gtfs realtime proof of concept

this adds a package for protobuf stuff, generated via hprotoc. Seems to
work kinda fine?

(the generated API is horrible though, will have to write some wrappers
for that)

1 files changed, 101 insertions, 0 deletions

diff --git a/gtfs/GTFS/Realtime/TripUpdate/StopTimeEvent.hs b/gtfs/GTFS/Realtime/TripUpdate/StopTimeEvent.hs
new file mode 100644
index 0000000..0005e4c
--- /dev/null
+++ b/gtfs/GTFS/Realtime/TripUpdate/StopTimeEvent.hs
@@ -0,0 +1,101 @@
+{-# LANGUAGE BangPatterns, DataKinds, DeriveDataTypeable, DeriveGeneric, FlexibleInstances, MultiParamTypeClasses, OverloadedStrings
+ #-}
+{-# OPTIONS_GHC  -w #-}
+module GTFS.Realtime.TripUpdate.StopTimeEvent (StopTimeEvent(..)) where
+import Prelude ((+), (/), (++), (.), (==), (<=), (&&))
+import qualified Prelude as Prelude'
+import qualified Data.List as Prelude'
+import qualified Data.Typeable as Prelude'
+import qualified GHC.Generics as Prelude'
+import qualified Data.Data as Prelude'
+import qualified Text.ProtocolBuffers.Header as P'
+
+data StopTimeEvent = StopTimeEvent{delay :: !(P'.Maybe P'.Int32), time :: !(P'.Maybe P'.Int64), uncertainty :: !(P'.Maybe P'.Int32),
+                                   ext'field :: !(P'.ExtField)}
+                     deriving (Prelude'.Show, Prelude'.Eq, Prelude'.Ord, Prelude'.Typeable, Prelude'.Data, Prelude'.Generic)
+
+instance P'.ExtendMessage StopTimeEvent where
+  getExtField = ext'field
+  putExtField e'f msg = msg{ext'field = e'f}
+  validExtRanges msg = P'.extRanges (P'.reflectDescriptorInfo msg)
+
+instance P'.Mergeable StopTimeEvent where
+  mergeAppend (StopTimeEvent x'1 x'2 x'3 x'4) (StopTimeEvent y'1 y'2 y'3 y'4)
+   = let !z'1 = P'.mergeAppend x'1 y'1
+         !z'2 = P'.mergeAppend x'2 y'2
+         !z'3 = P'.mergeAppend x'3 y'3
+         !z'4 = P'.mergeAppend x'4 y'4
+      in StopTimeEvent z'1 z'2 z'3 z'4
+
+instance P'.Default StopTimeEvent where
+  defaultValue = StopTimeEvent P'.defaultValue P'.defaultValue P'.defaultValue P'.defaultValue
+
+instance P'.Wire StopTimeEvent where
+  wireSize ft' self'@(StopTimeEvent x'1 x'2 x'3 x'4)
+   = case ft' of
+       10 -> calc'Size
+       11 -> P'.prependMessageSize calc'Size
+       _ -> P'.wireSizeErr ft' self'
+    where
+        calc'Size = (P'.wireSizeOpt 1 5 x'1 + P'.wireSizeOpt 1 3 x'2 + P'.wireSizeOpt 1 5 x'3 + P'.wireSizeExtField x'4)
+  wirePutWithSize ft' self'@(StopTimeEvent x'1 x'2 x'3 x'4)
+   = case ft' of
+       10 -> put'Fields
+       11 -> put'FieldsSized
+       _ -> P'.wirePutErr ft' self'
+    where
+        put'Fields
+         = P'.sequencePutWithSize
+            [P'.wirePutOptWithSize 8 5 x'1, P'.wirePutOptWithSize 16 3 x'2, P'.wirePutOptWithSize 24 5 x'3,
+             P'.wirePutExtFieldWithSize x'4]
+        put'FieldsSized
+         = let size' = Prelude'.fst (P'.runPutM put'Fields)
+               put'Size
+                = do
+                    P'.putSize size'
+                    Prelude'.return (P'.size'WireSize size')
+            in P'.sequencePutWithSize [put'Size, put'Fields]
+  wireGet ft'
+   = case ft' of
+       10 -> P'.getBareMessageWith (P'.catch'Unknown' P'.discardUnknown update'Self)
+       11 -> P'.getMessageWith (P'.catch'Unknown' P'.discardUnknown update'Self)
+       _ -> P'.wireGetErr ft'
+    where
+        update'Self wire'Tag old'Self
+         = case wire'Tag of
+             8 -> Prelude'.fmap (\ !new'Field -> old'Self{delay = Prelude'.Just new'Field}) (P'.wireGet 5)
+             16 -> Prelude'.fmap (\ !new'Field -> old'Self{time = Prelude'.Just new'Field}) (P'.wireGet 3)
+             24 -> Prelude'.fmap (\ !new'Field -> old'Self{uncertainty = Prelude'.Just new'Field}) (P'.wireGet 5)
+             _ -> let (field'Number, wire'Type) = P'.splitWireTag wire'Tag in
+                   if Prelude'.or [1000 <= field'Number && field'Number <= 1999, 9000 <= field'Number && field'Number <= 9999] then
