package app

import (
	"math/rand"
	"time"

	cmproto "github.com/cometbft/cometbft/proto/tendermint/types"
	cmtypes "github.com/cometbft/cometbft/types"
	bankkeeper "github.com/cosmos/cosmos-sdk/x/bank/keeper"
	minttypes "github.com/cosmos/cosmos-sdk/x/mint/types"

	"github.com/cosmos/cosmos-sdk/client"
	cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
	simapp "github.com/cosmos/cosmos-sdk/testutil/sims"
	sdk "github.com/cosmos/cosmos-sdk/types"
)

// DefaultConsensusParams defines the default Comet consensus params used in
// ArchwayApp testing.
var DefaultConsensusParams = &cmproto.ConsensusParams{
	Block: &cmproto.BlockParams{
		MaxBytes: 8000000,
		MaxGas:   1234000000,
	},
	Evidence: &cmproto.EvidenceParams{
		MaxAgeNumBlocks: 302400,
		MaxAgeDuration:  504 * time.Hour, // 3 weeks is the max duration
		MaxBytes:        10000,
	},
	Validator: &cmproto.ValidatorParams{
		PubKeyTypes: []string{
			cmtypes.ABCIPubKeyTypeEd25519,
		},
	},
}

// func setup(withGenesis bool, invCheckPeriod uint, opts ...wasmkeeper.Option) (*ArchwayApp, GenesisState) {
// 	db := dbm.NewMemDB()
// 	app := NewArchwayApp(log.NewNopLogger(), db, nil, true, map[int64]bool{}, DefaultNodeHome, invCheckPeriod, MakeEncodingConfig(), EmptyBaseAppOptions{}, opts)
// 	if withGenesis {
// 		return app, NewDefaultGenesisState(app.AppCodec())
// 	}
// 	return app, GenesisState{}
// }

// // // Setup initializes a new ArchwayApp. A Nop logger is set in ArchwayApp.
// // func Setup(isCheckTx bool) *ArchwayApp {
// // 	app, genesisState := setup(!isCheckTx, 5)
// // 	if !isCheckTx {
// // 		// init chain must be called to stop deliverState from being nil
// // 		stateBytes, err := json.MarshalIndent(genesisState, "", " ")
// // 		if err != nil {
// // 			panic(err)
// // 		}

// // 		// Initialize the chain
// // 		app.InitChain(
// // 			&abci.RequestInitChain{
// // 				Validators:      []abci.ValidatorUpdate{},
// // 				ConsensusParams: DefaultConsensusParams,
// // 				AppStateBytes:   stateBytes,
// // 			},
// // 		)
// // 	}

// // 	return app
// // }

// // // SetupWithGenesisValSet initializes a new ArchwayApp with a validator set and genesis accounts
// // // that also act as delegators. For simplicity, each validator is bonded with a delegation
// // // of one consensus engine unit (10^6) in the default token of the ArchwayApp from first genesis
// // // account. A Nop logger is set in ArchwayApp.
// // func SetupWithGenesisValSet(t *testing.T, valSet *tmtypes.ValidatorSet, genAccs []authtypes.GenesisAccount, opts []wasmkeeper.Option, balances ...banktypes.Balance) *ArchwayApp {
// // 	app, genesisState := setup(true, 5, opts...)
// // 	// set genesis accounts
// // 	authGenesis := authtypes.NewGenesisState(authtypes.DefaultParams(), genAccs)
// // 	genesisState[authtypes.ModuleName] = app.appCodec.MustMarshalJSON(authGenesis)

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

// // 	bondAmt := math.NewInt(1000000)

// // 	for _, val := range valSet.Validators {
// // 		pk, err := cryptocodec.FromTmPubKeyInterface(val.PubKey)
// // 		require.NoError(t, err)
// // 		pkAny, err := codectypes.NewAnyWithValue(pk)
// // 		require.NoError(t, err)
// // 		validator := stakingtypes.Validator{
// // 			OperatorAddress:   sdk.ValAddress(val.Address).String(),
// // 			ConsensusPubkey:   pkAny,
// // 			Jailed:            false,
// // 			Status:            stakingtypes.Bonded,
// // 			Tokens:            bondAmt,
// // 			DelegatorShares:   math.LegacyOneDec(),
// // 			Description:       stakingtypes.Description{},
// // 			UnbondingHeight:   int64(0),
// // 			UnbondingTime:     time.Unix(0, 0).UTC(),
// // 			Commission:        stakingtypes.NewCommission(math.LegacyZeroDec(), math.LegacyZeroDec(), math.LegacyZeroDec()),
// // 			MinSelfDelegation: math.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] = app.appCodec.MustMarshalJSON(stakingGenesis)

