From b3589da4397a906a44ebdf77012a2c736d799d4d Mon Sep 17 00:00:00 2001
From: Il Harper <hi@ilharper.com>
Date: Tue, 5 Mar 2024 23:27:33 +0800
Subject: [PATCH] feat(api): implement chronocat.internal.assets.get

---
 .../src/api/internal/assets/get.ts            | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 packages/engine-chronocat-api/src/api/internal/assets/get.ts

diff --git a/packages/engine-chronocat-api/src/api/internal/assets/get.ts b/packages/engine-chronocat-api/src/api/internal/assets/get.ts
new file mode 100644
index 0000000..c35c8a4
--- /dev/null
+++ b/packages/engine-chronocat-api/src/api/internal/assets/get.ts
@@ -0,0 +1,31 @@
+import type { Media } from '@chronocat/red'
+import { ChatType } from '@chronocat/red'
+import type { ChronocatContext } from '@chronocat/shell'
+import { downloadRichMedia } from '../../../definitions/msgService'
+import { richMediaDownloadMap } from '../../../globalVars'
+
+export const buildAssetsGet =
+  (ctx: ChronocatContext) => async (raw: string) => {
+    const data = JSON.parse(
+      Buffer.from(raw, 'base64url').toString('utf-8'),
+    ) as Media
+
+    const downloadId = data.msgId + '::' + data.elementId
+
+    const downloadCompletePromise = new Promise<string>((res, rej) => {
+      richMediaDownloadMap[downloadId] = res
+      void ctx.chronocat.sleep(1000).then(rej)
+    })
+
+    if (data.chatType === ChatType.Private && !data.peerUid.startsWith('u_'))
+      data.peerUid = ctx.chronocat.uix.getUid(data.peerUid)!
+
+    await downloadRichMedia({
+      getReq: {
+        ...data,
+        downloadType: 1,
+      },
+    })
+
+    return await downloadCompletePromise
+  }