Add weekend styling option

CHANGELOG.md

@@ -13,6 +13,7 @@
 - Add strict clippy lints to improve code consistency and readability.
 - Expand workflow clippy task to lint all-features in workspace.
 - Add docs badge to readme.
+- Add date select option to apply style to weekend days [#182](https://github.com/mikaelmello/inquire/pull/182).
 
 ### Fixes
 

inquire/src/date_utils.rs

@@ -1,6 +1,6 @@
 use core::panic;
 
-use chrono::NaiveDate;
+use chrono::{Datelike, NaiveDate, Weekday};
 
 pub fn get_current_date() -> NaiveDate {
     chrono::Local::now().date_naive()
@@ -27,3 +27,7 @@ pub fn get_month(month: u32) -> chrono::Month {
         _ => panic!("Invalid month"),
     }
 }
+
+pub fn is_weekend(date: NaiveDate) -> bool {
+    date.weekday() == Weekday::Sat || date.weekday() == Weekday::Sun
+}

inquire/src/ui/backend.rs

@@ -578,7 +578,9 @@ pub mod date {
 
     use chrono::{Datelike, Duration};
 
-    use crate::{date_utils::get_start_date, terminal::Terminal, ui::Styled};
+    use crate::{
+        date_utils::get_start_date, date_utils::is_weekend, terminal::Terminal, ui::Styled,
+    };
 
     use super::{Backend, CommonBackend};
 
@@ -695,6 +697,8 @@ pub mod date {
                         }
                     } else if date_it == today {
                         style_sheet = self.render_config.calendar.today_date;
+                    } else if is_weekend(date_it) {
+                        style_sheet = self.render_config.calendar.weekend;
                     } else if date_it.month() != month.number_from_month() {
                         style_sheet = self.render_config.calendar.different_month_date;
                     }

inquire/src/ui/render_config.rs

@@ -467,6 +467,9 @@ pub mod calendar {
         /// Style sheet for dates that can not be selected due to the
         /// min/max settings.
         pub unavailable_date: StyleSheet,
+
+        /// Style sheet for weekends
+        pub weekend: StyleSheet,
     }
 
     impl<'a> CalendarRenderConfig<'a> {
@@ -480,6 +483,7 @@ pub mod calendar {
                 today_date: StyleSheet::empty(),
                 different_month_date: StyleSheet::empty(),
                 unavailable_date: StyleSheet::empty(),
+                weekend: StyleSheet::empty(),
             }
         }
 
@@ -497,6 +501,7 @@ pub mod calendar {
                 today_date: StyleSheet::empty().with_fg(Color::LightGreen),
                 different_month_date: StyleSheet::empty().with_fg(Color::DarkGrey),
                 unavailable_date: StyleSheet::empty().with_fg(Color::DarkGrey),
+                weekend: StyleSheet::empty().with_fg(Color::DarkRed),
             }
         }