package observability

import (
	"log/slog"
	"os"
	"strings"
)

// InitLogger 按环境初始化 slog（dev 文本，test/main JSON）。
func InitLogger(env string) *slog.Logger {
	opts := &slog.HandlerOptions{Level: slog.LevelInfo}
	var handler slog.Handler
	if strings.EqualFold(env, "dev") {
		handler = slog.NewTextHandler(os.Stdout, opts)
	} else {
		handler = slog.NewJSONHandler(os.Stdout, opts)
	}
	logger := slog.New(handler)
	slog.SetDefault(logger)
	return logger
}