Frontend-Widgets/payment-button-generator.html at main · monapdx/Frontend-Widgets · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Buy Button Generator</title>
  <style>
html { -webkit-text-size-adjust: 100%; }
img, video, canvas, svg { max-width: 100%; height: auto; }


    :root {
      --bg: #0d0d0f;
      --panel: #16161b;
      --panel-2: #1d1d24;
      --border: #2b2b35;
      --text: #f5f5f7;
      --muted: #a6a6b3;
      --accent: #ff009c;
      --accent-soft: rgba(255, 0, 156, 0.16);
      --radius: 18px;
      --shadow: 0 20px 60px rgba(0,0,0,0.35);
    }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      background:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px),
        radial-gradient(circle at top, rgba(255,0,156,0.14), transparent 30%),
        var(--bg);
      background-size: 28px 28px, 28px 28px, auto, auto;
      color: var(--text);
      min-height: 100vh;
    }

    .wrap {
      width: min(1200px, calc(100% - 32px));
      margin: 32px auto 64px;
    }

    .hero {
      margin-bottom: 24px;
      padding: 28px;
      border: 1px solid var(--border);
      background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
      border-radius: 28px;
      box-shadow: var(--shadow);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      background: var(--accent-soft);
      color: #ff72c8;
      border: 1px solid rgba(255,0,156,0.28);
      border-radius: 999px;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }

    h1 {
      margin: 16px 0 10px;
      font-size: clamp(2rem, 4vw, 3.3rem);
      line-height: 1;
    }

    .hero p {
      margin: 0;
      max-width: 760px;
      color: var(--muted);
      font-size: 1.02rem;
      line-height: 1.65;
    }

    .grid {
      display: grid;
      grid-template-columns: 420px minmax(0, 1fr);
      gap: 24px;
      align-items: start;
    }

    .panel {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }

    .panel-inner {
      padding: 22px;
    }

    .section-title {
      margin: 0 0 16px;
      font-size: 1rem;
      letter-spacing: 0.02em;
    }

    .field-grid {
      display: grid;
      gap: 14px;
    }

    .field {
      display: grid;
      gap: 8px;
    }

    label {
      font-size: 0.95rem;
      font-weight: 600;
    }

    .hint {
      font-size: 0.83rem;
      color: var(--muted);
      line-height: 1.5;
    }

    input, select, textarea {
      width: 100%;
      border: 1px solid var(--border);
      background: var(--panel-2);
      color: var(--text);
      border-radius: 12px;
      padding: 13px 14px;
      font: inherit;
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
    }

    textarea {
      min-height: 118px;
      resize: vertical;
      line-height: 1.45;
    }

    input:focus, select:focus, textarea:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 4px rgba(255, 0, 156, 0.14);
    }

    .row-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .toggle-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 12px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: var(--panel-2);
      color: var(--text);
      cursor: pointer;
      user-select: none;
      font-size: 0.92rem;
    }

    .chip input {
      width: 16px;
      height: 16px;
      accent-color: var(--accent);
      margin: 0;
    }

    .actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    button {
      border: 0;
      border-radius: 12px;
      padding: 13px 16px;
      font: inherit;
      font-weight: 700;
      cursor: pointer;
      transition: transform 0.15s ease, opacity 0.15s ease, box-shadow 0.2s ease;
    }

    button:hover { transform: translateY(-1px); }
    button:active { transform: translateY(0); }

    .primary {
      background: linear-gradient(135deg, #ff009c, #b100ff);
      color: white;
      box-shadow: 0 10px 24px rgba(255, 0, 156, 0.28);
    }

    .secondary {
      background: #24242d;
      color: var(--text);
      border: 1px solid var(--border);
    }

    .preview {
      display: grid;
      gap: 18px;
    }

    .preview-card {
      border: 1px solid var(--border);
      border-radius: 16px;
      background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
      padding: 18px;
    }

    .preview-label {
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--muted);
      margin-bottom: 10px;
    }

    .button-stage {
      min-height: 84px;
      display: flex;
      align-items: center;
      justify-content: flex-start;
      padding: 14px;
      border-radius: 14px;
      border: 1px dashed rgba(255,255,255,0.12);
      background: rgba(255,255,255,0.015);
      overflow-x: auto;
    }

    .button-stage img {
      display: block;
      max-width: 100%;
      height: auto;
    }

    pre {
      margin: 0;
      padding: 16px;
      border-radius: 14px;
      background: #0c0c11;
      border: 1px solid var(--border);
      color: #f8f8fb;
      overflow: auto;
      white-space: pre-wrap;
      word-break: break-word;
      line-height: 1.55;
      font-size: 0.93rem;
    }

