import bpy
import os
from pathlib import Path
from .utils import show_message_box, get_addon_prefs

class GPTB_OT_file_checker(bpy.types.Operator):
    bl_idname = "gp.file_checker"
    bl_label = "File check"
    bl_description = "Check / correct some aspect of the file, properties and such and report"
    bl_options = {"REGISTER"}

    # @classmethod
    # def poll(cls, context):
    #     return context.region_data.view_perspective == 'CAMERA'
    
    ## list of action : 
    # Lock main cam:
    # set scene res
    # set scene percentage at 100:
    # set show slider and sync range
    # set fps
    # set cursor type
    # GP use additive drawing (else creating a frame in dopesheet makes it blank...)
    # GP stroke placement/projection check
    # Disabled animation
    # Set onion skin filter to 'All type'

    def execute(self, context):
        prefs = get_addon_prefs()
        fix = prefs.fixprops
        problems = []

        ## Lock main cam:
        if fix.lock_main_cam:
            if not 'layout' in Path(bpy.data.filepath).stem.lower():#dont touch layout cameras
                if context.scene.camera:
                    cam = context.scene.camera
                    if cam.name == 'draw_cam' and cam.parent:
                        if cam.parent.type == 'CAMERA':
                            cam = cam.parent
                        else:
                            cam = None
                    if cam:
                        triple = (True,True,True)
                        if cam.lock_location[:] != triple or cam.lock_rotation[:] != triple:
                            problems.append('Lock main camera')
                            cam.lock_location = cam.lock_rotation = triple
        
        ## set scene res at pref res according to addon pref
        if fix.set_scene_res:
            rx, ry = prefs.render_res_x, prefs.render_res_y
            # TODO set (rx, ry) to camera resolution if specified in camera name
            if context.scene.render.resolution_x != rx or context.scene.render.resolution_y != ry:
                problems.append(f'Resolution {context.scene.render.resolution_x}x{context.scene.render.resolution_y} >> {rx}x{ry}')
                context.scene.render.resolution_x, context.scene.render.resolution_y = rx, ry

        ## set scene percentage at 100:
        if fix.set_res_percentage:
            if context.scene.render.resolution_percentage != 100:
                problems.append('Resolution output to 100%')
                context.scene.render.resolution_percentage = 100

        ## set fps according to preferences settings
        if fix.set_fps:
            if context.scene.render.fps != prefs.fps:
                problems.append( (f"framerate corrected {context.scene.render.fps} >> {prefs.fps}", 'ERROR') )
                context.scene.render.fps = prefs.fps
        
        ## set show slider and sync range
        if fix.set_slider_n_sync:
            for window in bpy.context.window_manager.windows:
                screen = window.screen
                for area in screen.areas:
                    if area.type == 'DOPESHEET_EDITOR':
                        if hasattr(area.spaces[0], 'show_sliders'):
                            setattr(area.spaces[0], 'show_sliders', True)

                        if hasattr(area.spaces[0], 'show_locked_time'):
                            setattr(area.spaces[0], 'show_locked_time', True)

        ## set cursor type (according to prefs ?)
        if fix.set_cursor_type:
            if context.mode in ("EDIT_GPENCIL", "SCULPT_GPENCIL"):
                tool = prefs.select_active_tool
                if tool != 'none':
                    if bpy.context.workspace.tools.from_space_view3d_mode(bpy.context.mode, create=False).idname != tool:
                        bpy.ops.wm.tool_set_by_id(name=tool)# Tweaktoolcode
                        problems.append(f'tool changed to {tool.split(".")[1]}')

        # ## GP use additive drawing (else creating a frame in dopesheet makes it blank...)
        # if not context.scene.tool_settings.use_gpencil_draw_additive:
        #     problems.append(f'Activated Gp additive drawing mode (snowflake)')
        #     context.scene.tool_settings.use_gpencil_draw_additive = True


        ## GP stroke placement/projection check
        if fix.check_front_axis:
            if context.scene.tool_settings.gpencil_sculpt.lock_axis != 'AXIS_Y':
                problems.append('/!\\ Draw axis not "Front" (Need Manual change if not Ok)')
        
        if fix.check_placement:
            if bpy.context.scene.tool_settings.gpencil_stroke_placement_view3d != 'ORIGIN':
                problems.append('/!\\ Draw placement not "Origin" (Need Manual change if not Ok)')


