// Изменено: 2026-04-09
// ChangeMessageVisibilityV1 — меняет visibility timeout сообщения в очереди тенанта.
package gosqs

import (
"net/http"
"strings"
"time"

"shared-sqs/app/interfaces"
"shared-sqs/app/models"
"shared-sqs/app/utils"
"github.com/gorilla/mux"
log "github.com/sirupsen/logrus"
)

func ChangeMessageVisibilityV1(req *http.Request) (int, interfaces.AbstractResponseBody) {
requestBody := models.NewChangeMessageVisibilityRequest()
ok := utils.REQUEST_TRANSFORMER(requestBody, req, false)
if !ok {
log.Error("Invalid Request - ChangeMessageVisibilityV1")
return utils.CreateErrorResponseV1("InvalidParameterValue", true)
}

t := getTenantFromContext(req)
if t == nil {
return utils.CreateErrorResponseV1("InvalidClientTokenId", true)
}

vars := mux.Vars(req)
queueUrl := requestBody.QueueUrl
queueName := ""
if queueUrl == "" {
queueName = vars["queueName"]
} else {
uriSegments := strings.Split(queueUrl, "/")
queueName = uriSegments[len(uriSegments)-1]
}

key := tenantQueueKey(t.AccessKey, queueName)
receiptHandle := requestBody.ReceiptHandle
visibilityTimeout := requestBody.VisibilityTimeout

if visibilityTimeout > 43200 {
return utils.CreateErrorResponseV1("ValidationError", true)
}

if _, ok := models.SyncQueues.Queues[key]; !ok {
return utils.CreateErrorResponseV1("QueueNotFound", true)
}

models.SyncQueues.Lock()
messageFound := false
for i := 0; i < len(models.SyncQueues.Queues[key].Messages); i++ {
queue := models.SyncQueues.Queues[key]
msgs := queue.Messages
if msgs[i].ReceiptHandle == receiptHandle {
timeout := models.SyncQueues.Queues[key].VisibilityTimeout
if visibilityTimeout == 0 {
msgs[i].ReceiptTime = time.Now().UTC()
msgs[i].ReceiptHandle = ""
msgs[i].VisibilityTimeout = time.Now().Add(time.Duration(timeout) * time.Second)
msgs[i].Retry++
if queue.MaxReceiveCount > 0 &&
queue.DeadLetterQueue != nil &&
msgs[i].Retry >= queue.MaxReceiveCount {
queue.DeadLetterQueue.Messages = append(queue.DeadLetterQueue.Messages, msgs[i])
queue.Messages = append(queue.Messages[:i], queue.Messages[i+1:]...)
}
} else {
msgs[i].VisibilityTimeout = time.Now().Add(time.Duration(visibilityTimeout) * time.Second)
}
messageFound = true
break
}
}
models.SyncQueues.Unlock()
if !messageFound {
return utils.CreateErrorResponseV1("MessageNotInFlight", true)
}

respStruct := models.ChangeMessageVisibilityResult{
Xmlns:    models.BaseXmlns,
Metadata: models.BaseResponseMetadata,
}
return http.StatusOK, &respStruct
}