feat(blog): Phase 5 SEO/GEO content with 5 new blog posts
Add 5 long-form Thai blog posts (1,200-2,500 words each) with SEO + GEO optimization for the dealplustech water-systems site. Each post targets a specific audience (contractors, engineers, project managers) and follows a content-quality workflow: source real product specs, verify Thai text, dedupe images, link back to product pages. ## New blog posts (src/content/blog/) - thermobreak-guide.md (Thermobreak closed-cell insulation overview) - plastic-grilles-guide.md (ABS plastic grilles for HVAC) - ppr-pipe-guide.md (PPR pipe properties + heat-fusion welding) - ppr-vs-hdpe-vs-upvc.md (3-way pipe comparison with PE80/PE100) - thermobreak-series-guide.md (Thermobreak LS vs Solar series) - 10-things-checklist-pipe-ordering.md (10-point pre-order checklist) ## Removed legacy posts - pipe-knowledge.md, valve-guide.md, welcome-post.md (orphans) ## Hero images (public/images/blog/) ~20 product photos sourced from manufacturers (Thermobreak, Thai PPR, thaiconsupply) plus Nano Banana Pro infographics. All resized to 3:2 aspect ratio per user preference. Source folder preserved for re-derivation. ## Astro layout/SEO work - src/components/seo/SEO.astro, JsonLd.astro (new SEO components) - src/layouts/BaseLayout.astro, Layout.astro (OG/Twitter/JSON-LD wiring) - src/pages/404.astro - Product pages (8): added #pricelist anchors + schema work - src/styles/global.css: scroll-padding for sticky-header anchors ## Automation scripts (scripts/) - build_og_image.py (OG image builder) - inject_faq_schema.py, inject_product_schema.py (JSON-LD injection) ## Misc - public/robots.txt, public/images/og/default-og.jpg - .gitignore: exclude scripts/__pycache__/
This commit is contained in:
hermes
40
scripts/build_og_image.py
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scripts/build_og_image.py
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"""Generate a clean OG image (1200x630, white background, centered logo)."""
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from PIL import Image
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import os
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ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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LOGO = os.path.join(ROOT, "public/images/logo/dealplustech-logo.png")
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OUT = os.path.join(ROOT, "public/images/og/default-og.jpg")
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CANVAS_W, CANVAS_H = 1200, 630
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LOGO_MAX_W = int(CANVAS_W * 0.70) # 70% of canvas width
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LOGO_MAX_H = int(CANVAS_H * 0.70) # 70% of canvas height
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# 1. White canvas
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canvas = Image.new("RGB", (CANVAS_W, CANVAS_H), (255, 255, 255))
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# 2. Open logo (RGBA)
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logo = Image.open(LOGO).convert("RGBA")
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lw, lh = logo.size
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print(f"logo original: {lw}x{lh}")
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# 3. Scale logo to fit within 70% box, preserve aspect ratio
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scale = min(LOGO_MAX_W / lw, LOGO_MAX_H / lh)
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new_w = int(lw * scale)
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new_h = int(lh * scale)
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logo = logo.resize((new_w, new_h), Image.LANCZOS)
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print(f"logo scaled: {new_w}x{new_h}")
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# 4. Center
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x0 = (CANVAS_W - new_w) // 2
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y0 = (CANVAS_H - new_h) // 2
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# 5. Paste (uses alpha as mask)
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canvas.paste(logo, (x0, y0), logo)
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# 6. Save as JPEG quality 90
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os.makedirs(os.path.dirname(OUT), exist_ok=True)
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canvas.save(OUT, "JPEG", quality=90, optimize=True, progressive=True)
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size = os.path.getsize(OUT)
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print(f"wrote: {OUT} ({size:,} bytes)")
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152
scripts/inject_faq_schema.py
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scripts/inject_faq_schema.py
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"""
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Extract FAQ Q&A pairs from product pages and inject as `faq={[...]}` prop.
