"""
复用确认对话框
显示任务差异并让用户确认是否复用
"""

import tkinter as tk
from tkinter import ttk
from typing import List, Callable, Optional
from history.task_features import TaskDifference


def show_reuse_confirm_dialog(
    parent: tk.Tk,
    task_summary: str,
    timestamp: str,
    similarity_score: float,
    differences: List[TaskDifference],
    on_confirm: Callable,
    on_reject: Callable
):
    """
    显示复用确认对话框
    
    Args:
        parent: 父窗口
        task_summary: 任务摘要
        timestamp: 任务时间
        similarity_score: 相似度分数
        differences: 差异列表
        on_confirm: 确认回调
        on_reject: 拒绝回调
    """
    dialog = tk.Toplevel(parent)
    dialog.title("发现相似任务")
    dialog.geometry("700x600")
    dialog.resizable(False, False)
    dialog.configure(bg='#2b2b2b')
    
    # 居中显示
    dialog.transient(parent)
    dialog.grab_set()
    
    # 主容器
    main_frame = tk.Frame(dialog, bg='#2b2b2b')
    main_frame.pack(fill=tk.BOTH, expand=True, padx=20, pady=20)
    
    # 标题
    title_label = tk.Label(
        main_frame,
        text="🔍 发现相似的成功任务",
        font=('Microsoft YaHei UI', 14, 'bold'),
        bg='#2b2b2b',
        fg='#ffffff'
    )
    title_label.pack(pady=(0, 15))
    
    # 任务信息框
    info_frame = tk.Frame(main_frame, bg='#3c3c3c', relief=tk.FLAT, bd=0)
    info_frame.pack(fill=tk.X, pady=(0, 15))
    
    # 任务摘要
    task_label = tk.Label(
        info_frame,
        text=f"任务: {task_summary}",
        font=('Microsoft YaHei UI', 10),
        bg='#3c3c3c',
        fg='#e0e0e0',
        anchor='w',
        justify='left'
    )
    task_label.pack(fill=tk.X, padx=15, pady=(10, 5))
    
    # 时间
    time_label = tk.Label(
        info_frame,
        text=f"时间: {timestamp}",
        font=('Microsoft YaHei UI', 9),
        bg='#3c3c3c',
        fg='#a0a0a0',
        anchor='w'
    )
    time_label.pack(fill=tk.X, padx=15, pady=(0, 5))
    
    # 相似度
    similarity_percent = int(similarity_score * 100)
    similarity_color = '#4caf50' if similarity_score >= 0.8 else '#ff9800' if similarity_score >= 0.6 else '#f44336'
    
    similarity_label = tk.Label(
        info_frame,
        text=f"相似度: {similarity_percent}%",
        font=('Microsoft YaHei UI', 9, 'bold'),
        bg='#3c3c3c',
        fg=similarity_color,
        anchor='w'
    )
    similarity_label.pack(fill=tk.X, padx=15, pady=(0, 10))
    
    # 差异部分
    if differences:
        # 统计关键差异
        critical_count = sum(1 for d in differences if d.importance == 'critical')
        high_count = sum(1 for d in differences if d.importance == 'high')
        
        # 差异标题
        diff_title_frame = tk.Frame(main_frame, bg='#2b2b2b')
        diff_title_frame.pack(fill=tk.X, pady=(0, 10))
        
        diff_title = tk.Label(
            diff_title_frame,
            text=f"⚠️ 发现 {len(differences)} 处差异",
            font=('Microsoft YaHei UI', 11, 'bold'),
            bg='#2b2b2b',
            fg='#ff9800'
        )
        diff_title.pack(side=tk.LEFT)
        
        if critical_count > 0:
            critical_badge = tk.Label(
                diff_title_frame,
                text=f"{critical_count} 关键",
                font=('Microsoft YaHei UI', 9),
                bg='#f44336',
                fg='#ffffff',
                padx=8,
                pady=2
            )
            critical_badge.pack(side=tk.LEFT, padx=(10, 5))
        
        if high_count > 0:
            high_badge = tk.Label(
                diff_title_frame,
                text=f"{high_count} 重要",
                font=('Microsoft YaHei UI', 9),
                bg='#ff9800',
                fg='#ffffff',
                padx=8,
                pady=2
            )
            high_badge.pack(side=tk.LEFT)
        
        # 差异列表（可滚动）
        diff_container = tk.Frame(main_frame, bg='#2b2b2b')
        diff_container.pack(fill=tk.BOTH, expand=True, pady=(0, 15))
        
        # 创建 Canvas 和 Scrollbar
        canvas = tk.Canvas(diff_container, bg='#2b2b2b', highlightthickness=0)
        scrollbar = ttk.Scrollbar(diff_container, orient="vertical", command=canvas.yview)
        scrollable_frame = tk.Frame(canvas, bg='#2b2b2b')
        
        scrollable_frame.bind(
            "<Configure>",
            lambda e: canvas.configure(scrollregion=canvas.bbox("all"))
        )
        
        canvas.create_window((0, 0), window=scrollable_frame, anchor="nw")
        canvas.configure(yscrollcommand=scrollbar.set)
        
