logger.lua
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logger.lua
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	--[[
	mattata v2.0 - Structured Logging Module
	]]

	local logger = {}

	local config = require('src.core.config')

	local LEVELS = {
	DEBUG = 1,
	INFO = 2,
	WARN = 3,
	ERROR = 4
	}

	local COLORS = {
	DEBUG = '\27[36m',
	INFO = '\27[32m',
	WARN = '\27[33m',
	ERROR = '\27[31m',
	RESET = '\27[0m'
	}

	local current_level = LEVELS.INFO

	function logger.set_level(level)
	level = level:upper()
	if LEVELS[level] then
	current_level = LEVELS[level]
	end
	end

	local function log(level, fmt, ...)
	if LEVELS[level] < current_level then
	return
	end
	local msg
	if select('#', ...) > 0 then
	msg = string.format(fmt, ...)
	else
	msg = tostring(fmt)
	end
	local timestamp = os.date('%Y-%m-%d %H:%M:%S')
	io.write(string.format(
	'%s[%s]%s [%s] %s\n',
	COLORS[level], level, COLORS.RESET,
	timestamp, msg
	))
	io.flush()
	end

	function logger.debug(fmt, ...)
	log('DEBUG', fmt, ...)
	end

	function logger.info(fmt, ...)
	log('INFO', fmt, ...)
	end

	function logger.warn(fmt, ...)
	log('WARN', fmt, ...)
	end

	function logger.error(fmt, ...)
	log('ERROR', fmt, ...)
	end

	-- Initialize log level from config
	function logger.init()
	if config.debug() then
	logger.set_level('DEBUG')
	end
	end

	return logger