// Copyright 2022 Evmos Foundation
// This file is part of the Evmos Network packages.
//
// Evmos is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The Evmos packages are distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the Evmos packages. If not, see https://github.com/evmos/evmos/blob/main/LICENSE

package vesting

import (
	"context"
	"encoding/json"

	abci "github.com/cometbft/cometbft/abci/types"
	"github.com/gorilla/mux"
	"github.com/grpc-ecosystem/grpc-gateway/runtime"
	"github.com/spf13/cobra"

	"github.com/cosmos/cosmos-sdk/client"
	"github.com/cosmos/cosmos-sdk/codec"
	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
	sdk "github.com/cosmos/cosmos-sdk/types"
	"github.com/cosmos/cosmos-sdk/types/module"
	authkeeper "github.com/cosmos/cosmos-sdk/x/auth/keeper"
	bankkeeper "github.com/cosmos/cosmos-sdk/x/bank/keeper"
	stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper"

	"github.com/evmos/evmos/v15/x/vesting/client/cli"
	"github.com/evmos/evmos/v15/x/vesting/keeper"
	"github.com/evmos/evmos/v15/x/vesting/types"
)

var (
	_ module.AppModule      = AppModule{}
	_ module.AppModuleBasic = AppModuleBasic{}
)

// AppModuleBasic defines the basic application module used by the sub-vesting
// module. The module itself contain no special logic or state other than message
// handling.
type AppModuleBasic struct{}

// Name returns the module's name.
func (AppModuleBasic) Name() string {
	return types.ModuleName
}

// RegisterCodec registers the module's types with the given codec.
func (AppModuleBasic) RegisterLegacyAminoCodec(cdc *codec.LegacyAmino) {
	types.RegisterLegacyAminoCodec(cdc)
}

// RegisterInterfaces registers the module's interfaces and implementations with
// the given interface registry.
func (AppModuleBasic) RegisterInterfaces(registry codectypes.InterfaceRegistry) {
	types.RegisterInterfaces(registry)
}

// DefaultGenesis returns the module's default genesis state as raw bytes.
func (AppModuleBasic) DefaultGenesis(_ codec.JSONCodec) json.RawMessage {
	return []byte("{}")
}

// ValidateGenesis performs genesis state validation. Currently, this is a no-op.
func (AppModuleBasic) ValidateGenesis(_ codec.JSONCodec, _ client.TxEncodingConfig, _ json.RawMessage) error {
	return nil
}

// RegisterRESTRoutes registers module's REST handlers. Currently, this is a no-op.
func (AppModuleBasic) RegisterRESTRoutes(_ client.Context, _ *mux.Router) {}

// RegisterGRPCGatewayRoutes registers the module's gRPC Gateway routes.
func (a AppModuleBasic) RegisterGRPCGatewayRoutes(c client.Context, serveMux *runtime.ServeMux) {
	if err := types.RegisterQueryHandlerClient(context.Background(), serveMux, types.NewQueryClient(c)); err != nil {
		panic(err)
	}
}

// GetTxCmd returns the root tx command for the auth module.
func (AppModuleBasic) GetTxCmd() *cobra.Command {
	return cli.NewTxCmd()
}

// GetQueryCmd returns the module's root query command. Currently, this is a no-op.
func (AppModuleBasic) GetQueryCmd() *cobra.Command {
	return cli.GetQueryCmd()
}

// AppModule extends the AppModuleBasic implementation by implementing the
// AppModule interface.
type AppModule struct {
	AppModuleBasic
	keeper keeper.Keeper
	ak     authkeeper.AccountKeeper
	bk     bankkeeper.Keeper
	sk     stakingkeeper.Keeper
}

// NewAppModule returns a new vesting AppModule.
func NewAppModule(
	k keeper.Keeper,
	ak authkeeper.AccountKeeper,
	bk bankkeeper.Keeper,
	sk stakingkeeper.Keeper,
) AppModule {
	return AppModule{
		AppModuleBasic: AppModuleBasic{},
		keeper:         k,
		ak:             ak,
		bk:             bk,
		sk:             sk,
	}
}

func (AppModule) Name() string {
	return types.ModuleName
}

// RegisterInvariants performs a no-op; there are no invariants to enforce.
func (AppModule) RegisterInvariants(_ sdk.InvariantRegistry) {}

func (am AppModule) NewHandler() sdk.Handler {
	return NewHandler(am.keeper)
}

// RegisterServices registers module services.
func (am AppModule) RegisterServices(cfg module.Configurator) {
	types.RegisterMsgServer(cfg.MsgServer(), am.keeper)
	types.RegisterQueryServer(cfg.QueryServer(), am.keeper)
}

// InitGenesis performs a no-op.
func (am AppModule) InitGenesis(_ sdk.Context, _ codec.JSONCodec, _ json.RawMessage) []abci.ValidatorUpdate {
	return []abci.ValidatorUpdate{}
}

// BeginBlock performs a no-op.
func (am AppModule) BeginBlock(_ sdk.Context, _ abci.RequestBeginBlock) {}

// EndBlock performs a no-op.
func (am AppModule) EndBlock(_ sdk.Context, _ abci.RequestEndBlock) []abci.ValidatorUpdate {
	return []abci.ValidatorUpdate{}
}

// ExportGenesis is always empty, as InitGenesis does nothing either.
func (am AppModule) ExportGenesis(_ sdk.Context, cdc codec.JSONCodec) json.RawMessage {
	return am.DefaultGenesis(cdc)
}

// ConsensusVersion implements AppModule/ConsensusVersion.
func (AppModule) ConsensusVersion() uint64 { return 1 }
