import type{LyraEventDetailSnapshot}from'../../../internal/lyra-element.js';import{type PropertyValues,type TemplateResult}from'lit';import type{DocumentRef}from'../../../ai/types.js';import{LyraElement}from'../../../internal/lyra-element.js';export interface PromptQueueItem{id:string;value:string;attachments?:readonly DocumentRef[];createdAt?:number;
/** Opaque caller metadata preserved in proposed queue and send-now payloads. */
metadata?:Record<string,unknown>;}export type PromptQueueChangeReason='edit'|'remove'|'reorder';export interface PromptQueueChangeDetail{items:PromptQueueItem[];reason:PromptQueueChangeReason;itemId:string;}export interface LyraPromptQueueEventMap{'lr-queue-change':CustomEvent<LyraEventDetailSnapshot<PromptQueueChangeDetail>>;'lr-send-now':CustomEvent<LyraEventDetailSnapshot<{item:PromptQueueItem;}>>;}
/**
* `<lr-prompt-queue>` — a controlled queue of follow-up prompts that can be edited, reordered,
* removed, or sent immediately while another agent turn is active.
* Item ids are unique occurrence identities. Empty ids and later duplicate occurrences are
* ignored before rendering or proposing a mutation, so every `itemId` remains unambiguous.
* When the host accepts a removal while that row's action owns focus, the equivalent action on
* the nearest surviving row receives focus; an emptied queue focuses its stable region instead.
* Controlled updates never steal focus when the removed row did not own it.
*
* Public item sequences are bounded, frozen snapshots. Admitted item identities remain opaque only
* while a descriptor-safe projection copies the queue's display and proposal fields once; later
* rendering and events never reread the source row or its opaque metadata. Create a new collection
* and reassign it after changes; mutating an assigned array does not update the view.
*
* @customElement lr-prompt-queue
* @event lr-queue-change - A proposed controlled queue update. `detail: { items, reason, itemId }`.
* @event lr-send-now - Immediate send was requested. `detail: { item }`.
* @csspart base - The queue wrapper.
* @csspart heading - The queue heading.
* @csspart list - The ordered queue list.
* @csspart item - One queued prompt.
* @csspart value - Read-only prompt text when `editable` is false.
* @csspart editor - A queued prompt editor.
* @csspart attachments - The visible attachment-name list for one prompt.
* @csspart attachment - One attachment name.
* @csspart actions - One item's action row.
* @csspart action - Every item action.
* @csspart empty - The empty state.
* @status stable
* @since 7.0.0
*/
export declare class LyraPromptQueue extends LyraElement<LyraPromptQueueEventMap>{protected static readonly ownedCollectionProperties:readonly string[];
/** Queue items may carry opaque host metadata. Keep each admitted source identity only while the
* canonical projection copies its closed row schema once, rather than deep-cloning unknown data. */
protected static readonly identityCollectionProperties:readonly string[];static styles:import("lit").CSSResultGroup[];protected static readonly immutableEventDetails:readonly string[];
/** Queue metadata is opaque caller state. Preserve it through the frozen event envelope instead
* of recursively reflecting it after the canonical row projection has admitted it. */
protected static readonly identityEventDetailProperties:Readonly<{'lr-send-now':readonly string[];}>;protected static readonly identityEventDetailCollectionItems:Readonly<{'lr-queue-change':readonly string[];}>;
/** Controlled queued prompts. Accessor-backed or malformed rows and attachments are omitted;
* duplicate nonblank item ids normalize first-wins after full row validation. */
items:readonly PromptQueueItem[];editable:boolean;disabled:boolean;label:string;accessibleLabel:string|null;private pendingRemovalFocus?;private readonly canonicalItemsBySource;private canonicalItemsFor;
/** Never reproject a prior retained collection: a caller may have made its opaque rows hostile
* after admission, while focused controlled-update recovery needs only its recorded identities. */
private cachedCanonicalItemsFor;private get effectiveItems();protected willUpdate(changed:PropertyValues):void;protected updated(changed:PropertyValues):void;private emitChange;private edit;private removeItem;private move;private sendNow;private containNativeEvent;private renderItem;render():TemplateResult;}declare global{interface HTMLElementTagNameMap{'lr-prompt-queue':LyraPromptQueue;}}