import type{LyraEventDetailSnapshot}from'../../../internal/lyra-element.js';import{type TemplateResult}from'lit';import{LyraElement}from'../../../internal/lyra-element.js';import type{LyraTextWrap}from'../../../internal/shared-unions.js';import type{ChatMessageRole}from'../../conversation/chat-message/chat-message.class.js';
/** Conversation message roles plus the tool-result role needed by prompt authoring. */
export type PromptStudioRole=ChatMessageRole|'tool';
/** Retained name for the shared native `<textarea wrap>` vocabulary. */
export type PromptStudioWrap=LyraTextWrap;export interface PromptStudioMessage{id:string;role:PromptStudioRole;content:string;name?:string;}export interface PromptStudioVariable{name:string;value:string;description?:string;}export interface PromptStudioVersion{id:string;label:string;messages:readonly PromptStudioMessage[];variables?:readonly PromptStudioVariable[];createdAt?:string;}export interface PromptStudioState{messages:PromptStudioMessage[];variables:PromptStudioVariable[];}export interface PromptStudioMessageReorderDetail{readonly messages:readonly PromptStudioMessage[];readonly messageId:string;readonly fromIndex:number;readonly toIndex:number;}export interface LyraPromptStudioEventMap{focus:CustomEvent<null>;blur:CustomEvent<null>;'lr-change':CustomEvent<LyraEventDetailSnapshot<PromptStudioState>>;'lr-message-reorder':CustomEvent<LyraEventDetailSnapshot<PromptStudioMessageReorderDetail>>;'lr-run':CustomEvent<LyraEventDetailSnapshot<PromptStudioState>>;'lr-save':CustomEvent<LyraEventDetailSnapshot<PromptStudioState>>;'lr-version-select':CustomEvent<LyraEventDetailSnapshot<{version:PromptStudioVersion;}>>;}
/**
* `<lr-prompt-studio>` — a provider-neutral prompt-development workbench for ordered role
* messages, `{{variable}}` substitution, version selection, preview, save, and run intents.
* The host owns persistence and model execution. Opting into message reordering exposes native,
* keyboard-operable move controls; every proposed move is cancelable before the editor state changes.
* Empty/blank message and version ids are omitted; duplicates use deterministic first-wins
* semantics. Variable rows are
* occurrence-addressed because their names are editable and may temporarily be empty or repeated;
* duplicate names remain independently editable while placeholder resolution uses the first one.
* Variable values resolve recursively; undefined and cyclic placeholders remain intact within
* preview bounds. One preview projection allows at most 64 nested variable resolutions, 10,000
* placeholder substitutions, and 1,048,576 UTF-16 code units each of aggregate preview output and
* aggregate memoized intermediate text. A localized visible fallback replaces the preview when
* a limit would be exceeded; raw editor state and save/run payloads are unchanged.
*
* Public collection properties take bounded, clone-owned readonly snapshots. Create a new
* collection and reassign it after changes; mutating the assigned array does not update the view.
*
* @customElement lr-prompt-studio
* @event lr-change - A cancelable proposal that messages or variables are about to change.
*   Carries their complete next state. Prevent it to keep the current state unchanged, the same
*   veto point `lr-message-reorder` already offers for reordering.
* @event lr-message-reorder - A cancelable request to reorder messages. Carries the proposed
*   complete message order and the moved message's id and indexes. Prevent it to persist or reject
*   the proposed order yourself, then assign `messages` when the host is ready to render it.
* @event lr-run - The current prompt was requested for execution.
* @event lr-save - The current prompt was requested for persistence.
* @event lr-version-select - A complete saved version was activated.
* @event focus - Re-dispatched when the message role selector, textarea, or a variable input receives focus,
*   since native focus neither bubbles nor crosses the shadow boundary.
* @event blur - Re-dispatched when the message textarea or a variable input loses focus.
* @csspart base - The named studio region.
* @csspart toolbar - Save/run controls.
* @csspart editor - Messages and variables workspace.
