From 5a55ab335845638ce6392feecc0ab03c71e1d358 Mon Sep 17 00:00:00 2001
From: Etienne Donneger <etienne@pinax.network>
Date: Wed, 24 Apr 2024 12:24:21 -0400
Subject: [PATCH] Include statistics from ClickHouse in `meta` response field

---
 src/fetch/balance.ts   |  3 +--
 src/fetch/supply.ts    |  3 +--
 src/fetch/transfers.ts |  3 +--
 src/fetch/utils.ts     | 15 +++++++++------
 4 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/src/fetch/balance.ts b/src/fetch/balance.ts
index d470c97..56172d9 100644
--- a/src/fetch/balance.ts
+++ b/src/fetch/balance.ts
@@ -23,8 +23,7 @@ export default async function (req: Request) {
 
         return toJSON(
             addMetadata(
-                response.data,
-                response.rows_before_limit_at_least,
+                response,
                 parseLimit(searchParams.get("limit")),
                 parsePage(searchParams.get("page"))
             )
diff --git a/src/fetch/supply.ts b/src/fetch/supply.ts
index 280ac50..2838e78 100644
--- a/src/fetch/supply.ts
+++ b/src/fetch/supply.ts
@@ -23,8 +23,7 @@ export default async function (req: Request) {
 
         return toJSON(
             addMetadata(
-                response.data,
-                response.rows_before_limit_at_least,
+                response,
                 parseLimit(searchParams.get("limit")),
                 parsePage(searchParams.get("page"))
             )
diff --git a/src/fetch/transfers.ts b/src/fetch/transfers.ts
index 5ec0b8d..26aaeb5 100644
--- a/src/fetch/transfers.ts
+++ b/src/fetch/transfers.ts
@@ -15,8 +15,7 @@ export default async function (req: Request) {
         
         return toJSON(
             addMetadata(
-                response.data,
-                response.rows_before_limit_at_least,
+                response,
                 parseLimit(searchParams.get("limit")),
                 parsePage(searchParams.get("page"))
             )
diff --git a/src/fetch/utils.ts b/src/fetch/utils.ts
index 2601853..be97426 100644
--- a/src/fetch/utils.ts
+++ b/src/fetch/utils.ts
@@ -1,16 +1,19 @@
+import { Query } from "../clickhouse/makeQuery.js";
+
 export function toJSON(data: any, status: number = 200) {
     return new Response(JSON.stringify(data), { status, headers: { "Content-Type": "application/json" } });
 }
 
-export function addMetadata(data: any[], total_before_limit: number, limit: number, page: number) {
+export function addMetadata(response: Query<any>, req_limit: number, req_page: number) {
     // TODO: Catch page number greater than total_pages and return error
     return {
-        data,
+        data: response.data,
         meta: {
-            "next_page": (page * limit >= total_before_limit) ? page : page + 1,
-            "previous_page": (page <= 1) ? page : page - 1,
-            "total_pages": Math.ceil(total_before_limit / limit),
-            "total_results": total_before_limit
+            statistics: response.statistics,
+            "next_page": (req_page * req_limit >= response.rows_before_limit_at_least) ? req_page : req_page + 1,
+            "previous_page": (req_page <= 1) ? req_page : req_page - 1,
+            "total_pages": Math.ceil( response.rows_before_limit_at_least / req_limit),
+            "total_results": response.rows_before_limit_at_least
         }
     }
 }
\ No newline at end of file