package types

import (
	"github.com/cosmos/cosmos-sdk/codec"
	"github.com/cosmos/cosmos-sdk/codec/types"
	cryptocodec "github.com/cosmos/cosmos-sdk/crypto/codec"
	sdk "github.com/cosmos/cosmos-sdk/types"
)

// RegisterCodec registers all the necessary types and interfaces for the
// governance module.
func RegisterCodec(cdc *codec.LegacyAmino) {
	cdc.RegisterInterface((*Content)(nil), nil)
	cdc.RegisterConcrete(&MsgSubmitProposal{}, "cosmos-sdk/MsgSubmitProposal", nil)
	cdc.RegisterConcrete(&MsgDeposit{}, "cosmos-sdk/MsgDeposit", nil)
	cdc.RegisterConcrete(&MsgVote{}, "cosmos-sdk/MsgVote", nil)
	cdc.RegisterConcrete(&TextProposal{}, "cosmos-sdk/TextProposal", nil)
}

func RegisterInterfaces(registry types.InterfaceRegistry) {
	registry.RegisterImplementations((*sdk.Msg)(nil),
		&MsgSubmitProposal{},
		&MsgVote{},
		&MsgDeposit{},
	)
	registry.RegisterInterface(
		"cosmos.gov.v1beta1.Content",
		(*Content)(nil),
		&TextProposal{},
	)
}

// RegisterProposalTypeCodec registers an external proposal content type defined
// in another module for the internal ModuleCdc. This allows the MsgSubmitProposal
// to be correctly Amino encoded and decoded.
//
// NOTE: This should only be used for applications that are still using a concrete
// Amino codec for serialization.
func RegisterProposalTypeCodec(o interface{}, name string) {
	amino.RegisterConcrete(o, name, nil)
}

var (
	amino = codec.New()

	// ModuleCdc references the global x/gov module codec. Note, the codec should
	// ONLY be used in certain instances of tests and for JSON encoding as Amino is
	// still used for that purpose.
	//
	// The actual codec used for serialization should be provided to x/gov and
	// defined at the application level.
	ModuleCdc = codec.NewHybridCodec(amino, types.NewInterfaceRegistry())
)

func init() {
	RegisterCodec(amino)
	cryptocodec.RegisterCrypto(amino)
}