#include "bs_util.h"
using namespace std;

void jsonfail_func(json& j,int errcode,const std::string& detail)
{
    j["success"]=0;
    j["errcode"]=errcode;
    j["errmsg"]=string(GetErrMsg(errcode))+" : "+detail;
}

int getPermissionLevel(const std::string& Username,Response& res)
{
    DBInfo db;
    MySQLConn conn;
    json j;
    bool failed=false;
    auto jsonfail=[&](int errcode,const std::string& detail="")
    {
        jsonfail_func(j,errcode,detail);
        failed=true;
    };

    if( db.readConfig()<0 )
    {
        jsonfail(err_config);
    }
    else if(db.connectProxy(conn)<0)
    {
        jsonfail(err_connect);
    }
    else
    {
        int permission_level;
        int ret=conn.exec(make_str("select permission_level from bs_user where username='",
                            Username,
                            "'"),
                          [&](MySQLResult& res)
                          {
                              res.stepRow([&](char** val,unsigned long* len)
                                          {
                                              permission_level=ParseInt(val[0]);
                                          });
                          });
        if(ret==1)
        {
            jsonfail(err_data,"User Not Found");
        }
        else if(ret<0)
        {
            jsonfail(err_sql,"Step 1");
        }
        else
        {
            return permission_level;
        }
    }

    if(failed)
    {
        res.content=j.dump();
        exit(0);

        /// Never reaches here.
        return -1;
    }
    else
    {
        return -1;
    }

}

std::function<void(MySQLResult&)> SQLParseInt(int& nval)
{
    return
    [&](MySQLResult& res)
    {
        res.stepRow([&](char** val,unsigned long* len)
                {
                    nval=ParseInt(val[0]);
                });
    };
}