package supplementimpact

import "time"

const (
	StatusPending       = "pending"
	StatusDecided       = "decided"
	StatusRunning       = "running"
	StatusDone          = "done"
	StatusPartiallyDone = "partially_done"
	StatusExpired       = "expired"
	StatusCancelled     = "cancelled"

	OutcomeApplied          = "applied"
	OutcomeProposalPending  = "proposal_pending"
	OutcomeProposalRejected = "proposal_rejected"
	OutcomeSkippedBusy      = "skipped_busy"
	OutcomeSkippedLocked    = "skipped_locked"
	OutcomeFailed           = "failed"

	BatchTTL = 24 * time.Hour
)

// Batch is one supplement → impact analysis confirmation unit.
type Batch struct {
	BatchID         string    `json:"batch_id"`
	ProjectID       int64     `json:"project_id"`
	SessionID       string    `json:"session_id"`
	InitiatorUserID int64     `json:"initiator_user_id"`
	SourceKind      string    `json:"source_kind"`
	SourceSummary   string    `json:"source_summary"`
	CoverageStatus  string    `json:"coverage_status"`
	Status          string    `json:"status"`
	DecisionNonce   string    `json:"decision_nonce"`
	DecisionDigest  string    `json:"decision_digest"`
	Revision        int64     `json:"revision"`
	ExpiresAt       time.Time `json:"expires_at"`
	Items           []Item    `json:"items,omitempty"`
}

// Item is one affected document inside a batch.
type Item struct {
	ID                    int64  `json:"id"`
	BatchID               string `json:"batch_id"`
	DocID                 string `json:"doc_id"`
	Title                 string `json:"title"`
	ItemKey               string `json:"item_key"`
	ImpactType            string `json:"impact_type"`
	Depth                 int    `json:"depth"`
	Reason                string `json:"reason"`
	AuthorClaimedSnapshot bool   `json:"author_claimed_snapshot"`
	AuthorIDSnapshot      int64  `json:"author_id_snapshot"`
	BusySnapshot          bool   `json:"busy_snapshot"`
	LockedSnapshot        bool   `json:"locked_snapshot"`
	ReviewerIDSnapshot    int64  `json:"reviewer_id_snapshot,omitempty"`
	ApproverIDSnapshot    int64  `json:"approver_id_snapshot,omitempty"`
	CurrentStateSnapshot  string `json:"current_state_snapshot,omitempty"`
	ChangeSummary         string `json:"change_summary"`
	Selected              bool   `json:"selected"`
	Outcome               string `json:"outcome"`
	ProposalID            string `json:"proposal_id"`
	RunID                 string `json:"run_id"`
}

// DecisionCommand is the confirm/cancel envelope (nonce+digest+revision CAS).
type DecisionCommand struct {
	BatchID          string
	ActorUserID      int64
	Kind             string // confirm | cancel
	SelectedDocIDs   []string
	DecisionNonce    string
	DecisionDigest   string
	ExpectedRevision int64
}