import tkinter as tk
from tkinter import ttk
import pyperclip
from tkinter import messagebox
from datetime import datetime
import pytz

def create_ui(parent, run_callback):
    """创建时间戳转换前端界面：时间戳转文本和文本转时间戳"""
    frame = ttk.Frame(parent)
    frame.grid(row=0, column=0, sticky=(tk.W, tk.E, tk.N, tk.S))
    frame.columnconfigure(1, weight=1)
    frame.rowconfigure(0, weight=1)
    frame.rowconfigure(2, weight=1)

    # 时区选项
    timezones = ["Asia/Shanghai", "UTC", "America/New_York", "Europe/London", "Australia/Sydney"]

    # 上半部分：时间戳转文本
    timestamp_frame = ttk.LabelFrame(frame, text="时间戳转文本", padding=5)
    timestamp_frame.grid(row=0, column=0, columnspan=2, sticky=(tk.W, tk.E, tk.N), pady=5)
    timestamp_frame.columnconfigure(1, weight=1)

    ttk.Label(timestamp_frame, text="时间戳：").grid(row=0, column=0, sticky=tk.W, pady=2)
    timestamp_entry = ttk.Entry(timestamp_frame)
    timestamp_entry.insert(0, str(int(datetime.now().timestamp())))  # 默认当前时间戳
    timestamp_entry.grid(row=0, column=1, sticky=(tk.W, tk.E), pady=2)

    ttk.Label(timestamp_frame, text="时区：").grid(row=1, column=0, sticky=tk.W, pady=2)
    timestamp_tz_var = tk.StringVar(value="Asia/Shanghai")
    ttk.OptionMenu(timestamp_frame, timestamp_tz_var, "Asia/Shanghai", *timezones).grid(row=1, column=1, sticky=tk.W, pady=2)

    timestamp_result = tk.Text(timestamp_frame, height=1, width=30, state="disabled")
    timestamp_result.grid(row=2, column=1, sticky=(tk.W, tk.E), pady=2)
    ttk.Label(timestamp_frame, text="结果：").grid(row=2, column=0, sticky=tk.W, pady=2)

    def copy_timestamp_result(event):
        output = timestamp_result.get("1.0", tk.END).strip()
        if output:
            pyperclip.copy(output)
            messagebox.showinfo("提示", "结果已复制到剪贴板")
    timestamp_result.bind("<Button-1>", copy_timestamp_result)

    def convert_timestamp():
        timestamp = timestamp_entry.get().strip()
        if not timestamp:
            messagebox.showerror("错误", "请输入时间戳")
            return
        result = run_callback(["timestamp_to_text", timestamp, timestamp_tz_var.get()])
        timestamp_result.configure(state="normal")
        timestamp_result.delete("1.0", tk.END)
        timestamp_result.insert("1.0", result[0] if result else "无结果")
        timestamp_result.configure(state="disabled")

    ttk.Button(timestamp_frame, text="转换", command=convert_timestamp).grid(row=3, column=0, columnspan=2, pady=5)

    # 分割线
    ttk.Separator(frame, orient=tk.HORIZONTAL).grid(row=1, column=0, columnspan=2, sticky=(tk.W, tk.E), pady=10)

    # 下半部分：文本转时间戳
    text_frame = ttk.LabelFrame(frame, text="文本转时间戳", padding=5)
    text_frame.grid(row=2, column=0, columnspan=2, sticky=(tk.W, tk.E, tk.N), pady=5)
    text_frame.columnconfigure(1, weight=1)

    ttk.Label(text_frame, text="日期时间：").grid(row=0, column=0, sticky=tk.W, pady=2)
    text_entry = ttk.Entry(text_frame)
    text_entry.insert(0, "2025-06-05 16:29:11")  # 默认时间
    text_entry.grid(row=0, column=1, sticky=(tk.W, tk.E), pady=2)

    ttk.Label(text_frame, text="时区：").grid(row=1, column=0, sticky=tk.W, pady=2)
    text_tz_var = tk.StringVar(value="Asia/Shanghai")
    ttk.OptionMenu(text_frame, text_tz_var, "Asia/Shanghai", *timezones).grid(row=1, column=1, sticky=tk.W, pady=2)

    text_result = tk.Text(text_frame, height=1, width=30, state="disabled")
    text_result.grid(row=2, column=1, sticky=(tk.W, tk.E), pady=2)
    ttk.Label(text_frame, text="结果：").grid(row=2, column=0, sticky=tk.W, pady=2)

    def copy_text_result(event):
        output = text_result.get("1.0", tk.END).strip()
        if output:
            pyperclip.copy(output)
            messagebox.showinfo("提示", "结果已复制到剪贴板")
    text_result.bind("<Button-1>", copy_text_result)

    def convert_text():
        text = text_entry.get().strip()
        if not text:
            messagebox.showerror("错误", "请输入日期时间")
            return
        result = run_callback(["text_to_timestamp", text, text_tz_var.get()])
        text_result.configure(state="normal")
        text_result.delete("1.0", tk.END)
        text_result.insert("1.0", result[0] if result else "无结果")
        text_result.configure(state="disabled")

    ttk.Button(text_frame, text="转换", command=convert_text).grid(row=3, column=0, columnspan=2, pady=5)

    return frame