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(function () { |
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'use strict'; |
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|
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var _typoKeys = { |
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family:'font-family', weight:'font-weight', style:'font-style', |
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decoration:'text-decoration', transform:'text-transform', |
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sizeDesktop:'font-size-d', sizeTablet:'font-size-t', sizeMobile:'font-size-m', |
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lineHeightDesktop:'line-height-d', lineHeightTablet:'line-height-t', lineHeightMobile:'line-height-m', |
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letterSpacingDesktop:'letter-spacing-d', letterSpacingTablet:'letter-spacing-t', letterSpacingMobile:'letter-spacing-m', |
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wordSpacingDesktop:'word-spacing-d', wordSpacingTablet:'word-spacing-t', wordSpacingMobile:'word-spacing-m' |
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}; |
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function typoCssVarsForEl(el, obj, prefix) { |
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if (!obj || typeof obj !== 'object') return; |
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Object.keys(_typoKeys).forEach(function (k) { |
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var v = obj[k]; |
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if (v === undefined || v === '' || v === null) return; |
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if (k === 'sizeDesktop' || k === 'sizeTablet' || k === 'sizeMobile') v = v + (obj.sizeUnit || 'px'); |
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else if (k === 'lineHeightDesktop' || k === 'lineHeightTablet' || k === 'lineHeightMobile') v = v + (obj.lineHeightUnit || ''); |
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else if (k === 'letterSpacingDesktop' || k === 'letterSpacingTablet' || k === 'letterSpacingMobile') v = v + (obj.letterSpacingUnit || 'px'); |
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else if (k === 'wordSpacingDesktop' || k === 'wordSpacingTablet' || k === 'wordSpacingMobile') v = v + (obj.wordSpacingUnit || 'px'); |
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el.style.setProperty(prefix + _typoKeys[k], String(v)); |
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}); |
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} |
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|
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function calcROI(investment, returned, years) { |
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var netProfit = returned - investment; |
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var roi = investment > 0 ? (netProfit / investment) * 100 : 0; |
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var annualized = investment > 0 && years > 0 && returned > 0 |
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? (Math.pow(returned / investment, 1 / years) - 1) * 100 |
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: 0; |
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var payback = netProfit > 0 && years > 0 |
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? investment / (netProfit / years) |
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: null; |
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return { netProfit: netProfit, roi: roi, annualized: annualized, payback: payback }; |
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} |
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|
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function fmt(n, cur) { |
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var abs = Math.abs(n); |
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return (n < 0 ? '-' : '') + cur + abs.toLocaleString('en-US', {minimumFractionDigits:0, maximumFractionDigits:0}); |
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} |
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function fmtPct(n) { return (n >= 0 ? '+' : '') + n.toFixed(2) + '%'; } |
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|
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function initROI(app) { |
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var opts; |
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try { opts = JSON.parse(app.getAttribute('data-opts') || '{}'); } catch(e) { opts = {}; } |
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|
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var accent = opts.accentColor || '#6c3fb5'; |
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var cardBg = opts.cardBg || '#ffffff'; |
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var resultBg = opts.resultBg || accent; |
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var resultColor = opts.resultColor || '#ffffff'; |
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var positiveColor = opts.positiveColor || '#10b981'; |
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var negativeColor = opts.negativeColor || '#ef4444'; |
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var statBg = opts.statBg || '#f3f4f6'; |
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var statBorder = opts.statBorder || '#e5e7eb'; |
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var statValueColor= opts.statValueColor || '#111827'; |
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var statLabelColor= opts.statLabelColor || '#6b7280'; |
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var inputBorder = opts.inputBorder || '#e5e7eb'; |
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var labelColor = opts.labelColor || '#374151'; |
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var titleColor = opts.titleColor || ''; |
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var subtitleColor = opts.subtitleColor || ''; |
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var sectionBg = opts.sectionBg || ''; |
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var cur = opts.currency || '$'; |
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|
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var titleSize = (opts.titleSize || 28) + 'px'; |
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var resultSize = (opts.resultSize || 48) + 'px'; |
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var cardRadius = (opts.cardRadius || 16) + 'px'; |
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var inputRadius = (opts.inputRadius || 8) + 'px'; |
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var maxWidth = (opts.maxWidth || 560) + 'px'; |
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var paddingTop = (opts.paddingTop != null ? opts.paddingTop : 60) + 'px'; |
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var paddingBottom = (opts.paddingBottom != null ? opts.paddingBottom : 60) + 'px'; |
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|
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var showPayback = opts.showPayback !== false; |
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var showAnnualized = opts.showAnnualized !== false; |
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var showBreakdown = opts.showBreakdown !== false; |
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|
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app.style.setProperty('--bkbg-roi-accent', accent); |
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typoCssVarsForEl(app, opts.titleTypo, '--bkroi-tt-'); |
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typoCssVarsForEl(app, opts.subtitleTypo, '--bkroi-st-'); |
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app.style.paddingTop = paddingTop; |
