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operation.go
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operation.go
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package operation
import (
"encoding/json"
"errors"
"fmt"
"github.com/lidofinance/dc4bc/client/modules/state"
"github.com/lidofinance/dc4bc/client/types"
)
const (
OperationsKey = "operations"
DeletedOperationsKey = "deleted_operations"
)
type OperationRepo interface {
PutOperation(operation *types.Operation) error
DeleteOperation(operation *types.Operation) error
GetOperations() (map[string]*types.Operation, error)
GetOperationByID(operationID string) (*types.Operation, error)
}
type BaseOperationRepo struct {
state state.State
operationsCompositeKey string
deleteOperationsCompositeKey string
}
func NewOperationRepo(s state.State, topic string) (*BaseOperationRepo, error) {
operationsCompositeKey := state.MakeCompositeKeyString(topic, OperationsKey)
deleteOperationsCompositeKey := state.MakeCompositeKeyString(topic, DeletedOperationsKey)
repo := &BaseOperationRepo{
state: s,
operationsCompositeKey: operationsCompositeKey,
deleteOperationsCompositeKey: deleteOperationsCompositeKey,
}
if err := repo.initJsonKey(operationsCompositeKey); err != nil {
return nil, fmt.Errorf("failed to init %s storage: %w", string(operationsCompositeKey), err)
}
if err := repo.initJsonKey(deleteOperationsCompositeKey); err != nil {
return nil, fmt.Errorf("failed to init %s storage: %w", string(deleteOperationsCompositeKey), err)
}
return repo, nil
}
func (r *BaseOperationRepo) PutOperation(operation *types.Operation) error {
operations, err := r.GetOperations()
if err != nil {
return fmt.Errorf("failed to getOperations: %w", err)
}
if _, ok := operations[operation.ID]; ok {
return fmt.Errorf("operation %s already exists", operation.ID)
}
operations[operation.ID] = operation
operationsJSON, err := json.Marshal(operations)
if err != nil {
return fmt.Errorf("failed to marshal operations: %w", err)
}
if err := r.state.Set(r.operationsCompositeKey, operationsJSON); err != nil {
return fmt.Errorf("failed to put operations: %w", err)
}
return nil
}
// DeleteOperation deletes operation from an operation pool
func (r *BaseOperationRepo) DeleteOperation(operation *types.Operation) error {
deletedOperations, err := r.getDeletedOperations()
if err != nil {
return fmt.Errorf("failed to getDeletedOperations: %w", err)
}
if _, ok := deletedOperations[operation.ID]; ok {
return fmt.Errorf("operation %s was already deleted", operation.ID)
}
deletedOperations[operation.ID] = operation
deletedOperationsJSON, err := json.Marshal(deletedOperations)
if err != nil {
return fmt.Errorf("failed to marshal deleted operations: %w", err)
}
if err := r.state.Set(r.deleteOperationsCompositeKey, deletedOperationsJSON); err != nil {
return fmt.Errorf("failed to put deleted operations: %w", err)
}
operations, err := r.GetOperations()
if err != nil {
return fmt.Errorf("failed to getOperations: %w", err)
}
delete(operations, operation.ID)
operationsJSON, err := json.Marshal(operations)
if err != nil {
return fmt.Errorf("failed to marshal operations: %w", err)
}
if err := r.state.Set(r.operationsCompositeKey, operationsJSON); err != nil {
return fmt.Errorf("failed to put operations: %w", err)
}
return nil
}
func (r *BaseOperationRepo) GetOperationByID(operationID string) (*types.Operation, error) {
operations, err := r.GetOperations()
if err != nil {
return nil, fmt.Errorf("failed to getOperations: %w", err)
}
operation, ok := operations[operationID]
if !ok {
return nil, errors.New("operation not found")
}
return operation, nil
}
// GetOperations returns all operations from an operation pool
func (r *BaseOperationRepo) GetOperations() (map[string]*types.Operation, error) {
deletedOperations, err := r.getDeletedOperations()
if err != nil {
return nil, fmt.Errorf("failed to getDeletedOperations: %w", err)
}
bz, err := r.state.Get(r.operationsCompositeKey)
if err != nil {
return nil, fmt.Errorf("failed to get Operations (key: %s): %w", r.deleteOperationsCompositeKey, err)
}
if bz == nil {
return make(map[string]*types.Operation), nil
}
var operations map[string]*types.Operation
if err := json.Unmarshal(bz, &operations); err != nil {
return nil, fmt.Errorf("failed to unmarshal Operations: %w", err)
}
result := make(map[string]*types.Operation)
for id, operation := range operations {
if _, ok := deletedOperations[id]; !ok {
result[id] = operation
}
}
return result, nil
}
func (r *BaseOperationRepo) getDeletedOperations() (map[string]*types.Operation, error) {
bz, err := r.state.Get(r.deleteOperationsCompositeKey)
if err != nil {
return nil, fmt.Errorf("failed to get deleted Operations (key: %s): %w", r.deleteOperationsCompositeKey, err)
}
if bz == nil {
return make(map[string]*types.Operation), nil
}
var operations map[string]*types.Operation
if err := json.Unmarshal(bz, &operations); err != nil {
return nil, fmt.Errorf("failed to unmarshal deleted Operations: %w", err)
}
return operations, nil
}
func (r *BaseOperationRepo) initJsonKey(key string) error {
err := r.state.Set(key, []byte("{}"))
if err != nil {
return fmt.Errorf("failed to init state: %w", err)
}
return nil
}