feat(cache): add support for swr detection (#376)

src/runtime/cache/driver.mjs

@@ -14,30 +14,31 @@ export default defineDriver((driverOpts) => {
   return {
     name: 'nuxthub-cache',
     ...driver,
-    setItem(key, value, options) {
+    setItem(key, value, options = {}) {
       const event = nitroAsyncContext.tryUse()?.event
-      // TODO: remove this if once Nitro 2.10 is out with Nuxt version
-      // As this does not support properly swr (as expiration should not be used)
-      // Fallback to expires value ({"expires":1729118447040,...})
-      if (!options.ttl && typeof value === 'string') {
-        const expires = value.match(/^\{"expires":(\d+),/)?.[1]
+      let ttl = options.ttl
+      // If SWR, ttl is not set as options from Nitro
+      // Guess from expires value ({"expires":1729118447040,...})
+      if (typeof ttl === 'undefined' && typeof value === 'string') {
+        const expires = value.match(/[{,]"expires":(\d+)[,}]/)?.[1]
         if (expires) {
-          options.ttl = Math.round((Number(expires) - Date.now()) / 1000)
+          ttl = Math.round((Number(expires) - Date.now()) / 1000)
         }
       }
-      if (options.ttl) {
-        // Make sure to have a ttl of at least 60 seconds (Cloudflare KV limitation)
-        options.ttl = Math.max(options.ttl, 60)
-      }
 
       options.metadata = {
-        ttl: options.ttl,
+        ttl,
+        swr: typeof options.ttl === 'undefined',
         mtime: Date.now(),
         size: value.length,
         path: event?.path,
         ...options.metadata
       }
-      if (!options.ttl) {
+      if (options.ttl) {
+        // Make sure to have a ttl of at least 60 seconds (Cloudflare KV limitation)
+        options.ttl = Math.max(options.ttl, 60)
+      } else {
+        // make sure ttl = 0 is deleted
         delete options.ttl
       }
       return driver.setItem(key, value, options)