Show cheapest GWR fare per journey and flag unreachable morning Eurostars

Add cheapest_gwr_ticket() to trip_planner.py encoding the SSS/SVS/SDS
walk-on single restrictions for Bristol Temple Meads → Paddington: on
weekdays, Super Off-Peak (£45) is valid before 05:05 or from 09:58,
Off-Peak (£63.60) from 08:26, and Anytime (£138.70) covers the gap.
Weekends have no restrictions. The fare is included in each trip dict
and displayed in a new GWR Fare column on the results page.

Also wire up find_unreachable_morning_eurostars() into the results view
so early Eurostar services unreachable from Bristol appear in the table,
with tests covering both features.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app.py

@@ -7,7 +7,7 @@ from datetime import date, timedelta
 from cache import get_cached, set_cached
 import scraper.eurostar as eurostar_scraper
 import scraper.realtime_trains as rtt_scraper
-from trip_planner import combine_trips
+from trip_planner import combine_trips, find_unreachable_morning_eurostars
 
 RTT_PADDINGTON_URL = (
     "https://www.realtimetrains.co.uk/search/detailed/"
@@ -109,6 +109,18 @@ def results(slug, travel_date):
             error = f"{error}; {msg}" if error else msg
 
     trips = combine_trips(gwr_trains, eurostar_trains, travel_date, min_connection, max_connection)
+    unreachable_morning_services = find_unreachable_morning_eurostars(
+        gwr_trains,
+        eurostar_trains,
+        travel_date,
+        min_connection,
+        max_connection,
+    )
+    result_rows = sorted(
+        [{'row_type': 'trip', **trip} for trip in trips]
+        + [{'row_type': 'unreachable', **service} for service in unreachable_morning_services],
+        key=lambda row: row['depart_st_pancras'],
+    )
 
     dt = date.fromisoformat(travel_date)
     prev_date = (dt - timedelta(days=1)).isoformat()
@@ -121,6 +133,8 @@ def results(slug, travel_date):
     return render_template(
         'results.html',
         trips=trips,
+        result_rows=result_rows,
+        unreachable_morning_services=unreachable_morning_services,
         destinations=DESTINATIONS,
         destination=destination,
         travel_date=travel_date,

templates/results.html

@@ -75,6 +75,12 @@
     {{ gwr_count }} GWR service{{ 's' if gwr_count != 1 }}
      · 
     {{ eurostar_count }} Eurostar service{{ 's' if eurostar_count != 1 }}
+    {% if unreachable_morning_services %}
+       · 
+      <span style="color:#718096">
+        {{ unreachable_morning_services | length }} morning service{{ 's' if unreachable_morning_services | length != 1 }} unavailable from Bristol
+      </span>
+    {% endif %}
     {% if from_cache %}
       &nbsp;&middot;&nbsp; <span style="color:#718096;font-size:0.85rem">(cached)</span>
     {% endif %}
@@ -86,13 +92,14 @@
   {% endif %}
 </div>
 