        # 显示差异
        importance_colors = {
            'critical': '#f44336',
            'high': '#ff9800',
            'medium': '#2196f3',
            'low': '#9e9e9e'
        }
        
        importance_labels = {
            'critical': '关键',
            'high': '重要',
            'medium': '一般',
            'low': '次要'
        }
        
        for i, diff in enumerate(differences):
            diff_frame = tk.Frame(scrollable_frame, bg='#3c3c3c', relief=tk.FLAT, bd=0)
            diff_frame.pack(fill=tk.X, pady=(0, 8), padx=2)
            
            # 差异标题行
            header_frame = tk.Frame(diff_frame, bg='#3c3c3c')
            header_frame.pack(fill=tk.X, padx=10, pady=(8, 5))
            
            category_label = tk.Label(
                header_frame,
                text=diff.category,
                font=('Microsoft YaHei UI', 9, 'bold'),
                bg='#3c3c3c',
                fg='#ffffff'
            )
            category_label.pack(side=tk.LEFT)
            
            importance_badge = tk.Label(
                header_frame,
                text=importance_labels[diff.importance],
                font=('Microsoft YaHei UI', 8),
                bg=importance_colors[diff.importance],
                fg='#ffffff',
                padx=6,
                pady=1
            )
            importance_badge.pack(side=tk.LEFT, padx=(8, 0))
            
            # 当前值
            current_frame = tk.Frame(diff_frame, bg='#3c3c3c')
            current_frame.pack(fill=tk.X, padx=10, pady=(0, 3))
            
            current_title = tk.Label(
                current_frame,
                text="当前任务:",
                font=('Microsoft YaHei UI', 8),
                bg='#3c3c3c',
                fg='#a0a0a0'
            )
            current_title.pack(side=tk.LEFT)
            
            current_value = tk.Label(
                current_frame,
                text=diff.current_value,
                font=('Microsoft YaHei UI', 9),
                bg='#3c3c3c',
                fg='#4caf50',
                wraplength=500,
                justify='left'
            )
            current_value.pack(side=tk.LEFT, padx=(5, 0))
            
            # 历史值
            history_frame = tk.Frame(diff_frame, bg='#3c3c3c')
            history_frame.pack(fill=tk.X, padx=10, pady=(0, 8))
            
            history_title = tk.Label(
                history_frame,
                text="历史任务:",
                font=('Microsoft YaHei UI', 8),
                bg='#3c3c3c',
                fg='#a0a0a0'
            )
            history_title.pack(side=tk.LEFT)
            
            history_value = tk.Label(
                history_frame,
                text=diff.history_value,
                font=('Microsoft YaHei UI', 9),
                bg='#3c3c3c',
                fg='#ff9800',
                wraplength=500,
                justify='left'
            )
            history_value.pack(side=tk.LEFT, padx=(5, 0))
        
        canvas.pack(side="left", fill="both", expand=True)
        scrollbar.pack(side="right", fill="y")
    else:
        # 无差异
        no_diff_label = tk.Label(
            main_frame,
            text="✅ 未发现关键差异",
            font=('Microsoft YaHei UI', 10),
            bg='#2b2b2b',
            fg='#4caf50'
        )
        no_diff_label.pack(pady=20)
    
    # 提示信息
    hint_label = tk.Label(
        main_frame,
        text="是否直接复用该任务的代码？\n(选择「生成新代码」将根据当前需求重新生成)",
        font=('Microsoft YaHei UI', 9),
        bg='#2b2b2b',
        fg='#a0a0a0',
        justify='center'
    )
    hint_label.pack(pady=(10, 15))
    
    # 按钮区域
    button_frame = tk.Frame(main_frame, bg='#2b2b2b')
    button_frame.pack(fill=tk.X)
    
    def on_confirm_click():
        dialog.destroy()
        on_confirm()
    
    def on_reject_click():
        dialog.destroy()
        on_reject()
    
    # 复用按钮
    confirm_btn = tk.Button(
        button_frame,
        text="✓ 复用代码",
        font=('Microsoft YaHei UI', 10, 'bold'),
        bg='#4caf50',
        fg='#ffffff',
        activebackground='#45a049',
        activeforeground='#ffffff',
        relief=tk.FLAT,
        cursor='hand2',
        command=on_confirm_click,
        padx=30,
        pady=10
    )
    confirm_btn.pack(side=tk.LEFT, expand=True, fill=tk.X, padx=(0, 5))
    
    # 拒绝按钮
    reject_btn = tk.Button(
        button_frame,
        text="✗ 生成新代码",
        font=('Microsoft YaHei UI', 10),
        bg='#555555',
        fg='#ffffff',
        activebackground='#666666',
        activeforeground='#ffffff',
        relief=tk.FLAT,
        cursor='hand2',
        command=on_reject_click,
        padx=30,
        pady=10
    )
    reject_btn.pack(side=tk.LEFT, expand=True, fill=tk.X, padx=(5, 0))
    
    # 等待对话框关闭
    dialog.wait_window()