// resource-lifecycle 创建并退役本次独占的空队列与订阅，不处理任何现有资源。
package main

import (
	"context"
	"crypto/rand"
	"encoding/hex"
	"encoding/json"
	"fmt"
	orbit "git.yuntuo.hk/k2safe/orbit/sdk/go"
	"os"
	"time"
)

func main() {
	if err := run(); err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
}
func run() error {
	token := os.Getenv("ORBIT_TOKEN")
	if path := os.Getenv("ORBIT_CREDENTIALS_FILE"); token == "" && path != "" {
		raw, err := os.ReadFile(path)
		if err != nil {
			return err
		}
		var c struct {
			Token string `json:"token"`
		}
		if err = json.Unmarshal(raw, &c); err != nil {
			return err
		}
		token = c.Token
	}
	client, err := orbit.NewClient(os.Getenv("ORBIT_URL"), orbit.Options{Token: token})
	if err != nil {
		return err
	}
	ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
	defer cancel()
	var random [16]byte
	if _, err = rand.Read(random[:]); err != nil {
		return err
	}
	runID := hex.EncodeToString(random[:])
	q, err := client.CreateQueue(ctx, runID+"-queue", orbit.CreateQueueRequest{Name: "lifecycle-" + runID, MaxConcurrency: 1, RatePerSecond: 10})
	if err != nil {
		return err
	}
	fmt.Printf("queue=%s\n", q.Queue.ID)
	sub, err := client.CreateSubscription(ctx, runID+"-sub", orbit.CreateSubscriptionRequest{Name: "lifecycle-" + runID, QueueID: q.Queue.ID})
	if err != nil {
		return err
	}
	fmt.Printf("subscription=%s\n", sub.Subscription.ID)
	in := orbit.RetireResourceRequest{ExpectedRevision: sub.Subscription.Revision, Reason: "isolated lifecycle example completed"}
	if _, err = client.RetireSubscription(ctx, sub.Subscription.ID, runID+"-retire-sub", in); err != nil {
		return err
	}
	replay, err := client.RetireSubscription(ctx, sub.Subscription.ID, runID+"-retire-sub", in)
	if err != nil {
		return err
	}
	if !replay.Deduplicated {
		return fmt.Errorf("retirement did not preserve operation identity")
	}
	retired, err := client.RetireQueue(ctx, q.Queue.ID, runID+"-retire-queue", orbit.RetireResourceRequest{ExpectedRevision: q.Queue.Revision, Reason: "isolated lifecycle example completed"})
	if err != nil {
		return err
	}
	if retired.Queue.RetiredAt == nil {
		return fmt.Errorf("queue retirement missing")
	}
	fmt.Println("retired=true history_preserved=true subscription_replay=true")
	return nil
}