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extern crate chrono; // time
extern crate colored; // color

use chrono::prelude::*;
use std::fs::File;
use std::path::Path;
use std::{env, fs};
#[path = "./terminal.rs"]
mod terminal;

pub struct IOLogger {
    pkg: String,
    name: String,
    file: String,
    terminal: terminal::TerminalLogger,
}

impl IOLogger {
    fn new(name: &str, file: &str, log_name: Option<&str>) -> IOLogger {
        let pkg = log_name.unwrap_or(env!("CARGO_PKG_NAME"));
        if !file_exists(file) {
            let _file = create_file(file);
        }
        return IOLogger {
            pkg: pkg.to_string(),
            name: name.to_string(),
            file: file.to_string(),
            terminal: terminal::get(name),
        };
    }

    pub fn get_name(&self) -> String {
        return format!("{}", self.name);
    }

    pub fn get_file(&self) -> String {
        return format!("{}", self.file);
    }

    pub fn append_log(&self, content: &str) {
        let mut contents: std::string::String = read_file(&self.file, "Something went wrong...");
        contents = contents + "\n" + content;
        write_file(&self.file, &contents, "Something went wrong...");
    }
    pub fn info(&self, cont: &str) {
        let formatted_str = format!(
            "{} [{}:{}] {}: {}",
            get_current_time(),
            self.pkg,
            self.name,
            "INFO",
            cont.to_string()
        );
        self.terminal.info(cont);
        self.append_log(&formatted_str);
    }
    pub fn error(&self, cont: &str) {
        let formatted_str = format!(
            "{} [{}:{}] {}: {}",
            get_current_time(),
            self.pkg,
            self.name,
            "ERROR",
            cont.to_string()
        );
        self.terminal.error(cont);
        self.append_log(&formatted_str);
    }
    pub fn fatal(&self, cont: &str) {
        let formatted_str = format!(
            "{} [{}:{}] {}: {}",
            get_current_time(),
            self.pkg,
            self.name,
            "FATAL",
            cont.to_string()
        );
        self.terminal.fatal(cont);
        self.append_log(&formatted_str);
    }
    pub fn critical(&self, cont: &str) {
        let formatted_str = format!(
            "{} [{}:{}] {}: {}",
            get_current_time(),
            self.pkg,
            self.name,
            "CRITICAL",
            cont.to_string()
        );
        self.terminal.critical(cont);
        self.append_log(&formatted_str);
    }
    pub fn debug(&self, cont: &str) {
        let formatted_str = format!(
            "{} [{}:{}] {}: {}",
            get_current_time(),
            self.pkg,
            self.name,
            "DEBUG",
            cont.to_string()
        );
        self.terminal.debug(cont);
        self.append_log(&formatted_str);
    }
    pub fn warn(&self, cont: &str) {
        let formatted_str = format!(
            "{} [{}:{}] {}: {}",
            get_current_time(),
            self.pkg,
            self.name,
            "WARN",
            cont.to_string()
        );
        self.terminal.warn(cont);
        self.append_log(&formatted_str);
    }
}

pub fn get(name: &str, file: &str) -> IOLogger {
    let io_logger = IOLogger::new(name, file, None);
    return io_logger;
}

pub fn get_current_time() -> String {
    let local_time = Local::now();
    return local_time.format("%Y-%m-%d %H:%M:%S").to_string();
}

pub fn read_file(path: &str, expect: &str) -> std::string::String {
    return fs::read_to_string(path).expect(expect);
}

pub fn write_file(path: &str, content: &str, expect: &str) -> bool {
    fs::write(path, content).expect(expect);
    return true;
}

pub fn file_exists(p: &str) -> bool {
    let path = Path::new(p);
    if path.exists() {
        return true;
    } else {
        return false;
    }
}

pub fn create_file(file: &str) -> std::io::Result<()> {
    File::create(file)?;
    Ok(())
}