#include "Dao.h"
#include "common/Utils.h"

std::string DAO::sqlPageLimit(int index, int size)
{
    int startIndex = index * size;
    if (startIndex < 0) { startIndex = 0; }
    return " LIMIT " + std::to_string(startIndex) + "," + std::to_string(size);
}

bool DAO::count(DaoEntity& dao, std::string tableName, std::string condition, int& count)
{
    std::string sql = "SELECT COUNT(*) count FROM " + tableName;
    if (!condition.empty()) { sql += " WHERE " + condition; };
    sql += ";";

    std::vector<DataFields> result;
    bool ret = dao.exec(sql, result);
    if (ret)
    {
        count = (result.size() > 0) ? result[0].getInt("count") : 0;
    }
    return ret;
}

static bool QueryCount(DaoEntity& dao, std::string sqlFrom, int& count)
{
    std::vector<DataFields> result;
    bool ret = dao.exec("SELECT COUNT(*) count " + sqlFrom, result);
    if (ret)
    {
        count = (result.size() > 0) ? result[0].getInt("count") : 0;
    }
    return ret;
}


static bool QueryPagination(std::string sqlFrom, PageInfo& pageInfo, vector<DataFields>& result)
{
    DaoEntity dao("");

    int count {0};
    if (!QueryCount(dao, sqlFrom, count))
    {
        return false;
    }
    
    pageInfo.total = count;
    std::string sql = "SELECT * " + sqlFrom + DAO::sqlPageLimit(pageInfo.pageIndex, pageInfo.pageSize);
    bool ret = dao.exec(sql, result);
    if (!ret)
    {
        XLOGE() << "DAO database error: sql=" << sql;
    }
    return ret;
}

bool DAO::queryUserList(PageInfo& pageInfo, vector<DataFields>& result)
{
    DaoEntity dao("");
    std::string sqlFrom = "FROM " + DMUser::TABLENAME;
    bool ret = QueryPagination(sqlFrom, pageInfo, result);
    if (!ret)
    {
        XLOGE() << "DAO database error: queryUserList failed.";
    }
    return ret;
}

bool DAO::updateUserById(DataFields& params)
{
    std::string userId = params.getStr(DMUser::USER_ID);
    params.remove(DMUser::USER_ID);
    DaoEntity dao(DMUser::TABLENAME);
    return dao.updateFields(params, "WHERE " + DMUser::USER_ID + "='" + userId + "'");
}

bool DAO::queryRoleList(PageInfo& pageInfo, vector<DataFields>& result)
{
    DaoEntity dao("");
    std::string sqlFrom = "FROM " + DMRole::TABLENAME;
    bool ret = QueryPagination(sqlFrom, pageInfo, result);
    if (!ret)
    {
        XLOGE() << "DAO database error: queryRoleList failed.";
    }
    return ret;
}

bool DAO::queryPermissionList(PageInfo& pageInfo, vector<DataFields>& result)
{
    DaoEntity dao("");
    std::string sqlFrom = "FROM " + DMPermission::TABLENAME;
    bool ret = QueryPagination(sqlFrom, pageInfo, result);
    if (!ret)
    {
        XLOGE() << "DAO database error: queryPermissionList failed.";
    }
    return ret;
}

// 查询场站信息列表
bool DAO::queryStationList(vector<DataFields>& result)
{
    std::string sql = "SELECT * FROM " + DMStation::TABLENAME;
    return DaoEntity::execOnce(sql, result);
}

// 分页查询场站信息列表
bool DAO::queryStationList(PageInfo& pageInfo, vector<DataFields>& result)
{
    DaoEntity dao("");
    std::string sqlFrom = "FROM " + DMStation::TABLENAME;
    bool ret = QueryPagination(sqlFrom, pageInfo, result);
    if (!ret)
    {
        XLOGE() << "DAO database error: queryStationList failed.";
    }
    return ret;
}

// 查询设备信息列表
bool DAO::queryDeviceList(vector<DataFields>& result)
{
    std::string sql = "SELECT * FROM " + DMDevice::TABLENAME;
    return DaoEntity::execOnce(sql, result);
}

// 分页查询设备信息列表
bool DAO::queryDeviceList(PageInfo& pageInfo, vector<DataFields>& result)
{
    DaoEntity dao("");
    std::string sqlFrom = "FROM " + DMDevice::TABLENAME;
    bool ret = QueryPagination(sqlFrom, pageInfo, result);
    if (!ret)
    {
        XLOGE() << "DAO database error: queryDeviceList failed.";
    }
    return ret;
}

// 策略管理
bool DAO::queryPolicyList(PageInfo& pageInfo, vector<DataFields>& result)
{
    DaoEntity dao("");
    std::string sqlFrom = "FROM " + DMPolicy::TABLENAME;
    bool ret = QueryPagination(sqlFrom, pageInfo, result);
    if (!ret)
    {
        XLOGE() << "DAO database error: queryPolicyList failed.";
    }
    return ret;
}

// 系统日志管理
bool DAO::querySystemLogList(PageInfo& pageInfo, vector<DataFields>& result)
{
    DaoEntity dao("");
    std::string sqlFrom = "FROM " + DMSystemLog::TABLENAME;
    bool ret = QueryPagination(sqlFrom, pageInfo, result);
    if (!ret)
    {
        XLOGE() << "DAO database error: querySystemLogList failed.";
    }
    return ret;
}

bool DAO::queryStatDataList(std::string startDate, std::string endDate, vector<DataFields>& result)
{
    std::string sql = "SELECT * FROM " + DMStatStation::TABLENAME + " WHERE dt BETWEEN '" + startDate + "' AND '" + endDate + "';";
    return DaoEntity::execOnce(sql, result);
}