portainer/portainer

package edgestack

import (
    "fmt"

    portainer "github.com/portainer/portainer/api"

    "github.com/rs/zerolog/log"
)

type ServiceTx struct {
    service *Service
    tx      portainer.Transaction
}

func (service ServiceTx) BucketName() string {
    return BucketName
}

// EdgeStacks returns an array containing all edge stacks
func (service ServiceTx) EdgeStacks() ([]portainer.EdgeStack, error) {
    var stacks = make([]portainer.EdgeStack, 0)

    err := service.tx.GetAll(
        BucketName,
        &portainer.EdgeStack{},
        func(obj interface{}) (interface{}, error) {
            stack, ok := obj.(*portainer.EdgeStack)
            if !ok {
                log.Debug().Str("obj", fmt.Sprintf("%#v", obj)).Msg("failed to convert to EdgeStack object")
                return nil, fmt.Errorf("failed to convert to EdgeStack object: %s", obj)
            }

            stacks = append(stacks, *stack)

            return &portainer.EdgeStack{}, nil
        })

    return stacks, err
}

// EdgeStack returns an Edge stack by ID.
func (service ServiceTx) EdgeStack(ID portainer.EdgeStackID) (*portainer.EdgeStack, error) {
    var stack portainer.EdgeStack
    identifier := service.service.connection.ConvertToKey(int(ID))

    err := service.tx.GetObject(BucketName, identifier, &stack)
    if err != nil {
        return nil, err
    }

    return &stack, nil
}

// EdgeStackVersion returns the version of the given edge stack ID directly from an in-memory index
func (service ServiceTx) EdgeStackVersion(ID portainer.EdgeStackID) (int, bool) {
    service.service.mu.RLock()
    v, ok := service.service.idxVersion[ID]
    service.service.mu.RUnlock()

    return v, ok
}

// CreateEdgeStack saves an Edge stack object to db.
func (service ServiceTx) Create(id portainer.EdgeStackID, edgeStack *portainer.EdgeStack) error {
    edgeStack.ID = id

    err := service.tx.CreateObjectWithId(
        BucketName,
        int(edgeStack.ID),
        edgeStack,
    )
    if err != nil {
        return err
    }

    service.service.mu.Lock()
    service.service.idxVersion[id] = edgeStack.Version
    service.service.cacheInvalidationFn(id)
    service.service.mu.Unlock()

    return nil
}

// UpdateEdgeStack updates an Edge stack.
func (service ServiceTx) UpdateEdgeStack(ID portainer.EdgeStackID, edgeStack *portainer.EdgeStack) error {
    service.service.mu.Lock()
    defer service.service.mu.Unlock()

    identifier := service.service.connection.ConvertToKey(int(ID))

    err := service.tx.UpdateObject(BucketName, identifier, edgeStack)
    if err != nil {
        return err
    }

    service.service.idxVersion[ID] = edgeStack.Version
    service.service.cacheInvalidationFn(ID)

    return nil
}

// Deprecated: use UpdateEdgeStack inside a transaction instead.
func (service ServiceTx) UpdateEdgeStackFunc(ID portainer.EdgeStackID, updateFunc func(edgeStack *portainer.EdgeStack)) error {
    edgeStack, err := service.EdgeStack(ID)
    if err != nil {
        return err
    }

    updateFunc(edgeStack)

    return service.UpdateEdgeStack(ID, edgeStack)
}

// DeleteEdgeStack deletes an Edge stack.
func (service ServiceTx) DeleteEdgeStack(ID portainer.EdgeStackID) error {
    service.service.mu.Lock()
    defer service.service.mu.Unlock()

    identifier := service.service.connection.ConvertToKey(int(ID))

    err := service.tx.DeleteObject(BucketName, identifier)
    if err != nil {
        return err
    }

    delete(service.service.idxVersion, ID)

    service.service.cacheInvalidationFn(ID)

    return nil
}

// GetNextIdentifier returns the next identifier for an environment(endpoint).
func (service ServiceTx) GetNextIdentifier() int {
    return service.tx.GetNextIdentifier(BucketName)
}