package cli_test

import (
	"bytes"
	"encoding/base64"
	"fmt"
	"io"
	"testing"

	"cosmossdk.io/math"
	"github.com/cosmos/gogoproto/proto"
	"github.com/stretchr/testify/suite"

	abci "github.com/cometbft/cometbft/abci/types"
	rpcclientmock "github.com/cometbft/cometbft/rpc/client/mock"

	"github.com/cosmos/cosmos-sdk/client"
	"github.com/cosmos/cosmos-sdk/client/flags"
	"github.com/cosmos/cosmos-sdk/crypto/keyring"
	"github.com/cosmos/cosmos-sdk/testutil"
	clitestutil "github.com/cosmos/cosmos-sdk/testutil/cli"
	sdk "github.com/cosmos/cosmos-sdk/types"
	testutilmod "github.com/cosmos/cosmos-sdk/types/module/testutil"
	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"

	"github.com/atomone-hub/atomone/x/gov"
	"github.com/atomone-hub/atomone/x/gov/client/cli"
	govclitestutil "github.com/atomone-hub/atomone/x/gov/client/testutil"
	"github.com/atomone-hub/atomone/x/gov/types"
	v1 "github.com/atomone-hub/atomone/x/gov/types/v1"
	"github.com/atomone-hub/atomone/x/gov/types/v1beta1"
)

type CLITestSuite struct {
	suite.Suite

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

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

func (s *CLITestSuite) SetupSuite() {
	s.encCfg = testutilmod.MakeTestEncodingConfig(gov.AppModuleBasic{})
	s.kr = keyring.NewInMemory(s.encCfg.Codec)
	s.baseCtx = client.Context{}.
		WithKeyring(s.kr).
		WithTxConfig(s.encCfg.TxConfig).
		WithCodec(s.encCfg.Codec).
		WithClient(clitestutil.MockCometRPC{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 := clitestutil.NewMockCometRPC(abci.ResponseQuery{
			Value: bz,
		})
		return s.baseCtx.WithClient(c)
	}
	s.clientCtx = ctxGen().WithOutput(&outBuf)

	val := testutil.CreateKeyringAccounts(s.T(), s.kr, 1)

	// create a proposal with deposit
	_, err := govclitestutil.MsgSubmitLegacyProposal(s.clientCtx, val[0].Address.String(),
		"Text Proposal 1", "Where is the title!?", v1beta1.ProposalTypeText,
		fmt.Sprintf("--%s=%s", cli.FlagDeposit, sdk.NewCoin("stake", v1.DefaultMinDepositTokens).String()))
	s.Require().NoError(err)

	// vote for proposal
	_, err = govclitestutil.MsgVote(s.clientCtx, val[0].Address.String(), "1", "yes")
	s.Require().NoError(err)

	// create a proposal without deposit
	_, err = govclitestutil.MsgSubmitLegacyProposal(s.clientCtx, val[0].Address.String(),
		"Text Proposal 2", "Where is the title!?", v1beta1.ProposalTypeText)
	s.Require().NoError(err)

	// create a proposal3 with deposit
	_, err = govclitestutil.MsgSubmitLegacyProposal(s.clientCtx, val[0].Address.String(),
		"Text Proposal 3", "Where is the title!?", v1beta1.ProposalTypeText,
		fmt.Sprintf("--%s=%s", cli.FlagDeposit, sdk.NewCoin("stake", v1.DefaultMinDepositTokens).String()))
	s.Require().NoError(err)

	// vote for proposal3 as val
	_, err = govclitestutil.MsgVote(s.clientCtx, val[0].Address.String(), "3", "yes=0.6,no=0.3,abstain=0.1")
	s.Require().NoError(err)
}

func (s *CLITestSuite) TestNewCmdSubmitProposal() {
	val := testutil.CreateKeyringAccounts(s.T(), s.kr, 1)

	// Create a legacy proposal JSON, make sure it doesn't pass this new CLI
	// command.
	invalidProp := `{
		"title": "",
		"description": "Where is the title!?",
		"type": "Text",
		"deposit": "-324foocoin"
	}`
	invalidPropFile := testutil.WriteToNewTempFile(s.T(), invalidProp)
	defer invalidPropFile.Close()