// // 	totalSupply := sdk.NewCoins()
// // 	for _, b := range balances {
// // 		// add genesis acc tokens and delegated tokens to total supply
// // 		totalSupply = totalSupply.Add(b.Coins.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] = app.appCodec.MustMarshalJSON(bankGenesis)

// // 	stateBytes, err := json.MarshalIndent(genesisState, "", " ")
// // 	require.NoError(t, err)

// // 	// init chain will set the validator set and initialize the genesis accounts
// // 	app.InitChain(
// // 		abci.RequestInitChain{
// // 			Validators:      []abci.ValidatorUpdate{},
// // 			ConsensusParams: DefaultConsensusParams,
// // 			AppStateBytes:   stateBytes,
// // 		},
// // 	)

// // 	// commit genesis changes
// // 	app.Commit()
// // 	app.BeginBlock(abci.RequestBeginBlock{Header: tmproto.Header{
// // 		Height:             app.LastBlockHeight() + 1,
// // 		AppHash:            app.LastCommitID().Hash,
// // 		ValidatorsHash:     valSet.Hash(),
// // 		NextValidatorsHash: valSet.Hash(),
// // 	}})

// // 	return app
// // }

// // // SetupWithGenesisAccounts initializes a new ArchwayApp with the provided genesis
// // // accounts and possible balances.
// // func SetupWithGenesisAccounts(genAccs []authtypes.GenesisAccount, balances ...banktypes.Balance) *ArchwayApp {
// // 	app, genesisState := setup(true, 0)
// // 	authGenesis := authtypes.NewGenesisState(authtypes.DefaultParams(), genAccs)
// // 	genesisState[authtypes.ModuleName] = app.appCodec.MustMarshalJSON(authGenesis)

// // 	totalSupply := sdk.NewCoins()
// // 	for _, b := range balances {
// // 		totalSupply = totalSupply.Add(b.Coins...)
// // 	}

// // 	bankGenesis := banktypes.NewGenesisState(banktypes.DefaultGenesisState().Params, balances, totalSupply, []banktypes.Metadata{}, []banktypes.SendEnabled{})
// // 	genesisState[banktypes.ModuleName] = app.appCodec.MustMarshalJSON(bankGenesis)

// // 	stateBytes, err := json.MarshalIndent(genesisState, "", " ")
// // 	if err != nil {
// // 		panic(err)
// // 	}

// // 	app.InitChain(
// // 		abci.RequestInitChain{
// // 			Validators:      []abci.ValidatorUpdate{},
// // 			ConsensusParams: DefaultConsensusParams,
// // 			AppStateBytes:   stateBytes,
// // 		},
// // 	)

// // 	app.Commit()
// // 	app.BeginBlock(abci.RequestBeginBlock{Header: tmproto.Header{Height: app.LastBlockHeight() + 1}})

// // 	return app
// // }

// type GenerateAccountStrategy func(int) []sdk.AccAddress

// // createRandomAccounts is a strategy used by addTestAddrs() in order to generated addresses in random order.
// func createRandomAccounts(accNum int) []sdk.AccAddress {
// 	testAddrs := make([]sdk.AccAddress, accNum)
// 	for i := 0; i < accNum; i++ {
// 		pk := ed25519.GenPrivKey().PubKey()
// 		testAddrs[i] = sdk.AccAddress(pk.Address())
// 	}

// 	return testAddrs
// }

// // createIncrementalAccounts is a strategy used by addTestAddrs() in order to generated addresses in ascending order.
// func createIncrementalAccounts(accNum int) []sdk.AccAddress {
// 	addresses := make([]sdk.AccAddress, 0, accNum)
// 	var buffer bytes.Buffer