* @csspart messages - Ordered prompt-message editor.
* @csspart message - One prompt message.
* @csspart message-role - A message role selector.
* @csspart message-content - A message textarea. It deliberately keeps native vertical resizing;
*   configurable `resize` and auto-grow behavior are intentionally omitted.
* @csspart message-actions - Reorder and removal actions for one message, when reordering is enabled.
* @csspart move-message-up - A move-message-up action.
* @csspart move-message-down - A move-message-down action.
* @csspart remove-message - A message removal action.
* @csspart add-message - The add-message action.
* @csspart variables - Variable editor.
* @csspart variable - One variable row.
* @csspart versions - Saved-version controls.
* @csspart version - One saved version.
* @csspart preview - Resolved read-only preview.
* @csspart save - The save action.
* @csspart run - The run action.
* @cssprop [--lr-prompt-studio-field-hover-border=var(--lr-color-brand)] - Enabled field hover border.
* @cssprop [--lr-prompt-studio-version-selected-border=var(--lr-color-brand)] - Selected version border.
* @cssprop [--lr-prompt-studio-version-selected-bg=var(--lr-color-brand-quiet)] - Selected version background.
* @cssprop [--lr-prompt-studio-version-selected-color=var(--lr-color-text)] - Selected version foreground.
* @cssprop [--lr-prompt-studio-version-selected-hover-bg=color-mix(in oklab, var(--lr-color-brand-quiet), var(--lr-color-mix-partner) var(--lr-color-mix-hover))] - Selected version hover background.
* @status stable
* @since 7.0.0
*/
export declare class LyraPromptStudio extends LyraElement<LyraPromptStudioEventMap>{protected static readonly ownedCollectionProperties:readonly string[];static styles:import("lit").CSSResultGroup[];protected static readonly immutableEventDetails:readonly string[];
/** Host-controlled messages; a runtime non-array value renders as not-yet-loaded empty data. */
messages:readonly PromptStudioMessage[];
/** Host-controlled variables; a runtime non-array value renders as not-yet-loaded empty data. */
variables:readonly PromptStudioVariable[];
/** Host-controlled saved versions; a runtime non-array value renders as not-yet-loaded empty data. */
versions:readonly PromptStudioVersion[];selectedVersionId:string|null;
/** Accessible name for the studio region. It is independent from the visible `heading`; when
* absent, the heading text names the region. A host `aria-label` remains authoritative. */
label:string;
/** Visible toolbar heading. Falls back to the localized “Prompt studio” string. */
heading:string;running:boolean;disabled:boolean;
/** Opts into native move-up/move-down buttons for each message. A move first emits the
* cancelable `lr-message-reorder` request, so a host that needs asynchronous persistence can
* prevent it and later assign its accepted message order. */
reorderable:boolean;
/** Native editing-assistance attributes forwarded to the message textarea and variable inputs. */
spellcheck:boolean;autocapitalize:string;
/** Named `autoCorrect` to avoid the boolean `HTMLElement.autocorrect` DOM typing collision while
* preserving the native lowercase `autocorrect` attribute. */
autoCorrect:string;
/** Native `<textarea>` wrapping mode. Variable `<input>` controls do not support `wrap`. */
wrap:PromptStudioWrap;
/** The moved row's next usable action. Lit retains keyed rows but native button focus is not
* preserved when their position changes, so restore it after the new boundary state renders. */
private pendingMessageMoveFocus?;disconnectedCallback():void;private roleLabel;private state;private messageItems;private variableItems;private uniqueMessages;private uniqueVersions;private emitChange;private emitNormalizedChange;private updateMessage;private removeMessage;private addMessage;private updateVariable;private requestMessageMove;private restoreMessageMoveFocus;private resolvePreviews;private onFocus;private onBlur;private renderMessage;private renderRemoveMessage;render():TemplateResult;}declare global{interface HTMLElementTagNameMap{'lr-prompt-studio':LyraPromptStudio;}}