import { CoreEvents } from '../constants/CoreEvents';
/**
 * NavigationButtons - Manages navigation button UI and navigation logic
 *
 * RESPONSIBILITY:
 * ===============
 * This manager owns all logic related to the <swp-nav-group> UI element
 * and performs the actual navigation calculations.
 *
 * RESPONSIBILITIES:
 * - Handles button clicks on swp-nav-button elements
 * - Validates navigation actions (prev, next, today)
 * - Calculates next/previous dates based on current view
 * - Emits NAVIGATION_COMPLETED events with new date
 * - Manages button UI listeners
 *
 * EVENT FLOW:
 * ===========
 * User clicks button → calculateNewDate() → emit NAVIGATION_COMPLETED → GridManager re-renders
 */
export class NavigationButtons {
    constructor(eventBus, dateService, config) {
        this.buttonListeners = new Map();
        this.currentDate = new Date();
        this.currentView = 'week';
        this.eventBus = eventBus;
        this.dateService = dateService;
        this.config = config;
        this.setupButtonListeners();
        this.subscribeToEvents();
    }
    /**
     * Subscribe to events
     */
    subscribeToEvents() {
        // Listen for view changes
        this.eventBus.on(CoreEvents.VIEW_CHANGED, (e) => {
            const detail = e.detail;
            this.currentView = detail.currentView;
        });
    }
    /**
     * Setup click listeners on all navigation buttons
     */
    setupButtonListeners() {
        const buttons = document.querySelectorAll('swp-nav-button[data-action]');
        buttons.forEach(button => {
            const clickHandler = (event) => {
                event.preventDefault();
                const action = button.getAttribute('data-action');
                if (action && this.isValidAction(action)) {
                    this.handleNavigation(action);
                }
            };
            button.addEventListener('click', clickHandler);
            this.buttonListeners.set(button, clickHandler);
        });
    }
    /**
     * Handle navigation action
     */
    handleNavigation(action) {
        switch (action) {
            case 'prev':
                this.navigatePrevious();
                break;
            case 'next':
                this.navigateNext();
                break;
            case 'today':
                this.navigateToday();
                break;
        }
    }
    /**
     * Navigate in specified direction
     */
    navigate(direction) {
        const offset = direction === 'next' ? 1 : -1;
        let newDate;
        switch (this.currentView) {
            case 'week':
                newDate = this.dateService.addWeeks(this.currentDate, offset);
                break;
            case 'month':
                newDate = this.dateService.addMonths(this.currentDate, offset);
                break;
            case 'day':
                newDate = this.dateService.addDays(this.currentDate, offset);
                break;
            default:
                newDate = this.dateService.addWeeks(this.currentDate, offset);
        }
        this.currentDate = newDate;
        const payload = {
            direction: direction,
            newDate: newDate
        };
        this.eventBus.emit(CoreEvents.NAV_BUTTON_CLICKED, payload);
    }
    /**
     * Navigate to next period
     */
    navigateNext() {
        this.navigate('next');
    }
    /**
     * Navigate to previous period
     */
    navigatePrevious() {
        this.navigate('previous');
    }
    /**
     * Navigate to today
     */
    navigateToday() {
        this.currentDate = new Date();
        const payload = {
            direction: 'today',
            newDate: this.currentDate
        };
        this.eventBus.emit(CoreEvents.NAV_BUTTON_CLICKED, payload);
    }
    /**
     * Validate if string is a valid navigation action
     */
    isValidAction(action) {
        return ['prev', 'next', 'today'].includes(action);
    }
}
//# sourceMappingURL=NavigationButtons.js.map