/**
 * TextProcessor Module
 * Encapsulates text pre-processing steps required before layout calculation.
 */
export class TextProcessor {
    /**
     * Create a new TextProcessor
     * @param {Object} smartyPants - The SmartyPants library
     * @param {Function} [hyphenator] - Optional: The hyphenation function (can be set later)
     */
    constructor(smartyPants, hyphenator = null) { // Make hyphenator optional
        this.smartyPants = smartyPants;
        this.hyphenator = hyphenator;
        this.hyphenationClass = '.hyphenatePipe'; // Default hyphenation class for Knuth-Plass with pipe character
    }

    /**
     * Process text with typographic enhancements and hyphenation
     * @param {string} text - The text to process
     * @returns {string} The processed text
     */
    process(text) {
        // First apply SmartyPants for typographic enhancement
        const smartyPantsText = this.smartyPants.smartypantsu(text, 1)
            // Remove these replacements that were causing the spacing issues
            // .replace(/\.\s*$/g, '.')   
            // .replace(/\?\s*$/g, '?')   
            // .replace(/!\s*$/g, '!')
            
            // Instead, ensure proper spacing between sentences
            .replace(/\.\s+/g, '. ')    // Normalize spaces after periods
            .replace(/\?\s+/g, '? ')    // Normalize spaces after question marks
            .replace(/!\s+/g, '! ');    // Normalize spaces after exclamation marks

        // Then apply hyphenation if available
        if (typeof this.hyphenator === 'function') {
            return this.hyphenator(smartyPantsText, this.hyphenationClass);
        } else {
            console.warn('TextProcessor: Hyphenator not set, skipping hyphenation.');
            return smartyPantsText; // Return text without hyphenation if not set
        }
    }

    /**
     * Set the hyphenator function after initialization.
     * @param {Function} hyphenatorFunction - The hyphenation function provided by Hyphenopoly.
     */
    setHyphenator(hyphenatorFunction) {
        if (typeof hyphenatorFunction === 'function') {
            this.hyphenator = hyphenatorFunction;
        } else {
            console.error('TextProcessor: Invalid hyphenator function provided.');
        }
    }

    /**
     * Set the hyphenation class
     * @param {string} className - The CSS class for hyphenation
     */
    setHyphenationClass(className) {
        this.hyphenationClass = className;
    }

    /**
     * Get the current hyphenation class
     * @returns {string} The current hyphenation class
     */
    getHyphenationClass() {
        return this.hyphenationClass;
    }
}