//
// Created by dongl on 23-5-29.
//

#include "db_base.h"
#include "mongocxx/instance.hpp"
#include "mongocxx/uri.hpp"


db_base::db_base() {
    mongocxx::instance instance{}; // This should be done only once.
    mongocxx::uri uri("mongodb://user_session:Aa316216@124.221.152.192:27017/?authSource=im_session");
    pool = new mongocxx::pool(uri);
}
db_base::~db_base() {
    delete pool;
}


mongocxx::pool::entry db_base::acquire() {
    return pool->acquire();
}

bsoncxx::stdx::optional<mongocxx::pool::entry> db_base::try_acquire() {
    return pool->try_acquire();
}

mongocxx::collection db_base::hit_db_coll(const std::string& db_name, const std::string& coll_name) {
    // 取池链接
    auto conn = acquire();
    // 选中库
    auto db = conn->database(db_name);
    // 选中表
    return db.collection(coll_name);
}