package arbitrum_prover

import (
	"context"
	"fmt"

	"github.com/base-org/RRC-7755-poc/internal/prover/storage_prover"
	"github.com/ethereum/go-ethereum/core/types"
	"go.uber.org/zap"
)

// ArbitrumStateProofResult contains all the Arbitrum-specific state proof components
type ArbitrumStateProofResult struct {
	EncodedBlockArray         []byte
	AfterState                AssertionState
	PrevAssertionHash         [32]byte
	SequencerBatchAcc         [32]byte
	DstL2StateRootProofParams storage_prover.StorageProofParams
}

// ArbitrumStateProver handles generation of Arbitrum-specific state proofs
type ArbitrumStateProver struct {
	logger *zap.Logger
}

// NewArbitrumStateProver creates a new ArbitrumStateProver instance
func NewArbitrumStateProver(logger *zap.Logger) *ArbitrumStateProver {
	return &ArbitrumStateProver{
		logger: logger,
	}
}

// GenerateArbitrumStateProof generates all Arbitrum-specific state proof components
func (p *ArbitrumStateProver) GenerateArbitrumStateProof(
	ctx context.Context,
	l1Block *types.Block,
) (*ArbitrumStateProofResult, error) {
	if l1Block == nil {
		return nil, fmt.Errorf("l1Block cannot be nil")
	}

	// TODO: Implement the actual proof generation logic
	// For now, return mock values that satisfy the structure
	return &ArbitrumStateProofResult{
		EncodedBlockArray: []byte{},
		AfterState: AssertionState{
			GlobalState: GlobalState{
				Bytes32Vals: [2][32]byte{},
				U64Vals:     [2]uint64{},
			},
			MachineStatus:  FINISHED,
			EndHistoryRoot: [32]byte{},
		},
		PrevAssertionHash:         [32]byte{},
		SequencerBatchAcc:         [32]byte{},
		DstL2StateRootProofParams: storage_prover.StorageProofParams{},
	}, nil
}
