package plonky2_verifier

import (
	. "gnark-ed25519/goldilocks"
	"gnark-ed25519/poseidon"
	"gnark-ed25519/utils"

	"github.com/consensys/gnark/frontend"
)

type VerifierChip struct {
	api          frontend.API
	field        frontend.API
	poseidonChip poseidon.PoseidonChip
}

func (c *VerifierChip) GetPublicInputsHash(publicInputs []GoldilocksElement) poseidon.HashOutput {
	return c.poseidonChip.HashNoPad(publicInputs)
}

func (c *VerifierChip) GetChallenges(proofWithPis ProofWithPublicInputs, publicInputsHash Hash, commonData CommonCircuitData) {
	config := commonData.Config
	numChallenges := int(config.NumChallenges)
	challenger := NewChallengerChip(c.api, c.field, c.poseidonChip)

	var circuitDigest Hash
	copy(circuitDigest[:], utils.Uint64ArrayToGoldilocksElementArray(commonData.CircuitDigest.Elements))

	challenger.ObserveHash(circuitDigest)
	challenger.ObserveHash(publicInputsHash)
	challenger.ObserveCap(proofWithPis.Proof.WiresCap)
	plonkBetas := challenger.GetNChallenges(numChallenges)
	plonkGammas := challenger.GetNChallenges(numChallenges)

	challenger.ObserveCap(proofWithPis.Proof.PlonkZsPartialProductsCap)
	plonkAlphas := challenger.GetNChallenges(numChallenges)

	challenger.ObserveCap(proofWithPis.Proof.QuotientPolysCap)
	plonkZeta := challenger.GetNChallenges(numChallenges)

	challenger.ObserveOpenings(proofWithPis.Proof.Openings)
}

func (c *VerifierChip) Verify(proofWithPis ProofWithPublicInputs, verifierData VerifierOnlyCircuitData, commonData CommonCircuitData) {
	publicInputsHash := c.GetPublicInputsHash(proofWithPis.PublicInputs)
	challenges := c.GetChallenges(proofWithPis, publicInputsHash, commonData)
}