/* ============================================================
   VOR Bootstrap / Globals
============================================================ */
window.VOR = window.VOR || {};
VOR.locale = VOR.locale ?? 'en-US';
VOR.currency = VOR.currency ?? 'EUR';

/* ============================================================
   Network / API
============================================================ */
VOR.post = async function (data = {}, target, method, opts = {}) {
    const {
        url = "/rss/php/handler.php",
        timeoutMs = 15000,
        credentials = "same-origin",
    } = opts;

    if (!target || !method) {
        return { ok: false, error: "Missing target/method" };
    }

    const fd = new FormData();

    const append = (k, v) => {
        if (v === undefined || v === null) return;

        if (v instanceof File || v instanceof Blob) {
            fd.append(k, v);
            return;
        }

        if (v instanceof FileList) {
            for (const f of v) fd.append(k, f);
            return;
        }

        if (Array.isArray(v)) {
            for (const item of v) append(`${k}[]`, item);
            return;
        }

        if (typeof v === "object") {
            fd.append(k, JSON.stringify(v));
            return;
        }

        fd.append(k, String(v));
    };

    for (const [k, v] of Object.entries(data || {})) {
        append(k, v);
    }

    fd.append("target", target);
    fd.append("method", method);

    const ctrl = timeoutMs ? new AbortController() : null;
    const t = timeoutMs ? setTimeout(() => ctrl.abort(), timeoutMs) : null;

    try {
        const res = await fetch(url, {
            method: "POST",
            body: fd,
            credentials,
            signal: ctrl?.signal,
        });

        try {
            const resp = await res.json();

            if (!res.ok) {
                return {
                    ok: false,
                    error: resp?.message || `HTTP ${res.status}`,
                    status: res.status,
                    raw: resp,
                };
            }

            if (!resp || typeof resp !== "object") {
                return {
                    ok: false,
                    error: "Bas json response",
                    status: res.status,
                };
            }

            if (resp.status == "success") {
                return {
                    ok: true,
                    data: resp.message,
                    status: res.status,
                    raw: resp,
                };
            }

            return {
                ok: false,
                error: resp.message ?? "Failed",
                status: res.status,
                raw: resp,
            };
        } catch (err) {
            return { ok: false, error: "Could not parse JSON", status: res.status };
        }
    } catch (errno) {
        const msg =
            errno?.name === "AbortError" ? "Timeout" : errno?.message || String(errno);
        return { ok: false, error: msg };
    } finally {
        if (t) clearTimeout(t);
    }
};

/* ============================================================
   UI: Table
============================================================ */
VOR.uiTable = function ({
    el,
    headers = [],
    data = [],
    sortable = true,
    emptyText = "No data",
    classArr = ["table"],
    editRenderer = null,
} = {}) {
    const container = typeof el === "string" ? document.querySelector(el) : el;
    if (!container) return;

    VOR.clearHtml(container);

    const table = VOR.createEl("table", classArr);
    const thead = VOR.createEl("thead");
    const tbody = VOR.createEl("tbody");

    let sortState = { key: null, dir: "asc" };
    let openEditorRow = null;

    function closeEditor() {
        if (openEditorRow) {
            openEditorRow.remove();
            openEditorRow = null;
        }
    }

    function sortData(rows) {
        if (!sortable || !sortState.key) return rows;

        return [...rows].sort((a, b) => {
            const v1 = a[sortState.key];
            const v2 = b[sortState.key];

            if (v1 === v2) return 0;
            if (v1 == null) return 1;
            if (v2 == null) return -1;

            if (typeof v1 === "number" && typeof v2 === "number") {
                return sortState.dir === "asc" ? v1 - v2 : v2 - v1;
            }

            return sortState.dir === "asc"
                ? String(v1).localeCompare(String(v2))
                : String(v2).localeCompare(String(v1));
        });
    }

    function expandRow(tr, rowData) {
        if (openEditorRow && openEditorRow.previousSibling === tr) {
            closeEditor();
            return;
        }

        closeEditor();

