#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Production ID 输入控件

多行文本输入框，用于输入 Production ID 列表。
"""

import tkinter as tk
from tkinter import ttk, font


class ProductionIdInput(ttk.Frame):
    """Production ID 输入控件"""

    def __init__(self, parent, placeholder="每行输入一个 Production ID", **kwargs):
        super().__init__(parent, **kwargs)
        self.placeholder = placeholder

        # 创建文本框和滚动条
        self.text_widget = tk.Text(self, wrap=tk.WORD, padx=5, pady=5)
        self.scrollbar = ttk.Scrollbar(self, orient=tk.VERTICAL, command=self.text_widget.yview)
        self.text_widget.configure(yscrollcommand=self.scrollbar.set)

        # 布局
        self.text_widget.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)
        self.scrollbar.pack(side=tk.RIGHT, fill=tk.Y)

        # 绑定事件
        self.text_widget.bind("<FocusIn>", self._on_focus_in)
        self.text_widget.bind("<FocusOut>", self._on_focus_out)

        # 显示占位符
        self._show_placeholder()

    def _on_focus_in(self, event):
        """获得焦点时隐藏占位符"""
        if self.text_widget.get("1.0", "end-1c") == self.placeholder:
            self.text_widget.delete("1.0", tk.END)

    def _on_focus_out(self, event):
        """失去焦点时显示占位符"""
        content = self.text_widget.get("1.0", "end-1c")
        if not content:
            self._show_placeholder()

    def _show_placeholder(self):
        """显示占位符"""
        self.text_widget.delete("1.0", tk.END)
        self.text_widget.insert("1.0", self.placeholder)
        self.text_widget.configure(foreground="gray")

    def _hide_placeholder(self):
        """隐藏占位符"""
        if self.text_widget.get("1.0", "end-1c") == self.placeholder:
            self.text_widget.delete("1.0", tk.END)
            self.text_widget.configure(foreground="black")

    def get(self) -> list[str]:
        """获取 Production ID 列表"""
        self._hide_placeholder()
        content = self.text_widget.get("1.0", "end-1c").strip()
        return [line.strip() for line in content.split("\n") if line.strip()]

    def set(self, production_ids: list[str]):
        """设置 Production ID 列表"""
        self.text_widget.delete("1.0", tk.END)
        if production_ids:
            self.text_widget.insert("1.0", "\n".join(production_ids))
            self.text_widget.configure(foreground="black")
        else:
            self._show_placeholder()

    def clear(self):
        """清空内容"""
        self.text_widget.delete("1.0", tk.END)
        self._show_placeholder()

    def append(self, production_ids: list[str]):
        """追加 Production ID 列表"""
        self._hide_placeholder()
        if production_ids:
            current_content = self.text_widget.get("1.0", "end-1c")
            if current_content.strip():
                self.text_widget.insert(tk.END, "\n" + "\n".join(production_ids))
            else:
                self.text_widget.insert("1.0", "\n".join(production_ids))

    def apply_font(self, font_family: str, font_size: int):
        """应用字体设置"""
        font_spec = font.Font(family=font_family, size=font_size)
        self.text_widget.configure(font=font_spec)