class NotifyBubble {
    constructor(trayButton, bubbleSelector) {
        this.button = trayButton;
        this.bubble = document.querySelector(bubbleSelector);
        this.hideTimeout = null;
        this.initEvents();
        this.initExistingItems();
        this.updateCounter(); // 🔥 initialer Counter
    }

    /* =========================
       SHOW / HIDE
    ========================== */
    show() {
        clearTimeout(this.hideTimeout);
        this.button.classList.add("active");

        // Tooltip entfernen beim Öffnen
        this.button.removeAttribute('data-tooltip');
    }

    hide(delay = 1000) {
        clearTimeout(this.hideTimeout);

        this.hideTimeout = setTimeout(() => {
            this.button.classList.remove("active");

            // 🔥 Counter nach Schließen anzeigen
            this.updateCounter();

        }, delay);
    }

    /* =========================
       COUNTER / TOOLTIP
    ========================== */
    updateCounter() {
        const items = this.bubble.querySelectorAll(".bubble-item");
        const count = items.length;

        if (!this.button.classList.contains("active") && count > 0) {
            this.button.setAttribute('data-tooltip', `${count} neue Benachrichtigung${count > 1 ? 'en' : ''}`);
        } else {
            this.button.setAttribute('data-tooltip', "Keine Benachrichtigungen");
        }
    }

    /* =========================
       EVENTS
    ========================== */
    initEvents() {
        // Toggle bei Klick auf Button
        this.button.addEventListener("click", (e) => {
            e.stopPropagation();

            if (this.button.classList.contains("active")) {
                this.hide(0);
            } else {
                this.show();
            }
        });

        // Klick innerhalb der Bubble soll NICHT schließen
        this.bubble.addEventListener("click", (e) => {
            e.stopPropagation();
        });

        // Klick irgendwo anders → schließen
        document.addEventListener("click", () => {
            if (this.button.classList.contains("active")) {
                this.hide(0);
            }
        });
    }

    /* =========================
       INIT EXISTING ITEMS
    ========================== */
    initExistingItems() {
        this.bubble.querySelectorAll(".bubble-item").forEach(item => {
            this.attachItemEvents(item);
        });
    }

    /* =========================
       ITEM EVENTS
    ========================== */
    attachItemEvents(item) {
        item.addEventListener("click", () => {
            const checkbox = item.querySelector("input[type='checkbox']");
            if (checkbox) {
                checkbox.checked = !checkbox.checked;

                fetch('/api/NotifyTray/markAsSeen', {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    body: JSON.stringify({
                        id: item.dataset.id,
                        value: checkbox.checked
                    })
                });

                // 🔥 Counter ggf. aktualisieren
                this.updateCounter();
            }
        });
    }

    /* =========================
       ADD SINGLE ITEM
    ========================== */
    addItem(notification) {
        const item = document.createElement("label");
        item.className = "bubble-item";
        item.dataset.id = notification.ID;

        item.innerHTML = `
            <div>${notification.Message}</div>

            <div style="display:flex;flex-direction:row;flex-wrap:no-wrap;justify-content:flex-end;gap:10px;align-items:center;">
                <div>
                    <div>${dateFormat(notification.CreatedAt, 'dd.mm.yyyy HH:MM:SS')}</div>
                    <div>${notification.PluginName}</div>
                </div>
                <div>
                    <label class="cb cb-modern">
                        <input id="notification_${notification.ID}" type="checkbox">
                        <span class="cb-box"></span>
                    </label>
                </div>
            </div>
        `;

        this.attachItemEvents(item);
        this.bubble.appendChild(item);

        // 🔥 Counter aktualisieren
        this.updateCounter();
    }

    /* =========================
       ADD MULTIPLE ITEMS
    ========================== */
    addItems(notifications) {
        notifications.forEach(n => this.addItem(n));
    }

    /* =========================
       CLEAR
    ========================== */
    clear() {
        this.bubble.innerHTML = "";
        this.updateCounter();
    }
}