esclient

type Client interface {
	ClusterName() string

	// Cluster Settings API
	GetClusterNodeVersions() ([]string, error)
	GetThresholdEnabled() (bool, error)
	GetDiskWatermarks() (interface{}, interface{}, interface{}, error)
	GetMinMasterNodes() (int32, error)
	SetMinMasterNodes(numberMasters int32) (bool, error)
	DoSynchronizedFlush() (bool, error)

	// Cluster State API
	GetLowestClusterVersion() (string, error)
	IsNodeInCluster(nodeName string) (bool, error)

	// Health API
	GetClusterHealth() (api.ClusterHealth, error)
	GetClusterHealthStatus() (string, error)
	GetClusterNodeCount() (int32, error)

	// Index API
	GetIndex(name string) (*estypes.Index, error)
	CreateIndex(name string, index *estypes.Index) error
	ReIndex(src, dst, script, lang string) error
	GetAllIndices(name string) (estypes.CatIndicesResponses, error)

	// Index Alias API
	ListIndicesForAlias(aliasPattern string) ([]string, error)
	UpdateAlias(actions estypes.AliasActions) error
	AddAliasForOldIndices() bool

	// Index Settings API
	GetIndexSettings(name string) (*estypes.Index, error)
	UpdateIndexSettings(name string, settings *estypes.IndexSettings) error

	// Nodes API
	GetNodeDiskUsage(nodeName string) (string, float64, error)

	// Replicas
	UpdateReplicaCount(replicaCount int32) error
	GetIndexReplicaCounts() (map[string]interface{}, error)
	GetLowestReplicaValue() (int32, error)

	// Shards API
	ClearTransientShardAllocation() (bool, error)
	GetShardAllocation() (string, error)
	SetShardAllocation(state api.ShardAllocationState) (bool, error)

	// Index Templates API
	CreateIndexTemplate(name string, template *estypes.IndexTemplate) error
	DeleteIndexTemplate(name string) error
	ListTemplates() (sets.String, error)
	GetIndexTemplates() (map[string]estypes.GetIndexTemplate, error)
	UpdateTemplatePrimaryShards(shardCount int32) error

	SetSendRequestFn(fn FnEsSendRequest)
}

type EsRequest struct {
	Method          string // use net/http constants https://golang.org/pkg/net/http/#pkg-constants
	URI             string
	RequestBody     string
	StatusCode      int
	RawResponseBody string
	ResponseBody    map[string]interface{}
	Error           error
}

type FnEsSendRequest func(log logr.Logger, cluster, namespace string, payload *EsRequest, client k8sclient.Client)