use super::{formats::Format, aggregators::Aggregator};
use super::super::LogResult;

use std::{io::Write, sync::Mutex};


pub struct Pipeline {
    format: Box<dyn Format>,
    aggregator: Box<dyn Aggregator>,
    writer: Mutex<Box<dyn Write + Send>>,
}


impl Pipeline {
    pub fn new<W: Write + 'static + Send, F: Format + 'static, A: Aggregator + 'static>(writer: W, format: F, aggregator: A) -> Pipeline {
        Pipeline {
            format: Box::new(format),
            aggregator: Box::new(aggregator),
            writer: Mutex::new(Box::new(writer)),
        }
    }

    pub fn push_item(&self, item: &LogResult) {
        let mut writer = self.writer.lock().unwrap();
        self.aggregator.push_item(item, &*self.format, &mut *writer);
    }
}