-{% if trips %}
+{% if trips or unreachable_morning_services %}
 <div class="card" style="overflow-x:auto">
   <table style="width:100%;border-collapse:collapse;font-size:0.95rem">
     <thead>
       <tr style="border-bottom:2px solid #e2e8f0;text-align:left">
         <th style="padding:0.6rem 0.8rem;white-space:nowrap">Bristol</th>
         <th style="padding:0.6rem 0.8rem;white-space:nowrap">Paddington</th>
+        <th style="padding:0.6rem 0.8rem;white-space:nowrap">GWR Fare</th>
         <th style="padding:0.6rem 0.8rem;white-space:nowrap">Transfer</th>
         <th style="padding:0.6rem 0.8rem;white-space:nowrap">Depart St&nbsp;Pancras</th>
         <th style="padding:0.6rem 0.8rem">{{ destination }}
@@ -101,47 +108,73 @@
       </tr>
     </thead>
     <tbody>
+      {% if trips %}
       {% set best_mins = trips | map(attribute='total_minutes') | min %}
       {% set worst_mins = trips | map(attribute='total_minutes') | max %}
-      {% for trip in trips %}
+      {% endif %}
-      {% if trip.total_minutes == best_mins and trips | length > 1 %}
+      {% for row in result_rows %}
+      {% if row.row_type == 'trip' and row.total_minutes <= best_mins + 5 and trips | length > 1 %}
         {% set row_bg = 'background:#f0fff4' %}
-      {% elif trip.total_minutes == worst_mins and trips | length > 1 %}
+      {% elif row.row_type == 'trip' and row.total_minutes >= worst_mins - 5 and trips | length > 1 %}
         {% set row_bg = 'background:#fff5f5' %}
+      {% elif row.row_type == 'unreachable' %}
+        {% set row_bg = 'background:#f7fafc;color:#a0aec0' %}
       {% elif loop.index is odd %}
         {% set row_bg = 'background:#f7fafc' %}
       {% else %}
         {% set row_bg = '' %}
       {% endif %}
       <tr style="border-bottom:1px solid #e2e8f0;{{ row_bg }}">
+        {% if row.row_type == 'trip' %}
         <td style="padding:0.6rem 0.8rem;font-weight:600">
-          {{ trip.depart_bristol }}
+          {{ row.depart_bristol }}
-          {% if trip.headcode %}<br><span style="font-size:0.75rem;font-weight:400;color:#718096">{{ trip.headcode }}</span>{% endif %}
+          {% if row.headcode %}<br><span style="font-size:0.75rem;font-weight:400;color:#718096">{{ row.headcode }}</span>{% endif %}
         </td>
         <td style="padding:0.6rem 0.8rem">
-          {{ trip.arrive_paddington }}
+          {{ row.arrive_paddington }}
-          <span style="font-size:0.8rem;color:#718096">({{ trip.gwr_duration }})</span>
+          <span style="font-size:0.8rem;color:#718096">({{ row.gwr_duration }})</span>
+        </td>
+        <td style="padding:0.6rem 0.8rem;white-space:nowrap">
+          £{{ "%.2f"|format(row.ticket_price) }}
+          <br><span style="font-size:0.75rem;color:#718096">{{ row.ticket_name }}</span>
         </td>
         <td style="padding:0.6rem 0.8rem;color:#4a5568">
-          {{ trip.connection_duration }}
+          {{ row.connection_duration }}
         </td>
         <td style="padding:0.6rem 0.8rem;font-weight:600">
-          {{ trip.depart_st_pancras }}
+          {{ row.depart_st_pancras }}
-          {% if trip.train_number %}<br><span style="font-size:0.75rem;font-weight:400;color:#718096">{{ trip.train_number }}</span>{% endif %}
+          {% if row.train_number %}<br><span style="font-size:0.75rem;font-weight:400;color:#718096">{{ row.train_number }}</span>{% endif %}
         </td>
         <td style="padding:0.6rem 0.8rem">
-          {{ trip.arrive_destination }}
+          {{ row.arrive_destination }}
           <span style="font-weight:400;color:#718096;font-size:0.85em">(CET)</span>
         </td>
         <td style="padding:0.6rem 0.8rem;font-weight:600">
-          {% if trip.total_minutes == best_mins and trips | length > 1 %}
+          {% if row.total_minutes <= best_mins + 5 and trips | length > 1 %}
-            <span style="color:#276749" title="Fastest option">{{ trip.total_duration }} ⚡</span>
+            <span style="color:#276749" title="Fastest option">{{ row.total_duration }} ⚡</span>
-          {% elif trip.total_minutes == worst_mins and trips | length > 1 %}
+          {% elif row.total_minutes >= worst_mins - 5 and trips | length > 1 %}
-            <span style="color:#c53030" title="Slowest option">{{ trip.total_duration }} 🐢</span>
+            <span style="color:#c53030" title="Slowest option">{{ row.total_duration }} 🐢</span>
           {% else %}
-            <span style="color:#00539f">{{ trip.total_duration }}</span>
+            <span style="color:#00539f">{{ row.total_duration }}</span>
           {% endif %}
         </td>
+        {% else %}
+        <td style="padding:0.6rem 0.8rem;font-weight:600">&mdash;</td>
+        <td style="padding:0.6rem 0.8rem">&mdash;</td>
+        <td style="padding:0.6rem 0.8rem">&mdash;</td>
+        <td style="padding:0.6rem 0.8rem">Unavailable</td>
+        <td style="padding:0.6rem 0.8rem;font-weight:600">
+          {{ row.depart_st_pancras }}
+          {% if row.train_number %}<br><span style="font-size:0.75rem;font-weight:400;color:#a0aec0">{{ row.train_number }}</span>{% endif %}
+        </td>
+        <td style="padding:0.6rem 0.8rem">
+          {{ row.arrive_destination }}
+          <span style="font-weight:400;color:#a0aec0;font-size:0.85em">(CET)</span>
+        </td>
+        <td style="padding:0.6rem 0.8rem;font-weight:600">
+          <span title="No same-day Bristol connection">Unavailable from Bristol</span>
+        </td>
+        {% endif %}
       </tr>
       {% endfor %}
     </tbody>
@@ -150,6 +183,9 @@
 
