From 626b2cb311268efa308a86efad7c6679fb205b6d Mon Sep 17 00:00:00 2001
From: Jesse Wierzbinski <contact@cpluspatch.com>
Date: Wed, 13 Mar 2024 12:02:01 -1000
Subject: [PATCH] Preliminary multi-protocol support work

---
 packages/protocol-translator/index.ts         | 48 +++++++++++++++++++
 packages/protocol-translator/package.json     |  6 +++
 .../protocols/activitypub.ts                  | 11 +++++
 3 files changed, 65 insertions(+)
 create mode 100644 packages/protocol-translator/index.ts
 create mode 100644 packages/protocol-translator/package.json
 create mode 100644 packages/protocol-translator/protocols/activitypub.ts

diff --git a/packages/protocol-translator/index.ts b/packages/protocol-translator/index.ts
new file mode 100644
index 00000000..06de64e0
--- /dev/null
+++ b/packages/protocol-translator/index.ts
@@ -0,0 +1,48 @@
+import type { APActor, APNote } from "activitypub-types";
+import { ActivityPubTranslator } from "./protocols/activitypub";
+
+export enum SupportedProtocols {
+	ACTIVITYPUB = "activitypub",
+}
+
+/**
+ * ProtocolTranslator
+ * @summary Translates between federation protocols such as ActivityPub to Lysand and back
+ * @description This class is responsible for translating between federation protocols such as ActivityPub to Lysand and back.
+ * This class is not meant to be instantiated directly, but rather for its children to be used.
+ */
+export class ProtocolTranslator {
+	static auto(object: any) {
+		const protocol = this.recognizeProtocol(object);
+		switch (protocol) {
+			case SupportedProtocols.ACTIVITYPUB:
+				return new ActivityPubTranslator();
+			default:
+				throw new Error("Unknown protocol");
+		}
+	}
+
+	/**
+	 * Translates an ActivityPub actor to a Lysand user
+	 * @param data Raw JSON-LD data from an ActivityPub actor
+	 */
+	user(data: APActor) {
+		//
+	}
+
+	/**
+	 * Translates an ActivityPub note to a Lysand status
+	 * @param data Raw JSON-LD data from an ActivityPub note
+	 */
+	status(data: APNote) {
+		//
+	}
+
+	/**
+	 * Automatically recognizes the protocol of a given object
+	 */
+	private static recognizeProtocol(object: any) {
+		// Temporary stub
+		return SupportedProtocols.ACTIVITYPUB;
+	}
+}
diff --git a/packages/protocol-translator/package.json b/packages/protocol-translator/package.json
new file mode 100644
index 00000000..c5e710d0
--- /dev/null
+++ b/packages/protocol-translator/package.json
@@ -0,0 +1,6 @@
+{
+    "name": "protocol-translator",
+    "version": "0.0.0",
+    "main": "index.ts",
+    "dependencies": {}
+}
\ No newline at end of file
diff --git a/packages/protocol-translator/protocols/activitypub.ts b/packages/protocol-translator/protocols/activitypub.ts
new file mode 100644
index 00000000..c3425d04
--- /dev/null
+++ b/packages/protocol-translator/protocols/activitypub.ts
@@ -0,0 +1,11 @@
+import { ProtocolTranslator } from "..";
+
+export class ActivityPubTranslator extends ProtocolTranslator {
+    constructor() {
+        super();
+    }
+
+    user() {
+
+    }
+}
\ No newline at end of file