{
  "version": 3,
  "sources": ["indexed-db-kv-store.ts", "push-notifications-controller.ts", "push-notifications.ts"],
  "sourcesContent": ["// localStorage-like API, but based on IndexedDB, so that it is usable both from normal code and service workers\n//\n// written by claude.ai\n\nasync function done(tx: IDBTransaction){\n    return new Promise<void>((resolve, reject) => {\n        tx.oncomplete = () => resolve();\n        tx.onerror = () => reject(tx.error);\n    });\n}\n\nexport async function set(key: string, value: string) {\n    const db = await openDB();\n    const tx = db.transaction(['kvStore'], 'readwrite');\n    const store = tx.objectStore('kvStore');\n    store.put({ key, value });\n    await done(tx);\n    db.close();\n}\n\nexport async function get(key: string): Promise<string | null> {\n    const db = await openDB();\n    const tx = db.transaction(['kvStore'], 'readonly');\n    const store = tx.objectStore('kvStore');\n    const item = store.get(key);\n    await done(tx);\n    db.close();\n    return item.result?.value;\n}\n\nexport async function remove(key: string) {\n    const db = await openDB();\n    const tx = db.transaction(['kvStore'], 'readwrite');\n    const store = tx.objectStore('kvStore');\n    store.delete(key);\n    await done(tx);\n    db.close();\n}\n\nasync function openDB() {\n    return new Promise<IDBDatabase>((resolve, reject) => {\n        const request = indexedDB.open('kvStore', 1);\n\n        request.onupgradeneeded = _ => {\n            const db = request.result;\n            db.createObjectStore('kvStore', { keyPath: 'key' });\n        };\n\n        request.onsuccess = () => resolve(request.result);\n        request.onerror = () => reject(request.error);\n    });\n}\n", "\uFEFF// Based on https://github.com/tpeczek/Demo.AspNetCore.PushNotifications/blob/58f9c836651ce9d9f50d68f16cc55f9e312eb722/Demo.AspNetCore.PushNotifications/wwwroot/scripts/push-notifications-controller.js\n\nimport * as kvStore from \"./indexed-db-kv-store\";\n\nfunction urlB64ToUint8Array(base64String: string) {\n    const padding = '='.repeat((4 - base64String.length % 4) % 4);\n    const base64 = (base64String + padding).replace(/-/g, '+').replace(/_/g, '/');\n\n    const rawData = window.atob(base64);\n    const outputArray = new Uint8Array(rawData.length);\n\n    for (let i = 0; i < rawData.length; ++i) {\n        outputArray[i] = rawData.charCodeAt(i);\n    }\n\n    return outputArray;\n}\n\nexport async function unregisterPushEndpoint(endpoint: string) {\n    await fetch('/api/push-subscriptions/' + encodeURIComponent(endpoint), {\n        method: 'DELETE'\n    });\n\n    await kvStore.remove(\"pushEndpoint\")\n}\n\nexport async function registerPushSubscription(pushSubscription: PushSubscription) {\n    const oldEndpoint = await kvStore.get(\"pushEndpoint\");\n    if (oldEndpoint)\n        await unregisterPushEndpoint(oldEndpoint);\n\n    await fetch('/api/push-subscriptions', {\n        method: 'PUT',\n        headers: {\n            'Content-Type': 'application/json',\n        },\n        body: JSON.stringify(pushSubscription)\n    });\n\n    await kvStore.set(\"pushEndpoint\", pushSubscription.endpoint);\n}\n\nexport async function retrievePublicKey() {\n    let response = await fetch('/api/push-subscriptions/public-key');\n    if (response.ok) {\n        let applicationServerPublicKeyBase64 = await response.text();\n        if (!applicationServerPublicKeyBase64)\n            return null;\n        return urlB64ToUint8Array(applicationServerPublicKeyBase64);\n    } else {\n        return Promise.reject(response.status + ' ' + response.statusText);\n    }\n}\n", "\uFEFF// Based on https://github.com/tpeczek/Demo.AspNetCore.PushNotifications/blob/58f9c836651ce9d9f50d68f16cc55f9e312eb722/Demo.AspNetCore.PushNotifications/wwwroot/scripts/push-notifications.js\n\nimport {registerPushSubscription, retrievePublicKey, unregisterPushEndpoint} from \"./push-notifications-controller\";\nimport * as kvStore from \"./indexed-db-kv-store\";\n\nlet applicationServerPublicKey;\nlet serviceWorkerCache;\n\n// Keeps track of all push endpoints exposed by this browser since the page loaded.