118 lines
3.5 KiB
Go
118 lines
3.5 KiB
Go
// Copyright 2018 Vulcanize
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package event_triggered
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import (
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"github.com/ethereum/go-ethereum/accounts/abi/bind"
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"github.com/ethereum/go-ethereum/common"
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"github.com/vulcanize/vulcanizedb/examples/constants"
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"github.com/vulcanize/vulcanizedb/examples/generic"
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"github.com/vulcanize/vulcanizedb/examples/generic/helpers"
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/pkg/geth"
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)
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// Converter converts a raw event log into its corresponding entity
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// and can subsequently convert the entity into a model
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type GenericConverterInterface interface {
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ToBurnEntity(watchedEvent core.WatchedEvent) (*BurnEntity, error)
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ToBurnModel(entity *BurnEntity) *BurnModel
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ToMintEntity(watchedEvent core.WatchedEvent) (*MintEntity, error)
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ToMintModel(entity *MintEntity) *MintModel
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}
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type GenericConverter struct {
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config generic.ContractConfig
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}
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func NewGenericConverter(config generic.ContractConfig) (*GenericConverter, error) {
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var err error
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config.ParsedAbi, err = geth.ParseAbi(config.Abi)
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if err != nil {
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return nil, err
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}
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converter := &GenericConverter{
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config: config,
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}
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return converter, nil
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}
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func (c GenericConverter) ToBurnEntity(watchedEvent core.WatchedEvent) (*BurnEntity, error) {
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result := &BurnEntity{}
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contract := bind.NewBoundContract(common.HexToAddress(c.config.Address), c.config.ParsedAbi, nil, nil, nil)
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event := helpers.ConvertToLog(watchedEvent)
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err := contract.UnpackLog(result, constants.BurnEvent.String(), event)
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if err != nil {
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return result, err
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}
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result.TokenName = c.config.Name
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result.TokenAddress = common.HexToAddress(c.config.Address)
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result.Block = watchedEvent.BlockNumber
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result.TxHash = watchedEvent.TxHash
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return result, nil
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}
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func (c GenericConverter) ToBurnModel(entity *BurnEntity) *BurnModel {
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burner := entity.Burner.String()
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tokens := entity.Value.String()
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return &BurnModel{
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TokenName: c.config.Name,
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TokenAddress: c.config.Address,
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Burner: burner,
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Tokens: tokens,
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Block: entity.Block,
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TxHash: entity.TxHash,
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}
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}
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func (c GenericConverter) ToMintEntity(watchedEvent core.WatchedEvent) (*MintEntity, error) {
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result := &MintEntity{}
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contract := bind.NewBoundContract(common.HexToAddress(c.config.Address), c.config.ParsedAbi, nil, nil, nil)
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event := helpers.ConvertToLog(watchedEvent)
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err := contract.UnpackLog(result, constants.MintEvent.String(), event)
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if err != nil {
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return result, err
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}
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result.TokenName = c.config.Name
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result.TokenAddress = common.HexToAddress(c.config.Address)
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result.Block = watchedEvent.BlockNumber
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result.TxHash = watchedEvent.TxHash
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return result, nil
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}
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func (c GenericConverter) ToMintModel(entity *MintEntity) *MintModel {
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mintee := entity.To.String()
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minter := c.config.Owner
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tokens := entity.Amount.String()
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return &MintModel{
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TokenName: c.config.Name,
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TokenAddress: c.config.Address,
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Mintee: mintee,
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Minter: minter,
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Tokens: tokens,
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Block: entity.Block,
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TxHash: entity.TxHash,
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}
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}
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