    .output-actions {
      display: flex;
      gap: 10px;
      margin-top: 12px;
      flex-wrap: wrap;
    }

    .small {
      font-size: 0.84rem;
      color: var(--muted);
      line-height: 1.55;
    }

    .footer-note {
      margin-top: 20px;
      padding: 14px 16px;
      border-radius: 14px;
      background: rgba(255,255,255,0.03);
      border: 1px solid var(--border);
      color: var(--muted);
      line-height: 1.55;
      font-size: 0.92rem;
    }

    a.fake-render {
      display: inline-block;
      text-decoration: none;
    }

    @media (max-width: 980px) {
      .grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 640px) {
      .wrap {
        width: min(100% - 20px, 1200px);
        margin-top: 20px;
      }

      .hero, .panel-inner {
        padding: 18px;
      }

      .row-2 {
        grid-template-columns: 1fr;
      }

      .actions, .output-actions {
        flex-direction: column;
      }

      button {
        width: 100%;
      }
    }
  </style>
</head>
<body>
  <div class="wrap">
    <section class="hero">
      <div class="eyebrow">GitHub-friendly payment buttons</div>
      <h1>Buy Button Generator</h1>
      <p>
        Generate polished markdown buy buttons for Stripe, PayPal, Gumroad, JVZoo, Shopify, Amazon, and more.
        This is built for README files, landing pages, docs, and “GitHub-as-app” style repos where embeds usually do not work.
      </p>
    </section>

    <div class="grid">
      <section class="panel">
        <div class="panel-inner">
          <h2 class="section-title">Button setup</h2>
          <div class="field-grid">
            <div class="field">
              <label for="platform">Platform</label>
              <select id="platform">
                <option value="stripe">Stripe</option>
                <option value="paypal">PayPal</option>
                <option value="gumroad">Gumroad</option>
                <option value="jvzoo">JVZoo</option>
                <option value="shopify">Shopify</option>
                <option value="amazon">Amazon</option>
                <option value="custom">Custom</option>
              </select>
            </div>

            <div class="field">
              <label for="destination">Checkout or product URL</label>
              <input id="destination" type="url" placeholder="https://buy.stripe.com/..." />
              <div id="platformHint" class="hint">Paste the hosted payment or product page link.</div>
            </div>

            <div class="row-2">
              <div class="field">
                <label for="labelText">Button text</label>
                <input id="labelText" type="text" value="Buy Now" />
              </div>
              <div class="field">
                <label for="emoji">Emoji</label>
                <input id="emoji" type="text" value="💳" />
              </div>
            </div>

            <div class="row-2">
              <div class="field">
                <label for="color">Badge color</label>
                <input id="color" type="text" value="FF009C" placeholder="FF009C" />
              </div>
              <div class="field">
                <label for="style">Badge style</label>
                <select id="style">
                  <option value="for-the-badge">for-the-badge</option>
                  <option value="flat">flat</option>
                  <option value="flat-square">flat-square</option>
                  <option value="plastic">plastic</option>
                  <option value="social">social</option>
                </select>
              </div>
            </div>

            <div class="row-2">
              <div class="field">
                <label for="logo">Logo slug (optional)</label>
                <input id="logo" type="text" placeholder="stripe, paypal, gumroad..." />
              </div>
              <div class="field">
                <label for="logoColor">Logo color (optional)</label>
                <input id="logoColor" type="text" placeholder="white" />
              </div>
            </div>

            <div class="field">
              <label>Output format</label>
              <div class="toggle-row">
                <label class="chip"><input type="radio" name="format" value="markdown-image" checked /> Markdown badge</label>
                <label class="chip"><input type="radio" name="format" value="markdown-text" /> Plain markdown link</label>
                <label class="chip"><input type="radio" name="format" value="html" /> HTML link + image</label>
              </div>
            </div>

            <div class="field">
              <label>Extras</label>
              <div class="toggle-row">
                <label class="chip"><input id="includePlatform" type="checkbox" checked /> Include platform in label</label>
                <label class="chip"><input id="uppercaseWords" type="checkbox" /> Uppercase words</label>
                <label class="chip"><input id="encodeEmoji" type="checkbox" checked /> Encode emoji for shields</label>
              </div>
            </div>
          </div>

          <div class="actions">
            <button class="primary" id="generateBtn">Generate</button>
            <button class="secondary" id="resetBtn">Reset</button>
          </div>

          <div class="footer-note">
            Tip: Stripe and PayPal embed code often will not execute inside GitHub READMEs. This generator makes link-based buy buttons that still work there.
          </div>
        </div>
      </section>

