package models

import (
	"crypto/sha256"
	"encoding/hex"

	"git.cin.su/m/Assistant/contracts/capability"
	commitcontract "git.cin.su/m/Assistant/contracts/commit"
	"git.cin.su/m/Assistant/contracts/identity"
	"git.cin.su/m/Assistant/contracts/work"
	"git.cin.su/m/Assistant/platform/ids"
)

// DeterministicRequest is already target-bound. The adapter performs no text
// routing and emits a candidate only; Commit remains the execution boundary.
type DeterministicRequest struct {
	ActorID      identity.ActorID
	CapabilityID capability.CapabilityID
	Target       work.TaskTarget
	Operation    commitcontract.ExternalOperation
}

type Candidate struct {
	Proposal commitcontract.ActionProposal
	Seed     string
}

func Propose(request DeterministicRequest) Candidate {
	seed := string(request.ActorID) + "|" + string(request.CapabilityID) + "|" + string(request.Target.TaskID) + "|" + string(request.Target.GoalID) + "|" + string(request.Target.ScopeID) + "|" + string(request.Operation)
	digest := sha256.Sum256([]byte(seed))
	intent := commitcontract.ActionIntentID(ids.ID(hex.EncodeToString(digest[:16])))
	return Candidate{Seed: hex.EncodeToString(digest[:]), Proposal: commitcontract.ActionProposal{IntentID: intent, ActorID: request.ActorID, CapabilityID: request.CapabilityID, Target: request.Target, Operation: request.Operation, State: commitcontract.ActionProposed}}
}