.name, "Workflow name mismatch"
    assert loaded_data["result"]["success"] == result["success"], "Result success mismatch"
    assert loaded_data["result"]["execution_time"] == result["execution_time"], "Execution time mismatch"

    print("[PASS] Data verification passed:")
    print(f"  - Workflow ID: {loaded_data['workflow_id']}")
    print(f"  - Workflow name: {loaded_data['workflow']['name']}")
    print(f"  - Tasks: {len(loaded_data['workflow']['tasks'])}")
    print(f"  - Result success: {loaded_data['result']['success']}")

    # Step 8: Test loading non-existent workflow
    print("\n[8] Testing non-existent workflow...")
    missing = store.load_workflow("non_existent_workflow")
    assert missing is None, "Should return None for non-existent workflow"
    print("[PASS] Correctly returns None for non-existent workflow")

    # Step 9: Test delete workflow
    print("\n[9] Testing workflow deletion...")
    deleted = store.delete_workflow(workflow_id)
    assert deleted is True, "Delete should return True"
    assert not os.path.exists(expected_path), "File should be deleted"

    workflow_ids = store.list_workflows()
    assert len(workflow_ids) == 0, "Workflow list should be empty after deletion"
    print(f"[PASS] Workflow deleted successfully")

    # Step 10: Test delete non-existent workflow
    print("\n[10] Testing deletion of non-existent workflow...")
    deleted = store.delete_workflow("non_existent_workflow")
    assert deleted is False, "Delete should return False for non-existent workflow"
    print("[PASS] Correctly returns False for non-existent workflow")

    # Cleanup
    print("\n[Cleanup] Removing test cache...")
    shutil.rmtree(test_cache)
    print("[PASS] Test cache removed")

    print("\n" + "=" * 60)
    print("[SUCCESS] ALL TESTS PASSED")
    print("=" * 60)


if __name__ == "__main__":
    test_persistence()