/**
 * BrowserScriptExecutor — parses and executes Playwright scripts line-by-line.
 *
 * Supports a subset of Playwright commands that can be deterministically parsed
 * from generated scripts. Unsupported lines cause a parse failure, signaling
 * the caller to fall back to AI-based execution.
 */
/**
 * Structural interface describing the browser session capabilities used by this executor.
 * Using a structural type instead of `any` lets callers pass any compatible object
 * (BrowserSession, BrowserProxySession, or a mock in tests) without a hard import.
 */
export interface BrowserSessionLike {
    getPage(): Promise<{
        goto(url: string, opts?: Record<string, unknown>): Promise<unknown>;
        click(selector: string, opts?: Record<string, unknown>): Promise<void>;
        fill(selector: string, value: string, opts?: Record<string, unknown>): Promise<void>;
        locator(selector: string): {
            innerText(opts?: Record<string, unknown>): Promise<string>;
        };
        keyboard: {
            type(text: string): Promise<void>;
            press(key: string): Promise<void>;
        };
        mouse: {
            wheel(deltaX: number, deltaY: number): Promise<void>;
        };
        waitForTimeout(ms: number): Promise<void>;
    }>;
    variables: Map<string, string>;
    actionLog: {
        add(source: string, action: string, detail: string): void;
    };
}
export interface ScriptStepResult {
    line: string;
    success: boolean;
    error?: string;
}
export interface ScriptExecutionResult {
    success: boolean;
    completedSteps: number;
    totalSteps: number;
    results: ScriptStepResult[];
    failedLine?: string;
    /** True when a line could not be parsed — caller should fall back to chat AI */
    fallbackToChat?: boolean;
}
/**
 * Execute a Playwright script against a browser session.
 */
export declare function executePlaywrightScript(session: BrowserSessionLike, script: string, onStepComplete?: (step: number, total: number, line: string) => void): Promise<ScriptExecutionResult>;
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