feat(relayer): TON Chain Accessor Base (#87)

* feat: TONChainAccessor

* chore: lint

* chore: clean up

* chore: error placeholders

* fix: interface

Author: jadepark-dev

pkg/ccip/cal/chainrw/chain_reader.go

@@ -0,0 +1,120 @@
+package chainaccessor
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"github.com/xssnick/tonutils-go/ton"
+
+	"github.com/smartcontractkit/chainlink-common/pkg/logger"
+	"github.com/smartcontractkit/chainlink-common/pkg/types/ccipocr3"
+	"github.com/smartcontractkit/chainlink-common/pkg/types/query/primitives"
+
+	"github.com/smartcontractkit/chainlink-ton/pkg/logpoller"
+)
+
+type TONAccessor struct {
+	lggr      logger.Logger
+	client    ton.APIClientWrapped
+	logPoller logpoller.LogPoller
+}
+
+var _ ccipocr3.ChainAccessor = (*TONAccessor)(nil)
+
+func NewTONAccessor(
+	lggr logger.Logger,
+	client ton.APIClientWrapped,
+	logPoller logpoller.LogPoller,
+	addrCodec ccipocr3.AddressCodec,
+) (ccipocr3.ChainAccessor, error) {
+	// TODO: validate state of client and logPoller (should be initialized in NewChain)
+	return &TONAccessor{
+		lggr:      lggr,
+		client:    client,
+		logPoller: logPoller,
+	}, nil
+}
+
+// Common Accessor methods
+func (a *TONAccessor) GetContractAddress(contractName string) ([]byte, error) {
+	// TODO(NONEVM-2364) implement me
+	return nil, errors.New("not implemented")
+}
+
+func (a *TONAccessor) GetAllConfigLegacySnapshot(ctx context.Context) (ccipocr3.ChainConfigSnapshot, error) {
+	// TODO(NONEVM-2364) implement me
+	return ccipocr3.ChainConfigSnapshot{}, errors.New("not implemented")
+}
+
+func (a *TONAccessor) GetChainFeeComponents(ctx context.Context) (ccipocr3.ChainFeeComponents, error) {
+	// TODO(NONEVM-2364) implement me
+	return ccipocr3.ChainFeeComponents{}, errors.New("not implemented")
+}
+
+func (a *TONAccessor) Sync(ctx context.Context, contractName string, contractAddress ccipocr3.UnknownAddress) error {
+	// TODO(NONEVM-2364) implement me
+	return errors.New("not implemented")
+}
+
+// TON as source chain methods
+func (a *TONAccessor) MsgsBetweenSeqNums(ctx context.Context, dest ccipocr3.ChainSelector, seqNumRange ccipocr3.SeqNumRange) ([]ccipocr3.Message, error) {
+	// TODO(NONEVM-2364) implement me
+	return nil, errors.New("not implemented")
+}
+
+func (a *TONAccessor) LatestMessageTo(ctx context.Context, dest ccipocr3.ChainSelector) (ccipocr3.SeqNum, error) {
+	// TODO(NONEVM-2364) implement me
+	return 0, errors.New("not implemented")
+}
+
+func (a *TONAccessor) GetExpectedNextSequenceNumber(ctx context.Context, dest ccipocr3.ChainSelector) (ccipocr3.SeqNum, error) {
+	// TODO(NONEVM-2364) implement me
+	return 0, errors.New("not implemented")
+}
+
+func (a *TONAccessor) GetTokenPriceUSD(ctx context.Context, address ccipocr3.UnknownAddress) (ccipocr3.TimestampedUnixBig, error) {
+	// TODO(NONEVM-2364) implement me
+	return ccipocr3.TimestampedUnixBig{}, errors.New("not implemented")
+}
+
+func (a *TONAccessor) GetFeeQuoterDestChainConfig(ctx context.Context, dest ccipocr3.ChainSelector) (ccipocr3.FeeQuoterDestChainConfig, error) {
+	// TODO(NONEVM-2364) implement me
+	return ccipocr3.FeeQuoterDestChainConfig{}, errors.New("not implemented")
+}
+
+// TON as destination chain methods
+func (a *TONAccessor) CommitReportsGTETimestamp(ctx context.Context, ts time.Time, confidence primitives.ConfidenceLevel, limit int) ([]ccipocr3.CommitPluginReportWithMeta, error) {
+	// TODO(NONEVM-2365) implement me
+	return nil, errors.New("not implemented")
+}
+
+func (a *TONAccessor) ExecutedMessages(ctx context.Context, ranges map[ccipocr3.ChainSelector][]ccipocr3.SeqNumRange, confidence primitives.ConfidenceLevel) (map[ccipocr3.ChainSelector][]ccipocr3.SeqNum, error) {
+	// TODO(NONEVM-2365) implement me
+	return nil, errors.New("not implemented")
+}
+
+func (a *TONAccessor) NextSeqNum(ctx context.Context, sources []ccipocr3.ChainSelector) (seqNum map[ccipocr3.ChainSelector]ccipocr3.SeqNum, err error) {
+	// TODO(NONEVM-2365) implement me
+	return nil, errors.New("not implemented")
+}
+
+func (a *TONAccessor) Nonces(ctx context.Context, addresses map[ccipocr3.ChainSelector][]ccipocr3.UnknownEncodedAddress) (map[ccipocr3.ChainSelector]map[string]uint64, error) {
+	// TODO(NONEVM-2365) implement me
+	return nil, errors.New("not implemented")
+}
+
+func (a *TONAccessor) GetChainFeePriceUpdate(ctx context.Context, selectors []ccipocr3.ChainSelector) map[ccipocr3.ChainSelector]ccipocr3.TimestampedBig {
+	// TODO(NONEVM-2365) implement me
+	return nil
+}
+
+func (a *TONAccessor) GetLatestPriceSeqNr(ctx context.Context) (uint64, error) {
+	// TODO(NONEVM-2365) implement me
+	return 0, errors.New("not implemented")
+}
+
+func (a *TONAccessor) GetRMNCurseInfo(ctx context.Context) (ccipocr3.CurseInfo, error) {
+	// TODO(NONEVM-2365) implement me
+	return ccipocr3.CurseInfo{}, errors.New("not implemented")
+}