108 lines
3.0 KiB
Go
108 lines
3.0 KiB
Go
package gov
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import (
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"fmt"
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sdk "github.com/cosmos/cosmos-sdk/types"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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"github.com/cosmos/cosmos-sdk/x/gov/types"
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)
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// NewHandler creates an sdk.Handler for all the gov type messages
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func NewHandler(keeper Keeper) sdk.Handler {
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return func(ctx sdk.Context, msg sdk.Msg) (*sdk.Result, error) {
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ctx = ctx.WithEventManager(sdk.NewEventManager())
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switch msg := msg.(type) {
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case MsgDeposit:
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return handleMsgDeposit(ctx, keeper, msg)
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case MsgSubmitProposalI:
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return handleMsgSubmitProposal(ctx, keeper, msg)
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case MsgVote:
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return handleMsgVote(ctx, keeper, msg)
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default:
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return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized %s message type: %T", ModuleName, msg)
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}
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}
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}
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func handleMsgSubmitProposal(ctx sdk.Context, keeper Keeper, msg MsgSubmitProposalI) (*sdk.Result, error) {
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proposal, err := keeper.SubmitProposal(ctx, msg.GetContent())
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if err != nil {
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return nil, err
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}
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votingStarted, err := keeper.AddDeposit(ctx, proposal.ProposalID, msg.GetProposer(), msg.GetInitialDeposit())
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if err != nil {
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return nil, err
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}
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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sdk.EventTypeMessage,
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sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
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sdk.NewAttribute(sdk.AttributeKeySender, msg.GetProposer().String()),
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),
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)
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submitEvent := sdk.NewEvent(types.EventTypeSubmitProposal, sdk.NewAttribute(types.AttributeKeyProposalType, msg.GetContent().ProposalType()))
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if votingStarted {
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submitEvent = submitEvent.AppendAttributes(
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sdk.NewAttribute(types.AttributeKeyVotingPeriodStart, fmt.Sprintf("%d", proposal.ProposalID)),
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)
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}
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ctx.EventManager().EmitEvent(submitEvent)
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return &sdk.Result{
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Data: GetProposalIDBytes(proposal.ProposalID),
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Events: ctx.EventManager().Events(),
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}, nil
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}
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func handleMsgDeposit(ctx sdk.Context, keeper Keeper, msg MsgDeposit) (*sdk.Result, error) {
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votingStarted, err := keeper.AddDeposit(ctx, msg.ProposalID, msg.Depositor, msg.Amount)
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if err != nil {
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return nil, err
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}
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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sdk.EventTypeMessage,
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sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
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sdk.NewAttribute(sdk.AttributeKeySender, msg.Depositor.String()),
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),
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)
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if votingStarted {
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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types.EventTypeProposalDeposit,
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sdk.NewAttribute(types.AttributeKeyVotingPeriodStart, fmt.Sprintf("%d", msg.ProposalID)),
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),
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)
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}
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return &sdk.Result{Events: ctx.EventManager().Events()}, nil
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}
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func handleMsgVote(ctx sdk.Context, keeper Keeper, msg MsgVote) (*sdk.Result, error) {
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err := keeper.AddVote(ctx, msg.ProposalID, msg.Voter, msg.Option)
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if err != nil {
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return nil, err
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}
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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sdk.EventTypeMessage,
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sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
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sdk.NewAttribute(sdk.AttributeKeySender, msg.Voter.String()),
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),
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)
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return &sdk.Result{Events: ctx.EventManager().Events()}, nil
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}
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