 <p style="margin-top:1rem;font-size:0.82rem;color:#718096">
   Paddington &rarr; St&nbsp;Pancras connection: {{ min_connection }}&ndash;{{ max_connection }}&nbsp;min.
+  {% if unreachable_morning_services %}
+  Morning means Eurostar departures before 12:00 from St&nbsp;Pancras.
+  {% endif %}
   Eurostar times are from the general timetable and may vary; always check
   <a href="{{ eurostar_url }}" target="_blank" rel="noopener">eurostar.com</a> to book.
   &nbsp;&middot;&nbsp;

tests/test_app.py

@@ -89,3 +89,166 @@ def test_results_title_and_social_meta_include_destination(monkeypatch):
         'to Lille Europe on Friday 10 April 2026 via Paddington, St Pancras, and Eurostar.">'
     ) in html
     assert '<meta property="og:url" content="http://localhost/results/lille/2026-04-10?min_connection=60&amp;max_connection=120">' in html
+
+
+def test_results_marks_trips_within_five_minutes_of_fastest_and_slowest(monkeypatch):
+    monkeypatch.setattr(app_module, 'get_cached', lambda key: None)
+    monkeypatch.setattr(app_module, 'set_cached', lambda key, data: None)
+    monkeypatch.setattr(
+        app_module.rtt_scraper,
+        'fetch',
+        lambda travel_date, user_agent: [
+            {'depart_bristol': '07:00', 'arrive_paddington': '08:30', 'headcode': '1A01'},
+            {'depart_bristol': '07:05', 'arrive_paddington': '08:36', 'headcode': '1A02'},
+            {'depart_bristol': '07:10', 'arrive_paddington': '08:46', 'headcode': '1A03'},
+            {'depart_bristol': '07:15', 'arrive_paddington': '08:56', 'headcode': '1A04'},
+            {'depart_bristol': '07:20', 'arrive_paddington': '09:06', 'headcode': '1A05'},
+        ],
+    )
+    monkeypatch.setattr(
+        app_module.eurostar_scraper,
+        'fetch',
+        lambda destination, travel_date, user_agent: [
+            {
+                'depart_st_pancras': '09:30',
+                'arrive_destination': '11:50',
+                'destination': destination,
+                'train_number': 'ES 1001',
+            },
+            {
+                'depart_st_pancras': '09:40',
+                'arrive_destination': '12:00',
+                'destination': destination,
+                'train_number': 'ES 1002',
+            },
+            {
+                'depart_st_pancras': '09:50',
+                'arrive_destination': '12:20',
+                'destination': destination,
+                'train_number': 'ES 1003',
+            },
+            {
+                'depart_st_pancras': '10:00',
+                'arrive_destination': '12:35',
+                'destination': destination,
+                'train_number': 'ES 1004',
+            },
+            {
+                'depart_st_pancras': '10:10',
+                'arrive_destination': '12:45',
+                'destination': destination,
+                'train_number': 'ES 1005',
+            },
+        ],
+    )
+    monkeypatch.setattr(
+        app_module.eurostar_scraper,
+        'timetable_url',
+        lambda destination: f'https://example.test/{destination.lower().replace(" ", "-")}',
+    )
+    client = _client()
+
+    resp = client.get('/results/paris/2026-04-10?min_connection=60&max_connection=120')
+    html = resp.get_data(as_text=True)
+
+    assert resp.status_code == 200
+    assert html.count('title="Fastest option"') == 2
+    assert html.count('title="Slowest option"') == 2
+    assert '4h 50m ⚡' in html
+    assert '4h 55m ⚡' in html
+    assert '5h 20m 🐢' in html
+    assert '5h 25m 🐢' in html
+    assert '5h 10m ⚡' not in html
+    assert '5h 10m 🐢' not in html
