From 90c8097fcc538e057c8add7a6e972d127b9428cf Mon Sep 17 00:00:00 2001
From: mplorentz <mplorentz@users.noreply.github.com>
Date: Wed, 22 May 2024 10:48:29 -0400
Subject: [PATCH 1/3] Handle nos:nevent and similar links

---
 Nos/Service/DeepLinkService.swift | 44 ++++++++++++++++++++++++++++---
 1 file changed, 41 insertions(+), 3 deletions(-)

diff --git a/Nos/Service/DeepLinkService.swift b/Nos/Service/DeepLinkService.swift
index 8b9815cb7..5dc95fd10 100644
--- a/Nos/Service/DeepLinkService.swift
+++ b/Nos/Service/DeepLinkService.swift
@@ -1,26 +1,64 @@
 import Foundation
 import Logger
+import Dependencies
 
 enum DeepLinkService {
     
-    static let nosURLScheme = "nos"
+    /// Returns the URL scheme for Nos, which varies by build (dev, staging, production). 
+    static var nosURLScheme: String? = { 
+        if let urlTypes = Bundle.main.infoDictionary?["CFBundleURLTypes"] as? [[String: Any]] {
+            for urlTypeDictionary in urlTypes {
+                guard let urlSchemes = urlTypeDictionary["CFBundleURLSchemes"] as? [String] else { continue }
+                guard let externalURLScheme = urlSchemes.first else { continue }
+                return externalURLScheme
+            }
+        }
+        
+        return nil
+    }()
     
     @MainActor static func handle(_ url: URL, router: Router) {
+        @Dependency(\.persistenceController) var persistenceController
+        @Dependency(\.router) var router
         Log.info("handling link \(url.absoluteString)")
         
         let components = URLComponents(url: url, resolvingAgainstBaseURL: true)
         
-        guard let components else {
+        guard let components, let nosURLScheme, components.scheme == nosURLScheme else {
             return
         }
         
-        if components.scheme == nosURLScheme, components.host == "note", components.path == "/new" {
+        if components.host == "note", components.path == "/new" {
             let noteContents = components
                 .queryItems?
                 .first(where: { $0.name == "contents" })?
                 .value
             
             router.showNewNoteView(contents: noteContents)
+        } else {
+            /// Check for links like nos:nevent123174
+            let firstPathComponent = components.path
+            let unformattedRegex = /(?:nostr:)?(?<entity>((npub1|note1|nprofile1|nevent1)[a-zA-Z0-9]{58,255}))/
+            do {
+                if let match = try unformattedRegex.firstMatch(in: firstPathComponent) {
+                    let entity = match.1
+                    let string = String(entity)
+                    
+                    let (humanReadablePart, checksum) = try Bech32.decode(string)
+                    
+                    if humanReadablePart == Nostr.publicKeyPrefix, let hex = SHA256Key.decode(base5: checksum) {
+                        router.push(try Author.findOrCreate(by: hex, context: persistenceController.viewContext))
+                    } else if humanReadablePart == Nostr.notePrefix, let hex = SHA256Key.decode(base5: checksum) {
+                        router.push(try Event.findOrCreateStubBy(id: hex, context: persistenceController.viewContext))
+                    } else if humanReadablePart == Nostr.profilePrefix, let hex = TLV.decode(checksum: checksum) {
+                        router.push(try Author.findOrCreate(by: hex, context: persistenceController.viewContext))
+                    } else if humanReadablePart == Nostr.eventPrefix, let hex = TLV.decode(checksum: checksum) {
+                        router.push(try Event.findOrCreateStubBy(id: hex, context: persistenceController.viewContext))
+                    } 
+                }
+            } catch {
+                Log.optional(error)
+            }
         }
     }
 }

From b1d51fc3816fb5f6b47f7375e5b730ddafc311cd Mon Sep 17 00:00:00 2001
From: mplorentz <mplorentz@users.noreply.github.com>
Date: Thu, 30 May 2024 13:06:56 -0400
Subject: [PATCH 2/3] Update changelog

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e679f5874..dbb524c8b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+- Added support for opening njump.me content in Nos.
 - Fixed a crash on logout
 
 ## [0.1.15] - 2024-05-29Z

From 2cdc8a10594987881bcab0bf486c5ba5fb7978e0 Mon Sep 17 00:00:00 2001
From: mplorentz <mplorentz@users.noreply.github.com>
Date: Wed, 5 Jun 2024 14:18:22 -0400
Subject: [PATCH 3/3] fix swiftlint error

---
 Nos/Service/DeepLinkService.swift | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Nos/Service/DeepLinkService.swift b/Nos/Service/DeepLinkService.swift
index 5dc95fd10..e0145d78d 100644
--- a/Nos/Service/DeepLinkService.swift
+++ b/Nos/Service/DeepLinkService.swift
@@ -38,6 +38,7 @@ enum DeepLinkService {
         } else {
             /// Check for links like nos:nevent123174
             let firstPathComponent = components.path
+            // swiftlint:disable:next opening_brace 
             let unformattedRegex = /(?:nostr:)?(?<entity>((npub1|note1|nprofile1|nevent1)[a-zA-Z0-9]{58,255}))/
             do {
                 if let match = try unformattedRegex.firstMatch(in: firstPathComponent) {