From 8209cc28d0404e5351b147f147edda10ee843756 Mon Sep 17 00:00:00 2001
From: Arun Isaac
Date: Tue, 2 Jan 2024 21:49:37 +0000
Subject: Put in special cases to correct slightly misnamed stations.

* rent.scm (lines-at-station): Handle misnamed Paddington and
Hammersmith stations.
---
 rent.scm | 56 ++++++++++++++++++++++++++++++++------------------------
 1 file changed, 32 insertions(+), 24 deletions(-)

(limited to 'rent.scm')

diff --git a/rent.scm b/rent.scm
index 6b64245..2ffdc03 100644
--- a/rent.scm
+++ b/rent.scm
@@ -382,30 +382,38 @@ of actual distances by cycle, and not distance as the crow flies."
 
 (define (lines-at-station station-name)
   "Return a list of tube lines serving @var{station-name}."
-  (let* ((modes (list "dlr" "elizabeth-line" "tube"))
-         (station-id
-          ;; Assume the first search result is the station we are
-          ;; looking for.
-          (json-ref
-           (json-get (string-append %tfl-base-url
-                                    "/StopPoint/Search/"
-                                    (uri-encode station-name)
-                                    "?modes="
-                                    (string-join modes ",")))
-           "matches" 0 "id")))
-    ;; Assume that we actually find tube lines at this station. This
-    ;; may not be the case if the supplied station-name is not
-    ;; actually a tube station.
-    (vector->list
-     (json-ref (find (lambda (mode-group)
-                       (member (json-ref mode-group "modeName")
-                               modes))
-                     (vector->list
-                      (json-ref
-                       (json-get (string-append %tfl-base-url
-                                                "/StopPoint/" station-id))
-                       "lineModeGroups")))
-               "lineIdentifier"))))
+  (cond
+   ;; Correct slightly misnamed stations.
+   ((string=? station-name "Paddington (Hammersmith & City)")
+    (lines-at-station "Paddington"))
+   ((member station-name (list "Hammersmith (District & Piccadilly)"
+                               "Hammersmith (District and Piccadilly)"))
+    (lines-at-station "Hammersmith"))
+   (else
+    (let* ((modes (list "dlr" "elizabeth-line" "tube"))
+           (station-id
+            ;; Assume the first search result is the station we are
+            ;; looking for.
+            (json-ref
+             (json-get (string-append %tfl-base-url
+                                      "/StopPoint/Search/"
+                                      (uri-encode station-name)
+                                      "?modes="
+                                      (string-join modes ",")))
+             "matches" 0 "id")))
+      ;; Assume that we actually find tube lines at this station. This
+      ;; may not be the case if the supplied station-name is not
+      ;; actually a tube station.
+      (vector->list
+       (json-ref (find (lambda (mode-group)
+                         (member (json-ref mode-group "modeName")
+                                 modes))
+                       (vector->list
+                        (json-ref
+                         (json-get (string-append %tfl-base-url
+                                                  "/StopPoint/" station-id))
+                         "lineModeGroups")))
+                 "lineIdentifier"))))))
 
 (define (list-house house)
   "Display details of @var{house} on the current output port."
-- 
cgit v1.2.3