Process the settings place holders in the template

Cargo.lock

@@ -233,6 +233,7 @@ dependencies = [
  "log",
  "lrc",
  "notify-rust",
+ "parse-display",
  "pretty_env_logger",
  "regex",
  "serde",
@@ -1138,6 +1139,32 @@ dependencies = [
  "windows-sys 0.45.0",
 ]
 
+[[package]]
+name = "parse-display"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f96cc033d72896bb9a2c239a14e1141c3e2eae6d649e7c10ef4e598d66bc86c"
+dependencies = [
+ "once_cell",
+ "parse-display-derive",
+ "regex",
+]
+
+[[package]]
+name = "parse-display-derive"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5587062be441f3d868f7c4c9d13c67f286b03aa679d7f8176ef80bf2ee79e5d"
+dependencies = [
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "regex-syntax",
+ "structmeta",
+ "syn",
+]
+
 [[package]]
 name = "pin-project"
 version = "1.0.12"
@@ -1524,6 +1551,29 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
+[[package]]
+name = "structmeta"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bd9c2155aa89fb2c2cb87d99a610c689e7c47099b3e9f1c8a8f53faf4e3d2e3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "structmeta-derive",
+ "syn",
+]
+
+[[package]]
+name = "structmeta-derive"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bafede0d0a2f21910f36d47b1558caae3076ed80f6f3ad0fc85a91e6ba7e5938"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "strum"
 version = "0.22.0"

Cargo.toml

@@ -16,6 +16,7 @@ typed-builder = "0.12.0"
 log = { version = "0.4.17", optional = true }
 pretty_env_logger = { version = "0.4.0", optional = true }
 thiserror = "1.0.38"
+parse-display = "0.8.0"
 
 [dependencies.clap]
 version = "4.1.4"

src/cmus/mod.rs

@@ -5,6 +5,7 @@ pub mod query;
 use crate::cmus::query::CmusQueryResponse;
 #[cfg(feature = "debug")]
 use log::{debug, info};
+use parse_display::Display;
 use std::collections::HashMap;
 use std::fmt::Debug;
 use std::num::ParseIntError;
@@ -14,6 +15,27 @@ use typed_builder::TypedBuilder;
 
 pub trait TemplateProcessor {
     fn process(&self, template: &String) -> String;
+    fn get_keys(template: &String) -> Vec<String> {
+        let mut keys = Vec::new(); // Just a buffer to store the keys.
+        let mut key = String::new(); // Just a buffer to build the key.
+
+        for c in template.chars() {
+            if c == '{' {
+                key = String::new();
+            } else if c == '}' {
+                #[cfg(feature = "debug")]
+                debug!("Found key: {}", key);
+                keys.push(key.clone());
+            } else {
+                key.push(c);
+            }
+        }
+
+        #[cfg(feature = "debug")]
+        debug!("Found keys: {:?}", keys);
+
+        keys
+    }
 }
 
 #[derive(Debug, PartialEq, Default, Clone)]
@@ -21,7 +43,7 @@ pub struct TrackMetadata {
     tags: HashMap<String, String>,
 }
 
-#[derive(Debug, PartialEq, Default, Clone)]
+#[derive(Display, Debug, PartialEq, Default, Clone)]
 pub enum TrackStatus {
     Playing,
     Paused,
@@ -72,26 +94,19 @@ impl TemplateProcessor for Track {
         }
         let mut processed = template.clone();
 
-        let mut key = String::new(); // Just a buffer to store the key.
-
-        for c in template.chars() {
-            if c == '{' {
-                key = String::new();
-            } else if c == '}' {
-                #[cfg(feature = "debug")]
-                debug!("Replacing the placeholder {{{key}}} with its matching value.");
-                // Replace the key with their matching value if exists, if not replace with the empty string.
-                processed = processed.replace(
-                    &format!("{{{}}}", key),
-                    match key.as_str() {
-                        "title" => self.get_name(),
-                        _ => self.metadata.get(&key).unwrap_or(""),
-                    },
-                );
-            } else {
-                key.push(c);
+        Self::get_keys(template).iter().for_each(|key| {
+            #[cfg(feature = "debug")]
+            debug!("Replacing the placeholder {{{key}}} with its matching value.");
+            // Replace the key with their matching value if exists, if not replace with the empty string.
+            let status = self.status.to_string();
+            if let Some(value) = match key.as_str() {
+                "status" => Some(status.as_str()),
+                "title" => Some(self.get_name()),
+                _ => self.metadata.get(&key),
+            } {
+                processed = processed.replace(&format!("{{{key}}}"), value);
             }
-        }
+        });
 
         #[cfg(feature = "debug")]
         debug!("Processed template: {processed}");

src/cmus/player_settings.rs

@@ -1,6 +1,8 @@
-use crate::cmus::CmusError;
+use crate::cmus::{CmusError, TemplateProcessor};
 #[cfg(feature = "debug")]
 use log::{debug, info};
+use parse_display::Display;
+use std::fmt::{Display, Formatter};
 use std::num::ParseIntError;
 use std::str::FromStr;
 
@@ -13,7 +15,7 @@ pub struct PlayerSettings {
     pub volume: Volume,
 }
 
-#[derive(Debug, PartialEq, Default, Clone)]
+#[derive(Display, Debug, PartialEq, Default, Clone)]
 pub enum Shuffle {
     #[default]
     Off,
@@ -27,7 +29,7 @@ pub struct Volume {
     pub right: u8,
 }
 
-#[derive(Debug, PartialEq, Default, Clone)]
+#[derive(Display, Debug, PartialEq, Default, Clone)]
 pub enum AAAMode {
     #[default]
     All,
@@ -35,6 +37,42 @@ pub enum AAAMode {
     Artist,
 }
 
+impl TemplateProcessor for PlayerSettings {
+    fn process(&self, template: &String) -> String {
+        #[cfg(feature = "debug")]
+        {
+            info!("Processing template: {}", template);
+            debug!("Processing template with player settings: {:?}", self);
+        }
+        let mut processed = template.clone();
+
+        Self::get_keys(template).iter().for_each(|key| {
+            let value = match key.as_str() {
+                "repeat" => self.repeat.to_string(),
+                "repeat_current" => self.repeat_current.to_string(),
+                "shuffle" => self.shuffle.to_string(),
+                "aaa_mode" => self.aaa_mode.to_string(),
+                "volume_left" => self.volume.left.to_string(),
+                "volume_right" => self.volume.right.to_string(),
+                "volume" => {
+                    if self.volume.left == self.volume.right {
+                        self.volume.left.to_string()
+                    } else {
+                        format!("{}:{}", self.volume.left, self.volume.right)
+                    }
+                }
+                _ => "".to_string(),
+            };
+            processed = processed.replace(&format!("{{{key}}}"), &value);
+        });
+
+        #[cfg(feature = "debug")]
+        info!("Processed template: {}", processed);
+
+        processed
+    }
+}
+
 impl FromStr for AAAMode {
     type Err = CmusError;
 
@@ -165,7 +203,7 @@ mod tests {
                 volume: Volume {
                     left: 46,
                     right: 46,
-                }
+                },
             })
         );
     }

src/lib.rs

@@ -1,9 +1,9 @@
 #![feature(assert_matches)]
 
+use crate::cmus::TemplateProcessor;
 #[cfg(feature = "debug")]
 use log::{debug, info};
 use std::path::Path;
-use crate::cmus::TemplateProcessor;
 
 pub mod cmus;
 pub mod notification;