From 2c3a7c253b1e0bc996a50e5f64fc589eb660c03c Mon Sep 17 00:00:00 2001
From: benthecarman <benthecarman@live.com>
Date: Mon, 5 Feb 2024 21:04:14 +0000
Subject: [PATCH] Add lightning regex

---
 Cargo.lock   |  2 ++
 Cargo.toml   |  2 ++
 src/utils.rs | 15 ++++++++++++++-
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/Cargo.lock b/Cargo.lock
index 7184f57..65e4325 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2604,6 +2604,7 @@ dependencies = [
  "futures",
  "hex",
  "itertools",
+ "lazy_static",
  "lightning",
  "lightning-invoice",
  "lnurl-rs",
@@ -2611,6 +2612,7 @@ dependencies = [
  "nostr",
  "nostr-sdk",
  "pretty_env_logger",
+ "regex",
  "serde",
  "serde_json",
  "tokio",
diff --git a/Cargo.toml b/Cargo.toml
index e04ea05..88e4f3d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,6 +30,8 @@ serde_json = "1.0"
 tokio = { version = "1.12.0", features = ["full"] }
 tower-http = { version = "0.4.0", features = ["cors"] }
 urlencoding = "2.1.2"
+regex = "1.10.2"
+lazy_static = "1.4"
 
 [dev-dependencies]
 dotenv = "0.15.0"
diff --git a/src/utils.rs b/src/utils.rs
index eef5b61..6da6c20 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -1,12 +1,25 @@
 use bitcoin::bip32::ExtendedPrivKey;
 use bitcoin::hashes::{sha256, Hash};
+use lazy_static::lazy_static;
 use nostr::key::XOnlyPublicKey;
+use regex::Regex;
+
+lazy_static! {
+    static ref LN_REG: Regex =
+        Regex::new(r"^\u{26A1}[\u{FE00}-\u{FE0F}]?$").expect("Invalid regex");
+}
 
 pub fn map_emoji(emoji: &str) -> Option<&str> {
     match emoji {
         "❤" | "+" | "" => Some("❤️"),
         "⚡️" => Some("⚡"),
-        _ => None,
+        str => {
+            if LN_REG.is_match(str) {
+                Some("⚡")
+            } else {
+                None
+            }
+        }
     }
 }