	// Create a valid new proposal JSON.
	propMetadata := []byte{42}
	validProp := fmt.Sprintf(`
	{
		"messages": [
			{
				"@type": "/atomone.gov.v1.MsgExecLegacyContent",
				"authority": "%s",
				"content": {
					"@type": "/atomone.gov.v1beta1.TextProposal",
					"title": "My awesome title",
					"description": "My awesome description"
				}
			}
		],
		"title": "My awesome title",
		"summary": "My awesome description",
		"metadata": "%s",
		"deposit": "%s"
	}`, authtypes.NewModuleAddress(types.ModuleName), base64.StdEncoding.EncodeToString(propMetadata), sdk.NewCoin("stake", math.NewInt(5431)))
	validPropFile := testutil.WriteToNewTempFile(s.T(), validProp)
	defer validPropFile.Close()

	testCases := []struct {
		name      string
		args      []string
		expectErr bool
		respType  proto.Message
	}{
		{
			"invalid proposal",
			[]string{
				invalidPropFile.Name(),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			true, nil,
		},
		{
			"valid proposal",
			[]string{
				validPropFile.Name(),
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			false, &sdk.TxResponse{},
		},
	}

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

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

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

func (s *CLITestSuite) TestNewCmdSubmitLegacyProposal() {
	val := testutil.CreateKeyringAccounts(s.T(), s.kr, 1)

	invalidProp := `{
	  "title": "",
		"description": "Where is the title!?",
		"type": "Text",
	  "deposit": "-324foocoin"
	}`
	invalidPropFile := testutil.WriteToNewTempFile(s.T(), invalidProp)
	defer invalidPropFile.Close()
	validProp := fmt.Sprintf(`{
	  "title": "Text Proposal",
		"description": "Hello, World!",
		"type": "Text",
	  "deposit": "%s"
	}`, sdk.NewCoin("stake", math.NewInt(5431)))
	validPropFile := testutil.WriteToNewTempFile(s.T(), validProp)
	defer validPropFile.Close()

	testCases := []struct {
		name      string
		args      []string
		expectErr bool
		respType  proto.Message
	}{
		{
			"invalid proposal (file)",
			[]string{
				fmt.Sprintf("--%s=%s", cli.FlagProposal, invalidPropFile.Name()), //nolint:staticcheck // we are intentionally using a deprecated flag here.
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			true, nil,
		},
		{
			"invalid proposal",
			[]string{
				fmt.Sprintf("--%s='Where is the title!?'", cli.FlagDescription),        //nolint:staticcheck // we are intentionally using a deprecated flag here.
				fmt.Sprintf("--%s=%s", cli.FlagProposalType, v1beta1.ProposalTypeText), //nolint:staticcheck // we are intentionally using a deprecated flag here.
				fmt.Sprintf("--%s=%s", cli.FlagDeposit, sdk.NewCoin("stake", math.NewInt(5431)).String()),
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			true, nil,
		},
		{
			"valid transaction (file)",
			//nolint:staticcheck // we are intentionally using a deprecated flag here.
			[]string{
				fmt.Sprintf("--%s=%s", cli.FlagProposal, validPropFile.Name()),
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			false, &sdk.TxResponse{},
		},
		{
			"valid transaction",
			[]string{
				fmt.Sprintf("--%s='Text Proposal'", cli.FlagTitle),                     //nolint:staticcheck // we are intentionally using a deprecated flag here.
				fmt.Sprintf("--%s='Where is the title!?'", cli.FlagDescription),        //nolint:staticcheck // we are intentionally using a deprecated flag here.
				fmt.Sprintf("--%s=%s", cli.FlagProposalType, v1beta1.ProposalTypeText), //nolint:staticcheck // we are intentionally using a deprecated flag here.
				fmt.Sprintf("--%s=%s", cli.FlagDeposit, sdk.NewCoin("stake", math.NewInt(5431)).String()),
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			false, &sdk.TxResponse{},
		},
	}

