export interface BgTaskOutputSubscriber {
    onLine: (event: {
        stream: "stdout" | "stderr";
        text: string;
        seq: number;
    }) => void;
    onDone: (event: {
        status: string;
        exitCode: number | null;
        signal: string | null;
    }) => void;
}

export interface BgTaskOutputSnapshot {
    taskId: string;
    status: string;
    exitCode: number | null;
    signal: string | null;
    startedAt: number;
    finishedAt: number | null;
    command: string;
    lines: string[];
    nextSeq: number;
    totalLines: number;
    totalBytes: number;
    truncated: boolean;
}

export interface BgTaskSummary {
    taskId: string;
    status: string;
    command: string;
    commandPreview: string;
    description?: string;
    cwd: string;
    startedAt: number;
    finishedAt: number | null;
    exitCode: number | null;
    signal: string | null;
    outputLineCount: number;
    outputBytes: number;
}

export interface BgManagerLike {
    getTaskOutputSnapshot(agentId: string, taskId: string, tailLines?: number): BgTaskOutputSnapshot | null;
    subscribeTaskOutput(agentId: string, taskId: string, subscriber: BgTaskOutputSubscriber): (() => void) | null;
    
    listTasksWithReconcile?(agentId: string, statusFilter?: string): Promise<BgTaskSummary[]>;
}

export declare function getAcodeBgManager(): Promise<BgManagerLike | null>;