"""UE5 Line Trace API 精确探测。"""

import unreal

print("=" * 60)
print("Line Trace API Probe v2")
print("=" * 60)

# Spawn test cube
mesh = unreal.load_asset("/Game/BlockingStarterPack/Meshes/Primitives/SM_Cube.SM_Cube")
subsys = unreal.get_editor_subsystem(unreal.EditorActorSubsystem)
actor = subsys.spawn_actor_from_object(mesh, unreal.Vector(0, 0, 0))

trace_ch = unreal.TraceTypeQuery.TRACE_TYPE_QUERY1
print(f"trace_channel = {trace_ch} (type: {type(trace_ch).__name__})")

# 1. Find draw_debug_type enum
print("\n--- Find draw_debug_type ---")
for name in ['EDrawDebugTrace', 'DrawDebugTrace']:
    try:
        enum_cls = getattr(unreal, name)
        print(f"  unreal.{name} found: {dir(enum_cls)}")
        none_val = enum_cls.NONE
        print(f"  {name}.NONE = {none_val}")
        break
    except AttributeError:
        print(f"  unreal.{name}: not found")

# 2. Test line_trace_single with correct enum
print("\n--- Test line_trace_single ---")
try:
    draw_debug = unreal.EDrawDebugTrace.NONE
except AttributeError:
    draw_debug = None

# Attempt 1: 7 args with draw_debug
print(f"  Attempt 1: 7 args, draw_debug={draw_debug}")
try:
    hit = unreal.SystemLibrary.line_trace_single(
        actor,
        unreal.Vector(50, 50, 200),
        unreal.Vector(50, 50, -200),
        trace_ch,
        False, [], draw_debug,
    )
    print(f"    HIT: {hit}")
    if hit and hasattr(hit, 'impact_point'):
        print(f"    impact: ({hit.impact_point.x},{hit.impact_point.y},{hit.impact_point.z})")
except Exception as e:
    print(f"    FAIL: {e}")

# Attempt 2: try line_trace_single_new
print(f"  Attempt 2: line_trace_single_new")
try:
    hit = unreal.SystemLibrary.line_trace_single_new(
        actor,
        unreal.Vector(50, 50, 200),
        unreal.Vector(50, 50, -200),
        trace_ch,
        False, [],
    )
    print(f"    HIT: {hit}")
    if hit and hasattr(hit, 'impact_point'):
        print(f"    impact: ({hit.impact_point.x},{hit.impact_point.y},{hit.impact_point.z})")
except Exception as e:
    print(f"    FAIL: {e}")

# Attempt 3: line_trace_single_for_objects
print(f"  Attempt 3: line_trace_single_for_objects")
try:
    hit = unreal.SystemLibrary.line_trace_single_for_objects(
        actor,
        unreal.Vector(50, 50, 200),
        unreal.Vector(50, 50, -200),
        [unreal.ObjectTypeQuery1],
        False, [], draw_debug,
    )
    print(f"    HIT: {hit}")
except Exception as e:
    print(f"    FAIL: {e}")

# Attempt 4: line_trace_single_by_profile
print(f"  Attempt 4: line_trace_single_by_profile")
try:
    hit = unreal.SystemLibrary.line_trace_single_by_profile(
        actor,
        unreal.Vector(50, 50, 200),
        unreal.Vector(50, 50, -200),
        "Visibility",
        False, [],
    )
    print(f"    HIT: {hit}")
    if hit and hasattr(hit, 'impact_point'):
        print(f"    impact: ({hit.impact_point.x},{hit.impact_point.y},{hit.impact_point.z})")
except Exception as e:
    print(f"    FAIL: {e}")

# Cleanup
unreal.EditorLevelLibrary.destroy_actor(actor)
print("\n" + "=" * 60)
print("Done.")
unreal.SystemLibrary.execute_console_command(None, "quit")