diff --git a/src/cli.rs b/src/cli.rs
index 49ecf35..591bb29 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -235,5 +235,3 @@ pub fn cli_template() -> Command {
                 ),
         )
 }
-
-
diff --git a/src/logger.rs b/src/logger.rs
index baab109..cb14ba4 100644
--- a/src/logger.rs
+++ b/src/logger.rs
@@ -1,11 +1,11 @@
 use std::fs::File;
-use std::io::{ Write, stdout, stderr};
+use std::io::{stderr, stdout, Write};
 use std::path::PathBuf;
 
 use chrono::Local; // Import the Local struct from the chrono crate
-use log::{Level, Record, Metadata, Log };
+use log::{Level, Log, Metadata, Record};
 
-pub enum Logstdout{
+pub enum Logstdout {
     Stdout,
     StdErr,
 }
@@ -21,7 +21,7 @@ impl Logger {
     pub fn new(write_to_file: bool, file_path: Option<PathBuf>) -> Self {
         let mut path = file_path;
         if path.is_none() {
-            path = Some(PathBuf::from( 
+            path = Some(PathBuf::from(
                 #[cfg(target_os = "linux")]
                 "/var/log/fluere/fluere.log",
                 #[cfg(target_os = "windows")]
@@ -30,20 +30,30 @@ impl Logger {
                 "/Library/Logs/fluere/fluere.log",
                 #[cfg(target_os = "bsd")]
                 "/var/log/fluere/fluere.log",
-                #[cfg(not(any(target_os = "linux", target_os = "windows", target_os = "macos", target_os = "bsd")))]
+                #[cfg(not(any(
+                    target_os = "linux",
+                    target_os = "windows",
+                    target_os = "macos",
+                    target_os = "bsd"
+                )))]
                 "/var/log/fluere/fluere.log",
             ));
         }
         let mut file = None;
         if write_to_file {
             file = Some(File::create(path.as_ref().unwrap()).unwrap());
-        } 
-        Logger {write_to_file: true, write_to_std: None, severity: Level::Info , file}
+        }
+        Logger {
+            write_to_file: true,
+            write_to_std: None,
+            severity: Level::Info,
+            file,
+        }
     }
 
     // pub fn log(&mut self, severity: Level, message: &str) {
-        // let timestamp = Local::now(); // Get the current timestamp using Local::now()
-        // let log_message = format!("{:?} {}: {}", timestamp, severity, message); // Format the timestamp and append it to the log message
+    // let timestamp = Local::now(); // Get the current timestamp using Local::now()
+    // let log_message = format!("{:?} {}: {}", timestamp, severity, message); // Format the timestamp and append it to the log message
     // }
 }
 
@@ -55,24 +65,42 @@ impl Log for Logger {
     fn log(&self, record: &Record) {
         let timestamp = Local::now();
 
-        if self.write_to_std.as_ref().is_some() && record.level() <= self.severity{
+        if self.write_to_std.as_ref().is_some() && record.level() <= self.severity {
             match self.write_to_std.as_ref().unwrap() {
                 Logstdout::Stdout => {
-                    writeln!(stdout(), "[{}]: {} {}",timestamp, record.level(), record.args()).unwrap();
+                    writeln!(
+                        stdout(),
+                        "[{}]: {}: {}",
+                        timestamp,
+                        record.level(),
+                        record.args()
+                    )
+                    .unwrap();
                 }
                 Logstdout::StdErr => {
-                    writeln!(stderr(), "[{}]: {} {}",timestamp, record.level(), record.args()).unwrap();
+                    writeln!(
+                        stderr(),
+                        "[{}]: {}: {}",
+                        timestamp,
+                        record.level(),
+                        record.args()
+                    )
+                    .unwrap();
                 }
             }
         }
 
         if self.write_to_file {
-    
-            writeln!(self.file.as_ref().unwrap(), "[{}]: {} {}",timestamp, record.level(), record.args()).unwrap();
+            writeln!(
+                self.file.as_ref().unwrap(),
+                "[{}]: {}: {}",
+                timestamp,
+                record.level(),
+                record.args()
+            )
+            .unwrap();
         }
     }
 
-    fn flush(&self) {
-
-    }
+    fn flush(&self) {}
 }
diff --git a/src/main.rs b/src/main.rs
index 91e1a05..983a937 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,18 +3,65 @@
 // It also supports live capture and conversion of NetFlow data.
 // This file contains the main function which parses the command line arguments and calls the appropriate functions based on the arguments.
 
+pub mod cli;
+pub mod logger;
 pub mod net;
 pub mod plugin;
 pub mod types;
 pub mod utils;
-pub mod cli;
 
 use pnet::datalink;
+// use env_logger::{init, Logger};
+use log::Level;
 
+use crate::logger::Logger;
 use crate::net::list_devices;
 
+use std::fmt::Display;
 use std::process::exit;
 
+enum Mode {
+    Offline,
+    Online,
+    Live,
+    Pcap,
+}
+impl Display for Mode {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Mode::Offline => write!(f, "Offline"),
+            Mode::Online => write!(f, "Online"),
+            Mode::Live => write!(f, "Live"),
+            Mode::Pcap => write!(f, "Pcap"),
+        }
+    }
+}
+
+struct Fluere {
+    interface: String,
+    args: types::Args,
+    mode: Mode,
+    logger: Logger,
+    verbose: Level,
+}
+impl Fluere {
+    fn new(
+        interface: String,
+        args: types::Args,
+        mode: Mode,
+        logger: Logger,
+        verbose: Level,
+    ) -> Fluere {
+        Fluere {
+            interface,
+            args,
+            mode,
+            logger,
+            verbose,
+        }
+    }
+}
+
 // This is the main function of the application.
 // It gets the command line arguments, parses them, and calls the appropriate functions based on the arguments.
 #[tokio::main]
diff --git a/src/net/capture.rs b/src/net/capture.rs
index abae835..6f1feca 100644
--- a/src/net/capture.rs
+++ b/src/net/capture.rs
@@ -1,7 +1,7 @@
 use pcap::{Active, Address, Capture, Device, Error as PcapError};
 
