Refactor backend and add registry build workflow

showcase_service.py

@@ -0,0 +1,89 @@
+"""Homepage showcase configuration and URL validation."""
+
+
+from database_service import database_connection
+import json
+from runtime_config import (
+    DATABASE_URL,
+    logger,
+)
+import urllib.parse
+
+__all__ = ["get_homepage_showcase_links", "save_homepage_showcase_links"]
+
+HOMEPAGE_SHOWCASE_KEY = "homepage_showcase"
+
+
+def _default_homepage_showcase_links():
+    return [
+        {"label": "Site 1", "url": ""},
+        {"label": "Site 2", "url": ""},
+        {"label": "Site 3", "url": ""},
+    ]
+
+def get_homepage_showcase_links():
+    """Load 3 homepage showcase slots from site_settings."""
+    default = _default_homepage_showcase_links()
+    try:
+        with database_connection() as conn:
+            cursor = conn.cursor()
+            cursor.execute("SELECT value FROM site_settings WHERE key = ?", (HOMEPAGE_SHOWCASE_KEY,))
+            row = cursor.fetchone()
+            if not row:
+                return default
+            raw = row['value'] if isinstance(row, dict) else row[0]
+            data = json.loads(raw)
+            if not isinstance(data, list):
+                return default
+            out = []
+            for i in range(3):
+                if i < len(data) and isinstance(data[i], dict):
+                    label = (data[i].get('label') or f'Site {i + 1}').strip()[:160]
+                    url = (data[i].get('url') or '').strip()[:2048]
+                    out.append({"label": label, "url": url})
+                else:
+                    out.append({"label": f'Site {i + 1}', "url": ""})
+            return out
+    except Exception as e:
+        logger.error(f"get_homepage_showcase_links: {e}")
+        return default
+
+def _normalize_showcase_url(url: str) -> str:
+    u = (url or '').strip()
+    if not u:
+        return ''
+    if not u.startswith(('http://', 'https://')):
+        u = 'https://' + u
+    return u
+
+def _is_valid_http_url(u: str) -> bool:
+    if not u:
+        return True
+    try:
+        p = urllib.parse.urlparse(u)
+        return p.scheme in ('http', 'https') and bool(p.netloc)
+    except Exception:
+        return False
+
+def save_homepage_showcase_links(links: list) -> None:
+    payload = json.dumps(links, ensure_ascii=False)
+    with database_connection() as conn:
+        cursor = conn.cursor()
+        if 'postgres' in DATABASE_URL:
+            cursor.execute(
+                "INSERT INTO site_settings (key, value, updated_at) VALUES (?, ?, CURRENT_TIMESTAMP) ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value, updated_at = CURRENT_TIMESTAMP",
+                (HOMEPAGE_SHOWCASE_KEY, payload)
+            )
+        else:
+            cursor.execute("SELECT 1 FROM site_settings WHERE key = ?", (HOMEPAGE_SHOWCASE_KEY,))
+            if cursor.fetchone():
+                cursor.execute(
+                    "UPDATE site_settings SET value = ?, updated_at = CURRENT_TIMESTAMP WHERE key = ?",
+                    (payload, HOMEPAGE_SHOWCASE_KEY),
+                )
+            else:
+                cursor.execute(
+                    "INSERT INTO site_settings (key, value) VALUES (?, ?)",
+                    (HOMEPAGE_SHOWCASE_KEY, payload),
+                )
+        conn.commit()