        ## Disabled animation
        if fix.list_disabled_anim:
            fcu_ct = 0
            for act in bpy.data.actions:
                if not act.users:
                    continue
                for fcu in act.fcurves:
                    if fcu.mute:
                        fcu_ct += 1
                        print(f"muted: {act.name} > {fcu.data_path}")
            if fcu_ct:
                problems.append(f'{fcu_ct} anim channel disabled (details -> console)')

        ## Use median point
        if fix.set_pivot_median_point:
            if context.scene.tool_settings.transform_pivot_point != 'MEDIAN_POINT':
                problems.append(f"Pivot changed from '{context.scene.tool_settings.transform_pivot_point}' to 'MEDIAN_POINT'")
                context.scene.tool_settings.transform_pivot_point = 'MEDIAN_POINT'

        if fix.disable_guide:
            if context.scene.tool_settings.gpencil_sculpt.guide.use_guide == True:
                problems.append(f"Disabled Draw Guide")
                context.scene.tool_settings.gpencil_sculpt.guide.use_guide = False

        if fix.autokey_add_n_replace:
            if context.scene.tool_settings.auto_keying_mode != 'ADD_REPLACE_KEYS':
                problems.append(f"Autokey mode reset to 'Add & Replace'")
                context.scene.tool_settings.auto_keying_mode = 'ADD_REPLACE_KEYS'

        # ## Set onion skin filter to 'All type'
        # fix_kf_type = 0 
        # for gp in bpy.data.grease_pencils:#from data
        #     if not gp.is_annotation:
        #         if gp.onion_keyframe_type != 'ALL': 
        #             gp.onion_keyframe_type = 'ALL'
        #             fix_kf_type += 1
        # if fix_kf_type:
        #     problems.append(f"{fix_kf_type} GP onion skin filter to 'All type'")

        # for ob in context.scene.objects:#from object
        #     if ob.type == 'GPENCIL':
        #         ob.data.onion_keyframe_type = 'ALL'

        #### --- print fix/problems report
        if problems:
            print('===File check===')
            for p in problems:
                if isinstance(p, str):
                    print(p)
                else:
                    print(p[0])
            # Show in viewport
            show_message_box(problems, _title = "Changed Settings", _icon = 'INFO')
        else:
            self.report({'INFO'}, 'All good')
        return {"FINISHED"}


""" OLD links checker with show_message_box
class GPTB_OT_links_checker(bpy.types.Operator):
    bl_idname = "gp.links_checker"
    bl_label = "Links check"
    bl_description = "Check states of file direct links"
    bl_options = {"REGISTER"}
    
    def execute(self, context):
        all_lnks = []
        has_broken_link = False
        ## check for broken links
        for current, lib in zip(bpy.utils.blend_paths(local=True), bpy.utils.blend_paths(absolute=True, local=True)):
            lfp = Path(lib)
            realib = Path(current)
            if not lfp.exists():
                has_broken_link = True
                all_lnks.append( (f"Broken link: {realib.as_posix()}", 'LIBRARY_DATA_BROKEN') )#lfp.as_posix()
            else:
                if realib.as_posix().startswith('//'):
                    all_lnks.append( (f"Link: {realib.as_posix()}", 'LINKED') )#lfp.as_posix()
                else:
                    all_lnks.append( (f"Link: {realib.as_posix()}", 'LIBRARY_DATA_INDIRECT') )#lfp.as_posix()

        all_lnks.sort(key=lambda x: x[1], reverse=True)
        if all_lnks:
            print('===File check===')
            for p in all_lnks:
                if isinstance(p, str):
                    print(p)
                else:
                    print(p[0])
            # Show in viewport
            show_message_box(all_lnks, _title = "Links", _icon = 'INFO')
        return {"FINISHED"} """


class GPTB_OT_links_checker(bpy.types.Operator):
    bl_idname = "gp.links_checker"
    bl_label = "Links check"
    bl_description = "Check states of file direct links"
    bl_options = {"REGISTER"}
    
    def execute(self, context):
        return {"FINISHED"}

    def draw(self, context):
        layout = self.layout
        layout.label(text=self.title)
        if self.broke_ct:
            layout.label(text="You can try to scan for missing files:")

