/**
 * 保存服务端向客户端发送的“推送消息”。当用户A向用户B发送消息，服务器会保存此消息，并构建一条通知消息保存到数据库，
 * 并通过个推系统向B发送此消息。
 */
"use strict";

let log = require('../util/log');
let imRepo = require("./mysql/im.db.js");

/**
 * 保存推送消息。
 *
 * @param to
 * @param contentType
 * @param title
 * @param content
 * @param message
 * @param has_pushed
 * @param delay
 * @param handler
 */
exports.save = function(to, contentType, title, content, message, has_pushed, delay, handler) {
    imRepo.execQuery({
        "sql": "INSERT INTO push_notify (to_uid, type, title, content, data, delay, has_pushed) VALUES (?,?,?,?,?,?,?)",
        "args": [to, contentType, title, content, message,delay, has_pushed],
        "handler": handler
    });
};

/**
 * 查找未推送的消息。
 */
exports.findUnpushedMessages = function (handler) {
    let sql = "select to_uid, title, type, content, data, delay " +
        "FROM push_notify " +
        "WHERE delay IS NOT NULL AND delay > now()";

    imRepo.execQuery({
        "sql": sql,
        "args": [],
        "handler": handler
    });
};

//exports.save = save;