        if (typeof editRenderer !== "function") return;

        const editorTr = VOR.createEl("tr", ["row-editor"]);
        const td = VOR.createEl("td", null, null, { colspan: headers.length });

        const content = editRenderer(rowData);
        if (content instanceof HTMLElement) td.append(content);

        editorTr.append(td);
        tr.after(editorTr);
        openEditorRow = editorTr;
    }

    function renderBody(rows) {
        VOR.clearHtml(tbody);
        closeEditor();

        if (!rows.length) {
            const tr = VOR.createEl("tr");
            const td = VOR.createEl("td", ["empty"], emptyText, {
                colspan: headers.length,
            });
            tr.append(td);
            tbody.append(tr);
            return;
        }

        rows.forEach((row) => {
            const tr = VOR.createEl("tr");

            headers.forEach((h) => {
                const td = VOR.createEl("td");
                const value = row[h.key];

                if (h.action) {
                    const btn = VOR.createEl(
                        "button",
                        ["table-action", `is-${h.action}`],
                        h.format && typeof h.format === "function"
                            ? h.format(value, row)
                            : value ?? ""
                    );

                    btn.addEventListener("click", (e) => {
                        e.stopPropagation();

                        switch (h.action) {
                            case "visit":
                                if (h.actionConfig?.url) {
                                    const url = h.actionConfig.url(row);
                                    if (url) window.location.href = url;
                                }
                                break;

                            case "toggle":
                                if (h.actionConfig?.selector) {
                                    const sel = h.actionConfig.selector(row);
                                    if (sel) VOR.uiToggle(sel, true);
                                }
                                break;

                            case "edit-expand":
                                expandRow(tr, row);
                                break;
                        }
                    });

                    td.append(btn);
                } else {
                    const text =
                        h.format && typeof h.format === "function"
                            ? h.format(value, row)
                            : value ?? "";
                    td.append(document.createTextNode(text));
                }

                tr.append(td);
            });

            tbody.append(tr);
        });
    }

    function renderHeader() {
        const tr = VOR.createEl("tr");

        headers.forEach((h) => {
            const th = VOR.createEl(
                "th",
                sortable && h.sortable !== false ? ["sortable"] : null,
                h.label
            );

            if (sortable && h.sortable !== false) {
                th.addEventListener("click", () => {
                    closeEditor();

                    if (sortState.key === h.key) {
                        sortState.dir = sortState.dir === "asc" ? "desc" : "asc";
                    } else {
                        sortState.key = h.key;
                        sortState.dir = "asc";
                    }

                    renderBody(sortData(data));
                });
            }

            tr.append(th);
        });

        thead.append(tr);
    }

    renderHeader();
    renderBody(data);

    table.append(thead, tbody);
    container.append(table);
};

/* ============================================================
   State Store
============================================================ */
VOR.state = (function () {
    const store = {};

    return {
        set(key, value) {
            store[key] = value;
        },
        get(key) {
            return store[key];
        },
        update(key, fn) {
            if (typeof fn === "function") {
                store[key] = fn(store[key]);
            }
        },
        remove(key) {
            delete store[key];
        },
    };
})();

/* ============================================================
   UI: Alerts / Confirm / Form / Dropdown / Pagination / Badge
============================================================ */
VOR.uiAlert = function (message, type = "info", timeout = 4000) {
    let container = document.querySelector(".vor-alert-stack");
    if (!container) {
        container = VOR.createEl("div", ["vor-alert-stack"]);
        document.body.append(container);
    }

    const alert = VOR.createEl("div", ["vor-alert", `is-${type}`]);
    alert.append(document.createTextNode(message));

    container.append(alert);

    setTimeout(() => {
        alert.remove();
        if (!container.children.length) container.remove();
    }, timeout);
};