      <section class="preview">
        <div class="panel preview-card">
          <div class="preview-label">Live preview</div>
          <div class="button-stage" id="buttonStage"></div>
          <div class="small" style="margin-top: 12px;">This previews the rendered badge-style version even if you choose another output format.</div>
        </div>

        <div class="panel preview-card">
          <div class="preview-label">Generated code</div>
          <pre id="outputCode"></pre>
          <div class="output-actions">
            <button class="primary" id="copyBtn">Copy code</button>
            <button class="secondary" id="copyUrlBtn">Copy destination URL</button>
          </div>
        </div>
      </section>
    </div>
  </div>

  <script>
    const presets = {
      stripe: {
        destination: 'https://buy.stripe.com/',
        labelText: 'Buy Now',
        emoji: '💳',
        color: '635BFF',
        logo: 'stripe',
        logoColor: 'white',
        hint: 'Use a Stripe Payment Link or hosted Buy Button destination URL.'
      },
      paypal: {
        destination: 'https://www.paypal.com/paypalme/',
        labelText: 'Pay with PayPal',
        emoji: '💸',
        color: '00457C',
        logo: 'paypal',
        logoColor: 'white',
        hint: 'Use a PayPal.Me link, subscription link, or hosted checkout URL.'
      },
      gumroad: {
        destination: 'https://yourname.gumroad.com/l/product',
        labelText: 'Buy on Gumroad',
        emoji: '🛒',
        color: 'FF90E8',
        logo: 'gumroad',
        logoColor: 'black',
        hint: 'Use the public Gumroad product page URL.'
      },
      jvzoo: {
        destination: 'https://www.jvzoo.com/b/0/0/0',
        labelText: 'Buy on JVZoo',
        emoji: '🚀',
        color: 'FF6A00',
        logo: '',
        logoColor: '',
        hint: 'Use your JVZoo offer or funnel link.'
      },
      shopify: {
        destination: 'https://yourstore.myshopify.com/products/product-name',
        labelText: 'View Product',
        emoji: '🛍️',
        color: '95BF47',
        logo: 'shopify',
        logoColor: 'white',
        hint: 'Use the product page or direct checkout/cart link from your Shopify store.'
      },
      amazon: {
        destination: 'https://www.amazon.com/dp/ASIN',
        labelText: 'View on Amazon',
        emoji: '📦',
        color: 'FF9900',
        logo: 'amazon',
        logoColor: 'black',
        hint: 'Use the product page or affiliate link.'
      },
      custom: {
        destination: 'https://example.com/product',
        labelText: 'Buy Now',
        emoji: '🔗',
        color: 'FF009C',
        logo: '',
        logoColor: '',
        hint: 'Use any hosted checkout, product, affiliate, or landing page URL.'
      }
    };

    const els = {
      platform: document.getElementById('platform'),
      destination: document.getElementById('destination'),
      labelText: document.getElementById('labelText'),
      emoji: document.getElementById('emoji'),
      color: document.getElementById('color'),
      style: document.getElementById('style'),
      logo: document.getElementById('logo'),
      logoColor: document.getElementById('logoColor'),
      includePlatform: document.getElementById('includePlatform'),
      uppercaseWords: document.getElementById('uppercaseWords'),
      encodeEmoji: document.getElementById('encodeEmoji'),
      outputCode: document.getElementById('outputCode'),
      buttonStage: document.getElementById('buttonStage'),
      platformHint: document.getElementById('platformHint'),
      generateBtn: document.getElementById('generateBtn'),
      resetBtn: document.getElementById('resetBtn'),
      copyBtn: document.getElementById('copyBtn'),
      copyUrlBtn: document.getElementById('copyUrlBtn')
    };

    function getFormat() {
      return document.querySelector('input[name="format"]:checked').value;
    }

    function applyPreset(name) {
      const p = presets[name];
      if (!p) return;
      els.destination.value = p.destination;
      els.labelText.value = p.labelText;
      els.emoji.value = p.emoji;
      els.color.value = p.color;
      els.logo.value = p.logo;
      els.logoColor.value = p.logoColor;
      els.platformHint.textContent = p.hint;
      generate();
    }

    function titleCaseWords(text) {
      return text
        .split(/\s+/)
        .filter(Boolean)
        .map(word => word.charAt(0).toUpperCase() + word.slice(1))
        .join(' ');
    }

    function safeUrl(url) {
      try {
        const parsed = new URL(url);
        return parsed.toString();
      } catch {
        return url.trim();
      }
    }

    function normalizeColor(input) {
      return input.replace(/^#/, '').trim() || 'FF009C';
    }

