From 3e060b80428943c6562250a6ff77eff10a0259b7 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Mon, 24 Oct 2022 10:46:14 +0200
Subject: repo: integrate packages from former merchant-backoffice.git

---
 packages/demobank-ui/src/components/FileButton.tsx | 57 ++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 packages/demobank-ui/src/components/FileButton.tsx

(limited to 'packages/demobank-ui/src/components/FileButton.tsx')

diff --git a/packages/demobank-ui/src/components/FileButton.tsx b/packages/demobank-ui/src/components/FileButton.tsx
new file mode 100644
index 000000000..dba86ccbf
--- /dev/null
+++ b/packages/demobank-ui/src/components/FileButton.tsx
@@ -0,0 +1,57 @@
+import { h, VNode } from 'preact';
+import { useRef, useState } from 'preact/hooks';
+
+const MAX_IMAGE_UPLOAD_SIZE = 1024 * 1024;
+
+export interface FileTypeContent {
+  content: string;
+  type: string;
+  name: string;
+}
+
+interface Props {
+  label: string;
+  onChange: (v: FileTypeContent | undefined) => void;
+}
+export function FileButton(props: Props): VNode {
+  const fileInputRef = useRef<HTMLInputElement>(null);
+  const [sizeError, setSizeError] = useState(false);
+  return (
+    <div>
+      <button class="button" onClick={(e) => fileInputRef.current?.click()}>
+        <span>{props.label}</span>
+      </button>
+      <input
+        ref={fileInputRef}
+        style={{ display: 'none' }}
+        type="file"
+        onChange={(e) => {
+          const f: FileList | null = e.currentTarget.files;
+          if (!f || f.length != 1) 
+            return props.onChange(undefined);
+          
+          console.log(f);
+          if (f[0].size > MAX_IMAGE_UPLOAD_SIZE) {
+            setSizeError(true);
+            return props.onChange(undefined);
+          }
+          setSizeError(false);
+          return f[0].arrayBuffer().then((b) => {
+            const content = new Uint8Array(b).reduce(
+              (data, byte) => data + String.fromCharCode(byte),
+              '',
+            );
+            return props.onChange({
+              content,
+              name: f[0].name,
+              type: f[0].type,
+            });
+          });
+        }}
+      />
+      {sizeError && (
+        <p class="help is-danger">File should be smaller than 1 MB</p>
+      )}
+    </div>
+  );
+}
-- 
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