// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT

package log

import (
	"fmt"
	"os"
)

// FallbackErrorf is the last chance to show an error if the logger has internal errors
func FallbackErrorf(format string, args ...any) {
	_, _ = fmt.Fprintf(os.Stderr, format+"\n", args...)
}

func GetLevel() Level {
	return GetLogger(DEFAULT).GetLevel()
}

func Log(skip int, level Level, format string, v ...any) {
	// codeql[disable-next-line=go/clear-text-logging]
	GetLogger(DEFAULT).Log(skip+1, &Event{Level: level}, format, v...)
}

func Trace(format string, v ...any) {
	Log(1, TRACE, format, v...)
}

func IsTrace() bool {
	return GetLevel() <= TRACE
}

func Debug(format string, v ...any) {
	Log(1, DEBUG, format, v...)
}

func IsDebug() bool {
	return GetLevel() <= DEBUG
}

func Info(format string, v ...any) {
	Log(1, INFO, format, v...)
}

func Warn(format string, v ...any) {
	Log(1, WARN, format, v...)
}

func Error(format string, v ...any) {
	Log(1, ERROR, format, v...)
}

func ErrorWithSkip(skip int, format string, v ...any) {
	Log(skip+1, ERROR, format, v...)
}

var OsExiter = os.Exit

// Fatal records fatal log and exit process
func Fatal(format string, v ...any) {
	Log(1, FATAL, format, v...)
	GetManager().Close()
	OsExiter(1)
}

func GetLogger(name string) Logger {
	return GetManager().GetLogger(name)
}

func IsLoggerEnabled(name string) bool {
	return GetManager().GetLogger(name).IsEnabled()
}

func SetupStderrLogger(loggerName, writerName string, level Level) {
	writer := NewEventWriterConsole(writerName, WriterMode{
		Level:    level,
		Flags:    FlagsFromBits(LstdFlags),
		Colorize: CanColorStderr,

		// For most CLI commands, it's better to use Stderr as log output:
		// this logger is installed early (app.Before), before subcommands like "dump" redirect logging to stderr.
		// If Stdout, early log output (e.g.: warning during config loading) goes to stdout
		// and corrupts any command that writes data to stdout (e.g. "gitea dump --file -").
		//
		// It is inconsistent with the web server's default console logger from config
		// (which will be initialized later and use Stdout by default), but there is no other way at the moment:
		// many existing users depend on such behavior to collect web logs (e.g. fail2ban).
		//
		// Maybe need to refactor the logger system again in the future.
		WriterOption: WriterConsoleOption{Stderr: true},
	})
	GetManager().GetLogger(loggerName).ReplaceAllWriters(writer)
}