+
+
+def test_results_shows_unreachable_morning_eurostar_services(monkeypatch):
+    monkeypatch.setattr(app_module, 'get_cached', lambda key: None)
+    monkeypatch.setattr(app_module, 'set_cached', lambda key, data: None)
+    monkeypatch.setattr(
+        app_module.rtt_scraper,
+        'fetch',
+        lambda travel_date, user_agent: [
+            {'depart_bristol': '07:00', 'arrive_paddington': '08:45', 'headcode': '1A23'},
+        ],
+    )
+    monkeypatch.setattr(
+        app_module.eurostar_scraper,
+        'fetch',
+        lambda destination, travel_date, user_agent: [
+            {
+                'depart_st_pancras': '09:30',
+                'arrive_destination': '12:00',
+                'destination': destination,
+                'train_number': 'ES 9001',
+            },
+            {
+                'depart_st_pancras': '10:15',
+                'arrive_destination': '13:40',
+                'destination': destination,
+                'train_number': 'ES 9002',
+            },
+            {
+                'depart_st_pancras': '12:30',
+                'arrive_destination': '15:55',
+                'destination': destination,
+                'train_number': 'ES 9003',
+            },
+        ],
+    )
+    monkeypatch.setattr(
+        app_module.eurostar_scraper,
+        'timetable_url',
+        lambda destination: f'https://example.test/{destination.lower().replace(" ", "-")}',
+    )
+    client = _client()
+
+    resp = client.get('/results/paris/2026-04-10?min_connection=60&max_connection=120')
+    html = resp.get_data(as_text=True)
+
+    assert resp.status_code == 200
+    assert '1 morning service unavailable from Bristol' in html
+    assert '09:30' in html
+    assert 'ES 9001' in html
+    assert 'Unavailable from Bristol' in html
+    assert 'Morning means Eurostar departures before 12:00 from St&nbsp;Pancras.' in html
+    assert html.index('09:30') < html.index('10:15')
+
+
+def test_results_can_show_only_unreachable_morning_services(monkeypatch):
+    monkeypatch.setattr(app_module, 'get_cached', lambda key: None)
+    monkeypatch.setattr(app_module, 'set_cached', lambda key, data: None)
+    monkeypatch.setattr(
+        app_module.rtt_scraper,
+        'fetch',
+        lambda travel_date, user_agent: [
+            {'depart_bristol': '07:00', 'arrive_paddington': '08:45', 'headcode': '1A23'},
+        ],
+    )
+    monkeypatch.setattr(
+        app_module.eurostar_scraper,
+        'fetch',
+        lambda destination, travel_date, user_agent: [
+            {
+                'depart_st_pancras': '09:30',
+                'arrive_destination': '12:00',
+                'destination': destination,
+                'train_number': 'ES 9001',
+            },
+        ],
+    )
+    monkeypatch.setattr(
+        app_module.eurostar_scraper,
+        'timetable_url',
+        lambda destination: f'https://example.test/{destination.lower().replace(" ", "-")}',
+    )
+    client = _client()
+
+    resp = client.get('/results/paris/2026-04-10?min_connection=60&max_connection=120')
+    html = resp.get_data(as_text=True)
+
+    assert resp.status_code == 200
+    assert 'No valid journeys found.' not in html
+    assert '1 morning service unavailable from Bristol' in html
+    assert '09:30' in html
+    assert 'Unavailable from Bristol' in html

tests/test_trip_planner.py

@@ -1,5 +1,5 @@
 import pytest
-from trip_planner import combine_trips, _fmt_duration
+from trip_planner import combine_trips, find_unreachable_morning_eurostars, _fmt_duration, cheapest_gwr_ticket
 
