import type { SourceLayer } from '../../../factories/create-source-layer.js';
import type { AdditionalTextData, AdditionalTextDataText } from '../../../typings/raw/index.js';
export type LayerSequence = {
    sourceLayers: SourceLayer[];
    additionalTextDataText?: AdditionalTextDataText;
};
export declare class TextLayerGroupingservice {
    private _originalAdditionalTextData;
    /** @_additionalTextDataWithOctopusSpecialCharacters is used to replace text in merged text layers.
     * Resulting Octopus has its own special characters for endline and double endline.
     * SourceLayerText textValue does not have these special characters.
     */
    private _additionalTextDataWithOctopusSpecialCharacters;
    /** @_additionalTextData field is original  additionalTextData cleaned from special characters as input @SourceLayerText
     * textValue has no special characters. We then match SourceLayerText textValue against this input field.
     */
    private _additionalTextData;
    /** @_currentMatches field contains matches against incoming block of text with @remainder field
     * which indicates remaining text to be matched. Matched text is sliced out from the @remainder field.
     */
    private _currentMatches;
    /** @_layerSequences is result of whole procedure as we need coherent sequence of SourceLayerText which will
     * form 1 OctopusTextLayer. For other layers than SourceLayerText, is only 1 layer in the sequence.
     */
    private _layerSequences;
    /** @_lastTextLayerSequence if sequence of SourceTextLayers together with @AditionalTextDataText. We keep this reference
     * so that we can either push next SourceTextLayer into sequence or start new sequence if next SourceTextLayer is not part
     * of the sequence
     */
    private _lastTextLayerSequence;
    static END_LINE: string;
    static DOUBLE_END_LINE: string;
    /**  these are new special characters found in text END_LINE_UNICODE was easy to google, but T I have no idea what it
     * is. Opened issue with new special characters being introduced and asked for mapping.
     * https://gitlab.avcd.cz/opendesign/illustrator-parser-pdfcpu/-/issues/4
     */
    static END_LINE_UNICODE: string;
    static TAB: string;
    static END_LINE_OCTOPUS: string;
    static DOUBLE_END_LINE_OCTOPUS: string;
    static OCTOPUS_DICTIONARY: {
        [x: string]: string;
    };
    static ADDITIONAL_TEXT_DATA_DICTIONARY: {
        [x: string]: string;
    };
    static SPECIAL_CHARACTERS: string[];
    static TEXT_LAYER: string;
    static OCTOPUS_EXTRA_CHARACTERS: string[];
    constructor(additionalTextData: AdditionalTextData);
    private _replaceAllSpecialCharacters;
    private _initAdditionalTextData;
    /** @_getRemainingTextMatches  selects all matches which have remainder field starting with
     * SourceLayerText.textValue and cuts out matching text from the remainder. Sliced out text lenghts
     * can differ due to trailing hyphens which are not present in AdditionalTextData but can be present in
     * original text.
     */
    private _getRemainingTextMatches;
    /** @_setCurrentMatches sets current matches with already text from incoming @SourceLayerText  already
     * sliced out.
     */
    private _setCurrentMatches;
    /** Whenever we find and use best match in AdditionalTextData, we need to remove it so it does not
     * get used again. All source texts should be covered by AdditionalTextData once and only once.
     */
    private _eliminateMatchFromAdditionalTextData;
    /** @_isSourceLayerPartOfLastTextSequence determines if we should start new layerSequence by comparing the
     * incoming sourceLayerText textvalue to remainders of previous LayerSequence.
     */
    private _isSourceLayerPartOfLastTextSequence;
    /** @_getBestMatch finds best match according to shortest remainder criteria.
     * AdditionalTextData can have texts which are longer than input text as some of the texts are hidden,
     * but we need to put in all text from additonalTextData into octopus.
     */
    private _getBestMatch;
    /**  AdditionalTextData can have texts which are longer than input text as some of the texts are hidden,
     * but we need to put in all text from additonalTextData into Octopus. Therefore we copy the best match into
     * LayerSequence so it can be used whole (even the text which is not is SourceLayerText)
     */
    private _addBestMatchToLastTextLayerSequence;
    private _setNewLastLayerTextSequence;
    private _pushTextLayer;
    getLayerSequences(sourceLayers: SourceLayer[]): LayerSequence[];
}