private async showRandomGeneralTipNotification()

in src/extension/services/tipsNotificationsService/tipsNotificationService.ts [291:361]
59 lines of code
8 McCabe index (conditional complexity)

    private async showRandomGeneralTipNotification(): Promise<GeneratedTipResponse> {
        let generalTipsForRandom: Array<string>;
        const generalTips: Tips = this.tipsConfig.tips.generalTips;
        const generalTipsKeys: Array<string> = Object.keys(this.tipsConfig.tips.generalTips);

        if (!this.tipsConfig.allTipsShownFirstly) {
            generalTipsForRandom = generalTipsKeys.filter(
                tipId => !generalTips[tipId].knownDate && !generalTips[tipId].shownDate,
            );
            if (generalTipsForRandom.length === 1) {
                this.tipsConfig.allTipsShownFirstly = true;
            }
        } else {
            generalTipsForRandom = generalTipsKeys.sort(
                (tipId1, tipId2) =>
                    // According to ECMAScript standard: The exact moment of midnight at the beginning of
                    // 01 January, 1970 UTC is represented by the value +0.
                    (generalTips[tipId2].shownDate ?? new Date(+0)).getTime() -
                    (generalTips[tipId1].shownDate ?? new Date(+0)).getTime(),
            );
        }

        let leftIndex: number;

        switch (generalTipsForRandom.length) {
            case 0:
                return {
                    selection: undefined,
                    tipKey: "",
                };
            case 1:
                leftIndex = 0;
                break;
            case 2:
                leftIndex = 1;
                break;
            default:
                leftIndex = 2;
        }

        const randIndex: number = getRandomIntInclusive(leftIndex, generalTipsForRandom.length - 1);
        const selectedGeneralTipKey: string = generalTipsForRandom[randIndex];
        const tipNotificationText = this.getGeneralTipNotificationTextByKey(selectedGeneralTipKey);

        this.tipsConfig.tips.generalTips[selectedGeneralTipKey].shownDate = new Date();

        this._tipsConfig = await this.mergeRemoteConfigToLocal(this.tipsConfig);
        const daysBeforeNextTip: number = this.tipsConfig.allTipsShownFirstly
            ? getRandomIntInclusive(
                  this.tipsConfig.minDaysToRemind,
                  this.tipsConfig.maxDaysToRemind,
              )
            : getRandomIntInclusive(
                  this.tipsConfig.firstTimeMinDaysToRemind,
                  this.tipsConfig.firstTimeMaxDaysToRemind,
              );

        this.tipsConfig.daysLeftBeforeGeneralTip = daysBeforeNextTip;

        ExtensionConfigManager.config.set(this.TIPS_CONFIG_NAME, this.tipsConfig);

        this.sendShowTipNotificationTelemetry(selectedGeneralTipKey);

        return {
            selection: await vscode.window.showInformationMessage(
                tipNotificationText,
                ...[this.getMoreInfoButtonText, this.doNotShowTipsAgainButtonText],
            ),
            tipKey: selectedGeneralTipKey,
        };
    }