window.WarpBoxAccountUI = (() => {
    let toastTimer = null;
    let activeConfirmResolve = null;

    function initStickyTaskbar(options = {}) {
        const taskbar = options.taskbar || document.querySelector(".top-taskbar");
        if (!taskbar) return;

        const update = () => {
            taskbar.classList.toggle("is-scrolled", window.scrollY > 2);
        };

        update();
        window.addEventListener("scroll", update, { passive: true });
    }

    function closeMenus(root = document) {
        root.querySelectorAll(".menu-item.is-open").forEach((item) => {
            item.classList.remove("is-open");
            item.querySelector(".menu-button")?.setAttribute("aria-expanded", "false");
        });
    }

    function openMenu(item) {
        if (!item) return;
        closeMenus(item.closest(".menu-bar") || document);
        item.classList.add("is-open");
        item.querySelector(".menu-button")?.setAttribute("aria-expanded", "true");
    }

    function initMenus(options = {}) {
        const root = options.root || document;
        root.addEventListener("click", (event) => {
            const button = event.target.closest(".menu-button");
            if (button) {
                const item = button.closest(".menu-item");
                const isOpen = item?.classList.contains("is-open");
                closeMenus(root);
                if (!isOpen) openMenu(item);
                return;
            }

            if (!event.target.closest(".menu-item")) {
                closeMenus(root);
            }
        });

        root.querySelectorAll(".menu-item").forEach((item) => {
            item.addEventListener("mouseenter", () => {
                if (!root.querySelector(".menu-item.is-open")) return;
                openMenu(item);
            });
        });

        document.addEventListener("keydown", (event) => {
            if (event.key === "Escape") closeMenus(root);
        });
    }

    function toast(message, type = "info", options = {}) {
        if (window.WarpBoxUI?.toast && !options.forceAccountToast) {
            window.WarpBoxUI.toast(message, type, options);
            return;
        }

        const target = options.target || document.querySelector("#account-toast") || document.querySelector("#toast");
        if (!target) return;

        target.textContent = message;
        target.classList.remove("toast-info", "toast-success", "toast-warning", "toast-error", "is-visible");
        target.classList.add(`toast-${type}`, "is-visible");
        clearTimeout(toastTimer);
        toastTimer = setTimeout(() => target.classList.remove("is-visible"), options.duration || 2600);
    }

    function modalElements(options = {}) {
        return {
            modal: options.modal || document.querySelector("#account-modal"),
            title: options.title || document.querySelector("#account-modal-title"),
            body: options.body || document.querySelector("#account-modal-body"),
            backdrop: options.backdrop || document.querySelector("#account-modal-backdrop") || document.querySelector("#modal-backdrop"),
        };
    }

    function openModal(titleText, html, options = {}) {
        const parts = modalElements(options);
        if (!parts.modal || !parts.title || !parts.body) {
            if (window.WarpBoxUI?.openPopup) {
                window.WarpBoxUI.openPopup(titleText, html, options);
            }
            return;
        }

        parts.title.textContent = titleText;
        if (options.text) {
            parts.body.textContent = html;
        } else {
            parts.body.innerHTML = html;
        }
        parts.modal.classList.add("is-visible");
        parts.backdrop?.classList.add("is-visible");
        parts.modal.querySelector("[data-modal-close]")?.focus();
    }

    function closeModal(options = {}) {
        const parts = modalElements(options);
        parts.modal?.classList.remove("is-visible");
        parts.backdrop?.classList.remove("is-visible");
        if (window.WarpBoxUI?.closePopup && !parts.modal) {
            window.WarpBoxUI.closePopup(options);
        }
    }

    function confirm(message, options = {}) {
        const title = options.title || "Confirm action";
        const confirmLabel = options.confirmLabel || "OK";
        const cancelLabel = options.cancelLabel || "Cancel";
        const html = `
            <p>${htmlEscape(message)}</p>
            <div class="modal-actions">
                <button class="win98-button" type="button" data-confirm-cancel>${htmlEscape(cancelLabel)}</button>
                <button class="win98-button" type="button" data-confirm-ok>${htmlEscape(confirmLabel)}</button>
            </div>
        `;

