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(function () { |
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'use strict'; |
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|
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function fmtMoney(val, currency, pos) { |
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var s = Math.abs(val).toLocaleString('en-US', { minimumFractionDigits: 2, maximumFractionDigits: 2 }); |
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return pos === 'after' ? s + currency : currency + s; |
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} |
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|
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function buildApp(app) { |
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var opts = {}; |
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try { opts = JSON.parse(app.dataset.opts || '{}'); } catch (e) {} |
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|
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var bill = opts.defaultBill || 50; |
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var tipPct = opts.defaultTip || 15; |
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var customTip = ''; |
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var people = opts.defaultPeople || 2; |
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var currency = opts.currency || '$'; |
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var pos = opts.currencyPos || 'before'; |
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var quickTips = opts.quickTips && opts.quickTips.length ? opts.quickTips : [10, 15, 18, 20, 25]; |
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|
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var accent = opts.accentColor || '#6c3fb5'; |
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var actBg = opts.activeBtnBg || accent; |
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var actCol = opts.activeBtnColor || '#ffffff'; |
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var inBg = opts.quickBtnBg || '#f3f4f6'; |
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var inCol = opts.quickBtnColor || '#374151'; |
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var cardBg = opts.cardBg || '#ffffff'; |
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var resultBg = opts.resultBg || '#f5f3ff'; |
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var resultBdr = opts.resultBorder || '#ede9fe'; |
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var resultCol = opts.resultNumColor || accent; |
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var labelColor = opts.labelColor || '#374151'; |
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var titleColor = opts.titleColor || '#1e1b4b'; |
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var subColor = opts.subtitleColor || '#6b7280'; |
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var cRadius = (opts.cardRadius || 16) + 'px'; |
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var btnR = (opts.btnRadius || 8) + 'px'; |
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var maxW = (opts.maxWidth || 520) + 'px'; |
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var ptop = (opts.paddingTop || 60) + 'px'; |
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var pbot = (opts.paddingBottom || 60) + 'px'; |
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|
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|
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/* Build card */ |
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app.innerHTML = ''; |
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var card = document.createElement('div'); |
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card.className = 'bkbg-tc-card'; |
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card.style.cssText = 'background:' + cardBg + ';border-radius:' + cRadius + ';padding:32px;box-shadow:0 4px 24px rgba(0,0,0,0.08);max-width:' + maxW + ';margin:0 auto;padding-top:' + ptop + ';padding-bottom:' + pbot + ';box-sizing:border-box;'; |
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app.appendChild(card); |
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|
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if (opts.showTitle !== false && opts.title) { |
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var titleEl = document.createElement('h2'); |
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titleEl.className = 'bkbg-tc-title'; |
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titleEl.textContent = opts.title; |
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titleEl.style.cssText = 'color:' + titleColor + ';'; |
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card.appendChild(titleEl); |
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} |
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if (opts.showSubtitle !== false && opts.subtitle) { |
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var subEl = document.createElement('p'); |
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subEl.className = 'bkbg-tc-subtitle'; |
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subEl.textContent = opts.subtitle; |
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subEl.style.color = subColor; |
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card.appendChild(subEl); |
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} |
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|
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/* Bill input */ |
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var billField = document.createElement('div'); billField.className = 'bkbg-tc-field'; |
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var billLabel = document.createElement('label'); billLabel.className = 'bkbg-tc-label'; billLabel.textContent = 'Bill Amount'; billLabel.style.color = labelColor; |
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var billWrap = document.createElement('div'); billWrap.className = 'bkbg-tc-input-wrap'; |
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var billPrefix = document.createElement('span'); billPrefix.className = 'bkbg-tc-prefix'; billPrefix.textContent = pos === 'before' ? currency : ''; |
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var billInp = document.createElement('input'); |
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billInp.type = 'number'; billInp.className = 'bkbg-tc-input' + (pos === 'before' ? ' with-prefix' : ''); billInp.value = bill; billInp.min = 0; billInp.step = '0.01'; |
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billInp.style.accentColor = accent; |
