package uptracehelper

import (
	"context"
	"time"

	"github.com/uptrace/uptrace-go/uptrace"
)

type Config struct {
	ServiceName           string
	ServiceVersion        string
	DeploymentEnvironment string
	ShutdownTimeout       time.Duration
}

func Setup(cfg Config) {
	opts := []uptrace.Option{
		uptrace.WithServiceName(cfg.ServiceName),
		uptrace.WithServiceVersion(cfg.ServiceVersion),
	}
	if cfg.DeploymentEnvironment != "" {
		opts = append(opts, uptrace.WithDeploymentEnvironment(cfg.DeploymentEnvironment))
	}
	uptrace.ConfigureOpentelemetry(opts...)
}

// Bootstrap 初始化并等待 uptrace
// 配合 [git.blauwelle.com/go/crate/exegroup] 使用
// env
//   - UPTRACE_DISABLED 存在就不再初始化
//   - UPTRACE_DSN 服务端地址
func Bootstrap(cfg Config) func(ctx context.Context) error {
	Setup(cfg)
	return func(ctx context.Context) error {
		<-ctx.Done()
		shutdownCtx := context.Background()
		if cfg.ShutdownTimeout >= 0 {
			var cancel func()
			shutdownCtx, cancel = context.WithTimeout(shutdownCtx, cfg.ShutdownTimeout)
			defer cancel()
		}
		return uptrace.Shutdown(shutdownCtx)
	}
}