From 257fa54da6b732908ce3d3351bb318fad6b7cdca Mon Sep 17 00:00:00 2001
From: lifegpc <g1710431395@gmail.com>
Date: Sat, 26 Aug 2023 22:42:25 +0800
Subject: [PATCH] Bug fix

---
 routes/thumbnail/[id].ts | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/routes/thumbnail/[id].ts b/routes/thumbnail/[id].ts
index bbe9ee3..6d91a08 100644
--- a/routes/thumbnail/[id].ts
+++ b/routes/thumbnail/[id].ts
@@ -2,7 +2,11 @@ import { Handlers } from "$fresh/server.ts";
 import { exists } from "std/fs/exists.ts";
 import { get_task_manager } from "../../server.ts";
 import { parse_int } from "../../server/parse_form.ts";
-import { generate_filename, ThumbnailConfig } from "../../thumbnail/base.ts";
+import {
+    generate_filename,
+    ThumbnailConfig,
+    ThumbnailGenMethod,
+} from "../../thumbnail/base.ts";
 import { sure_dir } from "../../utils.ts";
 import {
     get_file_response,
@@ -50,23 +54,28 @@ export const handler: Handlers = {
         const width = await parse_int(u.searchParams.get("width"), null);
         const height = await parse_int(u.searchParams.get("height"), null);
         const quality = await parse_int(u.searchParams.get("quality"), 1);
-        const cfg: ThumbnailConfig = { width: 0, height: 0, quality };
+        const cfg: ThumbnailConfig = {
+            width: 0,
+            height: 0,
+            quality,
+            method: ThumbnailGenMethod.Unknown,
+        };
         if (width !== null && height !== null) {
             cfg.width = width;
             cfg.height = height;
         } else if (width !== null) {
             cfg.width = width;
-            cfg.height = Math.round(f.height / f.width * width);
+            cfg.height = Math.floor(f.height / f.width * width);
         } else if (height !== null) {
             cfg.height = height;
-            cfg.width = Math.round(f.width / f.height * height);
+            cfg.width = Math.floor(f.width / f.height * height);
         } else {
             if (f.width > f.height) {
                 cfg.width = max;
-                cfg.height = Math.round(f.height / f.width * max);
+                cfg.height = Math.floor(f.height / f.width * max);
             } else {
                 cfg.height = max;
-                cfg.width = Math.round(f.width / f.height * max);
+                cfg.width = Math.floor(f.width / f.height * max);
             }
         }
         const output = generate_filename(b, f, cfg);