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billWrap.appendChild(billPrefix); billWrap.appendChild(billInp); |
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billField.appendChild(billLabel); billField.appendChild(billWrap); |
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card.appendChild(billField); |
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|
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/* Quick tip buttons */ |
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var tipField = document.createElement('div'); tipField.className = 'bkbg-tc-field'; |
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var tipLabel = document.createElement('label'); tipLabel.className = 'bkbg-tc-label'; tipLabel.textContent = 'Tip Percentage'; tipLabel.style.color = labelColor; |
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var tipsRow = document.createElement('div'); tipsRow.className = 'bkbg-tc-tips'; |
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|
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var tipBtns = []; |
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quickTips.forEach(function(pct) { |
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var btn = document.createElement('button'); |
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btn.className = 'bkbg-tc-tip-btn'; |
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btn.textContent = pct + '%'; |
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btn.dataset.pct = pct; |
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btn.style.borderRadius = btnR; |
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tipsRow.appendChild(btn); |
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tipBtns.push(btn); |
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}); |
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|
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var customInp = null; |
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if (opts.allowCustomTip !== false) { |
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customInp = document.createElement('input'); |
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customInp.type = 'number'; customInp.className = 'bkbg-tc-custom-tip'; |
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customInp.placeholder = 'Custom %'; customInp.min = 0; customInp.max = 100; |
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customInp.style.borderRadius = btnR; |
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tipsRow.appendChild(customInp); |
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} |
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|
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tipField.appendChild(tipLabel); tipField.appendChild(tipsRow); |
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card.appendChild(tipField); |
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|
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function updateTipBtns() { |
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tipBtns.forEach(function(btn) { |
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var isActive = customTip === '' && parseInt(btn.dataset.pct) === tipPct; |
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btn.style.background = isActive ? actBg : inBg; |
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btn.style.color = isActive ? actCol: inCol; |
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}); |
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if (customInp) { |
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customInp.style.borderColor = customTip !== '' ? accent : '#e5e7eb'; |
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} |
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} |
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updateTipBtns(); |
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|
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/* People splitter */ |
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var peopleField = null; |
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var peopleNum = null; |
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if (opts.showSplitter !== false) { |
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peopleField = document.createElement('div'); peopleField.className = 'bkbg-tc-field'; |
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var pLabel = document.createElement('label'); pLabel.className = 'bkbg-tc-label'; pLabel.textContent = 'Number of People'; pLabel.style.color = labelColor; |
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var pRow = document.createElement('div'); pRow.className = 'bkbg-tc-people-row'; |
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var minusBtn = document.createElement('button'); minusBtn.className = 'bkbg-tc-count-btn'; minusBtn.textContent = '−'; minusBtn.style.cssText = 'color:' + accent + ';border-color:' + accent + ';'; |
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peopleNum = document.createElement('span'); peopleNum.className = 'bkbg-tc-count-num'; peopleNum.textContent = people; peopleNum.style.color = titleColor; |
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var plusBtn = document.createElement('button'); plusBtn.className = 'bkbg-tc-count-btn plus'; plusBtn.textContent = '+'; plusBtn.style.cssText = 'color:#fff;background:' + accent + ';border-color:' + accent + ';'; |
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pRow.appendChild(minusBtn); pRow.appendChild(peopleNum); pRow.appendChild(plusBtn); |
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peopleField.appendChild(pLabel); peopleField.appendChild(pRow); |
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card.appendChild(peopleField); |
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|
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minusBtn.addEventListener('click', function() { people = Math.max(1, people - 1); peopleNum.textContent = people; update(); }); |
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plusBtn.addEventListener('click', function() { people++; peopleNum.textContent = people; update(); }); |
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} |
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|
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/* Results */ |
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var cols = 0; |
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if (opts.showTipAmount !== false) cols++; |
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if (opts.showTotal !== false) cols++; |
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var resultsBox = document.createElement('div'); |
