add imageUrl , better size config and fix extraargs

index.ts

@@ -12,12 +12,30 @@ app.post('/render', async (c) => {
     }
 
     const body = await c.req.json().catch(() => null)
-    if (!body?.emoji) {
-        return c.text('Missing emoji in body', 400)
+
+    let extraArgs = ""
+
+    let filename;
+    let size;
+
+    if (body.size) {
+        if (typeof body.size !== 'string' || !/^\d{1,4}x\d{1,4}$/.test(body.size)) {
+        return c.text('size must be a string in the format <number>x<number>', 400);
+        }
+        const [w, h] = body.size.split('x').map(Number);
+        if (
+            isNaN(w) || isNaN(h) ||
+            w < 1 || h < 1 ||
+            w > 1000 || h > 1000
+        ) {
+            return c.text('size must be in the format <number>x<number> with max 1000x1000', 400);
         }
 
-    let extraArgs = "-b"
+        size = { width: w, height: h };
 
+        extraArgs += ` -W ${w} -H ${h}`;
+    }   
+    extraArgs += " -b"
     if(body?.extraArgs) {
         if (typeof body.extraArgs !== 'string') {
             return c.text('extraArgs must be a string', 400)
@@ -25,11 +43,14 @@ app.post('/render', async (c) => {
         extraArgs = body.extraArgs;
     }
 
-    if(body.size) {
-        if (typeof body.size !== 'number' || ![32, 64, 128].includes(body.size)) {
-            return c.text('size must be one of 32, 64, or 128', 400)
-        }
-        joypixels.emojiSize = body.size.toString();
+    if(body.emoji) {
+        if(size) {
+            const inputSize = Math.min(size.width, size.height);
+            const allowedSizes = [32, 64, 128];
+            let closest = allowedSizes.reduce((prev, curr) =>
+                Math.abs(curr - inputSize) < Math.abs(prev - inputSize) ? curr : prev
+            );
+            joypixels.emojiSize = closest;
         }
 
         const emojiHtml = joypixels.toImage(body.emoji)
@@ -40,7 +61,7 @@ app.post('/render', async (c) => {
 
         let emojiUrl = urlMatch[1]
         console.log(emojiUrl)
-    const filename = "cache/" + emojiUrl.split('/').pop().split(".")[0] + `-${joypixels.emojiSize}.png`;
+        filename = "cache/" + emojiUrl.split('/').pop().split(".")[0] + `-${size ? body.size : joypixels.emojiSize}.png`;
         if(!existsSync(filename)) {
 
             // Download the image
@@ -59,9 +80,36 @@ app.post('/render', async (c) => {
             // Get filename from URL
             writeFileSync(filename, buffer)
         }
+    } else if(body.imageUrl) {
+        const imageUrl = body.imageUrl;
+        filename = `cache/${imageUrl.split('/').pop()}-${size ? body.size : "original"}`;
+        if (!existsSync(filename)) {
+            const res = await fetch(imageUrl);
+            if (!res.ok) {
+                return c.text('Failed to download image', 500);
+            }
+            const arrayBuffer = await res.arrayBuffer();
+            const buffer = Buffer.from(arrayBuffer);
+
+            if (!existsSync('cache')) {
+                mkdirSync('cache');
+            }
+            
+            writeFileSync(filename, buffer);
+        }
+        
+    } else {
+        return c.text('Please provide either emoji or imageUrl', 400);
+    }
 
     if(!existsSync(filename+".bimg")) {
-       await $`sanjuuni --disable-opencl ${extraArgs} -i ${filename} -o ${filename+".bimg"}`
+        let sanjuuniPath = "sanjuuni";
+        
+        if(existsSync("./sanjuuni")) {
+            sanjuuniPath = "./sanjuuni";
+        }
+        console.log(`${sanjuuniPath} --disable-opencl ${extraArgs} -i ${filename} -o ${filename+".bimg"}`)
+        await $`${sanjuuniPath} --disable-opencl ${extraArgs} -i ${filename} -o ${filename+".bimg"}`
     }
 
     const bimg = readFileSync(filename + ".bimg", "utf8");