 DATE = '2026-03-30'
 
@@ -129,3 +129,88 @@ def test_connection_duration_in_trip():
     # arrive Paddington 08:45, depart St Pancras 10:01 → 1h 16m
     trips = combine_trips([GWR_FAST], [ES_PARIS], DATE)
     assert trips[0]['connection_duration'] == '1h 16m'
+
+
+def test_unreachable_morning_eurostars_lists_only_unreachable_morning_services():
+    gwr = [
+        {'depart_bristol': '07:00', 'arrive_paddington': '08:45'},
+    ]
+    eurostar = [
+        {'depart_st_pancras': '09:30', 'arrive_destination': '12:00', 'destination': 'Paris Gare du Nord', 'train_number': 'ES 9001'},
+        {'depart_st_pancras': '10:15', 'arrive_destination': '13:40', 'destination': 'Paris Gare du Nord', 'train_number': 'ES 9002'},
+        {'depart_st_pancras': '12:30', 'arrive_destination': '15:55', 'destination': 'Paris Gare du Nord', 'train_number': 'ES 9003'},
+    ]
+
+    unreachable = find_unreachable_morning_eurostars(gwr, eurostar, DATE)
+
+    assert [service['depart_st_pancras'] for service in unreachable] == ['09:30']
+
+
+# ---------------------------------------------------------------------------
+# cheapest_gwr_ticket — Bristol Temple Meads → Paddington
+# ---------------------------------------------------------------------------
+
+# 2026-03-30 is a Monday; 2026-03-28 is a Saturday
+
+def test_cheapest_ticket_weekday_super_off_peak_morning():
+    # 05:00 on Monday: dep ≤ 05:04 → Super Off-Peak
+    t = cheapest_gwr_ticket('05:00', '2026-03-30')
+    assert t['ticket'] == 'Super Off-Peak'
+    assert t['price'] == 45.00
+
+def test_cheapest_ticket_weekday_anytime_window():
+    # 07:00 on Monday: 05:05–08:25 → Anytime only
+    t = cheapest_gwr_ticket('07:00', '2026-03-30')
+    assert t['ticket'] == 'Anytime'
+    assert t['price'] == 138.70
+
+def test_cheapest_ticket_weekday_off_peak():
+    # 08:30 on Monday: dep ≥ 08:26 but < 09:58 → Off-Peak
+    t = cheapest_gwr_ticket('08:30', '2026-03-30')
+    assert t['ticket'] == 'Off-Peak'
+    assert t['price'] == 63.60
+
+def test_cheapest_ticket_weekday_super_off_peak_late():
+    # 10:00 on Monday: dep ≥ 09:58 → Super Off-Peak
+    t = cheapest_gwr_ticket('10:00', '2026-03-30')
+    assert t['ticket'] == 'Super Off-Peak'
+    assert t['price'] == 45.00
+
+def test_cheapest_ticket_boundary_super_off_peak_cutoff():
+    # 05:04 is last valid minute for early Super Off-Peak
+    assert cheapest_gwr_ticket('05:04', '2026-03-30')['ticket'] == 'Super Off-Peak'
+    # 05:05 falls into the Anytime window (off-peak starts at 08:26)
+    assert cheapest_gwr_ticket('05:05', '2026-03-30')['ticket'] == 'Anytime'
+
+def test_cheapest_ticket_boundary_off_peak_start():
+    assert cheapest_gwr_ticket('08:25', '2026-03-30')['ticket'] == 'Anytime'
+    assert cheapest_gwr_ticket('08:26', '2026-03-30')['ticket'] == 'Off-Peak'
+
+def test_cheapest_ticket_boundary_super_off_peak_resumes():
+    assert cheapest_gwr_ticket('09:57', '2026-03-30')['ticket'] == 'Off-Peak'
+    assert cheapest_gwr_ticket('09:58', '2026-03-30')['ticket'] == 'Super Off-Peak'
+
+def test_cheapest_ticket_weekend_always_super_off_peak():
+    # Saturday — no restrictions
+    t = cheapest_gwr_ticket('07:00', '2026-03-28')
+    assert t['ticket'] == 'Super Off-Peak'
+    assert t['price'] == 45.00
+
+def test_combine_trips_includes_ticket_fields():
+    trips = combine_trips([GWR_FAST], [ES_PARIS], DATE)
+    assert len(trips) == 1
+    t = trips[0]
+    assert 'ticket_name' in t
+    assert 'ticket_price' in t
+    assert 'ticket_code' in t
+
+
+def test_unreachable_morning_eurostars_returns_empty_when_morning_service_is_reachable():
+    gwr = [
+        {'depart_bristol': '07:00', 'arrive_paddington': '08:45'},
+    ]
+    eurostar = [
+        {'depart_st_pancras': '10:15', 'arrive_destination': '13:40', 'destination': 'Paris Gare du Nord', 'train_number': 'ES 9002'},
+    ]
+
+    assert find_unreachable_morning_eurostars(gwr, eurostar, DATE) == []

