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create_pid.go
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create_pid.go
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package commands
import (
"context"
"github.com/volatiletech/null/v8"
"github.com/DIMO-Network/vehicle-signal-decoding/internal/infrastructure/db/models"
"github.com/DIMO-Network/vehicle-signal-decoding/internal/infrastructure/exceptions"
"github.com/pkg/errors"
"github.com/volatiletech/sqlboiler/v4/boil"
"github.com/DIMO-Network/shared/db"
)
type CreatePidCommandHandler struct {
DBS func() *db.ReaderWriter
}
func NewCreatePidCommandHandler(dbs func() *db.ReaderWriter) CreatePidCommandHandler {
return CreatePidCommandHandler{DBS: dbs}
}
type CreatePidCommandRequest struct {
ID int64
TemplateName string
Header []byte
Mode []byte
Pid []byte
Formula string
IntervalSeconds int32
Protocol *string
SignalName string
CanFlowControlClear *bool
CanFlowControlIDPair *string
}
type CreatePidCommandResponse struct {
ID int64
}
func (h CreatePidCommandHandler) Execute(ctx context.Context, req *CreatePidCommandRequest) (*CreatePidCommandResponse, error) {
exists, err := models.PidConfigs(
models.PidConfigWhere.SignalName.EQ(req.SignalName),
models.PidConfigWhere.TemplateName.EQ(req.TemplateName),
).Exists(ctx, h.DBS().Reader)
if err != nil {
return nil, &exceptions.InternalError{
Err: errors.Wrapf(err, "error checking if pid config exists: %s", req.TemplateName),
}
}
if exists {
return nil, &exceptions.ConflictError{
Err: errors.Errorf("pid config already exists: %s", req.TemplateName),
}
}
pid := &models.PidConfig{
TemplateName: req.TemplateName,
Header: req.Header,
Mode: req.Mode,
Pid: req.Pid,
Formula: req.Formula,
IntervalSeconds: int(req.IntervalSeconds),
Protocol: null.StringFromPtr(req.Protocol),
SignalName: req.SignalName,
}
canFlowControlClear := null.BoolFromPtr(req.CanFlowControlClear)
canFlowControlIDPair := null.StringFromPtr(req.CanFlowControlIDPair)
if !canFlowControlClear.Valid {
pid.CanFlowControlClear = null.BoolFromPtr(req.CanFlowControlClear)
}
if canFlowControlIDPair.Valid {
pid.CanFlowControlIDPair = null.StringFromPtr(req.CanFlowControlIDPair)
}
err = pid.Insert(ctx, h.DBS().Writer, boil.Infer())
if err != nil {
return nil, &exceptions.InternalError{
Err: errors.Wrapf(err, "error inserting pid with id: %d", req.ID),
}
}
return &CreatePidCommandResponse{ID: pid.ID}, nil
}