From 8c52d1f31ac6066e178de994fec42a11ce018fde Mon Sep 17 00:00:00 2001
From: sommerfeld <sommerfeld@sommerfeld.dev>
Date: Fri, 5 Jul 2024 15:23:53 +0100
Subject: Print QRcode for nostrconnect URI

---
 Cargo.lock  | 7 +++++++
 Cargo.toml  | 1 +
 src/main.rs | 8 ++++++++
 3 files changed, 16 insertions(+)

diff --git a/Cargo.lock b/Cargo.lock
index 810b693..4438918 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1134,6 +1134,12 @@ dependencies = [
  "hex",
 ]
 
+[[package]]
+name = "qrcode"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23e719ca51966ff9f5a8436edb00d6115b3c606a0bb27c8f8ca74a38ff2b036d"
+
 [[package]]
 name = "quote"
 version = "1.0.36"
@@ -1760,6 +1766,7 @@ dependencies = [
  "nostr-signer",
  "pretty_env_logger",
  "procfs",
+ "qrcode",
  "serde",
  "serde_json",
  "tokio",
diff --git a/Cargo.toml b/Cargo.toml
index 3ecd886..8b9e8df 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,6 +20,7 @@ nostr-relay-pool = "0.32.0"
 nostr-sdk = { version = "0.32.0", default-features = false }
 nostr-signer = { version = "0.32.1", default-features = false, features = ["nip46"] }
 pretty_env_logger = "0.5.0"
+qrcode = { version = "0.14.0", default-features = false }
 serde = { version = "1.0.203", features = ["derive"] }
 serde_json = "1.0.118"
 tokio = { version = "1.38.0", features = ["rt-multi-thread", "signal", "time"] }
diff --git a/src/main.rs b/src/main.rs
index dcd28e6..dfbbc25 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -26,6 +26,7 @@ use nostr_sdk::{
 use nostr_signer::{Nip46Signer, NostrSigner};
 #[cfg(any(target_os = "linux", target_os = "android"))]
 use procfs::net::TcpState;
+use qrcode::{render::unicode, QrCode};
 use serde::{Deserialize, Serialize};
 use serde_json::{from_reader, to_string};
 #[cfg(unix)]
@@ -94,6 +95,13 @@ impl ClientData {
                 println!(
                     "Use your NIP46 signer app (e.g. Amber) to connect by using this URI:\n{uri}"
                 );
+                let code = QrCode::new(uri.clone()).unwrap();
+                let image = code
+                    .render::<unicode::Dense1x2>()
+                    .dark_color(unicode::Dense1x2::Light)
+                    .light_color(unicode::Dense1x2::Dark)
+                    .build();
+                println!("{}", image);
                 uri
             }
         };
-- 
cgit v1.2.3-70-g09d2