Kristaps Fabians Geikins
69 lines
2.8 KiB
TypeScript
69 lines
2.8 KiB
TypeScript
import {
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NotificationChannel,
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NotificationType,
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NotificationPreferences
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} from '@/modules/notifications/helpers/types'
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import { InvalidArgumentError } from '@/modules/shared/errors'
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import {
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GetSavedUserNotificationPreferences,
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GetUserNotificationPreferences,
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SaveUserNotificationPreferences
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} from '@/modules/notifications/domain/operations'
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export const getUserNotificationPreferencesFactory =
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(deps: {
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getSavedUserNotificationPreferences: GetSavedUserNotificationPreferences
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}): GetUserNotificationPreferences =>
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async (userId: string): Promise<NotificationPreferences> => {
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const savedPreferences = await deps.getSavedUserNotificationPreferences(userId)
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return addDefaultPreferenceValues(savedPreferences)
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}
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function addDefaultPreferenceValues(
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preferences: NotificationPreferences
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): NotificationPreferences {
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const savedPreferences = { ...preferences }
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Object.values(NotificationType).forEach((nt) => {
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const notificationTypeSettings = savedPreferences[nt] ?? {}
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Object.values(NotificationChannel).forEach((nc) => {
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notificationTypeSettings[nc] = notificationTypeSettings[nc] ?? true
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})
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savedPreferences[nt] = notificationTypeSettings
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})
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return savedPreferences
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}
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export const updateNotificationPreferencesFactory =
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(deps: { saveUserNotificationPreferences: SaveUserNotificationPreferences }) =>
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async (userId: string, rawPreferences: Record<string, unknown>): Promise<void> => {
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const parsedPreferences: NotificationPreferences = {}
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// lets do some nested attribute copying, to sanitize the input
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for (const key in rawPreferences) {
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if (!Object.values(NotificationType).includes(key as NotificationType))
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throw new InvalidArgumentError(
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`Notification preferences input contains an unknown setting: ${key}`
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)
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const nt = key as NotificationType
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const notificationTypePreferences: Partial<Record<NotificationChannel, boolean>> =
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{}
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const notificationTypeSettings = rawPreferences[nt] as Record<string, unknown>
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for (const ncKey in notificationTypeSettings) {
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if (!Object.values(NotificationChannel).includes(ncKey as NotificationChannel))
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throw new InvalidArgumentError(
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`Notification preferences input contains an unknown setting: ${ncKey}`
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)
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const nc = ncKey as NotificationChannel
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const preferenceValue = notificationTypeSettings[nc]
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if (typeof preferenceValue !== 'boolean')
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throw new InvalidArgumentError(
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`Notification preferences input contains and invalid value: ${preferenceValue}`
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)
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notificationTypePreferences[nc] = preferenceValue
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}
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parsedPreferences[nt] = notificationTypePreferences
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}
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return await deps.saveUserNotificationPreferences(userId, parsedPreferences)
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}
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