    function encodeBadgeLabel(text, encodeEmoji = true) {
      const raw = encodeEmoji ? text : text.replace(/[\u{1F300}-\u{1FAFF}]/gu, '').trim();
      return encodeURIComponent(raw).replace(/%20/g, '%20');
    }

    function buildLabel() {
      const platformName = els.platform.options[els.platform.selectedIndex].text;
      let text = els.labelText.value.trim() || 'Buy Now';
      let emoji = els.emoji.value.trim();

      if (els.uppercaseWords.checked) {
        text = titleCaseWords(text.toUpperCase());
      }

      if (els.includePlatform.checked && !text.toLowerCase().includes(platformName.toLowerCase()) && els.platform.value !== 'custom') {
        text += ' · ' + platformName;
      }

      return emoji ? `${emoji} ${text}` : text;
    }

    function buildShieldsUrl() {
      const label = buildLabel();
      const encodedLabel = encodeBadgeLabel(label, els.encodeEmoji.checked);
      const color = encodeURIComponent(normalizeColor(els.color.value));
      const style = encodeURIComponent(els.style.value);

      const params = new URLSearchParams({ style });
      if (els.logo.value.trim()) params.set('logo', els.logo.value.trim());
      if (els.logoColor.value.trim()) params.set('logoColor', els.logoColor.value.trim());

      return `https://img.shields.io/badge/${encodedLabel}-${color}?${params.toString()}`;
    }

    function buildMarkdownImage() {
      const badgeUrl = buildShieldsUrl();
      const destination = safeUrl(els.destination.value);
      const alt = buildLabel().replace(/\s+/g, ' ').trim();
      return `[![${alt}](${badgeUrl})](${destination})`;
    }

    function buildMarkdownText() {
      const destination = safeUrl(els.destination.value);
      return `[${buildLabel()}](${destination})`;
    }

    function buildHtml() {
      const destination = safeUrl(els.destination.value);
      const badgeUrl = buildShieldsUrl();
      const alt = buildLabel().replace(/"/g, '&quot;');
      return `<a href="${destination}"><img src="${badgeUrl}" alt="${alt}" /></a>`;
    }

    function renderPreview() {
      const destination = safeUrl(els.destination.value);
      const badgeUrl = buildShieldsUrl();
      const alt = buildLabel();
      els.buttonStage.innerHTML = `<a class="fake-render" href="${destination}" target="_blank" rel="noopener noreferrer"><img src="${badgeUrl}" alt="${alt}"></a>`;
    }

    function generate() {
      const format = getFormat();
      let output = '';

      if (format === 'markdown-image') output = buildMarkdownImage();
      if (format === 'markdown-text') output = buildMarkdownText();
      if (format === 'html') output = buildHtml();

      els.outputCode.textContent = output;
      renderPreview();
    }

    async function copyText(value) {
      try {
        await navigator.clipboard.writeText(value);
        return true;
      } catch {
        const area = document.createElement('textarea');
        area.value = value;
        document.body.appendChild(area);
        area.select();
        const ok = document.execCommand('copy');
        area.remove();
        return ok;
      }
    }

    els.platform.addEventListener('change', (e) => applyPreset(e.target.value));
    [
      els.destination,
      els.labelText,
      els.emoji,
      els.color,
      els.style,
      els.logo,
      els.logoColor,
      els.includePlatform,
      els.uppercaseWords,
      els.encodeEmoji
    ].forEach(el => {
      el.addEventListener('input', generate);
      el.addEventListener('change', generate);
    });

    document.querySelectorAll('input[name="format"]').forEach(radio => {
      radio.addEventListener('change', generate);
    });

    els.generateBtn.addEventListener('click', generate);

    els.resetBtn.addEventListener('click', () => {
      els.platform.value = 'stripe';
      els.style.value = 'for-the-badge';
      els.includePlatform.checked = true;
      els.uppercaseWords.checked = false;
      els.encodeEmoji.checked = true;
      applyPreset('stripe');
    });

    els.copyBtn.addEventListener('click', async () => {
      const ok = await copyText(els.outputCode.textContent);
      els.copyBtn.textContent = ok ? 'Copied!' : 'Copy failed';
      setTimeout(() => { els.copyBtn.textContent = 'Copy code'; }, 1400);
    });

    els.copyUrlBtn.addEventListener('click', async () => {
      const ok = await copyText(safeUrl(els.destination.value));
      els.copyUrlBtn.textContent = ok ? 'Copied!' : 'Copy failed';
      setTimeout(() => { els.copyUrlBtn.textContent = 'Copy destination URL'; }, 1400);
    });

    applyPreset('stripe');
  </script>
</body>
</html>