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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package gapi | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
|
|
||
| db "github.com/aradwann/eenergy/db/store" | ||
| "github.com/aradwann/eenergy/pb" | ||
| "github.com/aradwann/eenergy/util" | ||
| "github.com/aradwann/eenergy/val" | ||
| "google.golang.org/genproto/googleapis/rpc/errdetails" | ||
| "google.golang.org/grpc/codes" | ||
| "google.golang.org/grpc/status" | ||
| ) | ||
|
|
||
| func (server *Server) TransferEnergy(ctx context.Context, req *pb.TransferEnergyRequest) (*pb.TransferEnergyResponse, error) { | ||
| authPayload, err := server.authorizeUser(ctx, []string{util.AdminRole, util.GeneratorRole}) | ||
| if err != nil { | ||
| return nil, unauthenticatedError(err) | ||
| } | ||
| violations := validateTransferEnergyRequest(req) | ||
| if violations != nil { | ||
| return nil, invalidArgumentError(violations) | ||
| } | ||
|
|
||
| fromAccount, err := server.store.GetAccount(ctx, req.FromAccountId) | ||
| if err != nil { | ||
| if errors.Is(err, db.ErrRecordNotFound) { | ||
| return nil, status.Errorf(codes.NotFound, "account not found") | ||
| } | ||
| return nil, status.Errorf(codes.Internal, "failed to get user account: %s", err) | ||
| } | ||
| if authPayload.Username != fromAccount.Owner { | ||
| return nil, status.Error(codes.PermissionDenied, "cannot transfer from this account") | ||
| } | ||
|
|
||
| arg := db.TransferTxParams{ | ||
| FromAccountID: req.GetFromAccountId(), | ||
| ToAccountID: req.GetToAccountId(), | ||
| Amount: req.GetAmount(), | ||
| } | ||
|
|
||
| transferRes, err := server.store.TransferTx(ctx, arg) | ||
| if err != nil { | ||
| if errors.Is(err, db.ErrRecordNotFound) { | ||
| return nil, status.Errorf(codes.NotFound, "user not found") | ||
| } | ||
| return nil, status.Errorf(codes.Internal, "failed to transfer energy units : %s", err) | ||
| } | ||
|
|
||
| rsp := &pb.TransferEnergyResponse{ | ||
| Transfer: convertTransfer(transferRes.Transfer), | ||
| FromAccount: convertAccount(transferRes.FromAccount), | ||
| FromEntry: convertEntry(transferRes.FromEntry), | ||
| } | ||
| return rsp, nil | ||
| } | ||
|
|
||
| func validateTransferEnergyRequest(req *pb.TransferEnergyRequest) (violations []*errdetails.BadRequest_FieldViolation) { | ||
| if err := val.ValidateAccountId(req.GetFromAccountId()); err != nil { | ||
| violations = append(violations, fieldViolation("from_account_id", err)) | ||
| } | ||
|
|
||
| if err := val.ValidateAccountId(req.GetToAccountId()); err != nil { | ||
| violations = append(violations, fieldViolation("to_account_id", err)) | ||
| } | ||
|
|
||
| if err := val.ValidateAmount(req.GetAmount()); err != nil { | ||
| violations = append(violations, fieldViolation("amount", err)) | ||
| } | ||
|
|
||
| return | ||
| } |
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