package continuity

import (
	"git.cin.su/m/Assistant/contracts/authority"
	"git.cin.su/m/Assistant/contracts/identity"
	"git.cin.su/m/Assistant/contracts/work"
	"git.cin.su/m/Assistant/platform/ids"
)

type CommitmentID ids.ID
type ProspectiveItemID ids.ID
type AttentionItemID ids.ID
type ProspectiveRevision uint64
type AttentionRevision uint64
type CommittedActionIntentID ids.ID
type CommittedAuthorizedActionID ids.ID
type CommittedActionAttemptID ids.ID

type ProspectiveState string

const (
	ProspectiveRegistered   ProspectiveState = "REGISTERED"
	ProspectiveArmed        ProspectiveState = "ARMED"
	ProspectiveTriggered    ProspectiveState = "TRIGGERED"
	ProspectiveRevalidating ProspectiveState = "REVALIDATING"
	ProspectiveDelivered    ProspectiveState = "DELIVERED"
	ProspectiveSatisfied    ProspectiveState = "SATISFIED"
	ProspectiveSuppressed   ProspectiveState = "SUPPRESSED"
	ProspectiveExpired      ProspectiveState = "EXPIRED"
)

type AttentionLevel string

const (
	AttentionUrgent          AttentionLevel = "URGENT"
	AttentionActionRequired  AttentionLevel = "ACTION_REQUIRED"
	AttentionDue             AttentionLevel = "DUE"
	AttentionImportantChange AttentionLevel = "IMPORTANT_CHANGE"
	AttentionFYI             AttentionLevel = "FYI"
	AttentionBackground      AttentionLevel = "BACKGROUND"
)

type AttentionState string

const (
	AttentionPending    AttentionState = "PENDING"
	AttentionDelivering AttentionState = "DELIVERING"
	AttentionDelivered  AttentionState = "DELIVERED"
	AttentionSuppressed AttentionState = "SUPPRESSED"
	AttentionExpired    AttentionState = "EXPIRED"
	AttentionFailed     AttentionState = "FAILED"
)

type AttentionSourceKind string

const (
	AttentionSourceProspectiveReminder AttentionSourceKind = "PROSPECTIVE_REMINDER"
)

// ProspectiveItem is canonical future relevance. TriggerAtUnixMillis is an
// absolute instant; scheduling engines are derived delivery mechanisms only.
type ProspectiveItem struct {
	ID                  ProspectiveItemID
	CommitmentID        CommitmentID
	OwnerPrincipalID    identity.PrincipalID
	ScopeID             authority.ScopeID
	GoalID              work.GoalID
	SourceIntentID      string
	SourceUtteranceID   string
	Summary             string
	TriggerAtUnixMillis int64
	State               ProspectiveState
	Revision            ProspectiveRevision
}

type ScheduleReminderRequest struct {
	OwnerPrincipalID      identity.PrincipalID
	ScopeID               authority.ScopeID
	SourceIntentID        string
	SourceUtteranceID     string
	Summary               string
	TriggerAtUnixMillis   int64
	RequestedAtUnixMillis int64
}

type ScheduleReminderResult struct {
	Item ProspectiveItem
}

// AttentionItem is Continuity-owned human-facing relevance state. It can be
// rendered by UIs, but it is not a notification receipt and does not itself
// grant authority for external mutation.
type AttentionItem struct {
	ID                    AttentionItemID
	OwnerPrincipalID      identity.PrincipalID
	ScopeID               authority.ScopeID
	SourceKind            AttentionSourceKind
	SourceProspectiveID   ProspectiveItemID
	Level                 AttentionLevel
	State                 AttentionState
	Summary               string
	DueAtUnixMillis       int64
	CreatedAtUnixMillis   int64
	DeliveredAtUnixMillis int64
	ActionIntentID        CommittedActionIntentID
	AuthorizedActionID    CommittedAuthorizedActionID
	ActionAttemptID       CommittedActionAttemptID
	DeliveryOutcome       string
	Revision              AttentionRevision
}

type AttentionListResult struct {
	Items []AttentionItem
}

type TodayItem struct {
	Title             string
	WhenUnixMillis    int64
	AttentionLevel    AttentionLevel
	AttentionState    AttentionState
	HumanState        string
	DeliveryState     string
	SourceDescription string
}

type TodayResult struct {
	Items []TodayItem
}

// SatisfyDeliveredSubject is the complete serializable operation subject. It
// is distinct from a Work TaskTarget, which remains the live justification.
type SatisfyDeliveredSubject struct {
	ProspectiveItemID ProspectiveItemID
	ExpectedRevision  ProspectiveRevision
	FromState         ProspectiveState
	ToState           ProspectiveState
	EvidenceRef       string
}

// SatisfyDeliveredCommand is accepted only at Continuity's internal executor
// boundary. Commit identities are references; Continuity remains state owner.
type SatisfyDeliveredCommand struct {
	ActionIntentID     CommittedActionIntentID
	AuthorizedActionID CommittedAuthorizedActionID
	OwnerPrincipalID   identity.PrincipalID
	Subject            SatisfyDeliveredSubject
}

type ActionReceipt struct {
	ActionIntentID     CommittedActionIntentID
	AuthorizedActionID CommittedAuthorizedActionID
	OwnerPrincipalID   identity.PrincipalID
	Subject            SatisfyDeliveredSubject
	ResultState        ProspectiveState
	ResultRevision     ProspectiveRevision
}