\nconst prevDeviceEndpoints = new Set<string>();\n\nfunction getServiceWorker(): Promise<ServiceWorkerRegistration> {\n    return serviceWorkerCache ??= navigator.serviceWorker\n        .register('sw.js')\n        // ensure the sw is always updated\n        // https://github.com/firebase/firebase-js-sdk/blob/a9f844066045d8567ae143bae77d184ac227690d/packages/messaging/src/helpers/registerDefaultSw.ts#L34-L41\n        // TODO: move sw update logic to blazor as it knows whether the sw has actually changed using @Assets[]\n        .then(sw => sw.update())\n}\n\nasync function getPushSubscription(): Promise<PushSubscription | null> {\n    const permission = Notification.permission;\n    if (permission !== 'granted') return null;\n    return await (await getServiceWorker()).pushManager.getSubscription();\n}\n\n// unregister invalid/outdated endpoints, so they don't show up in the active count\nasync function checkSubscriptionRegistration() {\n    const subscription = await getPushSubscription();\n    const registeredEndpoint = await kvStore.get(\"pushEndpoint\");\n\n    if (registeredEndpoint)\n        prevDeviceEndpoints.add(registeredEndpoint);\n    if (subscription)\n        prevDeviceEndpoints.add(subscription.endpoint);\n\n    if (registeredEndpoint && subscription?.endpoint !== registeredEndpoint) {\n        await unregisterPushEndpoint(registeredEndpoint);\n    }\n}\n\nexport const getPushSubscriptionState = async (): Promise<{\n    prevDeviceEndpoints: string[];\n    currentEndpoint: string | undefined;\n    permissionState: string;\n}> => {\n    await checkSubscriptionRegistration();\n\n    const permission = Notification.permission;\n    const subscription = await getPushSubscription();\n    return {\n        permissionState: permission,\n        currentEndpoint: subscription?.endpoint,\n        prevDeviceEndpoints: [...prevDeviceEndpoints],\n    };\n};\n\n// @ts-ignore\nwindow.getPushSubscriptionState = getPushSubscriptionState;\n\n// @ts-ignore\nwindow.subscribeToPushNotifications = async (): Promise<string | null> => {\n    document.cookie = 'No-Push=; Expires=Thu, 01 Jan 1970 00:00:00 UTC; SameSite=Lax; Path=/; Secure';\n\n    const permissionState = await Notification.requestPermission();\n    if (permissionState !== 'granted')\n        return null;\n\n    applicationServerPublicKey ??= await retrievePublicKey();\n    const pushSubscription = await (await getServiceWorker()).pushManager.subscribe({\n        userVisibleOnly: true,\n        applicationServerKey: applicationServerPublicKey\n    })\n    await registerPushSubscription(pushSubscription)\n\n    prevDeviceEndpoints.add(pushSubscription.endpoint);\n    return pushSubscription.endpoint;\n};\n\nasync function unsubscribeFromPushNotifications() {\n    const pushSubscription = await (await getServiceWorker()).pushManager.getSubscription();\n    if (!pushSubscription)\n        return;\n    await pushSubscription.unsubscribe();\n    await unregisterPushEndpoint(pushSubscription.endpoint)\n}\n\n// @ts-ignore\nwindow.unsubscribeFromPushNotifications = unsubscribeFromPushNotifications;\n\n// Used by LogInOrOut.razor\n// @ts-ignore\nwindow.beforeSignOut = async (event: SubmitEvent) => {\n    event.preventDefault();\n\n    await unsubscribeFromPushNotifications();\n    document.cookie = 'No-Push=; Expires=Thu, 01 Jan 1970 00:00:00 UTC; SameSite=Lax; Path=/; Secure';\n\n    (event.target as HTMLFormElement).submit();\n};"],
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