{
  "version": 3,
  "sources": ["/cdn/shop/t/33/assets/auto-gift.js?nocache=1792179021142"],
  "sourcesContent": ["/*\n * Auto Gift\n * Adds/removes gift items for active \"Auto Gift Rule\" metaobjects.\n * Rules are output by snippets/auto-gift-rules.liquid as window.AUTO_GIFT_RULES.\n * The matching Buy X Get Y discount makes the gift free; this script only manages the cart line.\n * Debug: run `window.AUTO_GIFT_DEBUG = true` in the console.\n */\n(function () {\n  'use strict';\n\n  var RULES = (window.AUTO_GIFT_RULES || []).filter(function (r) {\n    return r && r.gift && r.buy && r.buy.length;\n  });\n  if (!RULES.length || window.__autoGiftLoaded) return;\n  window.__autoGiftLoaded = true;\n\n  var PROP = 'Promo'; // shown to the shopper on the gift line, e.g. \"Promo: Free 12V Charger\"\n  var STATE_KEY = 'tbn_auto_gift_state';\n  var nativeFetch = window.fetch;\n  var syncing = false;\n  var pending = false;\n  var timer = null;\n  var lastCart = null;\n\n  function log() {\n    if (!window.AUTO_GIFT_DEBUG) return;\n    var args = Array.prototype.slice.call(arguments);\n    args.unshift('[Auto Gift]');\n    console.log.apply(console, args);\n  }\n\n  function readState() {\n    try { return JSON.parse(sessionStorage.getItem(STATE_KEY) || '{}'); } catch (e) { return {}; }\n  }\n\n  function writeState(state) {\n    try { sessionStorage.setItem(STATE_KEY, JSON.stringify(state)); } catch (e) {}\n  }\n\n  function request(url, body) {\n    var opts = { credentials: 'same-origin', headers: { 'Accept': 'application/json' } };\n    if (body) {\n      opts.method = 'POST';\n      opts.headers['Content-Type'] = 'application/json';\n      opts.body = JSON.stringify(body);\n    }\n    return nativeFetch.call(window, url, opts).then(function (res) {\n      if (!res.ok) throw new Error(url + ' ' + res.status);\n      return res.json();\n    });\n  }\n\n  function getCart() {\n    return request('/cart.js');\n  }\n\n  // Work out what each rule needs: add gifts, trim auto-added gifts, or nothing.\n  function plan(cart, state) {\n    var ops = [];\n    RULES.forEach(function (rule) {\n      var giftId = String(rule.gift);\n      var buySet = {};\n      rule.buy.forEach(function (id) { buySet[String(id)] = true; });\n\n      var qualifying = 0;\n      var giftUnits = 0;\n      var autoLines = [];\n      cart.items.forEach(function (item) {\n        var vid = String(item.variant_id);\n        if (vid === giftId) {\n          giftUnits += item.quantity;\n          if (item.properties && item.properties[PROP]) autoLines.push(item);\n        } else if (buySet[vid]) {\n          qualifying += item.quantity;\n        }\n      });\n\n      var autoUnits = autoLines.reduce(function (n, l) { return n + l.quantity; }, 0);\n      var target = qualifying * (parseInt(rule.per, 10) || 1);\n      var s = state[rule.handle] || {};\n\n      // Shopper removed/reduced an auto-added gift without changing qualifying items: respect it.\n      if (s.last && s.last.qualifying === qualifying && autoUnits < s.last.auto) {\n        s.declined = qualifying;\n      }\n      if (s.declined !== undefined && s.declined !== qualifying) delete s.declined;\n      var declined = s.declined !== undefined && qualifying > 0;\n\n      log(rule.handle, { qualifying: qualifying, target: target, giftUnits: giftUnits, autoUnits: autoUnits, declined: declined });\n\n      if (giftUnits < target && !declined) {\n        ops.push({ type: 'add', rule: rule, qty: target - giftUnits });\n        autoUnits += target - giftUnits;\n      } else if (giftUnits > target && autoUnits > 0) {\n        var excess = Math.min(giftUnits - target, autoUnits);\n        autoUnits -= excess;\n        for (var i = autoLines.length - 1; i >= 0 && excess > 0; i--) {\n          var take = Math.min(excess, autoLines[i].quantity);\n          ops.push({ type: 'change', key: autoLines[i].key, qty: autoLines[i].quantity - take });\n          excess -= take;\n        }\n      }\n\n      s.last = { qualifying: qualifying, auto: autoUnits };\n      state[rule.handle] = s;\n    });\n    return ops;\n  }\n\n  function runOps(ops) {\n    return ops.reduce(function (chain, op) {\n      return chain.then(function () {\n        if (op.type === 'add') {\n          var props = {};\n          props[PROP] = op.rule.title || op.rule.handle;\n          return request('/cart/add.js?auto_gift=1', { items: [{ id: op.rule.gift, quantity: op.qty, properties: props }] });\n        }\n        return request('/cart/change.js?auto_gift=1', { id: op.key, quantity: op.qty });\n      }).catch(function (e) {\n        console.warn('[Auto Gift]', e);\n        return null;\n      });\n    }, Promise.resolve(null));\n  }\n\n  function refreshUI(cart) {\n    if (/\\/cart\\/?$/.test(window.location.pathname)) {\n      window.location.reload();\n      return;\n    }\n    if (typeof window.refreshCart === 'function') {\n      try { window.refreshCart(cart); } catch (e) { log('refreshCart failed', e); }\n    }\n    document.dispatchEvent(new CustomEvent('cart:updated', { bubbles: true, detail: { cart: cart } }));\n  }\n\n  function isCart(obj) {\n    return obj && Array.isArray(obj.items) && obj.token !