138 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			V
		
	
	
			
		
		
	
	
			138 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			V
		
	
	
module log
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import os
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import time
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import term
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pub enum Level {
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	fatal = 1
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	error
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	warn
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	info
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	debug
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}
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fn tag(l Level) string {
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	return match l {
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		.fatal { term.red('FATAL') }
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		.error { term.red('ERROR') }
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		.warn { term.yellow('WARN ') }
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		.info { term.white('INFO ') }
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		.debug { term.blue('DEBUG') }
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	}
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}
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interface Logger {
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	fatal(s string)
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	error(s string)
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	warn(s string)
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	info(s string)
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	debug(s string)
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}
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pub struct Log {
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mut:
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	level            Level
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	output_label     string
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	ofile            os.File
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	output_to_file   bool
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pub mut:
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	output_file_name string
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}
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pub fn (mut l Log) set_level(level Level) {
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	l.level = level
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}
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pub fn (mut l Log) set_output_level(level Level) {
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	l.level = level
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}
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pub fn (mut l Log) set_full_logpath(full_log_path string) {
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	rlog_file := os.real_path(full_log_path)
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	l.set_output_label(os.file_name(rlog_file))
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	l.set_output_path(os.dir(rlog_file))
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}
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pub fn (mut l Log) set_output_label(label string) {
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	l.output_label = label
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}
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pub fn (mut l Log) set_output_path(output_file_path string) {
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	if l.ofile.is_opened {
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		l.ofile.close()
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	}
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	l.output_to_file = true
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	l.output_file_name = os.join_path(os.real_path(output_file_path), l.output_label)
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	ofile := os.open_append(l.output_file_name) or {
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		panic('error while opening log file $l.output_file_name for appending')
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	}
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	l.ofile = ofile
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}
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// Writes the log file content to disk
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pub fn (mut l Log) flush() {
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	l.ofile.flush()
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}
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pub fn (mut l Log) close() {
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	l.ofile.close()
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}
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fn (mut l Log) log_file(s string, level Level) {
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	timestamp := time.now().format_ss()
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	e := tag(level)
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	l.ofile.writeln('$timestamp [$e] $s')
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}
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fn (l &Log) log_cli(s string, level Level) {
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	f := tag(level)
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	t := time.now()
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	println('[$f $t.format_ss()] $s')
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}
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fn (mut l Log) send_output(s &string, level Level) {
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	if l.output_to_file {
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		l.log_file(s, level)
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	} else {
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		l.log_cli(s, level)
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	}
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}
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pub fn (mut l Log) fatal(s string) {
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	if l.level < .fatal {
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		return
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	}
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	l.send_output(s, .fatal)
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	l.ofile.close()
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	panic('$l.output_label: $s')
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}
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pub fn (mut l Log) error(s string) {
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	if l.level < .error {
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		return
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	}
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	l.send_output(s, .error)
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}
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pub fn (mut l Log) warn(s string) {
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	if l.level < .warn {
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		return
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	}
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	l.send_output(s, .warn)
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}
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pub fn (mut l Log) info(s string) {
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	if l.level < .info {
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		return
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	}
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	l.send_output(s, .info)
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}
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pub fn (mut l Log) debug(s string) {
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	if l.level < .debug {
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		return
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	}
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	l.send_output(s, .debug)
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}
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