// 	// start at 100 so we can make up to 999 test addresses with valid test addresses
// 	for i := 100; i < (accNum + 100); i++ {
// 		numString := strconv.Itoa(i)
// 		buffer.WriteString("A58856F0FD53BF058B4909A21AEC019107BA6") // base address string

// 		buffer.WriteString(numString) // adding on final two digits to make addresses unique
// 		res, err := sdk.AccAddressFromHexUnsafe(buffer.String())
// 		if err != nil {
// 			panic(err)
// 		}
// 		bech := res.String()
// 		addr, err := TestAddr(buffer.String(), bech)
// 		if err != nil {
// 			panic(err)
// 		}

// 		addresses = append(addresses, addr)
// 		buffer.Reset()
// 	}

// 	return addresses
// }

// // AddTestAddrsFromPubKeys adds the addresses into the ArchwayApp providing only the public keys.
// func AddTestAddrsFromPubKeys(app *ArchwayApp, ctx sdk.Context, pubKeys []cryptotypes.PubKey, accAmt math.Int) {
// 	initCoins := sdk.NewCoins(sdk.NewCoin(app.Keepers.StakingKeeper.BondDenom(ctx), accAmt))

// 	for _, pk := range pubKeys {
// 		initAccountWithCoins(app, ctx, sdk.AccAddress(pk.Address()), initCoins)
// 	}
// }

// // AddTestAddrs constructs and returns accNum amount of accounts with an
// // initial balance of accAmt in random order
// func AddTestAddrs(app *ArchwayApp, ctx sdk.Context, accNum int, accAmt math.Int) []sdk.AccAddress {
// 	return addTestAddrs(app, ctx, accNum, accAmt, createRandomAccounts)
// }

// // AddTestAddrs constructs and returns accNum amount of accounts with an
// // initial balance of accAmt in random order
// func AddTestAddrsIncremental(app *ArchwayApp, ctx sdk.Context, accNum int, accAmt math.Int) []sdk.AccAddress {
// 	return addTestAddrs(app, ctx, accNum, accAmt, createIncrementalAccounts)
// }

// func addTestAddrs(app *ArchwayApp, ctx sdk.Context, accNum int, accAmt math.Int, strategy GenerateAccountStrategy) []sdk.AccAddress {
// 	testAddrs := strategy(accNum)

// 	initCoins := sdk.NewCoins(sdk.NewCoin(app.Keepers.StakingKeeper.BondDenom(ctx), accAmt))

// 	// fill all the addresses with some coins, set the loose pool tokens simultaneously
// 	for _, addr := range testAddrs {
// 		initAccountWithCoins(app, ctx, addr, initCoins)
// 	}

// 	return testAddrs
// }

// func initAccountWithCoins(app *ArchwayApp, ctx sdk.Context, addr sdk.AccAddress, coins sdk.Coins) {
// 	err := app.Keepers.BankKeeper.MintCoins(ctx, minttypes.ModuleName, coins)
// 	if err != nil {
// 		panic(err)
// 	}

// 	err = app.Keepers.BankKeeper.SendCoinsFromModuleToAccount(ctx, minttypes.ModuleName, addr, coins)
// 	if err != nil {
// 		panic(err)
// 	}
// }

// // ConvertAddrsToValAddrs converts the provided addresses to ValAddress.
// func ConvertAddrsToValAddrs(addrs []sdk.AccAddress) []sdk.ValAddress {
// 	valAddrs := make([]sdk.ValAddress, len(addrs))

// 	for i, addr := range addrs {
// 		valAddrs[i] = sdk.ValAddress(addr)
// 	}

// 	return valAddrs
// }

// func TestAddr(addr, bech string) (sdk.AccAddress, error) {
// 	res, err := sdk.AccAddressFromHexUnsafe(addr)
// 	if err != nil {
// 		return nil, err
// 	}
// 	bechexpected := res.String()
// 	if bech != bechexpected {
// 		return nil, fmt.Errorf("bech encoding doesn't match reference")
// 	}

// 	bechres, err := sdk.AccAddressFromBech32(bech)
// 	if err != nil {
// 		return nil, err
// 	}
// 	if !bytes.Equal(bechres, res) {
// 		return nil, err
// 	}

