#include "Device.h"

#include "common/Logger.h"
#include "common/Utils.h"
#include "protocol/Communicator.h"
#include "common/JsonN.h"

//int DeviceEntity::getAttrInt(std::string key)
//{
//    auto iter = mapAttrs.find(key);
//    if (iter == mapAttrs.end()) { return 0; }
//    return Utils::toInt(iter->second);
//}
//
//float DeviceEntity::getAttrFloat(std::string key)
//{
//    auto iter = mapAttrs.find(key);
//    if (iter == mapAttrs.end()) { return 0.0f; }
//    return Utils::toFloat(iter->second);
//}
//
//double DeviceEntity::getAttrDouble(std::string key)
//{
//    auto iter = mapAttrs.find(key);
//    if (iter == mapAttrs.end()) { return 0.0; }
//    return Utils::toDouble(iter->second);
//}
//
//std::string DeviceEntity::getAttrStr(std::string key)
//{
//    auto iter = mapAttrs.find(key);
//    if (iter == mapAttrs.end()) { return ""; }
//    return iter->second;
//}

int DeviceEntity::startComm()
{
    if (!isOpen) 
    {
        if (commEntity && commEntity->isAlive())
        {
            commEntity->close();
        }
        return 0;
    }

    // 从属性列表中获取通讯方式和通讯地址、端口
    std::string commType = attrs.getStr("commType");
    
    // 如果entity的通讯协议类型当前配置不一致，需要关闭连接删除通讯后创建新的通讯
    if (commEntity && commEntity->type != commType)
    {
        commEntity->close();
        commEntity = nullptr;
    }
    // 创建新的通讯
    if (!commEntity) 
    {
        commEntity = Communicator::createEntity(attrs);
        if (!commEntity) { return -1; }
    }

    commEntity->start();
    return 0;
}

// ================================================================================================
// $$Device
std::map<int, std::shared_ptr<DeviceEntity>> Device::mapDevices;

void Device::add(DataFields& fields)
{
    auto entity = std::make_shared<DeviceEntity>();
    entity->deviceId = fields.getInt("device_id");
    entity->type = fields.getInt("type");
    entity->name = fields.getStr("name"); 
    entity->code = fields.getStr("code");
    entity->isOpen = fields.getInt("is_open");
    entity->attrsJson = fields.getStr("attrs");

    // 解析属性的JSON字符串，转换成键值对
    NJson jsonroot;
    bool ret = NJsonParse(entity->attrsJson, jsonroot);
    if (!ret) // 解析错误
    {
        XLOGE() << "device attr json parse error, device_id=" << entity->deviceId;
    }
    else
    {
        for (auto& [key, val] : jsonroot.items()) {
            std::string valType = val.type_name();
            if (valType == "string") {
                entity->attrs.set(key, val.get<std::string>()); 
            }
            else if (valType == "number") {
                entity->attrs.set(key, val.get<int>()); 
            }
            else { 
                XLOGE() << key << ": [" << valType << "]";
            }
        }
    }

    // 保存设备 entity 到 map
    if (entity->deviceId != -1)
    {
        mapDevices[entity->deviceId] = entity;
    }

    // 启动通讯，该函数中会自动判断isOpen状态，选择是否进行通讯连接
    entity->startComm();
}

std::vector<std::shared_ptr<DeviceEntity>> Device::getDeviceByType(int type)
{
    std::vector<std::shared_ptr<DeviceEntity>> vecDevice;
    for (auto iter = mapDevices.begin(); iter!=mapDevices.end(); ++iter)
    {
        auto device = iter->second;
        if (device && (type<=0 || device->type == type))
        {
            vecDevice.push_back(device);
        }
    }
    return vecDevice;
}