trip_planner.py

@@ -1,15 +1,47 @@
 """
 Combine GWR Bristol→Paddington trains with Eurostar St Pancras→destination trains.
 """
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, time as _time
 
 MIN_CONNECTION_MINUTES = 50
 MAX_CONNECTION_MINUTES = 110
 MAX_GWR_MINUTES = 110
+MORNING_CUTOFF_HOUR = 12
 DATE_FMT = '%Y-%m-%d'
 TIME_FMT = '%H:%M'
 
 
+# Bristol Temple Meads → London Paddington walk-on single fares.
+# Weekday restrictions (Mon–Fri only):
+#   Super Off-Peak (£45.00, SSS): not valid if 05:05 ≤ dep ≤ 09:57
+#   Off-Peak (£63.60, SVS):       not valid if dep < 08:26, except 02:00–05:10
+#   Anytime (£138.70, SDS):       no restrictions
+_TICKET_SUPER_OFF_PEAK = {'ticket': 'Super Off-Peak', 'price': 45.00,   'code': 'SSS'}
+_TICKET_OFF_PEAK       = {'ticket': 'Off-Peak',       'price': 63.60,   'code': 'SVS'}
+_TICKET_ANYTIME        = {'ticket': 'Anytime',        'price': 138.70,  'code': 'SDS'}
+
+
+def cheapest_gwr_ticket(depart_time: str, travel_date: str) -> dict:
+    """
+    Return the cheapest walk-on single for Bristol Temple Meads → Paddington.
+
+    Weekday (Mon–Fri) restrictions derived from the SSS/SVS ticket conditions:
+      Super Off-Peak valid: dep ≤ 05:04  or  dep ≥ 09:58
+      Off-Peak valid:       02:00 ≤ dep ≤ 05:10  or  dep ≥ 08:26
+    Weekends: no restrictions — always Super Off-Peak.
+    """
+    dt = datetime.strptime(f"{travel_date} {depart_time}", f"{DATE_FMT} {TIME_FMT}")
+    if dt.weekday() >= 5:  # Saturday or Sunday
+        return _TICKET_SUPER_OFF_PEAK
+
+    dep = dt.time()
+    if dep <= _time(5, 4) or dep >= _time(9, 58):
+        return _TICKET_SUPER_OFF_PEAK
+    if dep >= _time(8, 26):
+        return _TICKET_OFF_PEAK
+    return _TICKET_ANYTIME
+
+
 def _parse_dt(date: str, time: str) -> datetime:
     return datetime.strptime(f"{date} {time}", f"{DATE_FMT} {TIME_FMT}")
 
@@ -23,6 +55,36 @@ def _fmt_duration(minutes: int) -> str:
     return f"{m}m"
 
