import ttkbootstrap as ttk
import tkinter
from tkinter import ttk
from pathlib import Path
from ttkbootstrap import Style
import sys
import os


def get_resource_path(relative_path):
    """
    获取资源文件的绝对路径（兼容开发环境和打包后）

    Args:
        relative_path: 相对路径，如 "assets/icons8_double_up_24px.png"

    Returns:
        str: 资源文件的绝对路径
    """
    try:
        # PyInstaller 打包后的临时文件夹路径
        base_path = sys._MEIPASS
    except AttributeError:
        # 开发环境：使用项目根目录
        # 当前文件: app/views/collapsing_frame.py
        # 项目根目录: app/views 的祖父目录
        current_file = os.path.abspath(__file__)
        views_dir = os.path.dirname(current_file)
        app_dir = os.path.dirname(views_dir)
        base_path = os.path.dirname(app_dir)

    return os.path.join(base_path, relative_path)


class CollapsingFrame(ttk.Frame):
    """
    A collapsible frame widget that opens and closes with a button click.
    """

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.columnconfigure(0, weight=1)
        self.cumulative_rows = 0
        p = Path(__file__).parent
        self.images = [
            tkinter.PhotoImage(
                name="open", file=get_resource_path("assets/icons8_double_up_24px.png")
            ),
            tkinter.PhotoImage(
                name="closed",
                file=get_resource_path("assets/icons8_double_right_24px.png"),
            ),
        ]

    def add(self, child, title="", style="primary.TButton", **kwargs):
        """Add a child to the collapsible frame

        :param ttk.Frame child: the child frame to add to the widget
        :param str title: the title appearing on the collapsible section header
        :param str style: the ttk style to apply to the collapsible section header
        """
        if child.winfo_class() != "TFrame":  # must be a frame
            return
        style_color = style.split(".")[0]
        frm = ttk.Frame(self, style=f"{style_color}.TFrame")
        frm.grid(row=self.cumulative_rows, column=0, sticky="ew")

        # header title
        lbl = ttk.Label(frm, text=title, style=f"{style_color}.Inverse.TLabel")
        if kwargs.get("textvariable"):
            lbl.configure(textvariable=kwargs.get("textvariable"))
        lbl.pack(side="left", fill="both", padx=10)

        # header toggle button
        btn = ttk.Button(
            frm,
            image="open",
            style=style,
            command=lambda c=child: self._toggle_open_close(child),
        )
        btn.pack(side="right")

        # assign toggle button to child so that it's accesible when toggling (need to change image)
        child.btn = btn
        child.grid(row=self.cumulative_rows + 1, column=0, sticky="news")

        # increment the row assignment
        self.cumulative_rows += 2

    def _toggle_open_close(self, child):
        """
        Open or close the section and change the toggle button image accordingly

        :param ttk.Frame child: the child element to add or remove from grid manager
        """
        if child.winfo_viewable():
            child.grid_remove()
            child.btn.configure(image="closed")
        else:
            child.grid()
            child.btn.configure(image="open")


# class Application(tkinter.Tk):

#     def __init__(self):
#         super().__init__()
#         self.title('Collapsing Frame')
#         # self.style = Style()

#         cf = CollapsingFrame(self)
#         cf.pack(fill='both')

#         # option group 1
#         group1 = ttk.Frame(cf, padding=10)
#         for x in range(5):
#             ttk.Checkbutton(group1, text=f'Option {x + 1}').pack(fill='x')
#         cf.add(group1, title='Option Group 1', style='primary.TButton')

#         # option group 2
#         group2 = ttk.Frame(cf, padding=10)
#         for x in range(5):
#             ttk.Checkbutton(group2, text=f'Option {x + 1}').pack(fill='x')
#         cf.add(group2, title='Option Group 2', style='danger.TButton')

# if __name__ == '__main__':
#     Application().mainloop()