#!/usr/bin/env python
# -*- coding: utf-8 -*-

"""
任务导入导出模型模块
包含任务导入导出记录相关的数据模型
"""

import enum
from sqlalchemy import Column, Integer, String, Text, DateTime, Boolean, Enum, ForeignKey, JSON
from sqlalchemy.orm import relationship
from data.models.base import BaseModel

class ImportExportType(enum.Enum):
    """
    导入导出类型枚举
    """
    IMPORT = 'import'  # 导入
    EXPORT = 'export'  # 导出

class TaskImportExport(BaseModel):
    """
    任务导入导出模型
    记录任务的导入导出历史
    """
    __tablename__ = 'task_import_exports'

    operation_type = Column(Enum(ImportExportType), nullable=False, comment='操作类型')
    file_name = Column(String(255), nullable=False, comment='文件名称')
    file_size = Column(Integer, nullable=True, comment='文件大小（字节）')
    file_md5 = Column(String(32), nullable=True, comment='文件MD5校验值')
    task_ids = Column(JSON, nullable=True, comment='相关任务ID列表（JSON数组）')
    task_count = Column(Integer, nullable=True, comment='任务数量')
    user_id = Column(String(100), nullable=False, comment='操作用户ID')
    user_name = Column(String(100), nullable=True, comment='操作用户名称')
    operation_time = Column(DateTime, nullable=False, comment='操作时间')
    operation_ip = Column(String(50), nullable=True, comment='操作IP')
    is_success = Column(Boolean, default=True, comment='操作是否成功')
    error_message = Column(Text, nullable=True, comment='错误信息')
    file_content_preview = Column(Text, nullable=True, comment='文件内容预览')
    
    def __repr__(self):
        return f"<TaskImportExport(id={self.id}, operation_type='{self.operation_type}', file_name='{self.file_name}')>"
    
    @classmethod
    def get_by_user(cls, user_id, page=1, per_page=20):
        """
        获取用户的导入导出记录
        """
        return cls.query.filter(
            cls.user_id == user_id,
            cls.is_deleted == False
        ).order_by(cls.operation_time.desc()).paginate(page=page, per_page=per_page)
    
    @classmethod
    def get_by_task(cls, task_id, page=1, per_page=20):
        """
        获取任务的导入导出记录
        """
        from sqlalchemy import func
        return cls.query.filter(
            func.json_contains(cls.task_ids, str(task_id)),
            cls.is_deleted == False
        ).order_by(cls.operation_time.desc()).paginate(page=page, per_page=per_page)
    
    @classmethod
    def log_import(cls, file_name, file_size, file_md5, task_ids, task_count, user_id, user_name, 
                  operation_ip=None, is_success=True, error_message=None, file_content_preview=None):
        """
        记录任务导入操作
        """
        import datetime
        from config.database import db_session
        
        record = cls(
            operation_type=ImportExportType.IMPORT,
            file_name=file_name,
            file_size=file_size,
            file_md5=file_md5,
            task_ids=task_ids,
            task_count=task_count,
            user_id=user_id,
            user_name=user_name,
            operation_time=datetime.datetime.now(),
            operation_ip=operation_ip,
            is_success=is_success,
            error_message=error_message,
            file_content_preview=file_content_preview
        )
        
        db_session.add(record)
        db_session.commit()
        return record
    
    @classmethod
    def log_export(cls, file_name, file_size, file_md5, task_ids, task_count, user_id, user_name, 
                  operation_ip=None, is_success=True, error_message=None, file_content_preview=None):
        """
        记录任务导出操作
        """
        import datetime
        from config.database import db_session
        
        record = cls(
            operation_type=ImportExportType.EXPORT,
            file_name=file_name,
            file_size=file_size,
            file_md5=file_md5,
            task_ids=task_ids,
            task_count=task_count,
            user_id=user_id,
            user_name=user_name,
            operation_time=datetime.datetime.now(),
            operation_ip=operation_ip,
            is_success=is_success,
            error_message=error_message,
            file_content_preview=file_content_preview
        )
        
        db_session.add(record)
        db_session.commit()
        return record