import type { ServiceInstallDeps } from "@danypops/vehicle-server/service";
export interface ServiceUnitDiagnostic {
    code: "SERVICE_EXEC_PATH_MISSING" | "SERVICE_NOT_RUNNING" | "SERVICE_STATUS_UNAVAILABLE" | "SERVICE_STALE_CODE" | "SERVICE_VERSION_MISMATCH" | "SERVICE_NOT_REGISTERED" | "SERVICE_DESCRIPTOR_DRIFT" | "SERVICE_REQUIREMENT_UNRESOLVED";
    severity: "error" | "warning";
    package: string;
    unitName: string;
    message: string;
}
export interface ServiceDoctorReport {
    ok: boolean;
    diagnostics: ServiceUnitDiagnostic[];
    checked: number;
}
export interface ServiceDoctorDeps extends ServiceInstallDeps {
    fileExists(path: string): boolean;
    /** Undefined (never throws) when the path doesn't exist or can't be stat'd. */
    getMtimeMs(path: string): number | undefined;
}
export declare function checkServiceUnitPaths(piHome: string, projectRoot: string | undefined, deps: ServiceDoctorDeps): ServiceDoctorReport;
export declare function formatServiceDoctorReport(report: ServiceDoctorReport, json: boolean): string;
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