"""Image picker widget for macro image selection."""

import tkinter as tk
from tkinter import filedialog
from utils.image_converter import copy_image_to_appdata, create_preview


class ImagePicker(tk.Frame):
    """Widget for selecting and previewing a macro image."""

    def __init__(self, parent, on_change=None):
        super().__init__(parent, bg="#2D2D3D")
        self.on_change = on_change
        self.image_path = None
        self._preview = None

        self._build_ui()

    def _build_ui(self):
        tk.Label(self, text="Routine Image:", bg="#2D2D3D", fg="white",
                 font=("Segoe UI", 9, "bold")).pack(anchor="w", padx=8, pady=(8, 2))

        self.preview_label = tk.Label(self, bg="#1E1E2E", width=128, height=128,
                                       relief="sunken", borderwidth=1)
        self.preview_label.pack(padx=8, pady=4)

        btn_frame = tk.Frame(self, bg="#2D2D3D")
        btn_frame.pack(fill="x", padx=8, pady=4)

        tk.Button(btn_frame, text="Choose Image", bg="#3D3D5C", fg="white",
                  font=("Segoe UI", 8), relief="flat",
                  command=self._choose_image).pack(side="left", fill="x", expand=True, padx=2)
        tk.Button(btn_frame, text="Clear", bg="#7F8C8D", fg="white",
                  font=("Segoe UI", 8), relief="flat",
                  command=self._clear_image).pack(side="left", padx=2)

    def set_image(self, path):
        self.image_path = path
        if path:
            try:
                self._preview = create_preview(path)
                self.preview_label.config(image=self._preview, text="")
            except Exception:
                self.preview_label.config(image="", text="Error loading image",
                                           fg="#FF4444")
        else:
            self._preview = None
            self.preview_label.config(image="", text="No image", fg="#666666")

    def _choose_image(self):
        path = filedialog.askopenfilename(
            title="Select Routine Image",
            filetypes=[("Images", "*.png *.jpg *.jpeg *.bmp *.gif"), ("All", "*.*")],
        )
        if path:
            saved = copy_image_to_appdata(path)
            self.image_path = saved
            self.set_image(saved)
            if self.on_change:
                self.on_change(saved)

    def _clear_image(self):
        self.image_path = None
        self.set_image(None)
        if self.on_change:
            self.on_change(None)