x/execution/handler.go
package execution
import (
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/mesg-foundation/engine/x/execution/internal/types"
)
// NewHandler creates an sdk.Handler for all the execution type messages
func NewHandler(k Keeper) sdk.Handler {
return func(ctx sdk.Context, msg sdk.Msg) (*sdk.Result, error) {
ctx = ctx.WithEventManager(sdk.NewEventManager())
switch msg := msg.(type) {
case MsgCreate:
return handleMsgCreate(ctx, k, msg)
case MsgUpdate:
return handleMsgUpdate(ctx, k, msg)
default:
return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized %s message type: %T", types.ModuleName, msg)
}
}
}
// handleMsgCreate creates a new execution.
func handleMsgCreate(ctx sdk.Context, k Keeper, msg MsgCreate) (*sdk.Result, error) {
exec, err := k.Create(ctx, msg)
if err != nil {
return nil, err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, ModuleName),
sdk.NewAttribute(sdk.AttributeKeySender, msg.Signer.String()),
),
)
return &sdk.Result{
Data: exec.Hash,
Events: ctx.EventManager().Events(),
}, nil
}
// handleMsgUpdate updates an execution.
func handleMsgUpdate(ctx sdk.Context, k Keeper, msg MsgUpdate) (*sdk.Result, error) {
exec, err := k.Update(ctx, msg)
if err != nil {
return nil, err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, ModuleName),
sdk.NewAttribute(sdk.AttributeKeySender, msg.Executor.String()),
),
)
return &sdk.Result{
Data: exec.Hash,
Events: ctx.EventManager().Events(),
}, nil
}