TfL tube line status

modules/tfl.py

@@ -4,6 +4,9 @@ import Utils
 URL_BUS = "https://api.tfl.gov.uk/StopPoint/%s/Arrivals"
 URL_BUS_SEARCH = "https://api.tfl.gov.uk/StopPoint/Search/%s"
 
+URL_LINE = "https://api.tfl.gov.uk/Line/Mode/tube/Status"
+LINE_NAMES = ["bakerloo", "central", "circle", "district", "hammersmith and city", "jubilee", "metropolitan", "piccadilly", "victoria", "waterloo and city"]
+
 class Module(object):
     _name = "TFL"
     def __init__(self, bot):
@@ -12,6 +15,10 @@ class Module(object):
             ).hook(self.bus, min_args=1,
             help="Get bus due times for a TfL bus stop",
             usage="<stop_id>")
+        bot.events.on("received").on("command").on("tflline"
+            ).hook(self.line,
+            help="Get line status for TfL underground lines",
+            usage="<line_name>")
 
     def bus(self, event):
         app_id = self.bot.config["tfl-api-id"]
@@ -62,3 +69,42 @@ class Module(object):
                 event["stderr"].write("Bus ID '%s' unknown" % stop_id)
         else:
             event["stderr"].write("Please provide a numeric bus stop ID")
+
+    def line(self, event):
+        app_id = self.bot.config["tfl-api-id"]
+        app_key = self.bot.config["tfl-api-key"]
+
+        lines = Utils.get_url(URL_LINE, get_params={
+                "app_id": app_id, "app_key": app_key}, json=True)
+        statuses = []
+        for line in lines:
+            for status in line["lineStatuses"]:
+                entry = {
+                        "id": line["id"],
+                        "name": line["name"],
+                        "severity": status["statusSeverity"],
+                        "description": status["statusSeverityDescription"],
+                        "reason": status.get("reason")
+                        }
+                statuses.append(entry)
+        statuses = sorted(statuses, key=lambda line: line["severity"])
+        combined = collections.OrderedDict()
+        for status in statuses:
+            if not status["description"] in combined:
+                combined[status["description"]] = []
+            combined[status["description"]].append(status)
+        result = ""
+        for k, v in combined.items():
+            result += k + ": "
+            result += ", ".join(status["name"] for status in v)
+            result += "; "
+        if event["args"]:
+            result = ""
+            for status in statuses:
+                for arg in event["args_split"]:
+                    if arg.lower() in status["name"].lower():
+                        result += "%s: %s (%d) '%s'; " % (status["name"], status["description"], status["severity"], status["reason"])
+        if result:
+            event["stdout"].write(result[:-2])
+        else:
+            event["stderr"].write("No results")