import type { IfcDataStore } from './columnar-parser.js';
export type SequenceTypeEnum = 'START_START' | 'START_FINISH' | 'FINISH_START' | 'FINISH_FINISH' | 'USERDEFINED' | 'NOTDEFINED';
export type TaskDurationType = 'WORKTIME' | 'ELAPSEDTIME' | 'NOTDEFINED';
export interface ScheduleTaskTimeInfo {
    scheduleStart?: string;
    scheduleFinish?: string;
    scheduleDuration?: string;
    actualStart?: string;
    actualFinish?: string;
    actualDuration?: string;
    earlyStart?: string;
    earlyFinish?: string;
    lateStart?: string;
    lateFinish?: string;
    freeFloat?: string;
    totalFloat?: string;
    remainingTime?: string;
    durationType?: TaskDurationType;
    statusTime?: string;
    isCritical?: boolean;
    completion?: number;
}
export interface ScheduleTaskInfo {
    expressId: number;
    globalId: string;
    name: string;
    description?: string;
    objectType?: string;
    identification?: string;
    longDescription?: string;
    status?: string;
    workMethod?: string;
    isMilestone: boolean;
    priority?: number;
    predefinedType?: string;
    taskTime?: ScheduleTaskTimeInfo;
    /** Parent task globalId (from IfcRelNests where this task is in RelatedObjects). */
    parentGlobalId?: string;
    /** Child task globalIds (from IfcRelNests where this task is RelatingObject). */
    childGlobalIds: string[];
    /** expressIds of products assigned to this task via IfcRelAssignsToProcess. */
    productExpressIds: number[];
    /** globalIds of the same products (aligned with productExpressIds by index). */
    productGlobalIds: string[];
    /** WorkSchedule globalIds that control this task via IfcRelAssignsToControl. */
    controllingScheduleGlobalIds: string[];
}
export interface ScheduleSequenceInfo {
    globalId: string;
    relatingTaskGlobalId: string;
    relatedTaskGlobalId: string;
    sequenceType: SequenceTypeEnum;
    userDefinedSequenceType?: string;
    /** Lag value expressed in seconds if it resolves to an IfcDuration; otherwise undefined. */
    timeLagSeconds?: number;
    /** Original lag duration string (ISO 8601 like 'P1D'), if available. */
    timeLagDuration?: string;
}
export interface WorkScheduleInfo {
    expressId: number;
    globalId: string;
    kind: 'WorkSchedule' | 'WorkPlan';
    name: string;
    description?: string;
    identification?: string;
    creationDate?: string;
    purpose?: string;
    duration?: string;
    startTime?: string;
    finishTime?: string;
    predefinedType?: string;
    /** Root task globalIds directly assigned via IfcRelAssignsToControl. */
    taskGlobalIds: string[];
}
export interface ScheduleExtraction {
    workSchedules: WorkScheduleInfo[];
    tasks: ScheduleTaskInfo[];
    sequences: ScheduleSequenceInfo[];
    /** True if we encountered any scheduling entity (useful for empty-state UI). */
    hasSchedule: boolean;
}
/**
 * Parse an ISO-8601 duration string (e.g. "P1D", "PT2H30M", "P1Y2M3DT4H5M6S")
 * into a number of seconds. Returns undefined on invalid input.
 */
export declare function parseIso8601Duration(value: string | undefined): number | undefined;
/**
 * Extract all scheduling data from a parsed IFC store.
 *
 * Walks every IfcTask / IfcTaskTime / IfcRelSequence / IfcRelAssignsToProcess /
 * IfcRelAssignsToControl / IfcRelNests / IfcWorkSchedule / IfcWorkPlan entity
 * and assembles a connected ScheduleExtraction.
 */
export declare function extractScheduleOnDemand(store: IfcDataStore): ScheduleExtraction;
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