From a434c9a50b60a1c4a1b99f28eee7b5fbc66ce016 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=98=BF=E5=8D=A1=E7=90=B3?= <hufan.akarin@gmail.com>
Date: Sun, 12 May 2019 15:02:54 +0800
Subject: [PATCH] =?UTF-8?q?refactor:=20bangumi=20=E6=AF=8F=E6=97=A5?=
 =?UTF-8?q?=E6=94=BE=E9=80=81=E6=B7=BB=E5=8A=A0id=20=E4=BF=AE=E6=94=B9?=
 =?UTF-8?q?=E7=BC=93=E5=AD=98=E6=97=B6=E9=97=B4=20(#2097)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

* update: bangumi 每日放送添加id 修改缓存时间

* update: 恢复计算今日的方法
---
 lib/routes/bangumi/calendar/_base.js | 16 +++++++++++++++-
 lib/routes/bangumi/calendar/today.js | 15 +++++++++++----
 2 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/lib/routes/bangumi/calendar/_base.js b/lib/routes/bangumi/calendar/_base.js
index 06f4040f1..4af04917f 100644
--- a/lib/routes/bangumi/calendar/_base.js
+++ b/lib/routes/bangumi/calendar/_base.js
@@ -1,5 +1,19 @@
 const axios = require('../../../utils/axios');
 
+/** @type { (timezoneOffset: number) => Date } */
+const tomorrowMidnight = (timezoneOffset) => {
+    const result = new Date(Date.now());
+    const localHour = result.getHours() + timezoneOffset;
+    if (localHour < 0) {
+        result.setUTCHours(-timezoneOffset, 0, 0, 0);
+    } else if (localHour < 24) {
+        result.setUTCHours(24 - timezoneOffset, 0, 0, 0);
+    } else {
+        result.setUTCHours(48 - timezoneOffset, 0, 0, 0);
+    }
+    return result;
+};
+
 module.exports = async (ctx) => {
     const bgmCalendarUrl = 'https://api.bgm.tv/calendar';
     const bgmDataUrl = 'https://cdn.jsdelivr.net/npm/bangumi-data/dist/data.json';
@@ -33,7 +47,7 @@ module.exports = async (ctx) => {
                     data.items = items;
                 }
 
-                ctx.cache.set(url[i], JSON.stringify(data), 86400);
+                ctx.cache.set(url[i], JSON.stringify(data), tomorrowMidnight(8).getTime() - Date.now());
                 return Promise.resolve(data);
             }
         })
diff --git a/lib/routes/bangumi/calendar/today.js b/lib/routes/bangumi/calendar/today.js
index f6efaecac..e3e0ef805 100644
--- a/lib/routes/bangumi/calendar/today.js
+++ b/lib/routes/bangumi/calendar/today.js
@@ -4,10 +4,12 @@ module.exports = async (ctx) => {
     const [list, data] = await getData(ctx);
     const siteMeta = data.siteMeta;
 
-    const now = new Date(Date.now());
+    const today = new Date(Date.now());
 
-    now.setHours(now.getHours() + 9);
-    const day = now.getUTCDay();
+    // 将 UTC 时间向前移动9小时，即可在数值上表示东京时间
+    today.setUTCHours(today.getUTCHours() + 9);
+
+    const day = today.getUTCDay();
 
     const todayList = list.filter((l) => l.weekday.id % 7 === day)[0];
 
@@ -33,6 +35,9 @@ module.exports = async (ctx) => {
             updated.setMinutes(begin.getMinutes());
             updated.setSeconds(begin.getSeconds());
 
+            const link = `http://bangumi.tv/subject/${bgm.bgm_id}`;
+            const id = `${link}#${new Intl.DateTimeFormat('zh-CN').format(updated)}`;
+
             const image = `<img referrerpolicy="no-referrer" src=${bgm.image} />`;
             const html =
                 image +
@@ -51,6 +56,8 @@ module.exports = async (ctx) => {
                 '</ul>';
 
             return {
+                id,
+                guid: id,
                 title: [
                     bgm.title,
                     Object.values(bgm.titleTranslate)
@@ -59,7 +66,7 @@ module.exports = async (ctx) => {
                 ].join('｜'),
                 updated: updated.toISOString(),
                 pubDate: updated.toUTCString(),
-                link: `http://bangumi.tv/subject/${bgm.bgm_id}`,
+                link,
                 description: html,
                 content: { html },
             };