"""
邮箱配置界面
用于设置SMTP发送邮箱
"""
import tkinter as tk
from tkinter import ttk, messagebox
from email_config import DEFAULT_SENDER_CONFIG, EMAIL_HELP_TEXT
import json
import os

class EmailConfigWindow:
    """邮箱配置窗口"""
    
    def __init__(self, parent, data_manager):
        self.parent = parent
        self.data_manager = data_manager
        self.config_file = "email_config.json"
        
        # 创建配置窗口
        self.window = tk.Toplevel(parent)
        self.window.title("邮箱配置")
        self.window.geometry("500x400")
        self.window.resizable(False, False)
        self.window.grab_set()  # 模态窗口
        
        self.create_widgets()
        self.load_config()
    
    def create_widgets(self):
        """创建界面组件"""
        main_frame = ttk.Frame(self.window, padding="20")
        main_frame.grid(row=0, column=0, sticky=(tk.W, tk.E, tk.N, tk.S))
        
        # 标题
        title_label = ttk.Label(main_frame, text="邮箱配置", 
                               font=("Arial", 16, "bold"))
        title_label.grid(row=0, column=0, columnspan=2, pady=10)
        
        # 说明
        info_label = ttk.Label(main_frame, 
                              text="配置用于发送验证码的邮箱（建议使用QQ邮箱）",
                              font=("Arial", 10))
        info_label.grid(row=1, column=0, columnspan=2, pady=5)
        
        # 发送邮箱
        ttk.Label(main_frame, text="发送邮箱:").grid(row=2, column=0, sticky=tk.W, pady=5)
        self.email_entry = ttk.Entry(main_frame, width=30)
        self.email_entry.grid(row=2, column=1, padx=10, pady=5)
        
        # 授权码
        ttk.Label(main_frame, text="授权码:").grid(row=3, column=0, sticky=tk.W, pady=5)
        self.password_entry = ttk.Entry(main_frame, width=30, show="*")
        self.password_entry.grid(row=3, column=1, padx=10, pady=5)
        
        # 发送者名称
        ttk.Label(main_frame, text="发送者名称:").grid(row=4, column=0, sticky=tk.W, pady=5)
        self.name_entry = ttk.Entry(main_frame, width=30)
        self.name_entry.grid(row=4, column=1, padx=10, pady=5)
        
        # 帮助按钮
        help_btn = ttk.Button(main_frame, text="获取授权码帮助", 
                             command=self.show_help)
        help_btn.grid(row=5, column=0, columnspan=2, pady=10)
        
        # 测试按钮
        test_btn = ttk.Button(main_frame, text="测试邮箱配置", 
                             command=self.test_email)
        test_btn.grid(row=6, column=0, columnspan=2, pady=5)
        
        # 按钮框架
        button_frame = ttk.Frame(main_frame)
        button_frame.grid(row=7, column=0, columnspan=2, pady=20)
        
        # 保存按钮
        save_btn = ttk.Button(button_frame, text="保存配置", 
                             command=self.save_config)
        save_btn.grid(row=0, column=0, padx=10)
        
        # 取消按钮
        cancel_btn = ttk.Button(button_frame, text="取消", 
                               command=self.window.destroy)
        cancel_btn.grid(row=0, column=1, padx=10)
    
    def load_config(self):
        """加载配置"""
        try:
            if os.path.exists(self.config_file):
                with open(self.config_file, 'r', encoding='utf-8') as f:
                    config = json.load(f)
                    self.email_entry.insert(0, config.get("email", ""))
                    self.password_entry.insert(0, config.get("password", ""))
                    self.name_entry.insert(0, config.get("name", "数学学习软件"))
            else:
                # 使用默认配置
                self.name_entry.insert(0, DEFAULT_SENDER_CONFIG["name"])
        except Exception as e:
            print(f"加载配置失败: {e}")
    
    def save_config(self):
        """保存配置"""
        email = self.email_entry.get().strip()
        password = self.password_entry.get().strip()
        name = self.name_entry.get().strip()
        
        if not email or not password:
            messagebox.showerror("错误", "请填写邮箱和授权码")
            return
        
        if "@" not in email:
            messagebox.showerror("错误", "请输入有效的邮箱地址")
            return
        
        if not name:
            name = "数学学习软件"
        
        config = {
            "email": email,
            "password": password,
            "name": name
        }
        
        try:
            # 保存到文件
            with open(self.config_file, 'w', encoding='utf-8') as f:
                json.dump(config, f, ensure_ascii=False, indent=2)
            
            # 更新数据管理器配置
            self.data_manager.sender_config = config
            
            messagebox.showinfo("成功", "邮箱配置保存成功！")
            self.window.destroy()
        except Exception as e:
            messagebox.showerror("错误", f"保存配置失败: {e}")
    
    def test_email(self):
        """测试邮箱配置"""
        email = self.email_entry.get().strip()
        password = self.password_entry.get().strip()
        name = self.name_entry.get().strip()
        
        if not email or not password:
            messagebox.showerror("错误", "请填写邮箱和授权码")
            return
        
        # 临时更新配置
        old_config = self.data_manager.sender_config.copy()
        self.data_manager.sender_config = {
            "email": email,
            "password": password,
            "name": name or "数学学习软件"
        }
        
        # 发送测试邮件
        test_code = "123456"
        success = self.data_manager.send_verification_email(email, test_code)
        
        # 恢复原配置
        self.data_manager.sender_config = old_config
        
        if success:
            messagebox.showinfo("测试成功", f"测试邮件已发送到 {email}")
        else:
            messagebox.showerror("测试失败", "邮件发送失败，请检查配置")
    
    def show_help(self):
        """显示帮助信息"""
        help_window = tk.Toplevel(self.window)
        help_window.title("授权码获取帮助")
        help_window.geometry("600x500")
        help_window.resizable(False, False)
        
        text_widget = tk.Text(help_window, wrap=tk.WORD, padx=10, pady=10)
        text_widget.pack(fill=tk.BOTH, expand=True)
        text_widget.insert(tk.END, EMAIL_HELP_TEXT)
        text_widget.config(state=tk.DISABLED)
        
        # 关闭按钮
        close_btn = ttk.Button(help_window, text="关闭", 
                              command=help_window.destroy)
        close_btn.pack(pady=10)