"""
座舱触屏示能性设计评估框架
基于 MDPI Applied Sciences 2026 论文

核心维度:
1. 物理示能 - 界面是否暗示可操作性
2. 认知示能 - 操作意图是否清晰
3. 感知示能 - 反馈是否即时
4. 安全示能 - 是否减少分心
"""

from enum import Enum
from dataclasses import dataclass
from typing import List, Tuple

class AffordanceDimension(Enum):
    PHYSICAL = "物理示能"
    COGNITIVE = "认知示能"
    PERCEPTUAL = "感知示能"
    SAFETY = "安全示能"

@dataclass
class InterfaceElement:
    """界面元素评估"""
    name: str
    element_type: str  # button, slider, menu, gesture
    dimensions: dict  # {维度: 评分1-10}
    
    def get_total_score(self) -> float:
        """综合评分"""
        return sum(self.dimensions.values()) / len(self.dimensions)
    
    def get_safety_rating(self) -> str:
        """安全等级"""
        score = self.dimensions.get(AffordanceDimension.SAFETY.value, 0)
        if score >= 8:
            return "✅ 安全"
        elif score >= 5:
            return "⚠️ 中等风险"
        else:
            return "❌ 高风险"


class CabinInterfaceEvaluator:
    """
    座舱界面安全评估器
    
    基于4维示能性框架评估交互方案
    """
    
    # 评估标准
    CRITERIA = {
        AffordanceDimension.PHYSICAL.value: {
            'shape_hint': '形状是否暗示操作方式',
            'size': '尺寸是否足够（>15mm触控区）',
            'spacing': '间距是否充足（>10mm）',
            'texture': '纹理是否提供触觉线索',
        },
        AffordanceDimension.COGNITIVE.value: {
            'label_clarity': '标签是否清晰',
            'icon_recognizability': '图标是否可识别',
            'menu_depth': '菜单层级是否≤2层',
            'operation_steps': '操作步骤是否≤3步',
        },
        AffordanceDimension.PERCEPTUAL.value: {
            'response_time': '响应是否<100ms',
            'visual_feedback': '是否有视觉反馈',
            'haptic_feedback': '是否有触觉反馈',
            'audio_feedback': '是否有声音反馈',
        },
        AffordanceDimension.SAFETY.value: {
            'glance_time': '单次扫视是否<2秒',
            'total_time': '总操作时间是否<5秒',
            'error_rate': '误操作率是否<5%',
            'recoverability': '误操作是否可快速恢复',
        },
    }
    
    def evaluate_interface(self, elements: List[InterfaceElement]) -> dict:
        """
        评估座舱界面方案
        
        Returns:
            report: 评估报告
        """
        report = {
            'elements': [],
            'overall_safety': 0,
            'risk_factors': [],
            'recommendations': [],
        }
        
        total_safety = 0
        for elem in elements:
            elem_report = {
                'name': elem.name,
                'type': elem.element_type,
                'score': elem.get_total_score(),
                'safety': elem.get_safety_rating(),
                'dimensions': elem.dimensions,
            }
            report['elements'].append(elem_report)
            total_safety += elem.dimensions.get(
                AffordanceDimension.SAFETY.value, 0
            )
        
        report['overall_safety'] = total_safety / len(elements) if elements else 0
        
        # 生成建议
        if report['overall_safety'] < 5:
            report['risk_factors'].append('整体安全评分过低')
            report['recommendations'].append(
                '建议增加物理快捷按钮替代触屏操作'
            )
        
        for elem in report['elements']:
            if elem['dimensions'].get('glance_time', 10) < 5:
                report['risk_factors'].append(
                    f"{elem['name']}: 单次扫视时间过长"
                )
        
        return report


# 评估常见座舱交互方案
if __name__ == "__main__":
    evaluator = CabinInterfaceEvaluator()
    
    # 方案1: 纯触屏（Tesla风格）
    print("=" * 60)
    print("方案1: 纯触屏界面")
    touch_screen = [
        InterfaceElement(
            name="导航设置", element_type="menu",
            dimensions={
                "物理示能": 3, "认知示能": 4,
                "感知示能": 5, "安全示能": 2,
            }
        ),
        InterfaceElement(
            name="空调调节", element_type="slider",
            dimensions={
                "物理示能": 4, "认知示能": 5,
                "感知示能": 4, "安全示能": 3,
            }
        ),
    ]
    result1 = evaluator.evaluate_interface(touch_screen)
    print(f"  整体安全评分: {result1['overall_safety']:.1f}/10")
    for elem in result1['elements']:
        print(f"  {elem['name']}: {elem['score']:.1f}/10 - {elem['safety']}")
    print(f"  风险: {result1['risk_factors']}")
    
    # 方案2: 物理按钮+触屏混合（Dacia风格）
    print("\n方案2: 物理+触屏混合界面")
    hybrid = [
        InterfaceElement(
            name="空调物理按钮", element_type="button",
            dimensions={
                "物理示能": 9, "认知示能": 8,
                "感知示能": 7, "安全示能": 9,
            }
        ),
        InterfaceElement(
            name="导航触屏", element_type="menu",
            dimensions={
                "物理示能": 4, "认知示能": 5,
                "感知示能": 6, "安全示能": 4,
            }
        ),
    ]
    result2 = evaluator.evaluate_interface(hybrid)
    print(f"  整体安全评分: {result2['overall_safety']:.1f}/10")
    for elem in result2['elements']:
        print(f"  {elem['name']}: {elem['score']:.1f}/10 - {elem['safety']}")
    
    # 方案3: AR-HUD+语音（FORVIA HELLA风格）
    print("\n方案3: AR-HUD+语音界面")
    ar_hud = [
        InterfaceElement(
            name="AR导航", element_type="hud_overlay",
            dimensions={
                "物理示能": 7, "认知示能": 9,
                "感知示能": 9, "安全示能": 10,
            }
        ),
        InterfaceElement(
            name="语音控制", element_type="voice",
            dimensions={
                "物理示能": 8, "认知示能": 7,
                "感知示能": 8, "安全示能": 9,
            }
        ),
    ]
    result3 = evaluator.evaluate_interface(ar_hud)
    print(f"  整体安全评分: {result3['overall_safety']:.1f}/10")
    for elem in result3['elements']:
        print(f"  {elem['name']}: {elem['score']:.1f}/10 - {elem['safety']}")
    
    print("\n✅ 评估框架测试通过")