package keeper_test

import (
	"fmt"

	"github.com/tharsis/ethermint/tests"

	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
	sdk "github.com/cosmos/cosmos-sdk/types"
	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
)

func (suite *KeeperTestSuite) TestGetCoinbaseAddress() {
	valOpAddr := tests.GenerateAddress()

	testCases := []struct {
		msg      string
		malleate func()
		expPass  bool
	}{
		{
			"validator not found",
			func() {
				header := suite.ctx.BlockHeader()
				header.ProposerAddress = []byte{}
				suite.ctx = suite.ctx.WithBlockHeader(header)
				suite.app.EvmKeeper.WithContext(suite.ctx)
			},
			false,
		},
		{
			"success",
			func() {
				valConsAddr, privkey := tests.NewAddrKey()

				pkAny, err := codectypes.NewAnyWithValue(privkey.PubKey())
				suite.Require().NoError(err)

				validator := stakingtypes.Validator{
					OperatorAddress: sdk.ValAddress(valOpAddr.Bytes()).String(),
					ConsensusPubkey: pkAny,
				}

				suite.app.StakingKeeper.SetValidator(suite.ctx, validator)
				err = suite.app.StakingKeeper.SetValidatorByConsAddr(suite.ctx, validator)
				suite.Require().NoError(err)

				header := suite.ctx.BlockHeader()
				header.ProposerAddress = valConsAddr.Bytes()
				suite.ctx = suite.ctx.WithBlockHeader(header)

				validator, found := suite.app.StakingKeeper.GetValidatorByConsAddr(suite.ctx, valConsAddr.Bytes())
				suite.Require().True(found)

				suite.app.EvmKeeper.WithContext(suite.ctx)
				suite.Require().NotEmpty(suite.ctx.BlockHeader().ProposerAddress)
			},
			true,
		},
	}

	for _, tc := range testCases {
		suite.Run(fmt.Sprintf("Case %s", tc.msg), func() {
			suite.SetupTest() // reset

			tc.malleate()

			coinbase, err := suite.app.EvmKeeper.GetCoinbaseAddress()
			if tc.expPass {
				suite.Require().NoError(err)
				suite.Require().Equal(valOpAddr, coinbase)
			} else {
				suite.Require().Error(err)
			}
		})
	}

}