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reward.go
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/
reward.go
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package service
import (
"context"
"fmt"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/mongo/options"
"github.com/spacemeshos/explorer-backend/model"
)
// GetReward returns reward by id.
func (e *Service) GetReward(ctx context.Context, rewardID string) (*model.Reward, error) {
reward, err := e.storage.GetReward(ctx, rewardID)
if err != nil {
return nil, fmt.Errorf("error get reward: %w", err)
}
if reward == nil {
return nil, ErrNotFound
}
return reward, nil
}
// GetRewards returns rewards by filter.
func (e *Service) GetRewards(ctx context.Context, page, perPage int64) ([]*model.Reward, int64, error) {
return e.getRewards(ctx, &bson.D{}, options.Find().SetSort(bson.D{{Key: "layer", Value: -1}}).SetLimit(perPage).SetSkip((page-1)*perPage))
}
func (e *Service) getRewards(ctx context.Context, filter *bson.D, options *options.FindOptions) (rewards []*model.Reward, total int64, err error) {
total, err = e.storage.CountRewards(ctx, filter)
if err != nil {
return nil, 0, fmt.Errorf("error count rewards: %w", err)
}
if total == 0 {
return []*model.Reward{}, 0, nil
}
rewards, err = e.storage.GetRewards(ctx, filter, options)
if err != nil {
return nil, 0, fmt.Errorf("error get rewards: %w", err)
}
return rewards, total, nil
}
func (e *Service) GetTotalRewards(ctx context.Context, filter *bson.D) (int64, int64, error) {
return e.storage.GetTotalRewards(ctx, filter)
}