 
+def _is_viable_connection(
+    gwr: dict,
+    eurostar: dict,
+    travel_date: str,
+    min_connection_minutes: int,
+    max_connection_minutes: int,
+) -> tuple[datetime, datetime, datetime, datetime] | None:
+    try:
+        arr_pad = _parse_dt(travel_date, gwr['arrive_paddington'])
+        dep_bri = _parse_dt(travel_date, gwr['depart_bristol'])
+        dep_stp = _parse_dt(travel_date, eurostar['depart_st_pancras'])
+        arr_dest = _parse_dt(travel_date, eurostar['arrive_destination'])
+    except (ValueError, KeyError):
+        return None
+
+    if int((arr_pad - dep_bri).total_seconds() / 60) > MAX_GWR_MINUTES:
+        return None
+
+    if arr_dest < dep_stp:
+        arr_dest += timedelta(days=1)
+
+    connection_minutes = (dep_stp - arr_pad).total_seconds() / 60
+    if connection_minutes < min_connection_minutes:
+        return None
+    if connection_minutes > max_connection_minutes:
+        return None
+
+    return dep_bri, arr_pad, dep_stp, arr_dest
+
+
 def combine_trips(
     gwr_trains: list[dict],
     eurostar_trains: list[dict],
@@ -46,35 +108,21 @@ def combine_trips(
     trips = []
 
     for gwr in gwr_trains:
-        try:
-            arr_pad = _parse_dt(travel_date, gwr['arrive_paddington'])
-            dep_bri = _parse_dt(travel_date, gwr['depart_bristol'])
-        except (ValueError, KeyError):
-            continue
-
-        if int((arr_pad - dep_bri).total_seconds() / 60) > MAX_GWR_MINUTES:
-            continue
-
-        earliest_eurostar = arr_pad + timedelta(minutes=min_connection_minutes)
-
         # Find only the earliest viable Eurostar for this GWR departure
         for es in eurostar_trains:
-            try:
+            connection = _is_viable_connection(
-                dep_stp = _parse_dt(travel_date, es['depart_st_pancras'])
+                gwr,
-                arr_dest = _parse_dt(travel_date, es['arrive_destination'])
+                es,
-            except (ValueError, KeyError):
+                travel_date,
-                continue
+                min_connection_minutes,
-
+                max_connection_minutes,
-            # Eurostar arrives next day? (e.g. night service — unlikely but handle it)
+            )
-            if arr_dest < dep_stp:
+            if not connection:
-                arr_dest += timedelta(days=1)
-
-            if dep_stp < earliest_eurostar:
-                continue
-            if (dep_stp - arr_pad).total_seconds() / 60 > max_connection_minutes:
                 continue
+            dep_bri, arr_pad, dep_stp, arr_dest = connection
 
             total_mins = int((arr_dest - dep_bri).total_seconds() / 60)
+            ticket = cheapest_gwr_ticket(gwr['depart_bristol'], travel_date)
             trips.append({
                 'depart_bristol': gwr['depart_bristol'],
                 'arrive_paddington': gwr['arrive_paddington'],
@@ -87,8 +135,46 @@ def combine_trips(
                 'total_duration': _fmt_duration(total_mins),
                 'total_minutes': total_mins,
                 'destination': es['destination'],
+                'ticket_name': ticket['ticket'],
+                'ticket_price': ticket['price'],
+                'ticket_code': ticket['code'],
             })
             break  # Only the earliest valid Eurostar per GWR departure
 
     trips.sort(key=lambda t: (t['depart_bristol'], t['depart_st_pancras']))
     return trips
+
+
+def find_unreachable_morning_eurostars(
+    gwr_trains: list[dict],
+    eurostar_trains: list[dict],
+    travel_date: str,
+    min_connection_minutes: int = MIN_CONNECTION_MINUTES,
+    max_connection_minutes: int = MAX_CONNECTION_MINUTES,
+) -> list[dict]:
+    unreachable = []
+
+    for es in eurostar_trains:
+        try:
+            dep_stp = _parse_dt(travel_date, es['depart_st_pancras'])
+        except (ValueError, KeyError):
+            continue
+
+        if dep_stp.hour >= MORNING_CUTOFF_HOUR:
+            continue
+
+        if any(
+            _is_viable_connection(
+                gwr,
+                es,
+                travel_date,
+                min_connection_minutes,
+                max_connection_minutes,
+            )
+            for gwr in gwr_trains
+        ):
+            continue
+
+        unreachable.append(es)
+
+    return sorted(unreachable, key=lambda s: s['depart_st_pancras'])