From 15be9a6c072bf287c879763a3e573207b06b73ed Mon Sep 17 00:00:00 2001
From: Brandon Liu <bdon@bdon.org>
Date: Wed, 5 Oct 2022 17:23:11 +0800
Subject: [PATCH] JS: Fix v2 defaults for Compression/TileType

---
 js/index.ts |  2 +-
 js/v2.ts    | 10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/js/index.ts b/js/index.ts
index d44de89..bb3963d 100644
--- a/js/index.ts
+++ b/js/index.ts
@@ -142,7 +142,7 @@ export enum Compression {
 }
 
 function tryDecompress(buf: ArrayBuffer, compression: Compression) {
-	if (compression === Compression.None) {
+	if (compression === Compression.None || compression === Compression.Unknown) {
 		return buf;
 	} else if (compression === Compression.Gzip) {
 		return decompressSync(new Uint8Array(buf));
diff --git a/js/v2.ts b/js/v2.ts
index d40afb6..c4e20fa 100644
--- a/js/v2.ts
+++ b/js/v2.ts
@@ -1,4 +1,4 @@
-import { Source, Header, Cache, RangeResponse, Compression } from "./index";
+import { Source, Header, Cache, RangeResponse, Compression, TileType } from "./index";
 import { decompressSync } from "fflate";
 
 export const shift = (n: number, shift: number) => {
@@ -213,12 +213,12 @@ async function getHeaderAndRoot(
 			`Archive is missing 'bounds' in metadata, required in v2 and above.`
 		);
 	}
-	if (!json_metadata.minzoom) {
+	if (!('minzoom' in json_metadata)) {
 		console.warn(
 			`Archive is missing 'minzoom' in metadata, required in v2 and above.`
 		);
 	}
-	if (!json_metadata.maxzoom) {
+	if (!('maxzoom' in json_metadata)) {
 		console.warn(
 			`Archive is missing 'maxzoom' in metadata, required in v2 and above.`
 		);
@@ -239,8 +239,8 @@ async function getHeaderAndRoot(
 		numTileContents: 0,
 		clustered: false,
 		internalCompression: Compression.Unknown,
-		tileCompression: 0,
-		tileType: 0,
+		tileCompression: Compression.Unknown,
+		tileType: TileType.Mvt,
 		minZoom: +json_metadata.minzoom,
 		maxZoom: +json_metadata.maxzoom,
 		minLon: 0,