#!/usr/bin/env python
# -*- coding: utf_8 -*-

import json
import uuid
from app.setting import config
from datetime import datetime
from sqlalchemy import create_engine
from sqlalchemy import func, Column, Integer, String, DateTime, Boolean
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker, class_mapper

engine = create_engine('sqlite:///{}?check_same_thread=False'.format(config.get("DATABASE")), echo=False)

Base = declarative_base()

def get_current_datetime():
    return datetime.now()

def gen_id():
   return uuid.uuid4().hex

def object_to_dict(obj):
    columns = [column.key for column in class_mapper(obj.__class__).columns]
    get_key_value = lambda c: (c, getattr(obj, c).isoformat()) if isinstance(getattr(obj, c), datetime) else (c, getattr(obj, c))
    return dict(map(get_key_value, columns))

class WatchTest(Base):
    __tablename__ = 'monitor_watch_test'
    id = Column(Integer, primary_key=True, autoincrement=True)
    imei = Column(String)
    create_at = Column(DateTime(timezone=True), default=get_current_datetime, server_default=func.now(), onupdate=func.now())

class Watch(Base):
    __tablename__ = 'monitor_watch'
    id = Column(Integer, primary_key=True, autoincrement=True)
    imei = Column(String)
    create_at = Column(DateTime(timezone=True), default=get_current_datetime, server_default=func.now(), onupdate=func.now())

    def to_dict(self):
        return {c.name: getattr(self, c.name) for c in self.__table__.columns}

class Request(Base):
    __tablename__ = 'monitor_request'
    id = Column(Integer, primary_key=True, autoincrement=True)
    watch = Column(Integer) # 手表ID
    host = Column(String)
    path = Column(String)
    protocol = Column(String)
    create_at = Column(DateTime(timezone=True), default=get_current_datetime, server_default=func.now(), onupdate=func.now())

    def to_dict(self):
        return {c.name: getattr(self, c.name) for c in self.__table__.columns}

class System(Base):
    __tablename__ = 'monitor_system'

    id = Column(Integer, primary_key=True, autoincrement=True)
    watch = Column(Integer) # 手表ID
    free_size = Column(Integer) # 单位：字节
    timestamp = Column(DateTime(timezone=True), default=get_current_datetime, server_default=func.now(), onupdate=func.now())

    def to_dict(self):
        return {c.name: getattr(self, c.name) for c in self.__table__.columns}

class Lvgl(Base):
    __tablename__ = 'monitor_lvgl'

    id = Column(Integer, primary_key=True, autoincrement=True)
    watch = Column(Integer) # 手表ID
    total_size = Column(Integer) # 单位：字节
    free_cnt = Column(Integer)
    free_size = Column(Integer)
    free_biggest_size = Column(Integer)
    used_cnt = Column(Integer)
    used_pct = Column(Integer)
    frag_pct = Column(Integer)
    timestamp = Column(DateTime(timezone=True), default=get_current_datetime, server_default=func.now(), onupdate=func.now())

    def to_dict(self):
        return {c.name: getattr(self, c.name) for c in self.__table__.columns}

class Evm(Base):
    __tablename__ = 'monitor_evm'

    id = Column(Integer, primary_key=True, autoincrement=True)
    watch = Column(Integer) # 手表ID
    # total_size = Column(Integer) # 单位：字节
    # free_size = Column(Integer)
    # gc_usage = Column(Integer)
    heap_map_size = Column(Integer)
    heap_total_size = Column(Integer)
    heap_used_size = Column(Integer)
    stack_total_size = Column(Integer)
    stack_used_size = Column(Integer)
    timestamp = Column(DateTime(timezone=True), default=get_current_datetime, server_default=func.now(), onupdate=func.now())

    def to_dict(self):
        # def convert_datetime(value):
        #     if value:
        #         return value.strftime("%Y-%m-%d %H:%M:%S")
        #     else:
        #         return ""

        # for col in self.__table__.columns:
        #     if isinstance(col.type, DateTime):
        #         value = convert_datetime(getattr(self, col.name))
        #     elif isinstance(col.type, Numeric):
        #         value = float(getattr(self, col.name))
        #     else:
        #         value = getattr(self, col.name)
        #     yield {col.name: value}

        return {c.name: getattr(self, c.name) for c in self.__table__.columns}

    def to_json(self):
        d = dict(self.__todict__())
        return json.dumps(d)

class Image(Base):
    __tablename__ = 'monitor_image'

    id = Column(Integer, primary_key=True, autoincrement=True)
    watch = Column(Integer) # 手表ID
    uri = Column(String(50))
    length = Column(Integer)
    png_uncompressed_size = Column(Integer)
    png_total_count = Column(Integer)
    png_file_size = Column(Integer)
    timestamp = Column(DateTime(timezone=True), default=get_current_datetime, server_default=func.now(), onupdate=func.now())

    def to_dict(self):
        return {c.name: getattr(self, c.name) for c in self.__table__.columns}

class User(Base):
    __tablename__ = "{}".format(config['TABLE_PREFIX']) + "user"
    id = Column(Integer, primary_key=True, autoincrement=True)
    uuid = Column(String(64), default=gen_id, index=True)
    account = Column(String(256))

class Device(Base):
    __tablename__ = "{}".format(config['TABLE_PREFIX']) + "device"

    id = Column(Integer, primary_key=True, autoincrement=True)
    uuid = Column(String(64), default=gen_id, index=True)
    name = Column(String, default="")
    imei = Column(String)
    desc = Column(String, default="")
    type = Column(String, default="watch")
    create_at = Column(DateTime(timezone=True), default=get_current_datetime, onupdate=func.now())
    create_by = Column(Integer, default=None, nullable=True)
    update_at = Column(DateTime(timezone=True), default=get_current_datetime, onupdate=func.now())
    update_by = Column(Integer, default=None)
    delete_at = Column(DateTime(timezone=True), default=get_current_datetime, onupdate=func.now())
    delete_by = Column(Integer, default=None)
    is_delete = Column(Boolean, default=False)
    sort = Column(Integer, default=1)
    remarks = Column(String, default="")

    def to_dict(self):
        return {c.name: getattr(self, c.name) for c in self.__table__.columns}

Base.metadata.create_all(engine, checkfirst=True)

# engine是2.2中创建的连接
Session = sessionmaker(bind=engine)
 
# 创建Session类实例
session = Session()