        const parts = modalElements(options);
        if (!parts.modal) {
            return Promise.resolve(window.confirm(message));
        }

        openModal(title, html, options);
        return new Promise((resolve) => {
            activeConfirmResolve = resolve;
            parts.modal.querySelector("[data-confirm-ok]")?.focus();
        });
    }

    function finishConfirm(result) {
        if (activeConfirmResolve) {
            activeConfirmResolve(result);
            activeConfirmResolve = null;
        }
        closeModal();
    }

    function setDirtyState(isDirty, options = {}) {
        const target = options.target || document.querySelector("[data-dirty-chip]");
        if (!target) return;
        target.classList.toggle("is-dirty", Boolean(isDirty));
        target.textContent = isDirty ? (options.dirtyText || "unsaved changes") : (options.cleanText || "");
    }

    function bindFormDirtyState(form, options = {}) {
        const targetForm = typeof form === "string" ? document.querySelector(form) : form;
        if (!targetForm) return;

        let baseline = new FormData(targetForm);
        const serialize = () => new URLSearchParams(new FormData(targetForm)).toString();
        let baselineValue = new URLSearchParams(baseline).toString();

        const update = () => setDirtyState(serialize() !== baselineValue, options);
        targetForm.addEventListener("input", update);
        targetForm.addEventListener("change", update);
        targetForm.addEventListener("submit", () => {
            baseline = new FormData(targetForm);
            baselineValue = new URLSearchParams(baseline).toString();
            setDirtyState(false, options);
        });
        update();
    }

    function bindConfirmActions(root = document) {
        root.addEventListener("click", async (event) => {
            const ok = event.target.closest("[data-confirm-ok]");
            if (ok) {
                finishConfirm(true);
                return;
            }

            const cancel = event.target.closest("[data-confirm-cancel], [data-modal-close]");
            if (cancel) {
                finishConfirm(false);
                return;
            }

            const action = event.target.closest("[data-confirm]");
            if (!action) return;
            if (action.dataset.confirmAccepted === "true") {
                delete action.dataset.confirmAccepted;
                return;
            }

            const message = action.getAttribute("data-confirm");
            if (!message) return;

            event.preventDefault();
            event.stopPropagation();

            const accepted = await confirm(message, {
                title: action.getAttribute("data-confirm-title") || "Confirm action",
                confirmLabel: action.getAttribute("data-confirm-label") || "OK",
                cancelLabel: action.getAttribute("data-cancel-label") || "Cancel",
            });
            if (!accepted) return;

            if (action instanceof HTMLAnchorElement && action.href) {
                window.location.href = action.href;
                return;
            }

            const form = action.closest("form");
            const type = (action.getAttribute("type") || "").toLowerCase();
            if (form && (type === "submit" || type === "")) {
                form.requestSubmit(action);
                return;
            }

            action.dataset.confirmAccepted = "true";
            action.click();
        });
    }

    function htmlEscape(value) {
        return String(value || "")
            .replaceAll("&", "&amp;")
            .replaceAll("<", "&lt;")
            .replaceAll(">", "&gt;")
            .replaceAll('"', "&quot;")
            .replaceAll("'", "&#39;");
    }

    function init(root = document) {
        initStickyTaskbar();
        initMenus({ root });
        bindConfirmActions(root);
        document.querySelector("#account-modal-backdrop")?.addEventListener("click", () => closeModal());
        document.addEventListener("keydown", (event) => {
            if (event.key === "Escape") closeModal();
        });
    }

    return {
        init,
        initStickyTaskbar,
        initMenus,
        toast,
        confirm,
        openModal,
        closeModal,
        setDirtyState,
        bindFormDirtyState,
        closeMenus,
    };
})();

document.addEventListener("DOMContentLoaded", () => {
    window.WarpBoxAccountUI.init();
});