import { CoreEvents } from '../constants/CoreEvents';
import { WORK_WEEK_PRESETS } from '../configurations/CalendarConfig';
/**
 * WorkweekPresetsManager - Manages workweek preset UI and state
 *
 * RESPONSIBILITY:
 * ===============
 * This manager owns all logic related to the <swp-workweek-presets> UI element.
 * It follows the principle that each functional UI element has its own manager.
 *
 * RESPONSIBILITIES:
 * - Owns WORK_WEEK_PRESETS data
 * - Handles button clicks on swp-preset-button elements
 * - Manages current workweek preset state
 * - Validates preset IDs
 * - Emits WORKWEEK_CHANGED events
 * - Updates button UI states (data-active attributes)
 *
 * EVENT FLOW:
 * ===========
 * User clicks button → changePreset() → validate → update state → emit event → update UI
 *
 * SUBSCRIBERS:
 * ============
 * - ConfigManager: Updates CSS variables (--grid-columns)
 * - GridManager: Re-renders grid with new column count
 * - CalendarManager: Relays to header update (via workweek:header-update)
 * - HeaderManager: Updates date headers
 */
export class WorkweekPresetsManager {
    constructor(eventBus, config) {
        this.buttonListeners = new Map();
        this.eventBus = eventBus;
        this.config = config;
        this.setupButtonListeners();
    }
    /**
     * Setup click listeners on all workweek preset buttons
     */
    setupButtonListeners() {
        const buttons = document.querySelectorAll('swp-preset-button[data-workweek]');
        buttons.forEach(button => {
            const clickHandler = (event) => {
                event.preventDefault();
                const presetId = button.getAttribute('data-workweek');
                if (presetId) {
                    this.changePreset(presetId);
                }
            };
            button.addEventListener('click', clickHandler);
            this.buttonListeners.set(button, clickHandler);
        });
        // Initialize button states
        this.updateButtonStates();
    }
    /**
     * Change the active workweek preset
     */
    changePreset(presetId) {
        if (!WORK_WEEK_PRESETS[presetId]) {
            console.warn(`Invalid preset ID "${presetId}"`);
            return;
        }
        if (presetId === this.config.currentWorkWeek) {
            return; // No change
        }
        const previousPresetId = this.config.currentWorkWeek;
        this.config.currentWorkWeek = presetId;
        const settings = WORK_WEEK_PRESETS[presetId];
        // Update button UI states
        this.updateButtonStates();
        // Emit event for subscribers
        this.eventBus.emit(CoreEvents.WORKWEEK_CHANGED, {
            workWeekId: presetId,
            previousWorkWeekId: previousPresetId,
            settings: settings
        });
    }
    /**
     * Update button states (data-active attributes)
     */
    updateButtonStates() {
        const buttons = document.querySelectorAll('swp-preset-button[data-workweek]');
        buttons.forEach(button => {
            const buttonPresetId = button.getAttribute('data-workweek');
            if (buttonPresetId === this.config.currentWorkWeek) {
                button.setAttribute('data-active', 'true');
            }
            else {
                button.removeAttribute('data-active');
            }
        });
    }
}
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