use std::io::Write;
use std::io::stderr;

use log::{Log, LogLevel, LogRecord, LogMetadata};

pub struct ImagLogger {
    lvl: LogLevel,
}

impl ImagLogger {

    pub fn new(lvl: LogLevel) -> ImagLogger {
        ImagLogger {
            lvl: lvl,
        }
    }

}

impl Log for ImagLogger {

    fn enabled(&self, metadata: &LogMetadata) -> bool {
        metadata.level() <= self.lvl
    }

    fn log(&self, record: &LogRecord) {
        if self.enabled(record.metadata()) {
            // TODO: This is just simple logging. Maybe we can enhance this lateron
            if record.metadata().level() == LogLevel::Debug {
                let loc = record.location();
                writeln!(stderr(), "[imag][{: <5}][{}][{: >5}]: {}",
                         record.level(), loc.file(), loc.line(), record.args()).ok();
            } else {
                writeln!(stderr(), "[imag][{: <5}]: {}", record.level(), record.args()).ok();
            }
        }
    }
}