import unittest
from unittest.mock import MagicMock
import sys
from pathlib import Path

PROJECT_ROOT = Path(__file__).resolve().parent.parent
sys.path.append(str(PROJECT_ROOT.parent))

class DummyBase:
    def _get_data_dict(self):
        if not hasattr(self, "_data") or self._data is None:
            self._data = {}
        return self._data

    def __getitem__(self, key):
        return self._get_data_dict()[key]

    def __setitem__(self, key, value):
        self._get_data_dict()[key] = value

    def __contains__(self, key):
        return key in self._get_data_dict()

    def get(self, key, default=None):
        return self._get_data_dict().get(key, default)

class DummyObject:
    def __init__(self, name="TestObj", obj_type='MESH'):
        self.name = name
        self.type = obj_type

mock_types = MagicMock()
mock_types.NodeSocket = type("NodeSocket", (DummyBase,), {})
mock_types.Node = DummyBase
mock_types.NodeCustomGroup = type("NodeCustomGroup", (DummyBase,), {})
mock_types.NodeTree = type("NodeTree", (DummyBase,), {})
mock_types.PropertyGroup = type("PropertyGroup", (DummyBase,), {})
mock_types.Operator = type("Operator", (DummyBase,), {})
mock_types.Panel = type("Panel", (DummyBase,), {})
mock_types.Menu = type("Menu", (DummyBase,), {})
mock_types.Object = DummyObject
mock_types.Collection = type("Collection", (DummyBase,), {})

if 'bpy' not in sys.modules:
    mock_bpy = MagicMock()
    mock_bpy.types = mock_types
    sys.modules['bpy'] = mock_bpy
    sys.modules['bpy.types'] = mock_types
    sys.modules['bpy.props'] = MagicMock()
    sys.modules['bpy.utils'] = MagicMock()
    sys.modules['bpy.utils.previews'] = MagicMock()
    sys.modules['bpy.app'] = MagicMock()
    sys.modules['bpy.app.handlers'] = MagicMock()

import bpy

class TestNodeSocket:
    def __init__(self, name="", identifier="", node=None):
        self.name = name
        self.identifier = identifier or name
        self.is_linked = False
        self.links = []
        self.node = node

    def __repr__(self):
        return f"<TestNodeSocket name={self.name!r} identifier={self.identifier!r}>"

class TestSocketCollection(list):
    def __init__(self, node=None):
        super().__init__()
        self.node = node

    def new(self, type_name, name, identifier=""):
        sock = TestNodeSocket(name, identifier or name, node=self.node)
        self.append(sock)
        return sock

    def remove(self, sock):
        if sock in self:
            super().remove(sock)

    def get(self, name, default=None):
        for item in self:
            if item.name == name or item.identifier == name:
                return item
        return default

    def find(self, name):
        for i, item in enumerate(self):
            if item.name == name or item.identifier == name:
                return i
        return -1

    def __contains__(self, item):
        if isinstance(item, str):
            return any(sock.name == item or sock.identifier == item for sock in self)
        return super().__contains__(item)

    def move(self, from_idx, to_idx):
        item = self.pop(from_idx)
        self.insert(to_idx, item)

class DummyCollection:
    def __init__(self, name="TestCollection", objects=None):
        self.name = name
        self.objects = objects or []

from NodeSlicer.core.nodeslicer.nodes.inputs import SLICENODE_CollectionObjects

class TestCollectionObjectsSorting(unittest.TestCase):
    def setUp(self):
        self.node = SLICENODE_CollectionObjects()
        self.node.inputs = TestSocketCollection(self.node)
        self.node.outputs = TestSocketCollection(self.node)

    def test_outputs_sorted_alphabetically(self):
        # Create collection with objects in non-alphabetical order
        obj_z = DummyObject("Zebra", 'MESH')
        obj_a = DummyObject("Apple", 'MESH')
        obj_m = DummyObject("Mango", 'MESH')
        obj_camera = DummyObject("Camera", 'CAMERA')  # Should be ignored

        collection = DummyCollection("Fruits", [obj_z, obj_a, obj_camera, obj_m])
        self.node.collection = collection

        self.node._update_outputs()

        output_names = [o.name for o in self.node.outputs]
        self.assertEqual(output_names, ["Apple", "Mango", "Zebra"])

    def test_dynamic_add_and_reorder(self):
        # Initial collection with B and D
        obj_b = DummyObject("Banana", 'MESH')
        obj_d = DummyObject("Date", 'MESH')
        collection = DummyCollection("Fruits", [obj_b, obj_d])
        self.node.collection = collection

        self.node._update_outputs()
        self.assertEqual([o.name for o in self.node.outputs], ["Banana", "Date"])

        # Add Apple (which should be placed at the beginning) and Cherry (between Banana and Date)
        obj_a = DummyObject("Apple", 'MESH')
        obj_c = DummyObject("Cherry", 'MESH')
        collection.objects.extend([obj_a, obj_c])

        self.node._update_outputs()
        self.assertEqual([o.name for o in self.node.outputs], ["Apple", "Banana", "Cherry", "Date"])

    def test_remove_object(self):
        obj_a = DummyObject("Apple", 'MESH')
        obj_b = DummyObject("Banana", 'MESH')
        obj_c = DummyObject("Cherry", 'MESH')
        collection = DummyCollection("Fruits", [obj_a, obj_b, obj_c])
        self.node.collection = collection

        self.node._update_outputs()
        self.assertEqual([o.name for o in self.node.outputs], ["Apple", "Banana", "Cherry"])

        # Remove Banana
        collection.objects = [obj_a, obj_c]
        self.node._update_outputs()
        self.assertEqual([o.name for o in self.node.outputs], ["Apple", "Cherry"])

    def test_evaluate_output(self):
        obj_a = DummyObject("Apple", 'MESH')
        bpy.data.objects = {"Apple": obj_a}
        from NodeSlicer.core.nodeslicer.nodes import inputs as inp_module
        inp_module.bpy.data.objects = {"Apple": obj_a}
        collection = DummyCollection("Fruits", [obj_a])
        self.node.collection = collection
        self.node._update_outputs()

        result = self.node.evaluate_output("Apple")
        self.assertEqual(result, obj_a)

        result_nonexistent = self.node.evaluate_output("NonExistent")
        self.assertIsNone(result_nonexistent)

if __name__ == '__main__':
    unittest.main()