import bpy
from .. import __package__ as base_package

def redraw_props():
    for area in bpy.context.window.screen.areas:
        if area.type == 'TOPBAR':
            area.tag_redraw()
    for area in bpy.context.screen.areas:
        if area.type == 'PROPERTIES':
            area.tag_redraw()
            
def has_data():
    return 'scene_workspaces' in bpy.data.scenes[bpy.context.scene.name]

def get_scene_workspaces():
    if has_data():
        return bpy.data.scenes[bpy.context.scene.name]['scene_workspaces']
    else:
        return []
    
def get_use_global():
    return bpy.context.preferences.addons[base_package].preferences.use_global

def set_scene_workspaces(workspaces):
    bpy.data.scenes[bpy.context.scene.name]['scene_workspaces'] = workspaces
    redraw_props()

def init_data():
    workspaces = []
    for w in bpy.data.workspaces:
        workspaces.append(w.name)
    set_scene_workspaces(workspaces)

def draw_workspace_ops(layout, i, text=False, name=None):
    layout.separator()
    rename = layout.operator(
        "wbs.rename", text="Rename" if text else "", icon="TEXT")
    rename.current_name = name if name else bpy.context.window.workspace.name
    rename.new_name = rename.current_name
    layout.separator()
    top = layout.operator("wbs.move", text="Reorder to Front" if text else "",
                          icon='TRIA_LEFT_BAR' if text else 'TRIA_UP_BAR')
    top.index = i
    top.top = True
    up = layout.operator("wbs.move", text="Move Left" if text else "",
                         icon='TRIA_LEFT' if text else 'TRIA_UP')
    up.index = i
    up.up = 1
    down = layout.operator("wbs.move", text="Move Right" if text else "",
                           icon='TRIA_RIGHT' if text else 'TRIA_DOWN')
    down.index = i
    down.up = -1
    bottom = layout.operator("wbs.move", text="Reorder to Back" if text else "",
                             icon='TRIA_RIGHT_BAR' if text else 'TRIA_DOWN_BAR')
    bottom.index = i
    bottom.top = False
    layout.separator()
    remove = layout.operator(
        "wbs.remove", text="Unlink workspace from scene" if text else "", icon='X')
    remove.index = i

def draw_workspace_menu(self, context):
    layout = self.layout
    use_global = get_use_global()
    if not use_global and has_data():
        layout.separator()
        draw_workspace_ops(layout, get_scene_workspaces().index(
            context.window.workspace.name), True)