import os
import bpy
from .. import __name__ as base_package

def already_present(self, prefs, path, report=True):
    for p in prefs.projects:
        if p.path == path:
            if report:
                self.report(
                    {'WARNING'}, f'Current file is already in the templates list as "{p.name}".')
            return True
    return False

def name_from_path(path):
    if path:
        return os.path.splitext(os.path.basename(path))[0]
    else:
        return ""

def on_path_update(self, context):
    if not self.name and self.path:
        self.name = name_from_path(self.path)
        context.preferences.is_dirty = True
    if self.path and self.path.startswith('//'):
        self.path = bpy.path.abspath(self.path)
        context.preferences.is_dirty = True

def pref():
    return bpy.context.preferences.addons[base_package].preferences
        
def has_templates():
    return len(pref().projects) > 0

def draw_file_new_templates(self, context):
    layout = self.layout
    if has_templates():
        layout.separator()
    draw_templates(layout, context)

def draw_templates(layout, context, splash_mode=False):
    prefs = pref()
    for i in range(min(5 if len(prefs.projects) <= 5 else 4, len(prefs.projects)) if splash_mode else len(prefs.projects)):
        project = prefs.projects[i]
        if project.path:
            layout.operator(
                "wm.read_homefile", text=(project.name if project.name else name_from_path(project.path)), icon="FILE_NEW" if splash_mode else "NONE").filepath = project.path
    if splash_mode and len(prefs.projects) > 5:
        layout.menu("CT_MT_more_templates", text="More...", icon="FILE_NEW")
    if not splash_mode and prefs.start_from and context.area.type == 'TOPBAR':
        layout.separator()
        layout.operator("ct.start_from", icon="FILE_FOLDER")

def draw_file_default_operators(self, context):
    layout = self.layout
    layout.separator()
    layout.operator("ct.open_preferences",
                    text="Manage templates")
    layout.operator("ct.add_templates_from_folder",
                    text="Add from folder", icon="ADD")
    layout.operator("ct.clear", text="Clear current templates", icon="TRASH")
    layout.separator()
    layout.operator("ct.import_templates",
                    text="Import templates", icon="IMPORT")
    layout.operator("ct.export_templates",
                    text="Export templates", icon="EXPORT")
    layout.separator()
    layout.operator("ct.select_template_popup",
                    text="Select new template")
    if bpy.data.filepath != "":
        layout.operator("ct.add_template_popup",
                        text="Use current file as template")

def draw_ws_menu_add(self, context):
    layout = self.layout
    if has_templates():
        layout.separator()
        layout.menu("CT_MT_workspace_add", text="Add from Custom Templates", icon="WORKSPACE")