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Pattern detected:
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<h3 ...>Q: ...question...</h3>
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<p ...>...answer...</p>
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Only operates on pages that have a FAQ section (search for 'คำถามที่พบบ่อย').
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"""
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import re
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from pathlib import Path
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ROOT = Path(__file__).resolve().parent.parent
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PAGES = ROOT / "src" / "pages"
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# Product pages with FAQ UI (from earlier audit: lines >= 240 and grep -c FAQ > 0)
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TARGETS = [
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"pipe-coupling.astro",
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"ท่อ-syler.astro",
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"หัวจ่าย-ball-jet.astro",
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"เม็กกรู๊ฟ-คับปลิ้ง.astro",
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"เครื่องเชื่อม-hdpe.astro",
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"เครื่องเชื่อม-ppr.astro",
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"เทอร์โมเบรค-thermobreak.astro",
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"realflex.astro",
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"water-treatment.astro",
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"วาล์ว-valve.astro",
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"รั้วเทวดา.astro",
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"ระบบรั้วไวน์แมน.astro",
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"durgo-avvs.astro",
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"ตู้ดับเพลิง.astro",
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"water-pump.astro",
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"grilles.astro",
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"ท่อ-upvc.astro",
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"armflex.astro",
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"aeroflex.astro",
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"maxflex.astro",
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]
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def extract_faq(content: str) -> list[tuple[str, str]]:
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"""Return list of (question, answer) tuples from FAQ section.
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Scopes regex to the FAQ section only: starts at "คำถามที่พบบ่อย" and
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ends at the next "<!-- Contact CTA" or "Contact CTA" marker. This
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prevents pattern D from catching feature lists elsewhere on the page.
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Handles 4 patterns:
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A. <h3>Q: ...</h3><p>...</p>
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B. <h3>1. ...</h3><p>...</p> (number prefix)
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C. <details><summary>...</summary><div>...</div></details>
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D. <h3>question</h3><p>answer</p> (no prefix — grilles style)
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"""
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if 'คำถามที่พบบ่อย' not in content:
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return []
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# Slice content to the FAQ block: from "คำถามที่พบบ่อย" up to the next
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# Contact CTA / section end. Fall back to end-of-file if no terminator.
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start = content.index('คำถามที่พบบ่อย')
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end = len(content)
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for marker in ('<!-- Contact CTA', 'Contact CTA', '<!-- End FAQ', '</section>\n <!--'):
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idx = content.find(marker, start)
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if idx != -1 and idx < end:
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end = idx
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block = content[start:end]
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pairs: list[tuple[str, str]] = []
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# Pattern A + B: <h2-h4 ...>prefix...</h2-h4><p>answer</p>
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p_ab = re.compile(
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r'<h[234]\b[^>]*>\s*(?:Q:|\d+\.\s*)(?P<q>[^<]+?)\s*</h[234]>\s*<p\b[^>]*>(?P<a>.*?)</p>',
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re.DOTALL,
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)
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for m in p_ab.finditer(block):
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pairs.append((m.group('q').strip(), m.group('a').strip()))
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if not pairs:
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# Pattern D: <h2-h4>question</h2-h4><p>answer</p> (no prefix)
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p_d = re.compile(
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r'<h[234]\b[^>]*>\s*(?P<q>[^<]+?)\s*</h[234]>\s*<p\b[^>]*>(?P<a>.*?)</p>',
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re.DOTALL,
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)
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for m in p_d.finditer(block):
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pairs.append((m.group('q').strip(), m.group('a').strip()))
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if not pairs:
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# Pattern C: <details><summary>...</summary><div>...</div></details>
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p_c = re.compile(
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r'<details\b[^>]*>\s*<summary\b[^>]*>(?P<sum>.*?)</summary>'
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r'.*?<div\b[^>]*>(?P<a>.*?)</div>\s*</details>',
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re.DOTALL,
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)
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for m in p_c.finditer(block):
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sum_html = m.group('sum')
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sp = re.search(r'<span\b[^>]*>(?P<q>.*?)</span>', sum_html, re.DOTALL)
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q = sp.group('q').strip() if sp else re.sub(r'<[^>]+>', '', sum_html).strip()
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pairs.append((q, m.group('a').strip()))
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return pairs
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def js_string(value: str) -> str:
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"""Single-quoted JS literal that's safe to embed in Astro JSX."""
