Merge pull request #5 from iCog-Labs-Dev/feature/logger

Output Logger Implementation

Author: ishaksebsib

metta-run/Cargo.toml

@@ -6,4 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+chrono = "0.4.38"
 clap = { version = "4.5.13", features = ["derive"] }

metta-run/src/main.rs

@@ -3,6 +3,7 @@ use formatters::commands::{format, FormatterCommands};
 use std::io;
 mod formatters;
 mod runners;
+mod tools;
 
 fn main() -> io::Result<()> {
     #[derive(Parser)]
@@ -22,7 +23,10 @@ fn main() -> io::Result<()> {
 
     let args = Args::parse();
     let file = args.file;
+
+    let start_time = tools::logger::start_timer();
     let metta_output = runners::metta::run(file);
+    tools::logger::stop_timer(start_time, &metta_output)?;
 
     if let Some(command) = args.commands {
         match command {
@@ -31,6 +35,5 @@ fn main() -> io::Result<()> {
     } else {
         println!("{}", metta_output);
     }
-
     Ok(())
 }

metta-run/src/tools/logger.rs

@@ -0,0 +1,33 @@
+use chrono::Local;
+use std::fs::OpenOptions;
+use std::io::Write;
+use std::time::{Duration, Instant};
+
+pub fn start_timer() -> Instant {
+    Instant::now()
+}
+
+pub fn stop_timer(start_time: Instant, metta_output: &String) -> Result<(), std::io::Error> {
+    let now = Local::now();
+    let formatted_date = now.format("%Y-%m-%d").to_string();
+
+    let log_file_name = format!("{}.log", formatted_date);
+
+    let end_time = Instant::now();
+    let elapsed_time = end_time.duration_since(start_time);
+    let final_output = format!(
+        "\nStart time: {}\nElapsed time: {:.3}\n{}\n",
+        now.format("%Y-%m-%d %H-%m-%s").to_string(),
+        elapsed_time.as_secs_f32(),
+        metta_output
+    );
+
+    let mut output_file = OpenOptions::new()
+        .append(true)
+        .create(true)
+        .open(&log_file_name)?;
+
+    output_file.write_all(final_output.as_bytes())?;
+
+    Ok(())
+}

metta-run/src/tools/mod.rs

@@ -0,0 +1 @@
+pub mod logger;