Add page to generate a list of trips as text

agenda/types.py

@@ -66,6 +66,25 @@ class Trip:
         max_date = max(max_conference_end, travel_end, accommodation_end)
         return max_date if max_date != datetime.date.min else None
 
+    def locations(self) -> list[tuple[str, Country]]:
+        """Locations for trip."""
+        seen: set[tuple[str, str]] = set()
+        items = []
+
+        for item in self.conferences + self.accommodation + self.events:
+            if "country" not in item or "location" not in item:
+                continue
+            key = (item["location"], item["country"])
+            if key in seen:
+                continue
+            seen.add(key)
+
+            country = agenda.get_country(item["country"])
+            assert country
+            items.append((item["location"], country))
+
+        return items
+
     @property
     def countries(self) -> list[Country]:
         """Countries visited as part of trip, in order."""
@@ -90,6 +109,13 @@ class Trip:
             [f"{c.flag} {c.name}" for c in self.countries]
         )
 
+    @property
+    def locations_str(self) -> str:
+        """List of countries visited on this trip."""
+        return format_list_with_ampersand(
+            [f"{location} {c.flag}" for location, c in self.locations()]
+        )
+
     @property
     def country_flags(self) -> str:
         """Countries flags for trip."""