"""
陪练场景模型
"""
from sqlalchemy import Column, Integer, String, Text, JSON, DECIMAL, Boolean, DateTime, ForeignKey
from sqlalchemy.sql import func
from app.models.base import Base


class PracticeScene(Base):
    """陪练场景模型"""
    __tablename__ = "practice_scenes"
    
    id = Column(Integer, primary_key=True, index=True, comment="场景ID")
    name = Column(String(200), nullable=False, comment="场景名称")
    description = Column(Text, comment="场景描述")
    type = Column(String(50), nullable=False, index=True, comment="场景类型: phone/face/complaint/after-sales/product-intro")
    difficulty = Column(String(50), nullable=False, index=True, comment="难度等级: beginner/junior/intermediate/senior/expert")
    status = Column(String(20), default="active", index=True, comment="状态: active/inactive")
    background = Column(Text, comment="场景背景设定")
    ai_role = Column(Text, comment="AI角色描述")
    objectives = Column(JSON, comment="练习目标数组")
    keywords = Column(JSON, comment="关键词数组")
    duration = Column(Integer, default=10, comment="预计时长（分钟）")
    usage_count = Column(Integer, default=0, comment="使用次数")
    rating = Column(DECIMAL(3, 1), default=0.0, comment="评分")
    
    # 审计字段
    created_by = Column(Integer, ForeignKey("users.id", ondelete="SET NULL"), comment="创建人ID")
    updated_by = Column(Integer, ForeignKey("users.id", ondelete="SET NULL"), comment="更新人ID")
    created_at = Column(DateTime, server_default=func.now(), comment="创建时间")
    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now(), comment="更新时间")
    
    # 软删除字段
    is_deleted = Column(Boolean, default=False, index=True, comment="是否删除")
    deleted_at = Column(DateTime, comment="删除时间")
    
    def __repr__(self):
        return f"<PracticeScene(id={self.id}, name='{self.name}', type='{self.type}', difficulty='{self.difficulty}')>"


class PracticeSession(Base):
    """陪练会话模型"""
    __tablename__ = "practice_sessions"
    
    id = Column(Integer, primary_key=True, index=True, comment="会话ID")
    session_id = Column(String(50), unique=True, nullable=False, index=True, comment="会话唯一标识")
    user_id = Column(Integer, ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True, comment="学员ID")
    scene_id = Column(Integer, ForeignKey("practice_scenes.id", ondelete="SET NULL"), comment="场景ID")
    scene_name = Column(String(200), comment="场景名称")
    scene_type = Column(String(50), comment="场景类型")
    conversation_id = Column(String(100), comment="Coze对话ID")
    
    # 会话时间信息
    start_time = Column(DateTime, nullable=False, index=True, comment="开始时间")
    end_time = Column(DateTime, comment="结束时间")
    duration_seconds = Column(Integer, default=0, comment="时长（秒）")
    turns = Column(Integer, default=0, comment="对话轮次")
    status = Column(String(20), default="in_progress", index=True, comment="状态: in_progress/completed/canceled")
    
    # 审计字段
    created_at = Column(DateTime, server_default=func.now(), comment="创建时间")
    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now(), comment="更新时间")
    is_deleted = Column(Boolean, default=False, comment="是否删除")
    
    def __repr__(self):
        return f"<PracticeSession(session_id='{self.session_id}', scene='{self.scene_name}', status='{self.status}')>"


class PracticeDialogue(Base):
    """陪练对话记录模型"""
    __tablename__ = "practice_dialogues"
    
    id = Column(Integer, primary_key=True, index=True, comment="对话ID")
    session_id = Column(String(50), nullable=False, index=True, comment="会话ID")
    speaker = Column(String(20), nullable=False, comment="说话人: user/ai")
    content = Column(Text, nullable=False, comment="对话内容")
    timestamp = Column(DateTime, nullable=False, comment="时间戳")
    sequence = Column(Integer, nullable=False, comment="顺序号")
    
    created_at = Column(DateTime, server_default=func.now(), comment="创建时间")
    
    def __repr__(self):
        return f"<PracticeDialogue(session_id='{self.session_id}', speaker='{self.speaker}', seq={self.sequence})>"


class PracticeReport(Base):
    """陪练分析报告模型"""
    __tablename__ = "practice_reports"
    
    id = Column(Integer, primary_key=True, index=True, comment="报告ID")
    session_id = Column(String(50), unique=True, nullable=False, index=True, comment="会话ID")
    
    # AI分析结果
    total_score = Column(Integer, comment="综合得分（0-100）")
    score_breakdown = Column(JSON, comment="分数细分")
    ability_dimensions = Column(JSON, comment="能力维度")
    dialogue_review = Column(JSON, comment="对话复盘")
    suggestions = Column(JSON, comment="改进建议")
    
    # AI分析元数据
    workflow_run_id = Column(String(100), comment="AI分析运行ID")
    task_id = Column(String(100), comment="AI分析任务ID")
    
    created_at = Column(DateTime, server_default=func.now(), comment="创建时间")
    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now(), comment="更新时间")
    
    def __repr__(self):
        return f"<PracticeReport(session_id='{self.session_id}', total_score={self.total_score})>"