// 	return res, nil
// }

// // CheckBalance checks the balance of an account.
// func CheckBalance(t *testing.T, app *ArchwayApp, addr sdk.AccAddress, balances sdk.Coins) {
// 	ctxCheck := app.BaseApp.NewContext(true, tmproto.Header{})
// 	require.True(t, balances.IsEqual(app.Keepers.BankKeeper.GetAllBalances(ctxCheck, addr)))
// }

// const DefaultGas = 1200000

// // SignCheckDeliver checks a generated signed transaction and simulates a
// // block commitment with the given transaction. A test assertion is made using
// // the parameter 'expPass' against the result. A corresponding result is
// // returned.
// func SignCheckDeliver(
// 	t *testing.T, txCfg client.TxConfig, app *bam.BaseApp, header tmproto.Header, msgs []sdk.Msg,
// 	chainID string, accNums, accSeqs []uint64, expSimPass, expPass bool, priv ...cryptotypes.PrivKey,
// ) (sdk.GasInfo, *sdk.Result, error) {
// 	tx, err := GenTx(
// 		txCfg,
// 		msgs,
// 		sdk.Coins{sdk.NewInt64Coin(sdk.DefaultBondDenom, 0)},
// 		2*DefaultGas,
// 		chainID,
// 		accNums,
// 		accSeqs,
// 		priv...,
// 	)
// 	require.NoError(t, err)
// 	txBytes, err := txCfg.TxEncoder()(tx)
// 	require.Nil(t, err)

// 	// Must simulate now as CheckTx doesn't run Msgs anymore
// 	_, res, err := app.Simulate(txBytes)

// 	if expSimPass {
// 		require.NoError(t, err)
// 		require.NotNil(t, res)
// 	} else {
// 		require.Error(t, err)
// 		require.Nil(t, res)
// 	}

// 	// Simulate a sending a transaction and committing a block
// 	app.BeginBlock(abci.RequestBeginBlock{Header: header})
// 	gInfo, res, err := app.SimDeliver(txCfg.TxEncoder(), tx)

// 	if expPass {
// 		require.NoError(t, err)
// 		require.NotNil(t, res)
// 	} else {
// 		require.Error(t, err)
// 		require.Nil(t, res)
// 	}

// 	app.EndBlock(abci.RequestEndBlock{})
// 	app.Commit()

// 	return gInfo, res, err
// }

// // SignAndDeliver signs and delivers a transaction. No simulation occurs as the
// // ibc testing package causes checkState and deliverState to diverge in block time.
// func SignAndDeliver(
// 	t *testing.T, txCfg client.TxConfig, app *bam.BaseApp, header tmproto.Header, msgs []sdk.Msg,
// 	chainID string, accNums, accSeqs []uint64, expSimPass, expPass bool, priv ...cryptotypes.PrivKey,
// ) (sdk.GasInfo, *sdk.Result, error) {
// 	tx, err := GenTx(
// 		txCfg,
// 		msgs,
// 		sdk.Coins{sdk.NewInt64Coin(sdk.DefaultBondDenom, 0)},
// 		2*DefaultGas,
// 		chainID,
// 		accNums,
// 		accSeqs,
// 		priv...,
// 	)
// 	require.NoError(t, err)

// 	// Simulate a sending a transaction and committing a block
// 	app.BeginBlock(abci.RequestBeginBlock{Header: header})
// 	gInfo, res, err := app.SimDeliver(txCfg.TxEncoder(), tx)

// 	if expPass {
// 		require.NoError(t, err)
// 		require.NotNil(t, res)
// 	} else {
// 		require.Error(t, err)
// 		require.Nil(t, res)
// 	}

// 	app.EndBlock(abci.RequestEndBlock{})
// 	app.Commit()

