[feat] compressed data for local

src/ts/exif.ts

@@ -20,6 +20,23 @@ export const PngMetadata = {
         const encoded = encode(chunks);
         return encoded
     },
+    writeStream:(pngBuffer: Uint8Array, metadata: Record<string, string>): Buffer => {
+        let chunks:{
+            name:string
+            data:Uint8Array
+        }[] = extract(Buffer.from(pngBuffer));
+
+        chunks = chunks.filter((v) => {
+            return v.name.toLocaleLowerCase() !== 'text'
+        })
+
+        for (const key in metadata) {
+            const value = metadata[key];
+            chunks.splice(-1, 0, textKey.encode(key, value))
+        }
+        const encoded = encode(chunks);
+        return encoded
+    },
     filter: (pngBuffer: Uint8Array) => {
         let chunks:{
             name:string

src/ts/storage/risuSave.ts

@@ -1,11 +1,16 @@
 import { decode, encode } from "@msgpack/msgpack";
 import { isEqual } from "lodash";
 import pako from "pako";
+import { isTauri } from "./globalApi";
 
 
 export function encodeRisuSave(data:any){
     const risuSaveHeader = new Uint8Array(Buffer.from("\u0000\u0000RISU",'utf-8'))
     const encoded = encode(data)
+
+    if(isTauri){
+        return pako.deflate(encoded)
+    }
     const mergedArray = new Uint8Array(risuSaveHeader.length + encoded.length);
     mergedArray.set(risuSaveHeader);
     mergedArray.set(encoded, risuSaveHeader.length);
@@ -22,7 +27,12 @@ export function decodeRisuSave(data:Uint8Array){
     }
     else{
         try {
-            return JSON.parse(Buffer.from(pako.inflate(Buffer.from(data))).toString('utf-8'))            
+            const buf = Buffer.from(pako.inflate(Buffer.from(data)))
+            try {
+                return JSON.parse(buf.toString('utf-8'))                            
+            } catch (error) {
+                return decode(buf)
+            }
         } catch (error) {
             const realData = data.subarray(risuSaveHeader.length)
             const dec = decode(realData)