== undefined;\n  }\n\n  // cartIn: optional cart JSON we already have (e.g. from the theme's change.js response).\n  function sync(cartIn) {\n    if (syncing) { pending = true; return; }\n    syncing = true;\n    var state = readState();\n    (isCart(cartIn) ? Promise.resolve(cartIn) : getCart())\n      .then(function (cart) {\n        lastCart = cart;\n        var ops = plan(cart, state);\n        writeState(state);\n        if (!ops.length) return null;\n        return runOps(ops)\n          .then(function (res) { return isCart(res) ? res : getCart(); })\n          .then(function (updated) {\n            lastCart = updated;\n            // Re-baseline so our own change is not mistaken for the shopper's.\n            plan(updated, state);\n            writeState(state);\n            refreshUI(updated);\n          });\n      })\n      .catch(function (e) { console.warn('[Auto Gift]', e); })\n      .then(function () {\n        syncing = false;\n        if (pending) { pending = false; schedule(); }\n      });\n  }\n\n  function schedule() {\n    clearTimeout(timer);\n    timer = setTimeout(function () { sync(); }, 100);\n  }\n\n  function isCartMutation(url) {\n    url = String(url || '');\n    if (url.indexOf('auto_gift=1') !== -1) return false; // our own requests\n    return /\\/cart\\/(add|change|update|clear)(\\.js)?(\\?|$)/.test(url);\n  }\n\n  // Watch every network request (fetch, jQuery/XHR, any app) for cart changes.\n  // PerformanceObserver can't be overridden by other scripts that wrap fetch/XHR.\n  if ('PerformanceObserver' in window) {\n    try {\n      new PerformanceObserver(function (list) {\n        var hit = list.getEntries().some(function (e) { return isCartMutation(e.name); });\n        if (hit) schedule();\n      }).observe({ type: 'resource', buffered: false });\n    } catch (e) { log('observer unavailable', e); }\n  }\n\n  if (window.jQuery && window.jQuery.ajaxPrefilter) {\n    var $ = window.jQuery;\n\n    // Real time: when the theme adds a qualifying item (Turbo uses $.ajax + form data),\n    // add the gift in the same /cart/add.js request so both appear together.\n    $.ajaxPrefilter(function (options) {\n      try {\n        var url = String(options.url || '');\n        if (!/\\/cart\\/add(\\.js)?(\\?|$)/.test(url) || url.indexOf('auto_gift=1') !== -1) return;\n        if (typeof options.data !== 'string') return;\n        var params = new URLSearchParams(options.data);\n        var id = params.get('id');\n        if (!id || params.has('items[0][id]')) return;\n        var qty = parseInt(params.get('quantity') || '1', 10) || 1;\n\n        var extras = [];\n        RULES.forEach(function (rule) {\n          var match = rule.buy.some(function (b) { return String(b) === String(id); });\n          if (!match) return;\n          var giftQty = qty * (parseInt(rule.per, 10) || 1);\n          var stock = parseInt(rule.stock, 10);\n          if (!isNaN(stock) && stock >= 0) {\n            var inCart = 0;\n            if (lastCart) lastCart.items.forEach(function (it) { if (String(it.variant_id) === String(rule.gift)) inCart += it.quantity; });\n            if (inCart + giftQty > stock) return; // not enough stock: never block the main item; background sync handles it\n          }\n          extras.push({ rule: rule, qty: giftQty });\n        });\n        if (!extras.length) return;\n\n        var out = new URLSearchParams();\n        params.forEach(function (v, k) {\n          if (k === 'id' || k === 'quantity' || k === 'selling_plan') out.append('items[0][' + k + ']', v);\n          else if (k.indexOf('properties[') === 0) out.append('items[0][properties]' + k.slice(10), v);\n          else out.append(k, v);\n        });\n        extras.forEach(function (x, i) {\n          var n = i + 1;\n          out.append('items[' + n + '][id]', x.rule.gift);\n          out.append('items[' + n + '][quantity]', x.qty);\n          out.append('items[' + n + '][properties][' + PROP + ']', x.rule.title || x.rule.handle);\n        });\n        options.data = out.toString();\n        log('gift attached to add request', extras);\n      } catch (e) { log('prefilter skipped', e); }\n    });\n\n    // Faster removal: change/update responses already contain the cart, so reuse it.\n    $(document).ajaxSuccess(function (e, xhr, settings, data) {\n      if (isCartMutation(settings && settings.url) && isCart(data)) {\n        clearTimeout(timer);\n        sync(data);\n      }\n    });\n  }\n\n  // Cart forms that do a full page submit (e.g. update button) reload the page, and sync runs on load.\n\n  if (document.readyState === 'loading') {\n    document.addEventListener('DOMContentLoaded', sync);\n  } else {\n    sync();\n  }\n})();\n"],
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