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return "'" + value.replace("\\", "\\\\").replace("'", "\\'") + "'"
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def build_faq_prop(pairs: list[tuple[str, str]]) -> str:
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lines = ['\n faq={[']
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for q, a in pairs:
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lines.append(f' {{ question: {js_string(q)}, answer: {js_string(a)} }},')
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lines.append(' ]}')
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return '\n'.join(lines)
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def inject_prop(content: str, prop_block: str) -> str:
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"""Insert prop_block before the closing > of the first <BaseLayout> tag."""
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m = re.search(r'<BaseLayout\b[^>]*>', content)
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if not m:
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return content
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insert_at = m.end() - 1
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return content[:insert_at] + prop_block + content[insert_at:]
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def process_file(path: Path) -> str:
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content = path.read_text(encoding='utf-8')
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# Idempotent: if faq prop already exists, skip.
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if 'faq={[' in content:
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return f"SKIP (already has faq prop): {path.name}"
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pairs = extract_faq(content)
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if not pairs:
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return f"SKIP (no FAQ): {path.name}"
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prop_block = build_faq_prop(pairs)
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new_content = inject_prop(content, prop_block)
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if new_content == content:
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return f"NO-CHANGE: {path.name}"
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path.write_text(new_content, encoding='utf-8')
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return f"OK ({len(pairs)} pairs): {path.name}"
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def main() -> None:
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for name in TARGETS:
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path = PAGES / name
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if not path.exists():
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print(f"MISSING: {name}")
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continue
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print(process_file(path))
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if __name__ == "__main__":
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main()
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158
scripts/inject_product_schema.py
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scripts/inject_product_schema.py
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"""
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Inject `product={...}` prop into <BaseLayout> calls in product pages.
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For pages that ALREADY have a Product JSON-LD block, this script also
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removes that block (since the layout's `product` prop replaces it).
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Run from project root: python3 scripts/inject_product_schema.py
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"""
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import os
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import re
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from pathlib import Path
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ROOT = Path(__file__).resolve().parent.parent
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PAGES = ROOT / "src" / "pages"
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# Map page slug -> brand name for product schema
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# Anything not listed falls back to "ดีล พลัส เทค"
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BRAND_MAP = {
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"ท่อ-ppr-thai-ppr": "Thai PPR",
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"ท่อ-ppr-scg": "SCG",
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"ท่อ-hdpe": "HDPE",
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"ท่อ-upvc": "UPVC",
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"ท่อ-syler": "Syler",
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"ท่อ-xy-lent": "XYLENT",
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"เครื่องเชื่อม-hdpe": "HDPE",
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"เครื่องเชื่อม-ppr": "PPR",
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"pipe-coupling": "SMC",
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"เม็กกรู๊ฟ-คับปลิ้ง": "MECH",
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"วาล์ว-valve": "Generic",
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"water-pump": "Generic",
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"water-treatment": "Generic",
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"realflex": "Realflex",
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"armflex": "Armacell",
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"aeroflex": "Aerocell",
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"maxflex": "Maxflex",
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"เทอร์โมเบรค-thermobreak": "Thermobreak",
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"หัวจ่าย-ball-jet": "SAPA",
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"grilles": "Generic",
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"durgo-avvs": "DURGO",
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"ตู้ดับเพลิง": "Generic",
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"รั้วเทวดา": "Tevada",
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"ระบบรั้วไวน์แมน": "Vineman",
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}
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# Pages that are NOT products (skip them)
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SKIP_PAGES = {
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"index.astro", "all-products.astro", "about-us.astro", "contact-us.astro",
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"portfolio.astro", "privacy-policy.astro", "terms-and-conditions.astro",
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"ระบบน้ำ.astro", # category overview, not a product
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}
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IMG_RE = re.compile(r'<img[^>]*\bsrc="(/images/[^"]+)"')
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def escape_for_jsx(value: str) -> str:
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"""Escape a Python string for safe use inside a single-quoted JSX expression.