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resultsBox.className = 'bkbg-tc-results'; |
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resultsBox.style.cssText = 'background:' + resultBg + ';border:1.5px solid ' + resultBdr + ';border-radius:' + cRadius + ';grid-template-columns:' + (cols > 1 ? '1fr 1fr' : '1fr') + ';'; |
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card.appendChild(resultsBox); |
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|
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var tipAmtEl = null, totalEl = null, perPersonEl = null; |
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|
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if (opts.showTipAmount !== false) { |
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var tipAmtBox = document.createElement('div'); tipAmtBox.className = 'bkbg-tc-result-item'; |
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var tipAmtLbl = document.createElement('div'); tipAmtLbl.className = 'bkbg-tc-result-label'; tipAmtLbl.textContent = 'Tip Amount'; |
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tipAmtEl = document.createElement('div'); tipAmtEl.className = 'bkbg-tc-result-value'; tipAmtEl.style.cssText = 'font-size:28px;color:' + accent + ';'; |
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tipAmtBox.appendChild(tipAmtLbl); tipAmtBox.appendChild(tipAmtEl); |
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resultsBox.appendChild(tipAmtBox); |
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} |
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|
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if (opts.showTotal !== false) { |
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var totalBox = document.createElement('div'); totalBox.className = 'bkbg-tc-result-item'; |
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var totalLbl = document.createElement('div'); totalLbl.className = 'bkbg-tc-result-label'; totalLbl.textContent = 'Total'; |
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totalEl = document.createElement('div'); totalEl.className = 'bkbg-tc-result-value'; totalEl.style.cssText = 'font-size:28px;color:' + titleColor + ';'; |
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totalBox.appendChild(totalLbl); totalBox.appendChild(totalEl); |
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resultsBox.appendChild(totalBox); |
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} |
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|
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if (opts.showSplitter !== false && opts.showPerPerson !== false) { |
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var ppBox = document.createElement('div'); ppBox.className = 'bkbg-tc-result-item bkbg-tc-per-person'; |
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ppBox.style.borderTopColor = resultBdr; |
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var ppLbl = document.createElement('div'); ppLbl.className = 'bkbg-tc-result-label'; ppLbl.textContent = 'Per Person'; |
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perPersonEl = document.createElement('div'); perPersonEl.className = 'bkbg-tc-result-value bkbg-tc-per-person-value'; perPersonEl.style.cssText = 'color:' + resultCol + ';'; |
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ppBox.appendChild(ppLbl); ppBox.appendChild(perPersonEl); |
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resultsBox.appendChild(ppBox); |
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} |
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|
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/* Compute & update */ |
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function update() { |
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var eff = customTip !== '' ? parseFloat(customTip) : tipPct; |
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if (isNaN(eff)) eff = 0; |
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var tipAmt = bill * eff / 100; |
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var total = bill + tipAmt; |
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var perPerson = people > 0 ? total / people : total; |
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if (tipAmtEl) tipAmtEl.textContent = fmtMoney(tipAmt, currency, pos); |
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if (totalEl) totalEl.textContent = fmtMoney(total, currency, pos); |
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if (perPersonEl) perPersonEl.textContent = fmtMoney(perPerson, currency, pos); |
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} |
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update(); |
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|
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/* Events */ |
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billInp.addEventListener('input', function() { bill = parseFloat(this.value) || 0; update(); }); |
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|
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tipsRow.addEventListener('click', function(e) { |
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var btn = e.target.closest('.bkbg-tc-tip-btn'); |
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if (!btn) return; |
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tipPct = parseInt(btn.dataset.pct); |
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customTip = ''; |
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if (customInp) customInp.value = ''; |
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updateTipBtns(); |
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update(); |
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}); |
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|
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if (customInp) { |
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customInp.addEventListener('input', function() { |
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customTip = this.value; |
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updateTipBtns(); |
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update(); |
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}); |
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} |
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} |
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|
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document.querySelectorAll('.bkbg-tc-app').forEach(buildApp); |
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})(); |
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