// VulcanizeDB
// Copyright © 2018 Vulcanize

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.

// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package dent_test

import (
	"github.com/ethereum/go-ethereum/common"
	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"

	"github.com/ethereum/go-ethereum/core/types"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/dent"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/test_data"
)

var _ = Describe("Dent Converter", func() {
	var converter dent.DentConverter

	BeforeEach(func() {
		converter = dent.NewDentConverter()
	})

	It("converts an eth log to a db model", func() {
		models, err := converter.ToModels([]types.Log{test_data.DentLog})

		Expect(err).NotTo(HaveOccurred())
		Expect(len(models)).To(Equal(1))
		Expect(models[0].(dent.DentModel)).To(Equal(test_data.DentModel))
	})

	It("returns an error if the expected amount of topics aren't in the log", func() {
		invalidLog := test_data.DentLog
		invalidLog.Topics = []common.Hash{}
		_, err := converter.ToModels([]types.Log{invalidLog})
		Expect(err).To(HaveOccurred())
		Expect(err).To(MatchError("dent log does not contain expected topics"))
	})

	It("returns an error if the log data is empty", func() {
		emptyDataLog := test_data.DentLog
		emptyDataLog.Data = []byte{}
		_, err := converter.ToModels([]types.Log{emptyDataLog})
		Expect(err).To(HaveOccurred())
		Expect(err).To(MatchError("dent log data is empty"))
	})
})