74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
// Package logger provides structured logging for the application.
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package logger
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import (
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"log/slog"
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"os"
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"git.eeqj.de/sneak/chat/internal/globals"
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"go.uber.org/fx"
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)
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// LoggerParams defines the dependencies for creating a Logger.
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type LoggerParams struct {
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fx.In
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Globals *globals.Globals
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}
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// Logger wraps slog with application-specific configuration.
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type Logger struct {
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log *slog.Logger
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level *slog.LevelVar
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params LoggerParams
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}
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// New creates a new Logger with appropriate handler based on terminal detection.
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func New(_ fx.Lifecycle, params LoggerParams) (*Logger, error) {
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l := new(Logger)
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l.level = new(slog.LevelVar)
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l.level.Set(slog.LevelInfo)
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tty := false
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if fileInfo, _ := os.Stdout.Stat(); (fileInfo.Mode() & os.ModeCharDevice) != 0 {
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tty = true
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}
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var handler slog.Handler
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if tty {
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handler = slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{
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Level: l.level,
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AddSource: true,
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})
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} else {
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handler = slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
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Level: l.level,
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AddSource: true,
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})
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}
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l.log = slog.New(handler)
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l.params = params
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return l, nil
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}
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// EnableDebugLogging switches the log level to debug.
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func (l *Logger) EnableDebugLogging() {
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l.level.Set(slog.LevelDebug)
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l.log.Debug("debug logging enabled", "debug", true)
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}
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// Get returns the underlying slog.Logger.
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func (l *Logger) Get() *slog.Logger {
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return l.log
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}
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// Identify logs the application name and version at startup.
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func (l *Logger) Identify() {
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l.log.Info("starting",
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"appname", l.params.Globals.Appname,
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"version", l.params.Globals.Version,
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)
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}
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