From 53f7a679a0cf7a510de13d67cf370988f71c0d08 Mon Sep 17 00:00:00 2001
From: Akshay <nerdy@peppe.rs>
Date: Sat, 6 Feb 2021 19:00:40 +0530
Subject: deprecate view_month_offset in favor of cursor

---
 src/keybinds.rs | 146 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 146 insertions(+)
 create mode 100644 src/keybinds.rs

(limited to 'src/keybinds.rs')

diff --git a/src/keybinds.rs b/src/keybinds.rs
new file mode 100644
index 0000000..1b9c234
--- /dev/null
+++ b/src/keybinds.rs
@@ -0,0 +1,146 @@
+use std::convert::From;
+
+use cursive::event::Event as CursiveEvent;
+use serde::ser;
+use serde::{self, Deserialize, Serialize, Serializer};
+
+#[derive(Debug, PartialEq)]
+struct Event(CursiveEvent);
+
+macro_rules! event {
+    ($thing:expr) => {
+        Event { 0: $thing };
+    };
+}
+
+impl<T> From<T> for Event
+where
+    T: AsRef<str>,
+{
+    fn from(key: T) -> Self {
+        let key = key.as_ref();
+        if key.len() == 1 {
+            // single key
+            return event!(CursiveEvent::Char(key.chars().nth(0).unwrap()));
+        } else if (key.starts_with("c-") || key.starts_with("C-")) && key.len() == 3 {
+            // ctrl-key
+            return event!(CursiveEvent::CtrlChar(key.chars().nth(2).unwrap()));
+        } else {
+            panic!(
+                r"Invalid keybind in configuration!
+                    (I intend to handle this error gracefully in the near future)"
+            );
+        }
+    }
+}
+
+enum Bind {
+    Char(char),
+    CtrlChar(char),
+    AltChar(char),
+}
+
+impl Serialize for Bind {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        match self {
+            Bind::Char(c) => serializer.serialize_newtype_variant("bind", 0, "regular", &c),
+            Bind::CtrlChar(c) => serializer.serialize_newtype_variant("bind", 0, "ctrl", &c),
+            Bind::AltChar(c) => serializer.serialize_newtype_variant("bind", 0, "alt", &c),
+        }
+    }
+}
+
+impl Deserialize for Bind {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        eprintln!("hell = {:#?}", hell);
+    }
+}
+
+impl From<Bind> for CursiveEvent {
+    fn from(key: Bind) -> Self {
+        match key {
+            Bind::Char(c) => CursiveEvent::Char(c),
+            Bind::CtrlChar(c) => CursiveEvent::Char(c),
+            Bind::AltChar(c) => CursiveEvent::AltChar(c),
+        }
+    }
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct KeyBinds {
+    grid: Movement,
+    cursor: Movement,
+    week_mode: Bind,
+    global_week_mode: Bind,
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct Movement {
+    up: Bind,
+    down: Bind,
+    left: Bind,
+    right: Bind,
+}
+
+impl Movement {
+    pub fn new(left: char, down: char, up: char, right: char) -> Self {
+        return Movement {
+            up: Bind::Char(up),
+            down: Bind::Char(down),
+            left: Bind::Char(left),
+            right: Bind::Char(right),
+        };
+    }
+}
+
+impl std::default::Default for KeyBinds {
+    fn default() -> Self {
+        let grid = Movement::new('h', 'j', 'k', 'l');
+        let cursor = Movement::new('H', 'J', 'K', 'L');
+        return KeyBinds {
+            grid,
+            cursor,
+            week_mode: Bind::Char('v'),
+            global_week_mode: Bind::Char('V'),
+        };
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn normal_keybind() {
+        let bind = "X";
+        let expected = CursiveEvent::Char('X');
+        assert_eq!(Event::from(bind), event!(expected));
+    }
+
+    #[test]
+    fn control_keybind() {
+        let bind = "C-x";
+        let expected = CursiveEvent::CtrlChar('x');
+        assert_eq!(Event::from(bind), event!(expected));
+    }
+
+    #[test]
+    fn lower_case_control_keybind() {
+        let bind = "c-x";
+        let expected = CursiveEvent::CtrlChar('x');
+        assert_eq!(Event::from(bind), event!(expected));
+    }
+
+    #[test]
+    #[should_panic]
+    fn very_long_and_wrong_keybind() {
+        let bind = "alksdjfalkjdf";
+        Event::from(bind);
+    }
+}
-- 
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