var express = require('express');
var http = require('http');

var log = {};

log.Color = {
    DEFAULT: 0,
    BLACK  : 1,
    RED    : 2,
    GREEN  : 3,
    YELLOW : 4,
    BLUE   : 5,
    MAGENTA: 6,
    CYAN   : 7,
    ORANGE : 8,
};

log.getColorCode = function(c) {
    switch (c) {
        case log.Color.DEFAULT: return '\u001b[0m';
        case log.Color.BLACK:   return '\u001b[30m';
        case log.Color.RED:     return '\u001b[31m';
        case log.Color.GREEN:   return '\u001b[32m';
        case log.Color.YELLOW:  return '\u001b[33m';
        case log.Color.BLUE:    return '\u001b[34m';
        case log.Color.MAGENTA: return '\u001b[35m';
        case log.Color.CYAN:    return '\u001b[36m';
        case log.Color.ORANGE:  return '\u001b[38;5;202m';
    }
}

log.write = function(elt, color) {
    console.log(log.getColorCode(color) + elt + log.getColorCode(log.Color.DEFAULT));
}

log.ready = function(msg) {
    log.write('[RDY] ' + new Date() + ' ' + msg, log.Color.GREEN);
}

log.request = function(req, res, time) {

    var isStatic = req.url.substr(0, 7) === '/static' || req.url === '/favicon.ico';
    let mess = '[REQ] ' + new Date() + ' ';
    mess += (req.headers['x-forwarded-for'] || req.connection.remoteAddress);

    if (time !== undefined) {
        mess += ' in ' + ("      " + time).slice(-6) + ' ms';
    }

    mess += ': ';

    if (isStatic && req.url === '/favicon.ico') {
        mess += '/static';
    }

    mess += req.url;

    log.write(mess, isStatic ? log.Color.YELLOW : log.Color.CYAN);

}

log.socket = {};

log.socket.connect = function(socket) {

    let mess = '[SOK] ' + new Date() + ' ';
    mess += (req.headers['x-forwarded-for'] || req.connection.remoteAddress);
    mess += ' disconnect';
    log.write(mess, log.Color.MAGENTA);

}

log.socket.disconnect = function(socket) {

    let mess = '[SOK] ' + new Date() + ' ';
    mess += (req.headers['x-forwarded-for'] || req.connection.remoteAddress);
    mess += ' connect';
    log.write(mess, log.Color.MAGENTA);

}


log.dberror = function(error) {
    log.write('[DBE] ' + new Date() + ' ' + error, log.Color.RED);
}

log.prefetcherror = function(error) {
    log.write('[PFE] ' + new Date() + ' ' + error, log.Color.RED);
}

log.mailerror = function(error) {
    log.write('[MLE] ' + new Date() + ' ' + error, log.Color.RED);
}

log.debug = function(info) {
    log.write('[DBG] ' + (info !== undefined ? info : ''), log.Color.YELLOW);
}

log.pugerror = function(error) {
    log.write('[PER] ' + new Date() + ' ' + error, log.Color.RED);
}

log.warning = function(message) {
    log.write('[WRN] ' + new Date() + ' ' + message, log.Color.ORANGE);
}

module.exports = log;