// Delegated handlers extracted from inline on* attributes for CSP compliance.
// These are the named wrappers referenced by data-action / data-change /
// data-input / data-submit in the pages templates. The action dispatcher in
// the core module invokes each with `this` bound to the dispatching element, so the
// bodies read args from the element (this.value, this.dataset, this itself)
// exactly as the original inline handlers did.

// No-op verb: used where the original inline handler only stopped propagation
// (the data-stop modifier does the actual work; this satisfies the dispatcher's
// requirement for a data-action value).
window.noop = function () {};

// cart.html: onclick="removeCartGroup(this)"
window.onRemoveCartGroup = function () {
    removeCartGroup(this);
};

// discover.html: onclick="document.querySelector('.discover-sidebar').classList.toggle('show'); this.classList.toggle('active');"
window.toggleDiscoverFilters = function () {
    // The state lives on .discover-layout, not on the sidebar itself: the
    // sidebar is replaced wholesale by an out-of-band swap on every filter
    // change, which would drop a class set on it and snap the mobile panel
    // shut mid-interaction.
    var layout = document.querySelector('.discover-layout');
    if (!layout) return;
    var open = layout.classList.toggle('filters-open');
    this.classList.toggle('active', open);
    this.setAttribute('aria-expanded', open ? 'true' : 'false');
};

// index.html: onsubmit="return submitNotify(event)" (data-submit auto-prevents;
// submitNotify only uses the event for preventDefault).
window.onNotifySubmit = function () {
    submitNotify({ preventDefault: function () {} });
};

// item.html: onclick="openCollectionPicker('{{ item.id }}', this)"
window.onOpenCollectionPicker = function () {
    openCollectionPicker(this.getAttribute('data-arg'), this);
};

// item.html / library_downloads.html / project.html:
// onclick="switchSectionTab(this, 'section-{{ section.slug }}')"
window.onSwitchSectionTab = function () {
    switchSectionTab(this, this.getAttribute('data-arg'));
};

// library.html: onclick="setActiveTab(this)"
window.onSetActiveTab = function () {
    setActiveTab(this);
};

// purchase.html: oninput="updatePwywButton(this.value)"
window.onPwywInput = function () {
    updatePwywButton(this.value);
};

// purchase.html: onclick="fetch('/api/cart/{{ item.id }}',{...}).then(...);return false;"
window.onAddToCartLink = function () {
    fetch('/api/cart/' + this.getAttribute('data-arg'), {method:'POST',headers:csrfHeaders()}).then(function(r){if(!r.ok)throw new Error('Failed');return r.json()}).then(function(){window.location.href='/cart'}).catch(function(){alert('Could not add to cart. Please try again.')});
};

// purchase.html: onclick="window.history.back()"
window.historyBack = function () {
    window.history.back();
};

// receipt.html: onclick="window.print()"
window.printPage = function () {
    window.print();
};