esctl/pkg/log/logger.go

/*
Copyright © 2026 Thomas von Dein

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package log

import (
	"log/slog"
	"os"
	"runtime/debug"

	"codeberg.org/scip/esctl/pkg/cfg"
	"github.com/mattn/go-isatty"
	"github.com/tlinden/yadu"
)

const LevelNotice = slog.Level(2)

func Init(conf *cfg.Config) {
	logLevel := new(slog.LevelVar{})

	opts := new(yadu.Options{
		Level:     logLevel,
		AddSource: true,
		NoColor:   !isatty.IsTerminal(os.Stdout.Fd()),
	})

	buildInfo, _ := debug.ReadBuildInfo()

	handler := yadu.NewHandler(os.Stdout, opts)
	debuglogger := slog.New(handler).With(
		slog.Group("program_info",
			slog.String("version", cfg.Version),
			slog.String("go_version", buildInfo.GoVersion),
		),
	)

	slog.SetDefault(debuglogger)

	switch conf.Debug {
	case true:
		logLevel.Set(slog.LevelDebug)

	default:
		logLevel.Set(slog.LevelInfo)
	}
}