feat: update button (download, verify, stage)

web/src/composables/useUpdate.ts

@@ -15,6 +15,14 @@ export interface UpdateNotes {
 	items: string[]
 }
 
+export interface UpdateProgress {
+	percent: number
+	downloaded_bytes: number
+	total_bytes: number
+}
+
+export type UpdateErrorKind = 'download' | 'verification'
+
 export interface UpdateStatus {
 	current: string
 	latest: string
@@ -24,8 +32,8 @@ export interface UpdateStatus {
 	checked_at: string | null
 	can_apply: boolean
 	state: UpdateState
-	progress: unknown
-	error: string | null
+	progress: UpdateProgress | null
+	error: UpdateErrorKind | null
 	started_at: string | null
 }
 
@@ -40,5 +48,9 @@ export function useUpdate() {
 		return request<UpdateStatus>('/v1/system/update/check', { method: 'POST' })
 	}
 
-	return { getUpdateStatus, checkForUpdate }
+	function startUpdateDownload(): Promise<UpdateStatus> {
+		return request<UpdateStatus>('/v1/system/update/download', { method: 'POST' })
+	}
+
+	return { getUpdateStatus, checkForUpdate, startUpdateDownload }
 }