fixing #319 & #318

lib/services/immoscout/immoscout-web-translator.js

@@ -141,6 +141,43 @@ const WEB_PATH_TO_APARTMENT_EQUIPMENT_MAP = {
   'barrierefreie-wohnung-mieten': { equipment: ['handicappedaccessible'] },
 };
 
+// SEO-optimized rental paths used by the ImmoScout web UI when the user
+// configures a maximum warmrent. Example: "wohnung-bis-800-euro-warm" means
+// "apartment for rent up to 800 EUR warmrent". The web UI generates these
+// paths instead of explicit `price` / `pricetype` query parameters.
+// Note: only the warmrent variant uses an SEO slug; max coldrent searches
+// use the regular "wohnung-mieten" path with explicit `price` and
+// `pricetype=rentpermonth` query params, which the existing translator
+// already handles.
+const SEO_RENT_TYPE_TO_REAL_ESTATE_TYPE = {
+  wohnung: 'apartmentrent',
+  haus: 'houserent',
+};
+const SEO_MAX_WARMRENT_PATH_PATTERN = /^(?<type>wohnung|haus)-bis-(?<price>\d+)-euro-warm$/;
+
+/**
+ * Parses SEO-optimized ImmoScout web paths that encode a maximum warmrent, such
+ * as "wohnung-bis-800-euro-warm". Returns the corresponding mobile API real
+ * estate type and the implicit price/pricetype parameters, or null if the path
+ * does not match the known SEO max-warmrent pattern.
+ *
+ * @param {string} realTypeKey The last segment of the URL path.
+ * @returns {{ realType: string, additionalParams: Record<string, string> } | null}
+ */
+function parseSeoMaxWarmrentPath(realTypeKey) {
+  const match = realTypeKey.match(SEO_MAX_WARMRENT_PATH_PATTERN);
+  if (!match) return null;
+
+  const { type, price } = match.groups;
+  return {
+    realType: SEO_RENT_TYPE_TO_REAL_ESTATE_TYPE[type],
+    additionalParams: {
+      price: `-${price}`,
+      pricetype: 'calculatedtotalrent',
+    },
+  };
+}
+
 export function convertWebToMobile(webUrl) {
   let url;
   try {
@@ -164,7 +201,14 @@ export function convertWebToMobile(webUrl) {
       additionalParamsFromWebPath = WEB_PATH_TO_APARTMENT_EQUIPMENT_MAP[realTypeKey];
       realType = REAL_ESTATE_TYPE['wohnung-mieten'];
     } else {
-      throw new Error(`Real estate type not found: ${realTypeKey}`);
+      // Test for SEO max-warmrent path, e.g. "wohnung-bis-800-euro-warm"
+      const seoMaxWarmrent = parseSeoMaxWarmrentPath(realTypeKey);
+      if (seoMaxWarmrent) {
+        realType = seoMaxWarmrent.realType;
+        additionalParamsFromWebPath = seoMaxWarmrent.additionalParams;
+      } else {
+        throw new Error(`Real estate type not found: ${realTypeKey}`);
+      }
     }
   }