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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| package order_usecase | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
|
|
||
| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/holiman/uint256" | ||
| "github.com/rollmelette/rollmelette" | ||
| "github.com/tribeshq/tribes/internal/domain/entity" | ||
| ) | ||
|
|
||
| type CancelOrderInputDTO struct { | ||
| Id uint | ||
| } | ||
|
|
||
| type CancelOrderOutputDTO struct { | ||
| Id uint | ||
| CrowdfundingId uint | ||
| Investor common.Address | ||
| Amount *uint256.Int | ||
| InterestRate *uint256.Int | ||
| State string | ||
| CreatedAt int64 | ||
| UpdatedAt int64 | ||
| } | ||
|
|
||
| type CancelOrderUseCase struct { | ||
| UserRepository entity.UserRepository | ||
| OrderRepository entity.OrderRepository | ||
| CrowdfundingRepository entity.CrowdfundingRepository | ||
| } | ||
|
|
||
| func NewCancelOrderUseCase(userRepository entity.UserRepository, orderRepository entity.OrderRepository, crowdfundingRepository entity.CrowdfundingRepository) *CancelOrderUseCase { | ||
| return &CancelOrderUseCase{ | ||
| UserRepository: userRepository, | ||
| OrderRepository: orderRepository, | ||
| CrowdfundingRepository: crowdfundingRepository, | ||
| } | ||
| } | ||
|
|
||
| func (c *CancelOrderUseCase) Execute(ctx context.Context, input *CancelOrderInputDTO, metadata rollmelette.Metadata) (*CancelOrderOutputDTO, error) { | ||
| order, err := c.OrderRepository.FindOrderById(ctx, input.Id) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if order.Investor != metadata.MsgSender { | ||
| return nil, errors.New("only the investor can cancel the order") | ||
| } | ||
| crowdfunding, err := c.CrowdfundingRepository.FindCrowdfundingById(ctx, order.CrowdfundingId) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if crowdfunding.ClosesAt < metadata.BlockTimestamp { | ||
| return nil, errors.New("cannot cancel order after crowdfunding closes") | ||
| } | ||
| err = c.OrderRepository.DeleteOrder(ctx, input.Id) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &CancelOrderOutputDTO{ | ||
| Id: order.Id, | ||
| CrowdfundingId: order.CrowdfundingId, | ||
| Investor: order.Investor, | ||
| Amount: order.Amount, | ||
| InterestRate: order.InterestRate, | ||
| State: string(order.State), | ||
| CreatedAt: order.CreatedAt, | ||
| UpdatedAt: order.UpdatedAt, | ||
| }, nil | ||
| } |