/
msg_server.go
136 lines (107 loc) · 3.46 KB
/
msg_server.go
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package keeper
import (
"context"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/fibonacci-chain/core/x/tokenfactory/types"
)
type msgServer struct {
Keeper
}
// NewMsgServerImpl returns an implementation of the MsgServer interface
// for the provided Keeper.
func NewMsgServerImpl(keeper Keeper) types.MsgServer {
return &msgServer{Keeper: keeper}
}
var _ types.MsgServer = msgServer{}
func (server msgServer) CreateDenom(goCtx context.Context, msg *types.MsgCreateDenom) (*types.MsgCreateDenomResponse, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
denom, err := server.Keeper.CreateDenom(ctx, msg.Sender, msg.Subdenom)
if err != nil {
return nil, err
}
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
types.TypeMsgCreateDenom,
sdk.NewAttribute(types.AttributeCreator, msg.Sender),
sdk.NewAttribute(types.AttributeNewTokenDenom, denom),
),
})
return &types.MsgCreateDenomResponse{
NewTokenDenom: denom,
}, nil
}
func (server msgServer) Mint(goCtx context.Context, msg *types.MsgMint) (*types.MsgMintResponse, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
// pay some extra gas cost to give a better error here.
_, denomExists := server.bankKeeper.GetDenomMetaData(ctx, msg.Amount.Denom)
if !denomExists {
return nil, types.ErrDenomDoesNotExist.Wrapf("denom: %s", msg.Amount.Denom)
}
authorityMetadata, err := server.Keeper.GetAuthorityMetadata(ctx, msg.Amount.GetDenom())
if err != nil {
return nil, err
}
if msg.Sender != authorityMetadata.GetAdmin() {
return nil, types.ErrUnauthorized
}
err = server.Keeper.mintTo(ctx, msg.Amount, msg.Sender)
if err != nil {
return nil, err
}
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
types.TypeMsgMint,
sdk.NewAttribute(types.AttributeMintToAddress, msg.Sender),
sdk.NewAttribute(types.AttributeAmount, msg.Amount.String()),
),
})
return &types.MsgMintResponse{}, nil
}
func (server msgServer) Burn(goCtx context.Context, msg *types.MsgBurn) (*types.MsgBurnResponse, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
authorityMetadata, err := server.Keeper.GetAuthorityMetadata(ctx, msg.Amount.GetDenom())
if err != nil {
return nil, err
}
if msg.Sender != authorityMetadata.GetAdmin() {
return nil, types.ErrUnauthorized
}
err = server.Keeper.burnFrom(ctx, msg.Amount, msg.Sender)
if err != nil {
return nil, err
}
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
types.TypeMsgBurn,
sdk.NewAttribute(types.AttributeBurnFromAddress, msg.Sender),
sdk.NewAttribute(types.AttributeAmount, msg.Amount.String()),
),
})
return &types.MsgBurnResponse{}, nil
}
func (server msgServer) ChangeAdmin(goCtx context.Context, msg *types.MsgChangeAdmin) (*types.MsgChangeAdminResponse, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
authorityMetadata, err := server.Keeper.GetAuthorityMetadata(ctx, msg.Denom)
if err != nil {
return nil, err
}
if msg.Sender != authorityMetadata.GetAdmin() {
return nil, types.ErrUnauthorized
}
// Validate new admin we change to should be different from current admin
if msg.NewAdmin == authorityMetadata.GetAdmin() {
return nil, types.ErrAdminAlreadyExists
}
err = server.Keeper.setAdmin(ctx, msg.Denom, msg.NewAdmin)
if err != nil {
return nil, err
}
ctx.EventManager().EmitEvents(sdk.Events{
sdk.NewEvent(
types.TypeMsgChangeAdmin,
sdk.NewAttribute(types.AttributeDenom, msg.GetDenom()),
sdk.NewAttribute(types.AttributeNewAdmin, msg.NewAdmin),
),
})
return &types.MsgChangeAdminResponse{}, nil
}