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app.style.paddingBottom = paddingBottom; |
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if (sectionBg) app.style.background = sectionBg; |
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|
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var wrap = document.createElement('div'); |
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wrap.className = 'bkbg-roi-wrap'; |
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wrap.style.cssText = 'background:' + cardBg + ';border-radius:' + cardRadius + ';max-width:' + maxWidth; |
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app.appendChild(wrap); |
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|
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// Header |
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if ((opts.showTitle && opts.title) || (opts.showSubtitle && opts.subtitle)) { |
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var hdr = document.createElement('div'); |
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hdr.className = 'bkbg-roi-header'; |
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if (opts.showTitle && opts.title) { |
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var t = document.createElement('div'); |
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t.className = 'bkbg-roi-title'; |
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if (titleColor) t.style.color = titleColor; |
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t.textContent = opts.title; |
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hdr.appendChild(t); |
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} |
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if (opts.showSubtitle && opts.subtitle) { |
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var s = document.createElement('div'); |
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s.className = 'bkbg-roi-subtitle'; |
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if (subtitleColor) s.style.color = subtitleColor; |
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s.textContent = opts.subtitle; |
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hdr.appendChild(s); |
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} |
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wrap.appendChild(hdr); |
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} |
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|
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function makeInput(labelText, defaultVal, hasCur, step) { |
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var field = document.createElement('div'); |
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field.className = 'bkbg-roi-field'; |
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var lbl = document.createElement('label'); |
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lbl.className = 'bkbg-roi-label'; |
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lbl.style.color = labelColor; |
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lbl.textContent = labelText; |
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var wrap2 = document.createElement('div'); |
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wrap2.className = 'bkbg-roi-input-wrap'; |
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if (hasCur) { |
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var pfx = document.createElement('span'); |
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pfx.className = 'bkbg-roi-prefix'; |
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pfx.textContent = cur; |
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wrap2.appendChild(pfx); |
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} |
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var inp = document.createElement('input'); |
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inp.type = 'number'; inp.value = defaultVal; inp.min = '0'; |
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if (step) inp.step = step; |
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inp.className = 'bkbg-roi-input' + (hasCur ? ' has-prefix' : ''); |
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inp.style.cssText = 'border:1.5px solid ' + inputBorder + ';border-radius:' + inputRadius; |
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wrap2.appendChild(inp); |
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field.appendChild(lbl); |
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field.appendChild(wrap2); |
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return { field: field, inp: inp }; |
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} |
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|
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// Row 1: investment + return |
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var grid = document.createElement('div'); |
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grid.className = 'bkbg-roi-grid'; |
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var invF = makeInput('Initial Investment', opts.defaultInvestment || 10000, true); |
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var retF = makeInput('Total Return', opts.defaultReturn || 15000, true); |
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grid.appendChild(invF.field); |
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grid.appendChild(retF.field); |
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wrap.appendChild(grid); |
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|
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// Row 2: years (full width) |
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var yrsWrap = document.createElement('div'); |
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yrsWrap.className = 'bkbg-roi-fullrow'; |
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var yrsLbl = document.createElement('label'); |
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yrsLbl.className = 'bkbg-roi-label'; |
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yrsLbl.style.color = labelColor; |
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yrsLbl.textContent = 'Investment Period (Years)'; |
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var yrsInp = document.createElement('input'); |
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yrsInp.type = 'number'; yrsInp.value = opts.defaultYears || 3; |
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yrsInp.min = '0.1'; yrsInp.step = '0.5'; |
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yrsInp.className = 'bkbg-roi-input'; |
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yrsInp.style.cssText = 'border:1.5px solid ' + inputBorder + ';border-radius:' + inputRadius; |
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yrsWrap.appendChild(yrsLbl); |
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yrsWrap.appendChild(yrsInp); |
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wrap.appendChild(yrsWrap); |
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|
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// Result card |
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var resultCard = document.createElement('div'); |
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resultCard.className = 'bkbg-roi-result-card'; |
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resultCard.style.cssText = 'background:' + resultBg + ';color:' + resultColor; |
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var rLbl = document.createElement('div'); |
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rLbl.className = 'bkbg-roi-result-label'; |
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rLbl.textContent = 'Return on Investment'; |
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var rVal = document.createElement('div'); |
