feat: add logging capabilities

src/config.rs

@@ -1,9 +1,11 @@
-use clap::Parser;
+use clap::{Parser, ValueEnum};
 use serde::{Deserialize, Serialize};
+use std::fmt;
 use std::path::PathBuf;
-use tracing_core::{Level, LevelFilter};
+use tracing_core::LevelFilter;
 
-pub enum VerbosityFilter {
+#[derive(ValueEnum, Clone, Debug, Deserialize, Serialize)]
+pub enum VerbosityLevel {
     Off,
     Error,
     Warn,
@@ -12,61 +14,45 @@ pub enum VerbosityFilter {
     Trace,
 }
 
-impl VerbosityFilter {
-    fn with_offset(&self, offset: i16) -> VerbosityFilter {
-        let value = match self {
-            Self::Off => 0_i16,
-            Self::Error => 1,
-            Self::Warn => 2,
-            Self::Info => 3,
-            Self::Debug => 4,
-            Self::Trace => 5,
-        };
-        match value.saturating_add(offset) {
-            i16::MIN..=0 => Self::Off,
-            1 => Self::Error,
-            2 => Self::Warn,
-            3 => Self::Info,
-            4 => Self::Debug,
-            5..=i16::MAX => Self::Trace,
-        }
+impl Default for VerbosityLevel {
+    fn default() -> Self {
+        VerbosityLevel::Error
     }
-
 }
-impl From<LevelFilter> for VerbosityFilter {
-    fn from(level: LevelFilter) -> Self {
-        match level {
-            LevelFilter::OFF => Self::Off,
-            LevelFilter::ERROR => Self::Error,
-            LevelFilter::WARN => Self::Warn,
-            LevelFilter::INFO => Self::Info,
-            LevelFilter::DEBUG => Self::Debug,
-            LevelFilter::TRACE => Self::Trace,
+impl fmt::Display for VerbosityLevel {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            VerbosityLevel::Off => {
+                write!(f, "off")
+            }
+            VerbosityLevel::Error => {
+                write!(f, "error")
+            }
+            VerbosityLevel::Warn => {
+                write!(f, "warn")
+            }
+            VerbosityLevel::Info => {
+                write!(f, "info")
+            }
+            VerbosityLevel::Debug => {
+                write!(f, "debug")
+            }
+            VerbosityLevel::Trace => {
+                write!(f, "trace")
+            }
         }
     }
 }
 
-impl From<VerbosityFilter> for Option<Level> {
-    fn from(filter: VerbosityFilter) -> Self {
-        match filter {
-            VerbosityFilter::Off => None,
-            VerbosityFilter::Error => Some(Level::ERROR),
-            VerbosityFilter::Warn => Some(Level::WARN),
-            VerbosityFilter::Info => Some(Level::INFO),
-            VerbosityFilter::Debug => Some(Level::DEBUG),
-            VerbosityFilter::Trace => Some(Level::TRACE),
-        }
-    }
-}
-impl From<Option<Level>> for VerbosityFilter {
-    fn from(level: Option<Level>) -> Self {
-        match level {
-            None => Self::Off,
-            Some(Level::ERROR) => Self::Error,
-            Some(Level::WARN) => Self::Warn,
-            Some(Level::INFO) => Self::Info,
-            Some(Level::DEBUG) => Self::Debug,
-            Some(Level::TRACE) => Self::Trace,
+impl Into<LevelFilter> for VerbosityLevel {
+    fn into(self) -> LevelFilter {
+        match self {
+            VerbosityLevel::Off => LevelFilter::OFF,
+            VerbosityLevel::Error => LevelFilter::ERROR,
+            VerbosityLevel::Warn => LevelFilter::WARN,
+            VerbosityLevel::Info => LevelFilter::INFO,
+            VerbosityLevel::Debug => LevelFilter::DEBUG,
+            VerbosityLevel::Trace => LevelFilter::TRACE,
         }
     }
 }
@@ -77,40 +63,19 @@ pub struct Config {
     #[arg(
         long,
         short = 'v',
-        action = clap::ArgAction::Count,
+        default_value_t,
         global = true,
-        help = "Increase logging verbosity",
+        help = "Increase logging verbosity"
     )]
-    verbose: u8,
-
-    #[arg(
-        long,
-        short = 'q',
-        action = clap::ArgAction::Count,
-        global = true,
-        help = "Decrease logging verbosity",
-        conflicts_with = "verbose",
-    )]
-    quiet: u8,
+    log_level: VerbosityLevel,
 }
 
 impl Config {
     pub fn path(&self) -> &PathBuf {
         &self.path
     }
-    /// Gets the filter that should be applied to the logger.
-    /// 
-    pub fn filter(&self) -> VerbosityFilter {
-        let offset = self.verbose as i16 - self.quiet as i16;
-        VerbosityFilter::Error.with_offset(offset)
-    }
 
-    pub fn tracing_level(&self) -> Option<tracing_core::Level> {
-        self.filter().into()
-    }
-
-    /// Get the tracing level filter.
-    pub fn tracing_level_filter(&self) -> tracing_core::LevelFilter {
-        self.filter().into()
+    pub fn log_level(&self) -> LevelFilter {
+        self.log_level.clone().into()
     }
 }