-use std::time::Instant;
 use std::fmt;
+use std::time::Instant;
 
 #[derive(Debug)]
 pub enum DeviceError {
diff --git a/src/net/packet_pcap.rs b/src/net/packet_pcap.rs
index f2c9aa2..b727191 100644
--- a/src/net/packet_pcap.rs
+++ b/src/net/packet_pcap.rs
@@ -4,10 +4,10 @@ use std::fs;
 
 use tokio::time::sleep;
 
+use crate::net::find_device;
+use crate::net::CaptureDevice;
 use crate::types::Args;
 use crate::utils::cur_time_file;
-use crate::net::CaptureDevice;
-use crate::net::find_device;
 
 use std::time::{Duration, Instant};
 
diff --git a/src/utils/log.rs b/src/utils/log.rs
index 77666b1..8f3c759 100644
--- a/src/utils/log.rs
+++ b/src/utils/log.rs
@@ -1,44 +1,106 @@
 use std::fs::File;
-use std::io::Write;
-use std::path::Path;
+use std::io::{stderr, stdout, Write};
+use std::path::PathBuf;
+
 use chrono::Local; // Import the Local struct from the chrono crate
+use log::{Level, Log, Metadata, Record};
 
-pub struct Log {
-    file: File,
+pub enum Logstdout {
+    Stdout,
+    StdErr,
 }
 
-impl Log {
-    #[cfg(target_os = "linux")]
-    pub fn new() -> Self {
-        let path = "/var/log/fluere/fluere.log";
-        let file = File::create(&path).expect("Failed to create log file");
-        Log { file }
-    }
+pub struct Logger {
+    write_to_file: bool,
+    write_to_std: Option<Logstdout>,
+    severity: Level,
+    file: Option<File>,
+}
 
-    #[cfg(target_os = "windows")]
-    pub fn new() -> Self {
-        let path = "C:\\Program Files\\fluere\\fluere.log";
-        let file = File::create(&path).expect("Failed to create log file");
-        Log { file }
+impl Logger {
+    pub fn new(write_to_file: bool, file_path: Option<PathBuf>) -> Self {
+        let mut path = file_path;
+        if path.is_none() {
+            path = Some(PathBuf::from(
+                #[cfg(target_os = "linux")]
+                "/var/log/fluere/fluere.log",
+                #[cfg(target_os = "windows")]
+                "C:\\Program Files\\fluere\\fluere.log",
+                #[cfg(target_os = "macos")]
+                "/Library/Logs/fluere/fluere.log",
+                #[cfg(target_os = "bsd")]
+                "/var/log/fluere/fluere.log",
+                #[cfg(not(any(
+                    target_os = "linux",
+                    target_os = "windows",
+                    target_os = "macos",
+                    target_os = "bsd"
+                )))]
+                "/var/log/fluere/fluere.log",
+            ));
+        }
+        let mut file = None;
+        if write_to_file {
+            file = Some(File::create(path.as_ref().unwrap()).unwrap());
+        }
+        Logger {
+            write_to_file: true,
+            write_to_std: None,
+            severity: Level::Info,
+            file,
+        }
     }
 
-    #[cfg(target_os = "macos")]
-    pub fn new() -> Self {
-        let path = "/Library/Logs/fluere/fluere.log";
-        let file = File::create(&path).expect("Failed to create log file");
-        Log { file }
-    }
+    // pub fn log(&mut self, severity: Level, message: &str) {
+    // let timestamp = Local::now(); // Get the current timestamp using Local::now()
+    // let log_message = format!("{:?} {}: {}", timestamp, severity, message); // Format the timestamp and append it to the log message
+    // }
+}
 
-    #[cfg(target_os = "bsd")]
-    pub fn new() -> Self {
-        let path = "/var/log/fluere/fluere.log";
-        let file = File::create(&path).expect("Failed to create log file");
-        Log { file }
+impl Log for Logger {
+    fn enabled(&self, _metadata: &Metadata) -> bool {
+        true
     }
 
-    pub fn log(&mut self, severity: Severity, message: &str) {
-        let timestamp = Local::now(); // Get the current timestamp using Local::now()
-        let log_message = format!("{:?} {}: {}", timestamp, severity, message); // Format the timestamp and append it to the log message
-        self.file.write_all(log_message.as_bytes()).expect("Failed to write to log file");
+    fn log(&self, record: &Record) {
+        let timestamp = Local::now();
+
+        if self.write_to_std.as_ref().is_some() && record.level() <= self.severity {
+            match self.write_to_std.as_ref().unwrap() {
+                Logstdout::Stdout => {
+                    write!(
+                        stdout(),
+                        "[{}]: {} {}",
+                        timestamp,
+                        record.level(),
+                        record.args()
+                    )
+                    .unwrap();
+                }
+                Logstdout::StdErr => {
+                    write!(
+                        stderr(),
+                        "[{}]: {} {}",
+                        timestamp,
+                        record.level(),
+                        record.args()
+                    )
+                    .unwrap();
+                }
+            }
+        }
+
+        if self.write_to_file {
+            writeln!(
+                self.file.as_ref().unwrap(),
+                "[{}]: {} {}",
+                timestamp,
+                record.level(),
+                record.args()
+            )
+            .unwrap();
+        }
     }
+
+    fn flush(&self) {}
 }