VOR.uiConfirm = function ({
    title = "Confirm",
    text = "",
    confirmLabel = "Confirm",
    cancelLabel = "Cancel",
    onConfirm = null,
} = {}) {
    const overlay = VOR.createEl("div", ["modal-overlay", "is-active"]);
    overlay.setAttribute("aria-hidden", "false");

    const content = VOR.createEl("div", ["modal-content", "vor-modal-sm"]);

    const header = VOR.createEl("div", ["modal-header"]);
    const titleEl = VOR.createEl("h3", ["modal-title"], title);
    const closeBtn = VOR.createEl("button", ["btn-close"], "×", {
        type: "button",
        "aria-label": "Close"
    });

    closeBtn.addEventListener("click", () => {
        overlay.remove();
        document.body.classList.remove("lock-scroll");
    });

    header.append(titleEl, closeBtn);

    const body = VOR.createEl("div", ["modal-body"]);
    body.append(VOR.createEl("p", null, text));

    const footer = VOR.createEl("div", ["modal-footer"]);

    const cancelBtn = VOR.createEl("button", ["btn-gray-light"], cancelLabel, {
        type: "button"
    });

    const confirmBtn = VOR.createEl("button", ["btn-red"], confirmLabel, {
        type: "button"
    });

    cancelBtn.addEventListener("click", () => {
        overlay.remove();
        document.body.classList.remove("lock-scroll");
    });

    confirmBtn.addEventListener("click", () => {
        if (typeof onConfirm === "function") onConfirm();
        overlay.remove();
        document.body.classList.remove("lock-scroll");
    });

    footer.append(cancelBtn, confirmBtn);
    content.append(header, body, footer);
    overlay.append(content);
    document.body.append(overlay);
    document.body.classList.add("lock-scroll");
};

VOR.uiForm = function ({ fields = [], actions = [] } = {}) {
    const form = VOR.createEl("form", ["vor-form"]);

    fields.forEach((f) => {
        const group = VOR.createEl("div", ["form-group"]);

        if (f.label) {
            group.append(VOR.createEl("label", null, f.label));
        }

        const input = VOR.createInput({
            type: f.type || "text",
            name: f.name,
            value: f.value ?? null,
            options: f.options ?? null,
            classArr: ["input"],
        });

        group.append(input);
        form.append(group);
    });

    if (actions.length) {
        const actionWrap = VOR.createEl("div", ["form-actions"]);

        actions.forEach((a) => {
            const btn = VOR.createEl(
                "button",
                ["btn", a.variant ? `is-${a.variant}` : null].filter(Boolean),
                a.label,
                { type: a.type || "button" }
            );

            if (a.onClick) btn.addEventListener("click", a.onClick);
            actionWrap.append(btn);
        });

        form.append(actionWrap);
    }

    return form;
};

VOR.uiDropdown = function ({ trigger, items = [] } = {}) {
    const menu = VOR.createEl("div", ["vor-dropdown"]);

    items.forEach((i) => {
        const item = VOR.createEl("div", ["dropdown-item"], i.label);

        item.addEventListener("click", () => {
            if (typeof i.action === "function") i.action();
            menu.remove();
        });

        menu.append(item);
    });

    document.body.append(menu);

    const rect = trigger.getBoundingClientRect();
    menu.style.position = "absolute";
    menu.style.top = `${rect.bottom + window.scrollY}px`;
    menu.style.left = `${rect.left + window.scrollX}px`;

    document.addEventListener("click", () => menu.remove(), { once: true });
};

VOR.uiPagination = function ({ page = 1, totalPages = 1, onChange = null } = {}) {
    const wrap = VOR.createEl("div", ["vor-pagination"]);

    for (let i = 1; i <= totalPages; i++) {
        const btn = VOR.createEl(
            "button",
            ["page-btn", i === page ? "is-active" : null].filter(Boolean),
            i
        );

        btn.addEventListener("click", () => {
            if (typeof onChange === "function") onChange(i);
        });

        wrap.append(btn);
    }

    return wrap;
};

VOR.uiBadge = function (text, type = "neutral") {
    return VOR.createEl("span", ["badge", `is-${type}`], text);
};