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rVal.className = 'bkbg-roi-result-value'; |
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rVal.style.fontSize = resultSize; |
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var rSub = document.createElement('div'); |
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rSub.className = 'bkbg-roi-result-sub'; |
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resultCard.appendChild(rLbl); |
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resultCard.appendChild(rVal); |
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resultCard.appendChild(rSub); |
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wrap.appendChild(resultCard); |
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|
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// Breakdown stats |
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var statsRow, statInv, statNet, statTotal; |
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if (showBreakdown) { |
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statsRow = document.createElement('div'); |
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statsRow.className = 'bkbg-roi-stats'; |
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function makeStat(lbl) { |
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var card = document.createElement('div'); |
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card.className = 'bkbg-roi-stat'; |
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card.style.cssText = 'background:' + statBg + ';border:1px solid ' + statBorder; |
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var v = document.createElement('div'); v.className = 'bkbg-roi-stat-val'; v.style.color = statValueColor; |
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var l = document.createElement('div'); l.className = 'bkbg-roi-stat-lbl'; l.style.color = statLabelColor; |
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l.textContent = lbl; |
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card.appendChild(v); card.appendChild(l); |
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return { card: card, val: v }; |
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} |
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statInv = makeStat('Invested'); |
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statNet = makeStat('Net Profit'); |
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statTotal = makeStat('Total Return'); |
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statsRow.appendChild(statInv.card); |
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statsRow.appendChild(statNet.card); |
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statsRow.appendChild(statTotal.card); |
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wrap.appendChild(statsRow); |
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} |
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|
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// Extras |
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var extrasRow, statAnn, statPay; |
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if (showAnnualized || showPayback) { |
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extrasRow = document.createElement('div'); |
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extrasRow.className = 'bkbg-roi-extras'; |
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function makeExtra(lbl) { |
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var card = document.createElement('div'); |
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card.className = 'bkbg-roi-stat'; |
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card.style.cssText = 'flex:1;background:' + statBg + ';border:1px solid ' + statBorder; |
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var v = document.createElement('div'); v.className = 'bkbg-roi-stat-val'; v.style.color = statValueColor; |
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var l = document.createElement('div'); l.className = 'bkbg-roi-stat-lbl'; l.style.color = statLabelColor; |
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l.textContent = lbl; |
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card.appendChild(v); card.appendChild(l); |
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return { card: card, val: v }; |
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} |
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if (showAnnualized) { statAnn = makeExtra('Annualized ROI'); extrasRow.appendChild(statAnn.card); } |
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if (showPayback) { statPay = makeExtra('Payback Period'); extrasRow.appendChild(statPay.card); } |
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wrap.appendChild(extrasRow); |
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} |
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|
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function refresh() { |
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var inv = parseFloat(invF.inp.value) || 0; |
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var ret = parseFloat(retF.inp.value) || 0; |
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var yrs = parseFloat(yrsInp.value) || 1; |
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var r = calcROI(inv, ret, yrs); |
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var pos = r.netProfit >= 0; |
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|
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rVal.textContent = fmtPct(r.roi); |
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rSub.textContent = 'Net Profit: ' + fmt(r.netProfit, cur); |
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resultCard.style.background = pos ? resultBg : negativeColor; |
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|
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if (showBreakdown) { |
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statInv.val.textContent = fmt(inv, cur); |
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statNet.val.textContent = fmt(r.netProfit, cur); |
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statNet.val.style.color = pos ? positiveColor : negativeColor; |
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statTotal.val.textContent = fmt(ret, cur); |
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} |
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if (showAnnualized && statAnn) { |
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statAnn.val.textContent = fmtPct(r.annualized); |
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statAnn.val.style.color = pos ? positiveColor : negativeColor; |
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} |
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if (showPayback && statPay) { |
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statPay.val.textContent = r.payback != null ? r.payback.toFixed(1) + ' yr' : '—'; |
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} |
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} |
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|
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[invF.inp, retF.inp, yrsInp].forEach(function(inp) { |
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inp.addEventListener('input', refresh); |
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}); |
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refresh(); |
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} |
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|
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document.querySelectorAll('.bkbg-roi-app').forEach(initROI); |
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})(); |
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|
