package cli_test

import (
	"bytes"
	"context"
	"fmt"
	"io"
	"testing"

	"github.com/stretchr/testify/suite"
	abci "github.com/tendermint/tendermint/abci/types"
	tmlibs "github.com/tendermint/tendermint/libs/bytes"
	tmcli "github.com/tendermint/tendermint/libs/cli"
	rpcclient "github.com/tendermint/tendermint/rpc/client"
	rpcclientmock "github.com/tendermint/tendermint/rpc/client/mock"
	coretypes "github.com/tendermint/tendermint/rpc/core/types"
	tmtypes "github.com/tendermint/tendermint/types"

	"github.com/cosmos/cosmos-sdk/client"
	"github.com/cosmos/cosmos-sdk/client/flags"
	"github.com/cosmos/cosmos-sdk/crypto/hd"
	"github.com/cosmos/cosmos-sdk/crypto/keyring"
	"github.com/cosmos/cosmos-sdk/crypto/types"
	clitestutil "github.com/cosmos/cosmos-sdk/testutil/cli"
	sdk "github.com/cosmos/cosmos-sdk/types"
	testutilmod "github.com/cosmos/cosmos-sdk/types/module/testutil"
	"github.com/cosmos/cosmos-sdk/x/nft/module"
	"github.com/cosmos/cosmos-sdk/x/slashing/client/cli"
)

type CLITestSuite struct {
	suite.Suite

	kr        keyring.Keyring
	baseCtx   client.Context
	clientCtx client.Context
	encCfg    testutilmod.TestEncodingConfig

	pub  types.PubKey
	addr sdk.AccAddress
}

var _ client.TendermintRPC = (*mockTendermintRPC)(nil)

type mockTendermintRPC struct {
	rpcclientmock.Client

	responseQuery abci.ResponseQuery
}

func newMockTendermintRPC(respQuery abci.ResponseQuery) mockTendermintRPC {
	return mockTendermintRPC{responseQuery: respQuery}
}

func (m mockTendermintRPC) BroadcastTxSync(context.Context, tmtypes.Tx) (*coretypes.ResultBroadcastTx, error) {
	return &coretypes.ResultBroadcastTx{Code: 0}, nil
}

func (m mockTendermintRPC) ABCIQueryWithOptions(
	_ context.Context,
	_ string, _ tmlibs.HexBytes,
	_ rpcclient.ABCIQueryOptions,
) (*coretypes.ResultABCIQuery, error) {
	return &coretypes.ResultABCIQuery{Response: m.responseQuery}, nil
}

func TestCLITestSuite(t *testing.T) {
	suite.Run(t, new(CLITestSuite))
}

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

	s.encCfg = testutilmod.MakeTestEncodingConfig(module.AppModuleBasic{})
	s.kr = keyring.NewInMemory(s.encCfg.Codec)
	s.baseCtx = client.Context{}.
		WithKeyring(s.kr).
		WithTxConfig(s.encCfg.TxConfig).
		WithCodec(s.encCfg.Codec).
		WithClient(mockTendermintRPC{Client: rpcclientmock.Client{}}).
		WithAccountRetriever(client.MockAccountRetriever{}).
		WithOutput(io.Discard).
		WithChainID("test-chain")

	var outBuf bytes.Buffer
	ctxGen := func() client.Context {
		bz, _ := s.encCfg.Codec.Marshal(&sdk.TxResponse{})
		c := newMockTendermintRPC(abci.ResponseQuery{
			Value: bz,
		})

		return s.baseCtx.WithClient(c)
	}
	s.clientCtx = ctxGen().WithOutput(&outBuf)

	k, _, err := s.clientCtx.Keyring.NewMnemonic("NewValidator", keyring.English, sdk.FullFundraiserPath, keyring.DefaultBIP39Passphrase, hd.Secp256k1)
	s.Require().NoError(err)

	pub, err := k.GetPubKey()
	s.Require().NoError(err)

	s.pub = pub
	s.addr = sdk.AccAddress(pub.Address())
}

func (s *CLITestSuite) TestGetCmdQuerySigningInfo() {
	pubKeyBz, err := s.encCfg.Codec.MarshalInterfaceJSON(s.pub)
	s.Require().NoError(err)
	pubKeyStr := string(pubKeyBz)

	testCases := []struct {
		name      string
		args      []string
		expectErr bool
	}{
		{"invalid address", []string{"foo"}, true},
		{
			"valid address (json output)",
			[]string{
				pubKeyStr,
				fmt.Sprintf("--%s=json", tmcli.OutputFlag),
				fmt.Sprintf("--%s=1", flags.FlagHeight),
			},
			false,
		},
		{
			"valid address (text output)",
			[]string{
				pubKeyStr,
				fmt.Sprintf("--%s=text", tmcli.OutputFlag),
				fmt.Sprintf("--%s=1", flags.FlagHeight),
			},
			false,
		},
	}

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

		s.Run(tc.name, func() {
			cmd := cli.GetCmdQuerySigningInfo()
			clientCtx := s.clientCtx

			_, err := clitestutil.ExecTestCLICmd(clientCtx, cmd, tc.args)
			if tc.expectErr {
				s.Require().Error(err)
			} else {
				s.Require().NoError(err)
			}
		})
	}
}

func (s *CLITestSuite) TestGetCmdQueryParams() {
	testCases := []struct {
		name string
		args []string
	}{
		{
			"json output",
			[]string{fmt.Sprintf("--%s=json", tmcli.OutputFlag)},
		},
		{
			"text output",
			[]string{fmt.Sprintf("--%s=text", tmcli.OutputFlag)},
		},
	}

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

		s.Run(tc.name, func() {
			cmd := cli.GetCmdQueryParams()
			clientCtx := s.clientCtx

			_, err := clitestutil.ExecTestCLICmd(clientCtx, cmd, tc.args)
			s.Require().NoError(err)
		})
	}
}