// 	return gInfo, res, err
// }

// // GenSequenceOfTxs generates a set of signed transactions of messages, such
// // that they differ only by having the sequence numbers incremented between
// // every transaction.
// func GenSequenceOfTxs(txGen client.TxConfig, msgs []sdk.Msg, accNums, initSeqNums []uint64, numToGenerate int, priv ...cryptotypes.PrivKey) ([]sdk.Tx, error) {
// 	txs := make([]sdk.Tx, numToGenerate)
// 	var err error
// 	for i := 0; i < numToGenerate; i++ {
// 		txs[i], err = GenTx(
// 			txGen,
// 			msgs,
// 			sdk.Coins{sdk.NewInt64Coin(sdk.DefaultBondDenom, 0)},
// 			simapp.DefaultGenTxGas,
// 			"",
// 			accNums,
// 			initSeqNums,
// 			priv...,
// 		)
// 		if err != nil {
// 			break
// 		}
// 		incrementAllSequenceNumbers(initSeqNums)
// 	}

// 	return txs, err
// }

// func incrementAllSequenceNumbers(initSeqNums []uint64) {
// 	for i := 0; i < len(initSeqNums); i++ {
// 		initSeqNums[i]++
// 	}
// }

// // CreateTestPubKeys returns a total of numPubKeys public keys in ascending order.
// func CreateTestPubKeys(numPubKeys int) []cryptotypes.PubKey {
// 	publicKeys := make([]cryptotypes.PubKey, 0, numPubKeys)
// 	var buffer bytes.Buffer

// 	// start at 10 to avoid changing 1 to 01, 2 to 02, etc
// 	for i := 100; i < (numPubKeys + 100); i++ {
// 		numString := strconv.Itoa(i)
// 		buffer.WriteString("0B485CFC0EECC619440448436F8FC9DF40566F2369E72400281454CB552AF") // base pubkey string
// 		buffer.WriteString(numString)                                                       // adding on final two digits to make pubkeys unique
// 		publicKeys = append(publicKeys, NewPubKeyFromHex(buffer.String()))
// 		buffer.Reset()
// 	}

// 	return publicKeys
// }

// // NewPubKeyFromHex returns a PubKey from a hex string.
// func NewPubKeyFromHex(pk string) (res cryptotypes.PubKey) {
// 	pkBytes, err := hex.DecodeString(pk)
// 	if err != nil {
// 		panic(err)
// 	}
// 	if len(pkBytes) != ed25519.PubKeySize {
// 		panic(errorsmod.Wrap(errors.ErrInvalidPubKey, "invalid pubkey size"))
// 	}
// 	return &ed25519.PubKey{Key: pkBytes}
// }

// EmptyBaseAppOptions is a stub implementing AppOptions
type EmptyBaseAppOptions struct{}

// Get implements AppOptions
func (ao EmptyBaseAppOptions) Get(_ string) interface{} {
	return nil
}

// FundAccount is a utility function that funds an account by minting and
// sending the coins to the address. This should be used for testing purposes
// only!
//
// Instead of using the mint module account, which has the
// permission of minting, create a "faucet" account. (@fdymylja)
func FundAccount(bankKeeper bankkeeper.Keeper, ctx sdk.Context, addr sdk.AccAddress, amounts sdk.Coins) error {
	if err := bankKeeper.MintCoins(ctx, minttypes.ModuleName, amounts); err != nil {
		return err
	}

	return bankKeeper.SendCoinsFromModuleToAccount(ctx, minttypes.ModuleName, addr, amounts)
}

// FundModuleAccount is a utility function that funds a module account by
// minting and sending the coins to the address. This should be used for testing
// purposes only!
//
// Instead of using the mint module account, which has the
// permission of minting, create a "faucet" account. (@fdymylja)
func FundModuleAccount(bankKeeper bankkeeper.Keeper, ctx sdk.Context, recipientMod string, amounts sdk.Coins) error {
	if err := bankKeeper.MintCoins(ctx, minttypes.ModuleName, amounts); err != nil {
		return err
	}

	return bankKeeper.SendCoinsFromModuleToModule(ctx, minttypes.ModuleName, recipientMod, amounts)
}

func GenTx(gen client.TxConfig, msgs []sdk.Msg, feeAmt sdk.Coins, gas uint64, chainID string, accNums, accSeqs []uint64, priv ...cryptotypes.PrivKey) (sdk.Tx, error) {
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	return simapp.GenSignedMockTx(r, gen, msgs, feeAmt, gas, chainID, accNums, accSeqs, priv...)
}
