module log import os import time import term pub const ( FATAL = 1 ERROR = 2 WARN = 3 INFO = 4 DEBUG = 5 ) interface Logger { fatal(s string) error(s string) warn(s string) info(s string) debug(s string) } pub struct Log { mut: level int output string } pub fn (l mut Log) set_level(level int){ l.level = level } pub fn (l mut Log) set_output(output string) { l.output = output } fn (l Log) log_file(s string, e string) { filename := l.output f := os.open_append(l.output) or { panic('error reading file $filename') } timestamp := time.now().format_ss() f.writeln('$timestamp [$e] $s') } pub fn (l Log) fatal(s string){ panic(s) } pub fn (l Log) error(s string){ if l.level >= ERROR{ match l.output { 'terminal'{ f := term.red('E') t := time.now() println('[$f ${t.format_ss()}] $s') } else { l.log_file(s, 'E') } } } } pub fn (l Log) warn(s string){ if l.level >= WARN{ match l.output { 'terminal'{ f := term.yellow('W') t := time.now() println('[$f ${t.format_ss()}] $s') } else { l.log_file(s, 'W') } } } } pub fn (l Log) info(s string){ if l.level >= INFO{ match l.output { 'terminal'{ f := term.white('I') t := time.now() println('[$f ${t.format_ss()}] $s') } else { l.log_file(s, 'I') } } } } pub fn (l Log) debug(s string){ if l.level >= DEBUG{ match l.output { 'terminal' { f := term.blue('D') t := time.now() println('[$f ${t.format_ss()}] $s') } else { l.log_file(s, 'D') } } } }