const cache = new (require("data-store"))({ path: "persistentDb.json" });

var Cache = {}
Cache.SetScores = function(scores) {
    var dataToSet = {};
    for (var i in scores)
        if (scores[i].score)
            dataToSet[scores[i].name] = scores[i].score;
    cache.set("scores", dataToSet);
    cache.set("saveTs", Date.now());
}

Cache.getReportedQuestions = function(questionId, username) {
    return cache.get("report") || {};
}

Cache.isReportedBy = function(questionId, username) {
    var reported = cache.get("report") || {};
    var questionReported = reported[questionId] || {};
    reported[questionId] = questionReported;
    return !!(questionReported[username]);
}

Cache.reportQuestion = function(questionId, username) {
    var reported = cache.get("report") || {};
    var questionReported = reported[questionId] || {};
    reported[questionId] = questionReported;
    if (questionReported[username])
        return;
    questionReported[username] = Date.now();
    cache.set("report", reported);
}

Cache.clearReports = function() {
    cache.set("report", {});
}

Cache.unreportQuestion = function(questionId, username) {
    var reported = cache.get("report") || {};
    if (!reported[questionId])
        return;
    if (username)
        reported[questionId][username] && delete reported[questionId][username];
    else
        delete reported[questionId];
    cache.set("report", reported);
}

Cache.setExportTs = function() {
    cache.set("mysqlTs", Date.now());
}

Cache.getLastMysqlSave = function() {
    return cache.get("mysqlTs") || 0;
}

Cache.GetData = function() {
    return {
        scores: cache.get("scores"),
        lastSave: cache.get("saveTs") || 0,
        lastMysqlExport: cache.get("mysqlTs") || 0
    };
}

module.exports = Cache;