import bpy
from bpy.props import IntProperty
from . import page_manager
from .guides import rebuild_guides


class EDITORIALGP_OT_create_document(bpy.types.Operator):
    bl_idname = "editorial_gp.create_document"
    bl_label = "Create Editorial Document"
    bl_options = {'REGISTER', 'UNDO'}

    page_count: IntProperty(name="Page Count", default=4, min=1, max=100)

    def invoke(self, context, event):
        return context.window_manager.invoke_props_dialog(self)

    def execute(self, context):
        scene = context.scene
        existing = page_manager.page_collections(scene)
        if existing:
            self.report({'ERROR'}, "An editorial document already exists in the scene")
            return {'CANCELLED'}
        page_manager.ensure_root(scene)
        page_manager.ensure_guides_collection(scene)
        for _ in range(self.page_count):
            page_manager.create_page(scene)
        scene.editorial_gp.initialized = True
        scene.editorial_gp.current_page_index = 0
        page_manager.set_active_page(scene, 0, context.view_layer)
        rebuild_guides(scene)
        self.report({'INFO'}, f"Document created with {self.page_count} pages")
        return {'FINISHED'}


class EDITORIALGP_OT_apply_document_settings(bpy.types.Operator):
    bl_idname = "editorial_gp.apply_document_settings"
    bl_label = "Apply Format and Guides"
    bl_options = {'REGISTER', 'UNDO'}

    def execute(self, context):
        rebuild_guides(context.scene)
        self.report({'INFO'}, "Format and guides updated")
        return {'FINISHED'}


classes = (EDITORIALGP_OT_create_document, EDITORIALGP_OT_apply_document_settings)


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


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