package cli_test

import (
	"fmt"
	"testing"

	"github.com/gogo/protobuf/proto"
	"github.com/stretchr/testify/suite"
	"github.com/tendermint/tendermint/crypto/ed25519"

	"github.com/cosmos/cosmos-sdk/client/flags"
	"github.com/cosmos/cosmos-sdk/crypto/hd"
	"github.com/cosmos/cosmos-sdk/crypto/keyring"
	clitestutil "github.com/cosmos/cosmos-sdk/testutil/cli"
	"github.com/cosmos/cosmos-sdk/testutil/network"
	sdk "github.com/cosmos/cosmos-sdk/types"
	banktestutil "github.com/cosmos/cosmos-sdk/x/bank/client/testutil"
	"github.com/cosmos/cosmos-sdk/x/staking/client/cli"
)

type IntegrationTestSuite struct {
	suite.Suite

	cfg     network.Config
	network *network.Network
}

func (s *IntegrationTestSuite) SetupSuite() {
	s.T().Log("setting up integration test suite")

	cfg := network.DefaultConfig()
	cfg.NumValidators = 1

	s.cfg = cfg
	s.network = network.New(s.T(), cfg)

	_, err := s.network.WaitForHeight(1)
	s.Require().NoError(err)
}

func (s *IntegrationTestSuite) TearDownSuite() {
	s.T().Log("tearing down integration test suite")
	s.network.Cleanup()
}

func (s *IntegrationTestSuite) TestNewCreateValidatorCmd() {
	val := s.network.Validators[0]

	consPrivKey := ed25519.GenPrivKey()
	consPubKey, err := sdk.Bech32ifyPubKey(sdk.Bech32PubKeyTypeConsPub, consPrivKey.PubKey())
	s.Require().NoError(err)

	info, _, err := val.ClientCtx.Keyring.NewMnemonic("NewValidator", keyring.English, sdk.FullFundraiserPath, hd.Secp256k1)
	s.Require().NoError(err)

	newAddr := sdk.AccAddress(info.GetPubKey().Address())

	_, err = banktestutil.MsgSendExec(
		val.ClientCtx,
		val.Address,
		newAddr,
		sdk.NewCoins(sdk.NewCoin(s.cfg.BondDenom, sdk.NewInt(200))), fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
		fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastBlock),
		fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin(s.cfg.BondDenom, sdk.NewInt(10))).String()),
	)
	s.Require().NoError(err)

