import * as _storyteller_platform_ghost_story from '@storyteller-platform/ghost-story';
import { TimelineEntry } from '@storyteller-platform/ghost-story';
import { SegmentationResult } from '@echogarden/text-segmentation';
import { Mapping } from '@storyteller-platform/mapping';

type StorytellerTimelineEntry = TimelineEntry & {
    audiofile: string;
};
type StorytellerTranscription = {
    transcript: string;
    timeline: StorytellerTimelineEntry[];
};
type SentenceRange = {
    id: number;
    chapterId: string;
    start: number;
    end: number;
    audiofile: string;
};
type WordRange = {
    id: number;
    chapterId: string;
    sentenceId: number;
    start: number;
    end: number;
    audiofile: string;
};
declare function findEndTimestamp(matchEndIndex: number, timeline: MappedTimeline): {
    start: number;
    end: number;
    audiofile: string;
} | null;
declare function mapTranscriptionTimeline(transcription: StorytellerTranscription, mapping: Mapping): {
    mappedStartOffsetUtf16: number;
    mappedEndOffsetUtf16: number;
    type: _storyteller_platform_ghost_story.TimelineEntryType;
    text: string;
    startTime: number;
    endTime: number;
    startOffsetUtf16?: number;
    endOffsetUtf16?: number;
    startOffsetUtf32?: number;
    endOffsetUtf32?: number;
    confidence?: number;
    id?: number;
    timeline?: _storyteller_platform_ghost_story.Timeline;
    audiofile: string;
}[];
type MappedTimeline = ReturnType<typeof mapTranscriptionTimeline>;
declare function getSentenceRanges(transcriptionText: string, mappedTimeline: MappedTimeline, sentences: SegmentationResult["sentences"], chapterId: string, chapterOffset: number, chapterEndOffset: number, granularity: "sentence" | "word", locale: Intl.Locale): Promise<{
    sentenceRanges: SentenceRange[];
    wordRanges: WordRange[][];
    transcriptionOffset: number;
    firstFoundSentence: number;
    lastFoundSentence: number;
}>;
/**
 * Whisper sometimes provides words with no time information,
 * or start and end timestamps that are equal. EpubCheck complains
 * about these, so we nudge them out a bit to make sure that they're
 * not truly equal.
 */
declare function expandEmptySentenceRanges<Range extends SentenceRange | WordRange>(sentenceRanges: Range[]): Range[];
declare function collapseSentenceRangeGaps(sentenceRanges: SentenceRange[]): Promise<SentenceRange[]>;
declare function getChapterDuration(sentenceRanges: SentenceRange[]): number;

export { type MappedTimeline, type SentenceRange, type StorytellerTimelineEntry, type StorytellerTranscription, type WordRange, collapseSentenceRangeGaps, expandEmptySentenceRanges, findEndTimestamp, getChapterDuration, getSentenceRanges, mapTranscriptionTimeline };