feat: restart to apply update, privileged helper, rollback

web/src/composables/useUpdate.ts

@@ -21,7 +21,9 @@ export interface UpdateProgress {
 	total_bytes: number
 }
 
-export type UpdateErrorKind = 'download' | 'verification'
+export type UpdateErrorKind = 'download' | 'verification' | 'rolled_back' | 'install'
+
+export type RestartKind = 'update' | 'restart'
 
 export interface UpdateStatus {
 	current: string
@@ -35,6 +37,7 @@ export interface UpdateStatus {
 	progress: UpdateProgress | null
 	error: UpdateErrorKind | null
 	started_at: string | null
+	finished_at: string | null
 }
 
 export function useUpdate() {
@@ -52,5 +55,36 @@ export function useUpdate() {
 		return request<UpdateStatus>('/v1/system/update/download', { method: 'POST' })
 	}
 
-	return { getUpdateStatus, checkForUpdate, startUpdateDownload }
+	function requestRestart(kind: RestartKind): Promise<UpdateStatus> {
+		return request<UpdateStatus>('/v1/system/update/restart', {
+			method: 'POST',
+			headers: { 'Content-Type': 'application/json' },
+			body: JSON.stringify({ kind }),
+		})
+	}
+
+	function pollUpdateStatus(): Promise<UpdateStatus> {
+		return request<UpdateStatus>('/v1/system/update', {
+			onUnauthorized: 'passthrough',
+			onForbidden: 'passthrough',
+		})
+	}
+
+	async function isSiteUp(): Promise<boolean> {
+		try {
+			const response = await fetch('/healthz', { cache: 'no-store' })
+			return response.status === 200
+		} catch {
+			return false
+		}
+	}
+
+	return {
+		getUpdateStatus,
+		checkForUpdate,
+		startUpdateDownload,
+		requestRestart,
+		pollUpdateStatus,
+		isSiteUp,
+	}
 }