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

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

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

func (s *CLITestSuite) TestNewCmdDeposit() {
	val := testutil.CreateKeyringAccounts(s.T(), s.kr, 1)

	testCases := []struct {
		name      string
		args      []string
		expectErr bool
	}{
		{
			"without proposal id",
			[]string{
				sdk.NewCoin("stake", math.NewInt(10)).String(), // 10stake
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			true,
		},
		{
			"without deposit amount",
			[]string{
				"1",
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			true,
		},
		{
			"deposit on a proposal",
			[]string{
				"10",
				sdk.NewCoin("stake", math.NewInt(10)).String(), // 10stake
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			false,
		},
	}

	for _, tc := range testCases {
		tc := tc
		var resp sdk.TxResponse

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

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

func (s *CLITestSuite) TestNewCmdVote() {
	val := testutil.CreateKeyringAccounts(s.T(), s.kr, 1)

	testCases := []struct {
		name         string
		args         []string
		expectErr    bool
		expectedCode uint32
	}{
		{
			"invalid vote",
			[]string{},
			true, 0,
		},
		{
			"vote for invalid proposal",
			[]string{
				"10",
				"yes",
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--metadata=%s", "AQ=="),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			false, 3,
		},
		{
			"valid vote",
			[]string{
				"1",
				"yes",
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			false, 0,
		},
		{
			"valid vote with metadata",
			[]string{
				"1",
				"yes",
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--metadata=%s", "AQ=="),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			false, 0,
		},
	}

	for _, tc := range testCases {
		tc := tc
		s.Run(tc.name, func() {
			cmd := cli.NewCmdVote()
			var txResp sdk.TxResponse

			out, err := clitestutil.ExecTestCLICmd(s.clientCtx, cmd, tc.args)

			if tc.expectErr {
				s.Require().Error(err)
			} else {
				s.Require().NoError(err)
				s.Require().NoError(s.clientCtx.Codec.UnmarshalJSON(out.Bytes(), &txResp), out.String())
			}
		})
	}
}

func (s *CLITestSuite) TestNewCmdWeightedVote() {
	val := testutil.CreateKeyringAccounts(s.T(), s.kr, 1)

	testCases := []struct {
		name         string
		args         []string
		expectErr    bool
		expectedCode uint32
	}{
		{
			"invalid vote",
			[]string{},
			true, 0,
		},
		{
			"vote for invalid proposal",
			[]string{
				"10",
				"yes",
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			false, 3,
		},
		{
			"valid vote",
			[]string{
				"1",
				"yes",
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			false, 0,
		},
		{
			"valid vote with metadata",
			[]string{
				"1",
				"yes",
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--metadata=%s", "AQ=="),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			false, 0,
		},
		{
			"invalid valid split vote string",
			[]string{
				"1",
				"yes/0.6,no/0.3,abstain/0.1",
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			true, 0,
		},
		{
			"valid split vote",
			[]string{
				"1",
				"yes=0.6,no=0.3,abstain=0.1",
				fmt.Sprintf("--%s=%s", flags.FlagFrom, val[0].Address.String()),
				fmt.Sprintf("--%s=true", flags.FlagSkipConfirmation),
				fmt.Sprintf("--%s=%s", flags.FlagBroadcastMode, flags.BroadcastSync),
				fmt.Sprintf("--%s=%s", flags.FlagFees, sdk.NewCoins(sdk.NewCoin("stake", math.NewInt(10))).String()),
			},
			false, 0,
		},
	}

	for _, tc := range testCases {
		tc := tc
		s.Run(tc.name, func() {
			cmd := cli.NewCmdWeightedVote()
			var txResp sdk.TxResponse

			out, err := clitestutil.ExecTestCLICmd(s.clientCtx, cmd, tc.args)

			if tc.expectErr {
				s.Require().Error(err)
			} else {
				s.Require().NoError(err)
				s.Require().NoError(s.clientCtx.Codec.UnmarshalJSON(out.Bytes(), &txResp), out.String())
			}
		})
	}
}

func (s *CLITestSuite) TestCmdGenerateConstitutionAmendment() {
	newConstitution := `Modified Constitution`
	newConstitutionFile := testutil.WriteToNewTempFile(s.T(), newConstitution)
	defer newConstitutionFile.Close()

	testCases := []struct {
		name         string
		args         []string
		expCmdOutput string
	}{
		{
			"generate constitution amendment",
			[]string{newConstitutionFile.Name()},
			"{\"authority\":\"cosmos10d07y265gmmuvt4z0w9aw880jnsr700j6zn9kn\",\"amendment\":\"--- src\\n+++ dst\\n@@ -1 +1 @@\\n-\\n+Modified Constitution\\n\"}",
		},
	}

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

		s.Run(tc.name, func() {
			cmd := cli.NewCmdGenerateConstitutionAmendment()
			out, err := clitestutil.ExecTestCLICmd(s.clientCtx, cmd, tc.args)
			s.Require().NoError(err)
			s.Require().Contains(out.String(), tc.expCmdOutput)
		})
	}
}