/* ============================================================
   UI: Loading / Field Errors / Empty State
============================================================ */
VOR.uiLoader = function (el, state = true) {
    if (!el) return;

    if (state) {
        el.dataset.originalText = el.textContent;
        el.textContent = "Loading...";
        el.disabled = true;
    } else {
        el.textContent = el.dataset.originalText || "";
        el.disabled = false;
    }
};

VOR.uiFieldError = function (formEl, errors = {}) {
    if (!formEl) return;

    formEl.querySelectorAll(".field-error").forEach((e) => e.remove());

    Object.entries(errors).forEach(([name, msg]) => {
        const field = formEl.querySelector(`[name="${name}"]`);
        if (!field) return;

        const err = VOR.createEl("div", ["field-error"], msg);
        field.closest(".form-group")?.append(err);
    });
};

VOR.uiEmpty = function ({ title = "", text = "", action = null } = {}) {
    const wrap = VOR.createEl("div", ["vor-empty"]);

    if (title) wrap.append(VOR.createEl("h3", null, title));
    if (text) wrap.append(VOR.createEl("p", null, text));

    if (action) {
        const btn = VOR.createEl("button", ["btn"], action.label);
        btn.addEventListener("click", action.onClick);
        wrap.append(btn);
    }

    return wrap;
};

/* ============================================================
   DOM Helpers
============================================================ */
VOR.createEl = function (tag, classArr = null, text = null, attrs = null) {
    const el = document.createElement(tag);

    if (text !== null && text !== undefined) {
        el.append(document.createTextNode(String(text)));
    }

    if (classArr?.length) {
        el.classList.add(...classArr);
    }

    if (attrs) {
        for (const [k, v] of Object.entries(attrs)) {
            if (v === null || v === undefined) continue;

            if (k.startsWith("data-")) {
                el.setAttribute(k, String(v));
            } else if (k.startsWith("on") && typeof v === "function") {
                el.addEventListener(k.slice(2), v);
            } else if (k in el) {
                el[k] = v;
            } else {
                el.setAttribute(k, String(v));
            }
        }
    }

    return el;
};

VOR.createInput = function ({
    type = "text",
    classArr = null,
    placeholder = "",
    options = null,
    name,
    id = null,
    dataset = null,
    value = null,
} = {}) {
    if (!name) {
        throw new Error("Create input: Name is required");
    }

    const el =
        type === "select" ? VOR.createEl("select", classArr) : VOR.createEl("input", classArr);

    el.name = name;

    if (id) el.id = id;

    if (dataset) {
        for (const [k, v] of Object.entries(dataset)) {
            if (v !== undefined && v !== null) el.dataset[k] = String(v);
        }
    }

    if (type !== "select") {
        el.type = type;

        if (placeholder && !["checkbox", "radio", "hidden"].includes(type)) {
            el.placeholder = placeholder;
        }

        if (["checkbox", "radio"].includes(type)) {
            if (value === true) {
                el.checked = true;
            } else if (value !== null && value !== undefined) {
                el.value = String(value);
            }
        } else if (value !== null && value !== undefined) {
            el.value = String(value);
        }
    } else if (options) {
        for (const [val, txt] of Object.entries(options)) {
            const opt = document.createElement("option");
            opt.value = String(val);
            opt.textContent = String(txt);

            if (value !== null && value !== undefined && String(val) === String(value)) {
                opt.selected = true;
            }

            el.appendChild(opt);
        }
    }

    return el;
};

VOR.clearHtml = function (el) {
    if (!el) return el;
    el.replaceChildren();
    return el;
};

VOR.getDefaultId = function () {
    const id = window.location.pathname.replace(/\/$/, "").split("/").pop();
    const num = parseInt(id, 10);
    return Number.isFinite(num) ? num : null;
};

VOR.getRandomId = function () {
    return crypto?.randomUUID ? crypto.randomUUID() : Math.random().toString(36).slice(2);
};

