From 64a1cd5ae5a9cdefe0435bf8a68b34e176cc1a9f Mon Sep 17 00:00:00 2001
From: Rajil Bajracharya <imrb1213@gmail.com>
Date: Tue, 13 Feb 2024 10:47:48 +0545
Subject: [PATCH] feat: support non-integer timezone offsets

---
 src/config.rs | 14 +++++++-------
 src/main.rs   |  8 +++++---
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/src/config.rs b/src/config.rs
index b8a4dec..3d8e60f 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -13,7 +13,7 @@ static DEFAULT_ARROW_SEPARATOR_3: &str = "";
 static DEFAULT_TEXT_ALIGN: &str = "right";
 
 pub struct Config {
-    timezone: LinkedHashMap<String, i32>,
+    timezone: LinkedHashMap<String, f64>,
     default_timezone: String,
     background_color: (u8, u8, u8),
     foreground_color: (u8, u8, u8),
@@ -28,8 +28,8 @@ pub struct Config {
 impl Default for Config {
     fn default() -> Self {
         let default_timezone = DEFAULT_TIMEZONE;
-        let mut timezone: LinkedHashMap<String, i32> = LinkedHashMap::new();
-        timezone.insert(default_timezone.to_string(), 0);
+        let mut timezone: LinkedHashMap<String, f64> = LinkedHashMap::new();
+        timezone.insert(default_timezone.to_string(), 0.0);
         Config {
             timezone,
             default_timezone: default_timezone.to_string(),
@@ -84,10 +84,10 @@ impl Config {
         timezone.to_string()
     }
 
-    pub fn get_timezone_offset(&self, timezone: &str) -> i32 {
+    pub fn get_timezone_offset(&self, timezone: &str) -> f64 {
         match self.timezone.get(timezone) {
             Some(value) => *value,
-            None => 0,
+            None => 0.0,
         }
     }
 
@@ -125,7 +125,7 @@ impl Config {
     }
 
     pub fn configuration(&mut self, configuration: &BTreeMap<String, String>) {
-        let mut timezone: LinkedHashMap<String, i32> = LinkedHashMap::new();
+        let mut timezone: LinkedHashMap<String, f64> = LinkedHashMap::new();
         let mut default_timezone: Option<String> = None;
 
         for (key, value) in configuration {
@@ -135,7 +135,7 @@ impl Config {
                 | "timezone6" | "timezone7" | "timezone8" | "timezone9" => {
                     let value: Vec<&str> = value.split('/').collect();
                     if value.len() == 2 {
-                        if let Ok(offset) = value[1].parse() {
+                        if let Ok(offset) = value[1].parse::<f64>() {
                             timezone.insert(value[0].trim().to_string(), offset);
                         }
                     }
diff --git a/src/main.rs b/src/main.rs
index a4a3da8..729ac20 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -14,7 +14,7 @@ static INTERVAL_TIME: f64 = 1.0;
 struct State {
     now: Option<DateTime<Utc>>,
     timezone: String,
-    timezone_offset: i32,
+    timezone_offset: f64,
     before_minute: u32,
     visible: bool,
     line: Line,
@@ -164,8 +164,10 @@ impl State {
     }
 
     fn now(&self) -> Option<DateTime<FixedOffset>> {
-        self.now
-            .map(|now| now.with_timezone(&FixedOffset::east(&self.timezone_offset * 3600)))
+        // `as i32` performs automatic truncation and saturation as of Rust 1.45.0
+        self.now.map(|now| {
+            now.with_timezone(&FixedOffset::east((&self.timezone_offset * 3600.0) as i32))
+        })
     }
 
     fn write_now(&self) {