From 7f8cb2c581acca802eab90af690a979a8c4be42a Mon Sep 17 00:00:00 2001
From: karooolis <hello@karolisram.com>
Date: Wed, 14 Aug 2024 19:23:03 +0200
Subject: [PATCH] add script to fetch worlds.json config

---
 examples/local-explorer/mprocs.yaml                  |  2 +-
 .../local-explorer/packages/contracts/worlds.json    |  2 +-
 .../explorer/src/app/utils/server/getWorldAddress.ts | 11 ++++++++++-
 packages/explorer/src/hooks/useWorldAddress.ts       | 11 ++++++++++-
 packages/explorer/src/middleware.ts                  | 12 ++++++++++--
 5 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/examples/local-explorer/mprocs.yaml b/examples/local-explorer/mprocs.yaml
index 04b2dacb06..34ff398596 100644
--- a/examples/local-explorer/mprocs.yaml
+++ b/examples/local-explorer/mprocs.yaml
@@ -15,7 +15,7 @@ procs:
       FOLLOW_BLOCK_TAG: "latest"
       SQLITE_FILENAME: "indexer.db"
   explorer-watcher:
-    shell: bash explorer-watcher.sh
+    shell: node explorer-watcher.mjs
     env:
       PORT: "13690"
       MODE: "development"
diff --git a/examples/local-explorer/packages/contracts/worlds.json b/examples/local-explorer/packages/contracts/worlds.json
index 6fed600155..4d4f6774fa 100644
--- a/examples/local-explorer/packages/contracts/worlds.json
+++ b/examples/local-explorer/packages/contracts/worlds.json
@@ -2,4 +2,4 @@
   "31337": {
     "address": "0x8d8b6b8414e1e3dcfd4168561b9be6bd3bf6ec4b"
   }
-}
\ No newline at end of file
+}
diff --git a/packages/explorer/src/app/utils/server/getWorldAddress.ts b/packages/explorer/src/app/utils/server/getWorldAddress.ts
index 2b18d8d00d..8348406163 100644
--- a/packages/explorer/src/app/utils/server/getWorldAddress.ts
+++ b/packages/explorer/src/app/utils/server/getWorldAddress.ts
@@ -3,7 +3,16 @@ import { Hex, isAddress } from "viem";
 
 export function getWorldAddress(): Hex {
   const headersList = headers();
-  const worldAddress = headersList.get("x-world-address") || process.env.NEXT_PUBLIC_WORLD_ADDRESS;
+
+  let worldAddress = headersList.get("x-world-address") || process.env.NEXT_PUBLIC_WORLD_ADDRESS;
+  if (!worldAddress) {
+    const worldsConfig = process.env.NEXT_PUBLIC_WORLDS_CONFIG;
+    if (worldsConfig) {
+      const chainId = headersList.get("x-chain-id") || process.env.NEXT_PUBLIC_CHAIN_ID || 31337;
+      const worlds = JSON.parse(worldsConfig);
+      worldAddress = worlds[chainId]?.address;
+    }
+  }
 
   if (!worldAddress) {
     throw new Error("World address not found");
diff --git a/packages/explorer/src/hooks/useWorldAddress.ts b/packages/explorer/src/hooks/useWorldAddress.ts
index f4f66110bb..5b1d69469e 100644
--- a/packages/explorer/src/hooks/useWorldAddress.ts
+++ b/packages/explorer/src/hooks/useWorldAddress.ts
@@ -3,7 +3,16 @@ import { Hex, isAddress } from "viem";
 
 export function useWorldAddress(): Hex {
   const searchParams = useSearchParams();
-  const worldAddress = searchParams.get("worldAddress") || process.env.NEXT_PUBLIC_WORLD_ADDRESS;
+
+  let worldAddress = searchParams.get("worldAddress") || process.env.NEXT_PUBLIC_WORLD_ADDRESS;
+  if (!worldAddress) {
+    const worldsConfig = process.env.NEXT_PUBLIC_WORLDS_CONFIG;
+    if (worldsConfig) {
+      const chainId = searchParams.get("chainId") || process.env.NEXT_PUBLIC_CHAIN_ID || 31337;
+      const worlds = JSON.parse(worldsConfig);
+      worldAddress = worlds[chainId]?.address;
+    }
+  }
 
   if (!worldAddress) {
     throw new Error("World address not found");
diff --git a/packages/explorer/src/middleware.ts b/packages/explorer/src/middleware.ts
index 5409c00448..ac3f655196 100644
--- a/packages/explorer/src/middleware.ts
+++ b/packages/explorer/src/middleware.ts
@@ -2,9 +2,17 @@ import { NextResponse } from "next/server";
 import type { NextRequest } from "next/server";
 
 export function middleware(request: NextRequest) {
-  const worldAddress = request.nextUrl.searchParams.get("worldAddress") || process.env.NEXT_PUBLIC_WORLD_ADDRESS;
+  const chainId = request.nextUrl.searchParams.get("chainId");
+  const worldAddress = request.nextUrl.searchParams.get("worldAddress");
   const requestHeaders = new Headers(request.headers);
-  requestHeaders.set("x-world-address", worldAddress as string);
+
+  if (chainId) {
+    requestHeaders.set("x-chain-id", chainId);
+  }
+
+  if (worldAddress) {
+    requestHeaders.set("x-world-address", worldAddress as string);
+  }
 
   return NextResponse.next({
     request: {