feat: download encrypted usage (#7804)

frontend/src/lib/components/InstanceSetting.svelte

@@ -177,7 +177,7 @@
 {/snippet}
 
 <!-- {JSON.stringify($values, null, 2)} -->
-{#if (!setting.cloudonly || isCloudHosted()) && showSetting(setting.key, $values) && !(setting.hiddenIfNull && $values[setting.key] == null) && !(setting.hiddenIfEmpty && !$values[setting.key])}
+{#if (!setting.cloudonly || isCloudHosted()) && showSetting(setting.key, $values) && !(setting.hiddenIfNull && $values[setting.key] == null) && !(setting.hiddenIfEmpty && !$values[setting.key]) && !(setting.hiddenInEe && $enterpriseLicense)}
 	{#if setting.fieldType == 'select'}
 		<div>
 			{@render LabelSnippet()}

frontend/src/lib/components/InstanceSettings.svelte

@@ -231,6 +231,28 @@
 		}
 	}
 
+	let downloadingStats = $state(false)
+	async function downloadStats() {
+		try {
+			downloadingStats = true
+			const encryptedData = await SettingService.getStats()
+			const blob = new Blob([encryptedData], { type: 'application/octet-stream' })
+			const url = URL.createObjectURL(blob)
+			const a = document.createElement('a')
+			a.href = url
+			a.download = `windmill-telemetry-${new Date().toISOString().split('T')[0]}.enc`
+			document.body.appendChild(a)
+			a.click()
+			document.body.removeChild(a)
+			URL.revokeObjectURL(url)
+			sendUserToast('Telemetry data downloaded')
+		} catch (err) {
+			throw err
+		} finally {
+			downloadingStats = false
+		}
+	}
+
 	function isValidTeamsChannel(value: any): value is TeamsChannel {
 		return (
 			typeof value === 'object' &&
@@ -341,18 +363,29 @@
 						<div class="text-primary pb-4 text-xs">
 							On Enterprise Edition, you must send data to check that usage is in line with the
 							terms of the subscription. You can either enable telemetry or regularly send usage
-							data by clicking the button below.
+							data by clicking the button below. For air-gapped instances, you can download the
+							telemetry data and send it manually.
+						</div>
+						<div class="flex gap-2 mb-4">
+							<Button
+								on:click={sendStats}
+								variant="default"
+								btnClasses="w-auto"
+								loading={sendingStats}
+								size="xs"
+							>
+								Send usage
+							</Button>
+							<Button
+								on:click={downloadStats}
+								variant="default"
+								btnClasses="w-auto"
+								loading={downloadingStats}
+								size="xs"
+							>
+								Download usage
+							</Button>
 						</div>
-						<Button
-							on:click={sendStats}
-							variant="default"
-							btnClasses="w-auto"
-							wrapperClasses="mb-4"
-							loading={sendingStats}
-							size="xs"
-						>
-							Send usage
-						</Button>
 					{/if}
 				{:else if category == 'Auth/OAuth/SAML'}
 					<AuthSettings

frontend/src/lib/components/instanceSettings.ts

@@ -58,6 +58,7 @@ export interface Setting {
 	}
 	hiddenIfNull?: boolean
 	hiddenIfEmpty?: boolean
+	hiddenInEe?: boolean
 	requiresReloadOnChange?: boolean
 	isValid?: (value: any) => boolean
 	error?: string
@@ -497,7 +498,8 @@ export const settings: Record<string, Setting[]> = {
 			label: 'Disable telemetry',
 			key: 'disable_stats',
 			fieldType: 'boolean',
-			storage: 'setting'
+			storage: 'setting',
+			hiddenInEe: true
 		}
 	],
 	'Secret Storage': [