From 6d0179e4bf9b8fcc66dfef4f9a5d4c9dc20be00d Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 23 Feb 2026 04:36:35 +0000
Subject: [PATCH 1/3] Initial plan


From ed815b6b6dbabf574c78694a75dea78a8e28f3e5 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 23 Feb 2026 04:38:52 +0000
Subject: [PATCH 2/3] Change pre_release to Object and pack_id_table to inverse
 mapping Object

Co-authored-by: salix5 <2851577+salix5@users.noreply.github.com>
---
 package-lock.json   | 2 ++
 ygo-json-loader.mjs | 6 +++---
 ygo-query.mjs       | 8 ++++----
 3 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 05d5769..8e9b85c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -418,6 +418,7 @@
       "integrity": "sha512-UVJyE9MttOsBQIDKw1skb9nAwQuR5wuGD3+82K6JgJlm/Y+KI92oNsMNGZCYdDsVtRHSak0pcV5Dno5+4jh9sw==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -570,6 +571,7 @@
       "integrity": "sha512-20MV9SUdeN6Jd84xESsKhRly+/vxI+hwvpBMA93s+9dAcjdCuCojn4IqUGS3lvVaqjVYGYHSRMCpeFtF2rQYxQ==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.8.0",
         "@eslint-community/regexpp": "^4.12.2",
diff --git a/ygo-json-loader.mjs b/ygo-json-loader.mjs
index fa9f94c..b6dbd8c 100644
--- a/ygo-json-loader.mjs
+++ b/ygo-json-loader.mjs
@@ -56,9 +56,9 @@ export const md_table = Object.create(null);
 md_table['en'] = md_en_table;
 md_table['ja'] = md_jp_table;
 
-export const pre_release = new Map(Object.entries(pre_table));
+export const pre_release = pre_table;
 export const id_to_cid = inverse_mapping(cid_table);
-const pack_id_table = inverse_mapping(pre_release);
+const pack_id_table = Object.fromEntries(Object.entries(pre_release).map(([k, v]) => [v, k]));
 
 export const official_name = {
 	__proto__: null,
@@ -174,7 +174,7 @@ export function get_pack_name(id) {
 	if (id <= MAX_CARD_ID)
 		return '';
 	const pack_id = id - id % 1000;
-	const pack_name = pack_id_table.get(pack_id);
+	const pack_name = pack_id_table[pack_id];
 	if (!pack_name)
 		return '';
 	if (pack_name.charAt(0) === '_')
diff --git a/ygo-query.mjs b/ygo-query.mjs
index f762b8f..6af6a18 100644
--- a/ygo-query.mjs
+++ b/ygo-query.mjs
@@ -315,10 +315,10 @@ export function generate_condition(params, id_list) {
 		const pack = pack_list[params.pack].filter(x => Number.isSafeInteger(x) && x > 0);
 		qstr += ` AND ${list_condition('id', 'pack', pack, arg)}`;
 	}
-	else if (typeof params.pack === 'string' && pre_release.has(params.pack)) {
+	else if (typeof params.pack === 'string' && Object.hasOwn(pre_release, params.pack)) {
 		qstr += " AND (id BETWEEN $pack_begin AND $pack_end)";
-		arg.$pack_begin = pre_release.get(params.pack);
-		arg.$pack_end = pre_release.get(params.pack) + 500;
+		arg.$pack_begin = pre_release[params.pack];
+		arg.$pack_end = pre_release[params.pack] + 500;
 	}
 	else if (Number.isSafeInteger(params.limit) && params.limit > 0) {
 		arg.$limit = params.limit;
@@ -721,7 +721,7 @@ export function query_card(params) {
 		is_sorted = true;
 		meta.pack = params.pack;
 	}
-	else if (typeof params.pack === 'string' && pre_release.has(params.pack)) {
+	else if (typeof params.pack === 'string' && Object.hasOwn(pre_release, params.pack)) {
 		is_sorted = true;
 		meta.pack = params.pack;
 	}

From f385a521ec823f85ec9cf2cdcb8d2199de3d8bf9 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 23 Feb 2026 04:41:35 +0000
Subject: [PATCH 3/3] Revert unintended package-lock.json changes

Co-authored-by: salix5 <2851577+salix5@users.noreply.github.com>
---
 package-lock.json | 2 --
 1 file changed, 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 8e9b85c..05d5769 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -418,7 +418,6 @@
       "integrity": "sha512-UVJyE9MttOsBQIDKw1skb9nAwQuR5wuGD3+82K6JgJlm/Y+KI92oNsMNGZCYdDsVtRHSak0pcV5Dno5+4jh9sw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -571,7 +570,6 @@
       "integrity": "sha512-20MV9SUdeN6Jd84xESsKhRly+/vxI+hwvpBMA93s+9dAcjdCuCojn4IqUGS3lvVaqjVYGYHSRMCpeFtF2rQYxQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.8.0",
         "@eslint-community/regexpp": "^4.12.2",