import shutil
import bpy
import os
import json
import nodes_pipeline
from bpy.types import Menu, Panel, UIList
from bpy.props import *

def cb_scene_update(context):
    edit_obj = bpy.context.edit_object
    if edit_obj is not None and edit_obj.is_updated_data is True:
        edit_obj.geometry_cached = False

def initProperties():
    # For object
    bpy.types.Object.geometry_cached = bpy.props.BoolProperty(name="Geometry Cached", default=False) # TODO: move to mesh type
    bpy.types.Object.instanced_children = bpy.props.BoolProperty(name="Instanced Children", default=False)
    bpy.types.Object.custom_material = bpy.props.BoolProperty(name="Custom Material", default=False)
    bpy.types.Object.custom_material_name = bpy.props.StringProperty(name="Name", default="")
    bpy.types.Object.game_export = bpy.props.BoolProperty(name="Game Export", default=True)
    # For geometry
    bpy.types.Mesh.static_usage = bpy.props.BoolProperty(name="Static Usage", default=True)
    # For camera
    bpy.types.Camera.frustum_culling = bpy.props.BoolProperty(name="Frustum Culling", default=False)
    bpy.types.Camera.sort_front_to_back = bpy.props.BoolProperty(name="Sort Front to Back", default=False)
    bpy.types.Camera.pipeline_path = bpy.props.StringProperty(name="Pipeline Path", default="deferred_pipeline")
    bpy.types.Camera.pipeline_id = bpy.props.StringProperty(name="Pipeline ID", default="deferred")
	# TODO: Specify multiple material ids, merge ids from multiple cameras 
    bpy.types.Camera.geometry_context = bpy.props.StringProperty(name="Geometry", default="deferred")
    bpy.types.Camera.shadows_context = bpy.props.StringProperty(name="Shadows", default="shadowmap")
    bpy.types.Camera.translucent_context = bpy.props.StringProperty(name="Translucent", default="translucent")
    bpy.types.Camera.is_probe = bpy.props.BoolProperty(name="Probe", default=False)
    bpy.types.Camera.probe_texture = bpy.props.StringProperty(name="Texture", default="")
    bpy.types.Camera.probe_num_mips = bpy.props.IntProperty(name="Number of mips", default=0)
    bpy.types.Camera.probe_volume = bpy.props.StringProperty(name="Volume", default="")
    bpy.types.Camera.probe_strength = bpy.props.FloatProperty(name="Strength", default=1.0)
    bpy.types.Camera.probe_blending = bpy.props.FloatProperty(name="Blending", default=0.0)
	# TODO: move to world
    bpy.types.Camera.world_envtex_name = bpy.props.StringProperty(name="Environment Texture", default='')
    bpy.types.Camera.world_envtex_num_mips = bpy.props.IntProperty(name="Number of mips", default=0)
    bpy.types.Camera.world_envtex_strength = bpy.props.FloatProperty(name="Environment Strength", default=1.0)
    bpy.types.Camera.last_decal_context = bpy.props.StringProperty(name="Decal Context", default='')
    bpy.types.World.world_defs = bpy.props.StringProperty(name="World Shader Defs", default='')
    # For material
    bpy.types.Material.receive_shadow = bpy.props.BoolProperty(name="Receive Shadow", default=True)
    bpy.types.Material.custom_shader = bpy.props.BoolProperty(name="Custom Shader", default=False)
    bpy.types.Material.custom_shader_name = bpy.props.StringProperty(name="Name", default='')
    bpy.types.Material.stencil_mask = bpy.props.IntProperty(name="Stencil Mask", default=0)
    bpy.types.Material.export_tangents = bpy.props.BoolProperty(name="Export Tangents", default=False)
    bpy.types.Material.skip_context = bpy.props.StringProperty(name="Skip Context", default='')

# Menu in object region
class ObjectPropsPanel(bpy.types.Panel):
    bl_label = "Cycles Props"
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "object"
 
    def draw(self, context):
        layout = self.layout
        obj = bpy.context.object

        layout.prop(obj, 'game_export')

        if obj.type == 'MESH':
            layout.prop(obj, 'instanced_children')
            layout.prop(obj, 'custom_material')
            if obj.custom_material:
                layout.prop(obj, 'custom_material_name')

# Menu in data region
class DataPropsPanel(bpy.types.Panel):
    bl_label = "Cycles Props"
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "data"
 
    def draw(self, context):
        layout = self.layout
        obj = bpy.context.object

        if obj.type == 'CAMERA':
            layout.prop(obj.data, 'is_probe')
            if obj.data.is_probe == True:
                layout.prop(obj.data, 'probe_texture')
                layout.prop_search(obj.data, "probe_volume", bpy.data, "objects")
                layout.prop(obj.data, 'probe_strength')
                layout.prop(obj.data, 'probe_blending')
            
            layout.prop(obj.data, 'frustum_culling')
            layout.prop(obj.data, 'sort_front_to_back')
            layout.prop_search(obj.data, "pipeline_path", bpy.data, "node_groups")
            layout.prop(obj.data, 'pipeline_id')
            layout.prop(obj.data, 'geometry_context')
            layout.prop(obj.data, 'shadows_context')
            layout.prop(obj.data, 'translucent_context')
            layout.operator("cg.reset_pipelines")
        elif obj.type == 'MESH':
            layout.prop(obj.data, 'static_usage')

# Reset pipelines
class OBJECT_OT_RESETPIPELINESButton(bpy.types.Operator):
    bl_idname = "cg.reset_pipelines"
    bl_label = "Reset Pipelines"
 
    def execute(self, context):
        nodes_pipeline.reset_pipelines()
        return{'FINISHED'}

# Menu in materials region
class MatsPropsPanel(bpy.types.Panel):
    bl_label = "Cycles Props"
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "material"
 
    def draw(self, context):
        layout = self.layout
        mat = bpy.context.material

        layout.prop(mat, 'receive_shadow')
        layout.prop(mat, 'custom_shader')
        if mat.custom_shader:
            layout.prop(mat, 'custom_shader_name')
        layout.prop(mat, 'stencil_mask')
        layout.prop(mat, 'skip_context')


# Registration
def register():
    bpy.utils.register_module(__name__)
    initProperties()
    bpy.app.handlers.scene_update_post.append(cb_scene_update)

def unregister():
    bpy.app.handlers.scene_update_post.remove(cb_scene_update)
    bpy.utils.unregister_module(__name__)