# SPDX-License-Identifier: GPL-2.0-or-later

import bpy
from bpy.types import Panel
from pathlib import Path
from vse_toolbox.bl_utils import get_addon_prefs, get_settings
from vse_toolbox.sequencer_utils import get_active_strip

class VSETB_main:
    bl_space_type = "SEQUENCE_EDITOR"
    bl_region_type = "UI"
    bl_category = "VSE ToolBox"
    bl_label = "VSE ToolBox"


class VSETB_PT_main(VSETB_main, Panel):

    def draw_header(self, context):
        layout = self.layout
        row = layout.row()
        row.operator('vse_toolbox.load_projects', icon='FILE_REFRESH', text='')

    def draw(self, context):
        wm = context.window_manager
        scn = context.scene

        settings = get_settings()
        prefs = get_addon_prefs()
        
        project = settings.active_project

        layout = self.layout        
        col = layout.column()
        row = col.row(align=True)

        row.operator('vse_toolbox.set_scene', text='Set Scene', icon='SCENE_DATA')
        row.prop(settings, 'toogle_prefs', text='', icon='PREFERENCES', toggle=True)
        
        if settings.toogle_prefs:
            box = col.box()
            col = box.column(align=True)
            col.use_property_split = True
            col.use_property_decorate = False
            
            col.prop(settings, 'project_name', text='Projects')

            if project:
                if project.episodes:
                    col.prop(project, 'episode_name', text='Episodes')
                
                col.prop(project, 'shot_template')
                col.separator()
                col.operator('vse_toolbox.new_episode', text='Add Episode', icon='IMPORT')

        # TODO FAIRE DES VRAIS OPS
        col = layout.column()
        row = col.row(align=True)
        row.operator('sequencer.import', text='Import', icon='IMPORT')
        row.operator('sequencer.export_csv', text='Export', icon='EXPORT')
        
        op = col.operator('sequencer.strips_render', text='Render Strips', icon='RENDER_ANIMATION')


class VSETB_PT_rename(VSETB_main, Panel):
    bl_label = "Rename Strips"
    bl_parent_id = "VSETB_PT_main"
    
    def draw(self, context):
        prefs = get_addon_prefs()
        settings = get_settings()
        project = settings.active_project
        
        if not project:
            return

        episode = project.episode_name

        layout = self.layout
        col = layout.column()

        col.use_property_split = True 

        row = col.row()
        shot_increment = project.shot_increment
        shot_template = project.shot_template.format(
            episode=episode, index=0 * shot_increment)
        
        row.separator()
        
        op = row.operator('sequencer.strips_rename', text='Rename Shots', icon='SORTALPHA')
        op.channel_name = 'Shots'
        op.template = project.shot_template
        op.increment = project.shot_increment
        op.start_number = 10
        row.label(text=f'{shot_template}')


class VSETB_PT_casting(VSETB_main, Panel):
    bl_label = "Shot Casting"
    bl_parent_id = "VSETB_PT_main"

    # def draw_header(self, context):
    #     settings = get_settings()
    #     project = settings.active_project
        
    #     if not project or not project.assets:
    #         ico = 'ERROR'
    #     else:
    #         ico = 'REFRESH'

    #     layout = self.layout
    #     row = layout.row()
    #     row.operator('vse_toolbox.load_assets', icon=ico, text='')

    def draw(self, context):
        layout = self.layout
        scn = context.scene
        active_strip = scn.sequence_editor.active_strip
        if not active_strip:
            return 

        settings = get_settings()
        project = settings.active_project

        if not project:
            return

        if not project.assets:
            row = layout.row(align=True)
            row.label(text='No Assets found. Load Assets first.')
            row.operator('vse_toolbox.load_assets', icon='FILE_REFRESH', text='')
        else:
            row = layout.row(align=True)
            row.label(text=f'Assets for {project.name} successfully loaded.')

        row = layout.row()
        ico = ("RESTRICT_SELECT_OFF" if settings.auto_select_strip else "RESTRICT_SELECT_ON")
        row.prop(settings, "auto_select_strip", icon=ico)

        row = layout.row()
        row.label(text=f"Current Shot: {Path(active_strip.name).stem}")
        row = layout.row()
        row.template_list(
            "VSETB_UL_casting", "shot_casting",
            active_strip, "casting",
            active_strip, "casting_index"
        )

        col = row.column(align=True)

        col.operator('vse_toolbox.casting_add', icon='ADD', text="")
        col.operator('vse_toolbox.casting_actions', icon='REMOVE', text="").action = 'REMOVE'
        col.separator()
        col.operator('vse_toolbox.casting_actions', icon='TRIA_UP', text="").action = 'UP'
        col.operator('vse_toolbox.casting_actions', icon='TRIA_DOWN', text="").action = 'DOWN'


classes=(
    VSETB_PT_main,
    VSETB_PT_rename,
    VSETB_PT_casting,
)

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

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