signal-desktop/ts/notifications/getStatus.ts
2018-05-02 19:58:33 -04:00

66 lines
1.4 KiB
TypeScript

interface Environment {
isAppFocused: boolean;
isAudioNotificationEnabled: boolean;
isAudioNotificationSupported: boolean;
isEnabled: boolean;
numNotifications: number;
userSetting: UserSetting;
}
interface Status {
shouldClearNotifications: boolean;
shouldPlayNotificationSound: boolean;
shouldShowNotifications: boolean;
type: Type;
}
type UserSetting = 'off' | 'count' | 'name' | 'message';
type Type =
| 'ok'
| 'disabled'
| 'appIsFocused'
| 'noNotifications'
| 'userSetting';
export const getStatus = ({
isAppFocused,
isAudioNotificationEnabled,
isAudioNotificationSupported,
isEnabled,
numNotifications,
userSetting,
}: Environment): Status => {
const type = ((): Type => {
if (!isEnabled) {
return 'disabled';
}
const hasNotifications = numNotifications > 0;
if (!hasNotifications) {
return 'noNotifications';
}
if (isAppFocused) {
return 'appIsFocused';
}
if (userSetting === 'off') {
return 'userSetting';
}
return 'ok';
})();
const shouldPlayNotificationSound =
isAudioNotificationSupported && isAudioNotificationEnabled;
const shouldShowNotifications = type === 'ok';
const shouldClearNotifications = type === 'appIsFocused';
return {
shouldClearNotifications,
shouldPlayNotificationSound,
shouldShowNotifications,
type,
};
};