VOR.prettyNum = function (
    val,
    { type = "decimal", locale = VOR.locale, currency = VOR.currency } = {}
) {
    if (val === null || val === undefined || val === "") return "";

    const opts = { style: type };
    if (type === "currency") opts.currency = currency;

    const n = typeof val === "string" ? Number(val) : val;
    return new Intl.NumberFormat(locale, opts).format(n);
};

/* ============================================================
   Theme / Modals / Toggles
============================================================ */
VOR.uiGetTheme = function () {
    const t = document.documentElement.getAttribute("data-theme");
    return t === "dark" || t === "light" ? t : "light";
};

VOR.uiSetTheme = function (theme = "light") {
    const next = theme === "dark" ? "dark" : "light";
    document.documentElement.setAttribute("data-theme", next);
    localStorage.setItem("vor_theme", next);
};

VOR.uiToggleTheme = function () {
    const next = VOR.uiGetTheme() === "dark" ? "light" : "dark";
    VOR.uiSetTheme(next);
};

VOR.uiCloseAllModals = function () {
    document.querySelectorAll(".modal-overlay.is-active").forEach((m) => {
        m.classList.remove("is-active");
        m.setAttribute("aria-hidden", "true");
    });
    document.body.classList.remove("lock-scroll");
};

VOR.uiToggle = function (selector, forceState = null) {
    const el = document.querySelector(selector);
    if (!el) return;

    const isDrawer = el.classList.contains("drawer");
    const isModal = el.classList.contains("modal-overlay");

    const activeClass = isDrawer ? "is-open" : "is-active";

    const nextState = forceState !== null ? !!forceState : !el.classList.contains(activeClass);

    el.classList.toggle(activeClass, nextState);
    el.setAttribute("aria-hidden", nextState ? "false" : "true");

    if (isModal) {
        document.body.classList.toggle("lock-scroll", nextState);
    }
};

/* ============================================================
   Global Event Wiring
============================================================ */
VOR.initGlobalEvents = function () {
    const app = document.body;

    app.addEventListener("click", (e) => {
        const toggleBtn = e.target.closest("[data-toggle]");
        if (toggleBtn) {
            const sel = toggleBtn.dataset.toggle;
            if (sel) VOR.uiToggle(sel);
            return;
        }

        const themeBtn = e.target.closest("[data-theme-toggle]");
        if (themeBtn) {
            const v = (themeBtn.dataset.themeToggle || "").trim();
            if (v === "light" || v === "dark") {
                VOR.uiSetTheme(v);
            } else {
                VOR.uiToggleTheme();
            }
            return;
        }

        const accordionHeader = e.target.closest(".accordion-header");
        if (accordionHeader) {
            const item = accordionHeader.closest(".accordion-item");
            if (item) item.classList.toggle("is-active");
            return;
        }

        const chip = e.target.closest("[data-chip]");
        if (chip) {
            const scope = chip.parentElement || document;
            scope
                .querySelectorAll("[data-chip].is-active")
                .forEach((c) => c.classList.remove("is-active"));
            chip.classList.add("is-active");
            return;
        }

        const modalOverlay = e.target.closest(".modal-overlay");
        if (modalOverlay && modalOverlay.classList.contains("is-active")) {
            if (e.target.closest(".modal-content")) return;

            modalOverlay.classList.remove("is-active");
            modalOverlay.setAttribute("aria-hidden", "true");
            document.body.classList.remove("lock-scroll");
            return;
        }

        const drawerModal = e.target.closest(".drawer-modal");
        if (drawerModal && drawerModal.classList.contains("is-active")) {
            if (e.target.closest(".drawer-panel")) return;
            if (drawerModal.dataset.closeBackdrop === "0") return;