            ## How to launch directly without filebrowser ?
            # in Shot folder
            layout.operator('file.find_missing_files', text='in parent hierarchy').directory = Path(bpy.data.filepath).parents[1].as_posix()
            if self.proj:
                # In Library
                layout.operator('file.find_missing_files', text='in library').directory = (Path(self.proj)/'library').as_posix()
                # In all project
                layout.operator('file.find_missing_files', text='in all project (last resort)').directory = self.proj


        layout.separator()
        for l in self.all_lnks:
            if l[1] == 'LIBRARY_DATA_BROKEN':
                layout.label(text=l[0], icon=l[1])
            else:
                split=layout.split(factor=0.75)
                split.label(text=l[0], icon=l[1])
                split.operator('wm.path_open', text='Open folder', icon='FILE_FOLDER').filepath = Path(bpy.path.abspath(l[0])).resolve().parent.as_posix()
                split.operator('wm.path_open', text='Open file', icon='FILE_TICK').filepath = Path(bpy.path.abspath(l[0])).resolve().as_posix()#os.path.abspath(bpy.path.abspath(dirname(l[0])))

    def invoke(self, context, event):
        self.all_lnks = []
        self.title = ''
        self.broke_ct = 0
        abs_ct = 0
        rel_ct = 0
        ## check for broken links
        for current, lib in zip(bpy.utils.blend_paths(local=True), bpy.utils.blend_paths(absolute=True, local=True)):
            lfp = Path(lib)
            realib = Path(current)
            if not lfp.exists():
                self.broke_ct += 1
                self.all_lnks.append( (f"{realib.as_posix()}", 'LIBRARY_DATA_BROKEN') )#lfp.as_posix()
            else:
                if realib.as_posix().startswith('//'):
                    rel_ct += 1
                    self.all_lnks.append( (f"{realib.as_posix()}", 'LINKED') )#lfp.as_posix()
                else:
                    abs_ct += 1
                    self.all_lnks.append( (f"{realib.as_posix()}", 'LIBRARY_DATA_INDIRECT') )#lfp.as_posix()

        if not self.all_lnks:
            self.report({'INFO'}, 'No external links in files')
            return {"FINISHED"}

        bct = f"{self.broke_ct} broken " if self.broke_ct else ''
        act = f"{abs_ct} absolute " if abs_ct else ''
        rct = f"{rel_ct} clean " if rel_ct else ''

        self.title = f"{bct}{act}{rct}"

        self.all_lnks.sort(key=lambda x: x[1], reverse=True)
        if self.all_lnks:
            print('===File check===')
            for p in self.all_lnks:
                if isinstance(p, str):
                    print(p)
                else:
                    print(p[0])
            # Show in viewport
            
        # if broke_ct == 0:
        #     show_message_box(self.all_lnks, _title = self.title, _icon = 'INFO')# Links
        #     return {"FINISHED"}
        try:
            self.proj = context.preferences.addons['pipe_sync'].preferences['local_folder']
        except:
            self.proj = None
        return context.window_manager.invoke_props_dialog(self, width=800)

'''### OLD
class GPTB_OT_check_scene(bpy.types.Operator):
    bl_idname = "gp.scene_check"
    bl_label = "Check GP scene"
    bl_description = "Check and fix scene settings"
    bl_options = {"REGISTER"}

    @classmethod
    def poll(cls, context):
        return True

    def execute(self, context):
        ## check scene resolution / 100% / framerate
        context.scene.render.resolution_percentage = 100
        context.scene.render.resolution_x = 3072# define addon properties to make generic ?
        context.scene.render.resolution_y = 1620# define addon properties to make generic ?
        context.scene.render.fps = 24# define addon properties to make generic ?

        ## check GP datas name
        gp_os = [o for o in context.scene.objects if o.type == 'GPENCIL' if o.data.users == 1]#no multiple users

        for gpo in gp_os:
            if gpo.data.name.startswith('Stroke'):# dont touch already renamed group
                if gpo.data.name != gpo.name:
                    print('renaming GP data:', gpo.data.name, '-->', gpo.name)
                    gpo.data.name = gpo.name

        ## disable autolock
        context.scene.tool_settings.lock_object_mode = False

        return {"FINISHED"}
'''

classes = (
# GPTB_OT_check_scene,
GPTB_OT_file_checker,
GPTB_OT_links_checker,
)

def register():
    for cls in classes:
        bpy.utils.register_class(cls)

def unregister():
    for cls in reversed(classes):
        bpy.utils.unregister_class(cls)