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Handles backslashes, single quotes, and newlines.
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"""
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out = value.replace("\\", "\\\\")
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out = out.replace("'", "\\'")
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out = out.replace("\n", " ").replace("\r", " ")
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return out
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def jsx_string(value: str) -> str:
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return "'" + escape_for_jsx(value) + "'"
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def first_image_src(content: str) -> str | None:
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"""Return the first <img src="/images/..."> path, skipping data URIs."""
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m = IMG_RE.search(content)
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return m.group(1) if m else None
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def remove_existing_product_jsonld(content: str) -> str:
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"""Strip the standalone Product JSON-LD <script> block (kept the rest)."""
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# Match <script type="application/ld+json"> with @type: Product ... </script>
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pattern = re.compile(
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r'<script[^>]*type="application/ld\+json"[^>]*>\s*'
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r'\{[^{}]*"@type"\s*:\s*"Product"[\s\S]*?'
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r'\}\s*</script>\s*',
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re.MULTILINE,
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)
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return pattern.sub('', content)
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def extract_title_and_desc(content: str) -> tuple[str | None, str | None]:
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"""Parse <BaseLayout title="..." description="..."> attrs (single or double quoted)."""
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# Title may contain " - ดีล พลัส เทค" suffix
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title_m = re.search(r'title=(?:"([^"]+)"|\'([^\']+)\')', content)
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desc_m = re.search(r'description=(?:"([^"]+)"|\'([^\']+)\')', content)
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title = (title_m.group(1) or title_m.group(2)) if title_m else None
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desc = (desc_m.group(1) or desc_m.group(2)) if desc_m else None
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return title, desc
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def inject_product_prop(content: str, image: str, title: str, slug: str) -> str:
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"""Add product={...} prop to the FIRST <BaseLayout> tag."""
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brand = BRAND_MAP.get(slug, "ดีล พลัส เทค")
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prop_block = (
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f'\n product={{{{\n'
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f' name: {jsx_string(title)},\n'
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f' image: {jsx_string(image)},\n'
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f' brand: {jsx_string(brand)},\n'
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f' }}}}'
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)
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# Find first <BaseLayout ... > — we insert product={...} before the closing >
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# Use a non-greedy match up to the first > that is NOT inside a quoted attr.
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m = re.search(r'<BaseLayout\b[^>]*>', content)
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if not m:
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return content # No <BaseLayout> tag — leave file untouched.
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insert_at = m.end() - 1 # position of the closing >
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return content[:insert_at] + prop_block + content[insert_at:]
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def process_file(path: Path) -> str:
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content = path.read_text(encoding='utf-8')
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original = content
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slug = path.stem # e.g. "ท่อ-hdpe"
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title, _ = extract_title_and_desc(content)
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if not title:
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return f"SKIP (no title): {path.name}"
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image = first_image_src(content)
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if not image:
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return f"SKIP (no image): {path.name}"
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has_existing_jsonld = '"Product"' in content and '<script type="application/ld+json"' in content
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content = inject_product_prop(content, image, title, slug)
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if has_existing_jsonld:
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content = remove_existing_product_jsonld(content)
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if content == original:
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return f"NO-CHANGE: {path.name}"
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path.write_text(content, encoding='utf-8')
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action = "migrated" if has_existing_jsonld else "injected"
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return f"OK ({action}): {path.name}"
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def main() -> None:
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targets = sorted([
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p for p in PAGES.glob("*.astro")
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if p.name not in SKIP_PAGES
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])
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for path in targets:
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print(process_file(path))
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if __name__ == "__main__":
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main()
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Reference in New Issue
Block a user