From 5c37f87a58ef5d84a183cb042758a25a4b9cc40d Mon Sep 17 00:00:00 2001
From: Adam Soltys <adam@coinos.io>
Date: Wed, 18 Dec 2024 13:42:22 -0800
Subject: printer page

---
 src/routes/(app)/printer/+page.server.ts |  18 ++++++
 src/routes/(app)/printer/+page.svelte    | 100 +++++++++++++++++++++++++++++++
 2 files changed, 118 insertions(+)
 create mode 100644 src/routes/(app)/printer/+page.server.ts
 create mode 100644 src/routes/(app)/printer/+page.svelte

(limited to 'src/routes/(app)/printer')

diff --git a/src/routes/(app)/printer/+page.server.ts b/src/routes/(app)/printer/+page.server.ts
new file mode 100644
index 00000000..e9553f33
--- /dev/null
+++ b/src/routes/(app)/printer/+page.server.ts
@@ -0,0 +1,18 @@
+import { fd } from "$lib/utils";
+import { hex } from "@scure/base";
+
+export const actions = {
+	default: async ({ fetch, request }) => {
+		const body = await fd(request);
+		const res = await fetch("/api/printer", {
+			method: "POST",
+			body: JSON.stringify(body),
+			headers: {
+				"content-type": "application/json",
+				accept: "application/octet-stream",
+			},
+		});
+
+		return { data: hex.encode(new Uint8Array(await res.arrayBuffer())) };
+	},
+};
diff --git a/src/routes/(app)/printer/+page.svelte b/src/routes/(app)/printer/+page.svelte
new file mode 100644
index 00000000..c1e6ee82
--- /dev/null
+++ b/src/routes/(app)/printer/+page.svelte
@@ -0,0 +1,100 @@
+<script>
+  import { enhance } from "$app/forms";
+  import { ESPLoader, Transport } from "esptool-js";
+  import { hex } from "@scure/base";
+
+  function bs(uint8Array) {
+    let binaryString = "";
+    const chunkSize = 0x8000; // 32,768 bytes (safe limit)
+
+    for (let i = 0; i < uint8Array.length; i += chunkSize) {
+      const chunk = uint8Array.subarray(i, i + chunkSize);
+      binaryString += String.fromCharCode(...chunk);
+    }
+
+    return binaryString;
+  }
+
+  let { form } = $props();
+
+  const address = 0x3d0000;
+  const baudrate = 921600;
+
+  let file = $state();
+  let ssid = $state();
+  let key = $state();
+  let username = $state();
+  let password = $state();
+  let esploader = $state();
+  let data = $derived(form ? hex.decode(form.data) : undefined);
+
+  let chip, transport;
+  // let data = $state();
+  let connect = async () => {
+    try {
+      let device = await navigator.serial.requestPort({});
+      transport = new Transport(device, true);
+
+      esploader = new ESPLoader({
+        transport,
+        baudrate,
+      });
+
+      chip = await esploader.main();
+    } catch (e) {
+      console.log(e);
+    }
+  };
+
+  let progress = $state();
+  let flash = async () => {
+    let fileArray = [{ data: bs(data), address }];
+
+    const flashOptions = {
+      fileArray,
+      flashSize: "keep",
+      eraseAll: false,
+      compress: true,
+      reportProgress: (fileIndex, written, total) => {
+        progress = parseInt((written / total) * 100);
+      },
+    };
+
+    await esploader.writeFlash(flashOptions);
+  };
+</script>
+
+<div class="container px-4 max-w-lg mx-auto space-y-5 mt-20">
+  <h1 class="px-3 md:px-0 text-center text-3xl md:text-4xl font-semibold">
+    Printer
+  </h1>
+
+  {#if esploader}
+    {#if data}
+      {#if progress}
+        <div class="text-center text-2xl">Done!</div>
+      {:else}
+        <div>Generated config file (<b>{data.length * 2} bytes</b>)</div>
+        <button class="btn" onclick={flash}>Flash</button>
+      {/if}
+    {:else}
+      <form method="POST" use:enhance class="space-y-2">
+        <input name="ssid" bind:value={ssid} placeholder="wifi ssid" />
+        <input name="key" bind:value={key} placeholder="wifi pass" />
+        <input
+          name="username"
+          bind:value={username}
+          placeholder="coinos username"
+        />
+        <input
+          name="password"
+          bind:value={password}
+          placeholder="coinos password"
+        />
+        <button type="submit" class="btn">Generate Config</button>
+      </form>
+    {/if}
+  {:else}
+    <button class="btn" onclick={connect}>Connect</button>
+  {/if}
+</div>
-- 
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