"""
后台管理系统ORM定义

定义管理员用户、操作日志和登录尝试记录的数据库表结构
Requirements: 13.2, 13.3
"""
from sqlalchemy import Column, Integer, BigInteger, String, Text, DateTime, Boolean, ForeignKey, Index
from sqlalchemy.dialects.postgresql import JSON
from sqlalchemy.sql import func
import json

from app.database import Base


class AdminUser(Base):
    """
    管理员用户ORM类
    """
    __tablename__ = "admin_users"

    id = Column(Integer, primary_key=True, autoincrement=True, comment="主键ID")
    username = Column(String(50), unique=True, nullable=False, index=True, comment="用户名")
    password_hash = Column(String(255), nullable=False, comment="密码哈希")
    nickname = Column(String(100), nullable=False, comment="昵称")
    status = Column(String(20), nullable=False, default="active", comment="状态：active/disabled")
    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")

    __table_args__ = (
        Index('idx_admin_users_status', 'status'),
        {'schema': 'aigcspace', 'comment': '管理员用户表'}
    )

    def __repr__(self):
        return f"<AdminUser(id={self.id}, username='{self.username}', nickname='{self.nickname}')>"


class OperationLog(Base):
    """
    操作日志ORM类
    """
    __tablename__ = "operation_log"

    id = Column(BigInteger, primary_key=True, autoincrement=True, comment="主键ID")
    admin_id = Column(Integer, ForeignKey("aigcspace.admin_users.id"), nullable=False, comment="管理员ID")
    operation_type = Column(String(50), nullable=False, comment="操作类型：create/update/delete/login")
    module = Column(String(50), nullable=False, comment="操作模块：user/model/config")
    target_id = Column(String(100), nullable=True, comment="操作对象ID")
    detail = Column(JSON, nullable=True, comment="操作详情（JSON格式）")
    ip_address = Column(String(50), nullable=True, comment="IP地址")
    created_at = Column(DateTime, server_default=func.now(), comment="创建时间")

    __table_args__ = (
        Index('idx_operation_log_admin_id', 'admin_id'),
        Index('idx_operation_log_operation_type', 'operation_type'),
        Index('idx_operation_log_module', 'module'),
        Index('idx_operation_log_created_at', 'created_at'),
        {'schema': 'aigcspace', 'comment': '管理员操作日志表'}
    )

    def __repr__(self):
        return f"<OperationLog(id={self.id}, admin_id={self.admin_id}, type='{self.operation_type}', module='{self.module}')>"


class AdminLoginAttempt(Base):
    """
    管理员登录尝试记录ORM类
    """
    __tablename__ = "admin_login_attempt"

    id = Column(Integer, primary_key=True, autoincrement=True, comment="主键ID")
    username = Column(String(50), nullable=False, index=True, comment="用户名")
    success = Column(Boolean, nullable=False, comment="是否成功")
    ip_address = Column(String(50), nullable=True, comment="IP地址")
    created_at = Column(DateTime, server_default=func.now(), comment="创建时间")

    __table_args__ = (
        Index('idx_admin_login_attempt_created_at', 'created_at'),
        {'schema': 'aigcspace', 'comment': '管理员登录尝试记录表'}
    )

    def __repr__(self):
        return f"<AdminLoginAttempt(id={self.id}, username='{self.username}', success={self.success})>"