            VOR.uiDrawerModalClose(drawerModal);
            return;
        }
    });

    document.addEventListener("keydown", (e) => {
        if (e.key !== "Escape") return;

        const openModal = document.querySelector(".modal-overlay.is-active");
        if (openModal) {
            openModal.classList.remove("is-active");
            openModal.setAttribute("aria-hidden", "true");
            if (!document.querySelector(".modal-overlay.is-active, .drawer-modal.is-active")) {
                document.body.classList.remove("lock-scroll");
            }
            return;
        }

        const openDrawerModal = document.querySelector(".drawer-modal.is-active");
        if (openDrawerModal) {
            if (openDrawerModal.dataset.closeEsc === "0") return;
            VOR.uiDrawerModalClose(openDrawerModal);
            return;
        }

        const openDrawer = document.querySelector(".drawer.is-open");
        if (openDrawer) {
            openDrawer.classList.remove("is-open");
            openDrawer.setAttribute("aria-hidden", "true");
        }

    });
};

/* ============================================================
   UI: Drawer Modal (off-canvas modal)
============================================================ */
VOR.uiDrawerModalOpen = function ({
    id = "vor-drawer-modal",
    title = "",
    content = null,
    side = "right",
    width = null,
    onClose = null,
    closeOnBackdrop = true,
    closeOnEsc = true,
    showHeader = true,
    showFooter = false,
    footer = null,
} = {}) {

    const existing = document.getElementById(id);
    if (existing) existing.remove();

    const overlay = VOR.createEl("div", ["drawer-modal"], null, {
        id,
        "data-modal-type": "drawer",
        "data-close-backdrop": closeOnBackdrop ? "1" : "0",
        "data-close-esc": closeOnEsc ? "1" : "0",
    });

    if (side === "left") overlay.classList.add("is-left");

    const panel = VOR.createEl("div", ["drawer-panel"]);
    if (width) panel.style.width = String(width);

    if (showHeader) {
        const header = VOR.createEl("div", ["drawer-panel-header"]);

        const h = VOR.createEl("div");
        if (title) h.append(VOR.createEl("div", ["h5"], title));

        const closeBtn = VOR.createEl("button", ["btn-close"], "×", {
            type: "button",
            "aria-label": "Close",
            "data-drawer-close": "1",
        });

        header.append(h, closeBtn);
        panel.append(header);
    }

    const body = VOR.createEl("div", ["drawer-panel-body"]);

    if (content instanceof HTMLElement) {
        body.append(content);
    } else if (typeof content === "string") {
        body.innerHTML = content;
    } else {
    }

    panel.append(body);

    if (showFooter) {
        const foot = VOR.createEl("div", ["drawer-panel-footer"]);
        if (footer instanceof HTMLElement) foot.append(footer);
        else if (typeof footer === "string") foot.innerHTML = footer;
        panel.append(foot);
    }

    overlay.append(panel);
    document.body.append(overlay);
    document.body.classList.add("lock-scroll");

    requestAnimationFrame(() => {
        overlay.classList.add("is-active");
    });

    overlay.addEventListener("click", (e) => {
        if (e.target.closest("[data-drawer-close]")) {
            VOR.uiDrawerModalClose(id, onClose);
        }
    });

    overlay.__vorOnClose = typeof onClose === "function" ? onClose : null;

    setTimeout(() => {
        const focusable = panel.querySelector(
            'button, [href], input, select, textarea, [tabindex]:not([tabindex="-1"])'
        );
        focusable?.focus?.();
    }, 0);

    return { overlay, panel, body };
};

VOR.uiDrawerModalClose = function (id = "vor-drawer-modal", onClose = null) {
    const overlay = typeof id === "string" ? document.getElementById(id) : id;
    if (!overlay) return;


    overlay.classList.remove("is-active");

    const cb = typeof onClose === "function" ? onClose : overlay.__vorOnClose;

    setTimeout(() => {
        overlay.remove();
        if (!document.querySelector(".modal-overlay.is-active, .drawer-modal.is-active")) {
            document.body.classList.remove("lock-scroll");
        }
        if (typeof cb === "function") cb();
    }, 180);
};

/* ============================================================
   Boot
============================================================ */
document.addEventListener("DOMContentLoaded", () => {
    const savedTheme = localStorage.getItem("vor_theme");
    VOR.uiSetTheme(savedTheme === "dark" ? "dark" : "light");
    VOR.initGlobalEvents();
});