+                    P'.loadExtension field'Number wire'Type old'Self else P'.unknown field'Number wire'Type old'Self
+
+instance P'.MessageAPI msg' (msg' -> StopTimeEvent) StopTimeEvent where
+  getVal m' f' = f' m'
+
+instance P'.GPB StopTimeEvent
+
+instance P'.ReflectDescriptor StopTimeEvent where
+  getMessageInfo _ = P'.GetMessageInfo (P'.fromDistinctAscList []) (P'.fromDistinctAscList [8, 16, 24])
+  reflectDescriptorInfo _
+   = Prelude'.read
+      "DescriptorInfo {descName = ProtoName {protobufName = FIName \".transit_realtime.TripUpdate.StopTimeEvent\", haskellPrefix = [], parentModule = [MName \"GTFS\",MName \"Realtime\",MName \"TripUpdate\"], baseName = MName \"StopTimeEvent\"}, descFilePath = [\"GTFS\",\"Realtime\",\"TripUpdate\",\"StopTimeEvent.hs\"], isGroup = False, fields = fromList [FieldInfo {fieldName = ProtoFName {protobufName' = FIName \".transit_realtime.TripUpdate.StopTimeEvent.delay\", haskellPrefix' = [], parentModule' = [MName \"GTFS\",MName \"Realtime\",MName \"TripUpdate\",MName \"StopTimeEvent\"], baseName' = FName \"delay\", baseNamePrefix' = \"\"}, fieldNumber = FieldId {getFieldId = 1}, wireTag = WireTag {getWireTag = 8}, packedTag = Nothing, wireTagLength = 1, isPacked = False, isRequired = False, canRepeat = False, mightPack = False, typeCode = FieldType {getFieldType = 5}, typeName = Nothing, hsRawDefault = Nothing, hsDefault = Nothing, isMapField = False, mapKeyVal = Nothing},FieldInfo {fieldName = ProtoFName {protobufName' = FIName \".transit_realtime.TripUpdate.StopTimeEvent.time\", haskellPrefix' = [], parentModule' = [MName \"GTFS\",MName \"Realtime\",MName \"TripUpdate\",MName \"StopTimeEvent\"], baseName' = FName \"time\", baseNamePrefix' = \"\"}, fieldNumber = FieldId {getFieldId = 2}, wireTag = WireTag {getWireTag = 16}, packedTag = Nothing, wireTagLength = 1, isPacked = False, isRequired = False, canRepeat = False, mightPack = False, typeCode = FieldType {getFieldType = 3}, typeName = Nothing, hsRawDefault = Nothing, hsDefault = Nothing, isMapField = False, mapKeyVal = Nothing},FieldInfo {fieldName = ProtoFName {protobufName' = FIName \".transit_realtime.TripUpdate.StopTimeEvent.uncertainty\", haskellPrefix' = [], parentModule' = [MName \"GTFS\",MName \"Realtime\",MName \"TripUpdate\",MName \"StopTimeEvent\"], baseName' = FName \"uncertainty\", baseNamePrefix' = \"\"}, fieldNumber = FieldId {getFieldId = 3}, wireTag = WireTag {getWireTag = 24}, packedTag = Nothing, wireTagLength = 1, isPacked = False, isRequired = False, canRepeat = False, mightPack = False, typeCode = FieldType {getFieldType = 5}, typeName = Nothing, hsRawDefault = Nothing, hsDefault = Nothing, isMapField = False, mapKeyVal = Nothing}], descOneofs = fromList [], keys = fromList [], extRanges = [(FieldId {getFieldId = 1000},FieldId {getFieldId = 1999}),(FieldId {getFieldId = 9000},FieldId {getFieldId = 9999})], knownKeys = fromList [], storeUnknown = False, lazyFields = False, makeLenses = False, jsonInstances = False, mapEntry = False}"
+
+instance P'.TextType StopTimeEvent where
+  tellT = P'.tellSubMessage
+  getT = P'.getSubMessage
+
+instance P'.TextMsg StopTimeEvent where
+  textPut msg
+   = do
+       P'.tellT "delay" (delay msg)
+       P'.tellT "time" (time msg)
+       P'.tellT "uncertainty" (uncertainty msg)
+  textGet
+   = do
+       mods <- P'.sepEndBy (P'.choice [parse'delay, parse'time, parse'uncertainty]) P'.spaces
+       Prelude'.return (Prelude'.foldl' (\ v f -> f v) P'.defaultValue mods)
+    where
+        parse'delay = Prelude'.fmap (\ v o -> o{delay = v}) (P'.try (P'.getT "delay"))
+        parse'time = Prelude'.fmap (\ v o -> o{time = v}) (P'.try (P'.getT "time"))
+        parse'uncertainty = Prelude'.fmap (\ v o -> o{uncertainty = v}) (P'.try (P'.getT "uncertainty"))
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