	testCases := []struct {
		name         string
		args         []string
		expectErr    bool
		respType     proto.Message
		expectedCode uint32
	}{
		{
			"invalid transaction (missing amount)",
			[]string{
				fmt.Sprintf("--%s=AFAF00C4", cli.FlagIdentity),
				fmt.Sprintf("--%s=https://newvalidator.io", cli.FlagWebsite),
				fmt.Sprintf("--%s=contact@newvalidator.io", cli.FlagSecurityContact),
				fmt.Sprintf("--%s='Hey, I am a new validator. Please delegate!'", cli.FlagDetails),
				fmt.Sprintf("--%s=0.5", cli.FlagCommissionRate),
				fmt.Sprintf("--%s=1.0", cli.FlagCommissionMaxRate),
				fmt.Sprintf("--%s=0.1", cli.FlagCommissionMaxChangeRate),
				fmt.Sprintf("--%s=1", cli.FlagMinSelfDelegation),
				fmt.Sprintf("--%s=%s", flags.FlagFrom, newAddr),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastBlock),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin(s.cfg.BondDenom, sdk.NewInt(10))).String()),
			},
			true, nil, 0,
		},
		{
			"invalid transaction (missing pubkey)",
			[]string{
				fmt.Sprintf("--%s=100stake", cli.FlagAmount),
				fmt.Sprintf("--%s=AFAF00C4", cli.FlagIdentity),
				fmt.Sprintf("--%s=https://newvalidator.io", cli.FlagWebsite),
				fmt.Sprintf("--%s=contact@newvalidator.io", cli.FlagSecurityContact),
				fmt.Sprintf("--%s='Hey, I am a new validator. Please delegate!'", cli.FlagDetails),
				fmt.Sprintf("--%s=0.5", cli.FlagCommissionRate),
				fmt.Sprintf("--%s=1.0", cli.FlagCommissionMaxRate),
				fmt.Sprintf("--%s=0.1", cli.FlagCommissionMaxChangeRate),
				fmt.Sprintf("--%s=1", cli.FlagMinSelfDelegation),
				fmt.Sprintf("--%s=%s", flags.FlagFrom, newAddr),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastBlock),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin(s.cfg.BondDenom, sdk.NewInt(10))).String()),
			},
			true, nil, 0,
		},
		{
			"invalid transaction (missing moniker)",
			[]string{
				fmt.Sprintf("--%s=%s", cli.FlagPubKey, consPubKey),
				fmt.Sprintf("--%s=100stake", cli.FlagAmount),
				fmt.Sprintf("--%s=AFAF00C4", cli.FlagIdentity),
				fmt.Sprintf("--%s=https://newvalidator.io", cli.FlagWebsite),
				fmt.Sprintf("--%s=contact@newvalidator.io", cli.FlagSecurityContact),
				fmt.Sprintf("--%s='Hey, I am a new validator. Please delegate!'", cli.FlagDetails),
				fmt.Sprintf("--%s=0.5", cli.FlagCommissionRate),
				fmt.Sprintf("--%s=1.0", cli.FlagCommissionMaxRate),
				fmt.Sprintf("--%s=0.1", cli.FlagCommissionMaxChangeRate),
				fmt.Sprintf("--%s=1", cli.FlagMinSelfDelegation),
				fmt.Sprintf("--%s=%s", flags.FlagFrom, newAddr),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastBlock),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin(s.cfg.BondDenom, sdk.NewInt(10))).String()),
			},
			true, nil, 0,
		},
		{
			"valid transaction",
			[]string{
				fmt.Sprintf("--%s=%s", cli.FlagPubKey, consPubKey),
				fmt.Sprintf("--%s=100stake", cli.FlagAmount),
				fmt.Sprintf("--%s=NewValidator", cli.FlagMoniker),
				fmt.Sprintf("--%s=AFAF00C4", cli.FlagIdentity),
				fmt.Sprintf("--%s=https://newvalidator.io", cli.FlagWebsite),
				fmt.Sprintf("--%s=contact@newvalidator.io", cli.FlagSecurityContact),
				fmt.Sprintf("--%s='Hey, I am a new validator. Please delegate!'", cli.FlagDetails),
				fmt.Sprintf("--%s=0.5", cli.FlagCommissionRate),
				fmt.Sprintf("--%s=1.0", cli.FlagCommissionMaxRate),
				fmt.Sprintf("--%s=0.1", cli.FlagCommissionMaxChangeRate),
				fmt.Sprintf("--%s=1", cli.FlagMinSelfDelegation),
				fmt.Sprintf("--%s=%s", flags.FlagFrom, newAddr),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastBlock),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin(s.cfg.BondDenom, sdk.NewInt(10))).String()),
			},
			false, &sdk.TxResponse{}, 0,
		},
	}

	for _, tc := range testCases {
		tc := tc

		s.Run(tc.name, func() {
			cmd := cli.NewCreateValidatorCmd()
			clientCtx := val.ClientCtx

			out, err := clitestutil.ExecTestCLICmd(clientCtx, cmd, tc.args)
			if tc.expectErr {
				s.Require().Error(err)
			} else {
				s.Require().NoError(err, out.String())
				s.Require().NoError(clientCtx.JSONMarshaler.UnmarshalJSON(out.Bytes(), tc.respType), out.String())

				txResp := tc.respType.(*sdk.TxResponse)
				s.Require().Equal(tc.expectedCode, txResp.Code, out.String())
			}
		})
	}
}

func TestIntegrationTestSuite(t *testing.T) {
	suite.Run(t, new(IntegrationTestSuite))
}