"""
SQLAlchemy Models for FA3 Refactored Architecture
新架构的数据库 ORM 模型
"""
from sqlalchemy import Column, Integer, String, Text, TIMESTAMP, Boolean, JSON, ForeignKey
from sqlalchemy.orm import declarative_base, relationship
from sqlalchemy.sql import func

Base = declarative_base()

class Company(Base):
    """公司元数据表"""
    __tablename__ = 'companies'
    
    id = Column(Integer, primary_key=True)
    market = Column(String(10), nullable=False)
    symbol = Column(String(50), nullable=False)
    company_name = Column(String(255), nullable=False)
    created_at = Column(TIMESTAMP, server_default=func.now())
    updated_at = Column(TIMESTAMP, server_default=func.now(), onupdate=func.now())
    
    # 关系
    data_updates = relationship("DataUpdate", back_populates="company", cascade="all, delete-orphan")
    ai_analyses = relationship("AIAnalysis", back_populates="company", cascade="all, delete-orphan")
    data_source_availability = relationship("DataSourceAvailability", back_populates="company", cascade="all, delete-orphan")
    
    def __repr__(self):
        return f"<Company(id={self.id}, market={self.market}, symbol={self.symbol}, name={self.company_name})>"


class DataUpdate(Base):
    """数据更新记录表"""
    __tablename__ = 'data_updates'
    
    id = Column(Integer, primary_key=True)
    company_id = Column(Integer, ForeignKey('companies.id', ondelete='CASCADE'), nullable=False)
    data_source = Column(String(50), nullable=False)
    update_type = Column(String(50), nullable=False)
    status = Column(String(20), nullable=False)
    started_at = Column(TIMESTAMP, server_default=func.now())
    completed_at = Column(TIMESTAMP, nullable=True)
    error_message = Column(Text, nullable=True)
    
    # 数据覆盖范围
    data_start_date = Column(String(8), nullable=True)
    data_end_date = Column(String(8), nullable=True)
    
    # 元数据 (JSONB)
    fetched_tables = Column(JSON, nullable=True)
    row_counts = Column(JSON, nullable=True)
    
    # 进度跟踪
    progress_message = Column(String(255), nullable=True)
    progress_percentage = Column(Integer, default=0)
    
    # 关系
    company = relationship("Company", back_populates="data_updates")
    
    def __repr__(self):
        return f"<DataUpdate(id={self.id}, company_id={self.company_id}, source={self.data_source}, status={self.status})>"


class AIAnalysis(Base):
    """AI 分析报告表"""
    __tablename__ = 'ai_analyses'
    
    id = Column(Integer, primary_key=True)
    company_id = Column(Integer, ForeignKey('companies.id', ondelete='CASCADE'), nullable=False)
    data_source = Column(String(50), nullable=False)
    ai_model = Column(String(100), nullable=False)
    status = Column(String(20), nullable=False)
    
    # 分析内容 (Markdown 格式)
    company_profile = Column(Text, nullable=True)
    fundamental_analysis = Column(Text, nullable=True)
    insider_analysis = Column(Text, nullable=True)
    bullish_analysis = Column(Text, nullable=True)
    bearish_analysis = Column(Text, nullable=True)
    
    # Token 使用情况
    total_tokens = Column(Integer, default=0)
    tokens_by_section = Column(JSON, nullable=True)
    
    created_at = Column(TIMESTAMP, server_default=func.now())
    completed_at = Column(TIMESTAMP, nullable=True)
    error_message = Column(Text, nullable=True)
    
    # 关系
    company = relationship("Company", back_populates="ai_analyses")
    
    def __repr__(self):
        return f"<AIAnalysis(id={self.id}, company_id={self.company_id}, source={self.data_source}, status={self.status})>"


class DataSourceAvailability(Base):
    """数据源可用性表"""
    __tablename__ = 'data_source_availability'
    
    company_id = Column(Integer, ForeignKey('companies.id', ondelete='CASCADE'), primary_key=True)
    data_source = Column(String(50), primary_key=True)
    has_data = Column(Boolean, default=False)
    last_update = Column(TIMESTAMP, nullable=True)
    row_count = Column(Integer, default=0)
    
    # 关系
    company = relationship("Company", back_populates="data_source_availability")
    
    def __repr__(self):
        return f"<DataSourceAvailability(company_id={self.company_id}, source={self.data_source}, has_data={self.has_data})>"


class Setting(Base):
    """系统配置表"""
    __tablename__ = 'settings'
    
    key = Column(String(100), primary_key=True)
    value = Column(Text, nullable=False)
    updated_at = Column(TIMESTAMP, server_default=func.now(), onupdate=func.now())
    
    def __repr__(self):
        return f"<Setting(key={self.key}, value={self.value[:50]})>"