Initial commit: Holiday Travel App with resort comparison, trip management, and multi-provider search

lib/providers/linkBuilders.ts

@@ -0,0 +1,125 @@
+import type { Deal, SearchCriteria } from "../types";
+import { enumerateDatePairs } from "../date";
+
+function toLower(s: string) { return (s||"").toLowerCase(); }
+
+export async function buildSkyscannerLinks(c: SearchCriteria): Promise<Deal[]> {
+  const origin = toLower(c.origin);
+  const out: Deal[] = [];
+  const pairs = enumerateDatePairs(c.startDate, c.endDate, c.tripLengthMin, c.tripLengthMax, 6);
+
+  for (const dest of c.destinations) {
+    for (const p of pairs) {
+      const path = `https://www.skyscanner.ca/transport/flights/${origin}/${toLower(dest)}/${p.out}/${p.back}/`;
+      out.push({
+        id: `sky-${origin}-${dest}-${p.out}-${p.back}`,
+        title: `${c.origin} → ${dest} (${p.nights} nights)`,
+        source: "Skyscanner Link",
+        link: path,
+        price: null,
+        currency: c.currency || "CAD",
+        startDate: `${p.out.slice(0,4)}-${p.out.slice(4,6)}-${p.out.slice(6,8)}`,
+        endDate: `${p.back.slice(0,4)}-${p.back.slice(4,6)}-${p.back.slice(6,8)}`,
+        nights: p.nights,
+        origin: c.origin,
+        destination: dest,
+      });
+    }
+  }
+  return out;
+}
+
+export async function buildGoogleFlightsLinks(c: SearchCriteria): Promise<Deal[]> {
+  const out: Deal[] = [];
+  const pairs = enumerateDatePairs(c.startDate, c.endDate, c.tripLengthMin, c.tripLengthMax, 4);
+  for (const dest of c.destinations) {
+    for (const p of pairs) {
+      const q = encodeURIComponent(`flights from ${c.origin} to ${dest} ${p.out} to ${p.back}`);
+      const link = `https://www.google.com/travel/flights?q=${q}`;
+      out.push({
+        id: `gfl-${c.origin}-${dest}-${p.out}-${p.back}`,
+        title: `Google Flights: ${c.origin} → ${dest} (${p.nights} nights)`,
+        source: "Google Flights Link",
+        link,
+        price: null,
+        currency: c.currency || "CAD",
+        startDate: `${p.out.slice(0,4)}-${p.out.slice(4,6)}-${p.out.slice(6,8)}`,
+        endDate: `${p.back.slice(0,4)}-${p.back.slice(4,6)}-${p.back.slice(6,8)}`,
+        nights: p.nights,
+        origin: c.origin,
+        destination: dest,
+      });
+    }
+  }
+  return out;
+}
+
+export async function buildAirCanadaLinks(c: SearchCriteria): Promise<Deal[]> {
+  const out: Deal[] = [];
+  const pairs = enumerateDatePairs(c.startDate, c.endDate, c.tripLengthMin, c.tripLengthMax, 3);
+  for (const dest of c.destinations) {
+    for (const p of pairs) {
+      const sd = `${p.out.slice(0,4)}-${p.out.slice(4,6)}-${p.out.slice(6,8)}`;
+      const ed = `${p.back.slice(0,4)}-${p.back.slice(4,6)}-${p.back.slice(6,8)}`;
+      const params = new URLSearchParams({
+        org1: c.origin.toUpperCase(),
+        dest1: dest.toUpperCase(),
+        departureDate1: sd,
+        returnDate1: ed,
+        tripType: "2",
+        lang: "en-CA"
+      });
+      const link = `https://www.aircanada.com/ca/en/aco/home/book/travel.html?${params.toString()}`;
+      out.push({
+        id: `ac-${c.origin}-${dest}-${p.out}-${p.back}`,
+        title: `Air Canada: ${c.origin} → ${dest} (${p.nights} nights)`,
+        source: "Air Canada Link",
+        link,
+        price: null,
+        currency: c.currency || "CAD",
+        startDate: sd,
+        endDate: ed,
+        nights: p.nights,
+        origin: c.origin,
+        destination: dest,
+      });
+    }
+  }
+  return out;
+}
+
+export async function buildAirTransatLinks(c: SearchCriteria): Promise<Deal[]> {
+  const out: Deal[] = [];
+  const pairs = enumerateDatePairs(c.startDate, c.endDate, c.tripLengthMin, c.tripLengthMax, 3);
+  for (const dest of c.destinations) {
+    for (const p of pairs) {
+      const sd = `${p.out.slice(0,4)}-${p.out.slice(4,6)}-${p.out.slice(6,8)}`;
+      const ed = `${p.back.slice(0,4)}-${p.back.slice(4,6)}-${p.back.slice(6,8)}`;
+      // Air Transat vacation packages search
+      const params = new URLSearchParams({
+        depCity: c.origin.toUpperCase(),
+        destCode: dest.toUpperCase(),
+        depDate: sd,
+        retDate: ed,
+        adults: "2",
+        children: "0",
+        infants: "0"
+      });
+      const link = `https://www.airtransat.com/en-CA/flights-hotels?${params.toString()}`;
+      out.push({
+        id: `at-${c.origin}-${dest}-${p.out}-${p.back}`,
+        title: `Air Transat: ${c.origin} → ${dest} (${p.nights} nights)`,
+        source: "Air Transat Link",
+        link,
+        price: null,
+        currency: c.currency || "CAD",
+        startDate: sd,
+        endDate: ed,
+        nights: p.nights,
+        origin: c.origin,
+        destination: dest,
+      });
+    }
+  }
+  return out;
+}