gen_app.go

package testutil

import (
	"time"

	sdkmath "cosmossdk.io/math"
	dbm "github.com/cometbft/cometbft-db"
	"github.com/cometbft/cometbft/libs/log"
	tmtypes "github.com/cometbft/cometbft/types"
	"github.com/cosmos/cosmos-sdk/baseapp"
	"github.com/cosmos/cosmos-sdk/codec"
	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
	cryptocodec "github.com/cosmos/cosmos-sdk/crypto/codec"
	"github.com/cosmos/cosmos-sdk/crypto/keys/secp256k1"
	"github.com/cosmos/cosmos-sdk/testutil/mock"
	simtestutil "github.com/cosmos/cosmos-sdk/testutil/sims"
	sdk "github.com/cosmos/cosmos-sdk/types"
	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"

	testapp "github.com/ignite/modules/app"
	"github.com/ignite/modules/cmd"
)

func GenApp(chainID string, withGenesis bool, invCheckPeriod uint) (*testapp.App, testapp.GenesisState) {
	var (
		db     = dbm.NewMemDB()
		encCdc = cmd.MakeEncodingConfig(testapp.ModuleBasics)
		app    = testapp.New(
			log.NewNopLogger(),
			db,
			nil,
			true,
			map[int64]bool{},
			testapp.DefaultNodeHome,
			invCheckPeriod,
			encCdc,
			simtestutil.EmptyAppOptions{},
			baseapp.SetChainID(chainID),
		)
	)
	originalApp := app.(*testapp.App)
	if withGenesis {
		genesisState := testapp.NewDefaultGenesisState(encCdc.Marshaler)
		privVal := mock.NewPV()
		pubKey, _ := privVal.GetPubKey()
		// create validator set with single validator
		validator := tmtypes.NewValidator(pubKey, 1)
		valSet := tmtypes.NewValidatorSet([]*tmtypes.Validator{validator})

		// generate genesis account
		senderPrivKey := secp256k1.GenPrivKey()
		acc := authtypes.NewBaseAccount(senderPrivKey.PubKey().Address().Bytes(), senderPrivKey.PubKey(), 0, 0)
		balances := banktypes.Balance{
			Address: acc.GetAddress().String(),
			Coins:   sdk.NewCoins(sdk.NewCoin(sdk.DefaultBondDenom, sdkmath.NewInt(100000000000000))),
		}
		genesisState = genesisStateWithValSet(encCdc.Marshaler, genesisState, valSet, []authtypes.GenesisAccount{acc}, balances)
		return originalApp, genesisState
	}

	return originalApp, testapp.GenesisState{}
}

func genesisStateWithValSet(
	cdc codec.Codec,
	genesisState testapp.GenesisState,
	valSet *tmtypes.ValidatorSet,
	genAccs []authtypes.GenesisAccount,
	balances ...banktypes.Balance,
) testapp.GenesisState { // set genesis accounts
	authGenesis := authtypes.NewGenesisState(authtypes.DefaultParams(), genAccs)
	genesisState[authtypes.ModuleName] = cdc.MustMarshalJSON(authGenesis)

	validators := make([]stakingtypes.Validator, 0, len(valSet.Validators))
	delegations := make([]stakingtypes.Delegation, 0, len(valSet.Validators))

	bondAmt := sdk.DefaultPowerReduction

	for _, val := range valSet.Validators {
		pk, _ := cryptocodec.FromTmPubKeyInterface(val.PubKey)
		pkAny, _ := codectypes.NewAnyWithValue(pk)
		validator := stakingtypes.Validator{
			OperatorAddress:   sdk.ValAddress(val.Address).String(),
			ConsensusPubkey:   pkAny,
			Jailed:            false,
			Status:            stakingtypes.Bonded,
			Tokens:            bondAmt,
			DelegatorShares:   sdk.OneDec(),
			Description:       stakingtypes.Description{},
			UnbondingHeight:   int64(0),
			UnbondingTime:     time.Unix(0, 0).UTC(),
			Commission:        stakingtypes.NewCommission(sdk.ZeroDec(), sdk.ZeroDec(), sdk.ZeroDec()),
			MinSelfDelegation: sdkmath.ZeroInt(),
		}
		validators = append(validators, validator)
		delegations = append(delegations, stakingtypes.NewDelegation(genAccs[0].GetAddress(), val.Address.Bytes(), sdk.OneDec()))

	}
	// set validators and delegations
	stakingGenesis := stakingtypes.NewGenesisState(stakingtypes.DefaultParams(), validators, delegations)
	genesisState[stakingtypes.ModuleName] = cdc.MustMarshalJSON(stakingGenesis)

	totalSupply := sdk.NewCoins()
	for _, b := range balances {
		// add genesis acc tokens to total supply
		totalSupply = totalSupply.Add(b.Coins...)
	}

	for range delegations {
		// add delegated tokens to total supply
		totalSupply = totalSupply.Add(sdk.NewCoin(sdk.DefaultBondDenom, bondAmt))
	}

	// add bonded amount to bonded pool module account
	balances = append(balances, banktypes.Balance{
		Address: authtypes.NewModuleAddress(stakingtypes.BondedPoolName).String(),
		Coins:   sdk.Coins{sdk.NewCoin(sdk.DefaultBondDenom, bondAmt)},
	})

	// update total supply
	bankGenesis := banktypes.NewGenesisState(
		banktypes.DefaultGenesisState().Params,
		balances,
		totalSupply,
		[]banktypes.Metadata{},
		[]banktypes.SendEnabled{},
	)
	genesisState[banktypes.ModuleName] = cdc.MustMarshalJSON(bankGenesis)

	return genesisState
}