{-# LANGUAGE OverloadedStrings #-}

module Data.WktLineSpec where

import           Control.Lens    ((^?), (^?!))
import qualified Data.Geospatial as Geospatial
import qualified Data.LineString as LineString
import qualified Data.Maybe      as Maybe
import qualified Data.Sequence   as Sequence
import           Test.Hspec      (Spec, describe, it, shouldBe, shouldSatisfy)
import qualified Text.Trifecta   as Trifecta

import qualified Data.Wkt        as Wkt

spec :: Spec
spec = do
  testLines
  testMultiLines

testLines :: Spec
testLines =
  describe "simple lines" $ do
    it "Parse incomplete" $
      Wkt.parseString Wkt.lineString "linestring" `shouldSatisfy` (Maybe.isJust . flip (^?) Trifecta._Failure)
    it "Parse empty" $
      Wkt.parseString Wkt.lineString "linestring empty" ^?! Trifecta._Success `shouldBe` Wkt.emptyLine
    it "Parse not points" $
      Wkt.parseString Wkt.lineString "linestring (abc)" `shouldSatisfy` (Maybe.isJust . flip (^?) Trifecta._Failure)
    it "Parse something" $
      Wkt.parseString Wkt.lineString "linestring (1.0 2.0, 1.0 2.5, 1.0 3.0)" ^?! Trifecta._Success `shouldBe` exampleLine
    it "Parse spaces" $
      Wkt.parseString Wkt.lineString "linestring ( 1.0 2.0,1.0 2.5, 1.0  3.0)" ^?! Trifecta._Success `shouldBe` exampleLine

testMultiLines :: Spec
testMultiLines =
  describe "simple multilines" $ do
    it "Parse incomplete" $
      Wkt.parseString Wkt.multiLineString "multilinestring" `shouldSatisfy` (Maybe.isJust . flip (^?) Trifecta._Failure)
    it "Parse empty" $
      Wkt.parseString Wkt.multiLineString "multilinestring empty" ^?! Trifecta._Success `shouldBe` Wkt.emptyMultiLine
    it "Parse not points" $
      Wkt.parseString Wkt.multiLineString "multilinestring (abc)" `shouldSatisfy` (Maybe.isJust . flip (^?) Trifecta._Failure)
    it "Parse something" $
      Wkt.parseString Wkt.multiLineString "multilinestring ((1.0 2.0, 1.0 2.5, 1.0 3.0))" ^?! Trifecta._Success `shouldBe` exampleMultiLine
    it "Parse spaces" $
      Wkt.parseString Wkt.multiLineString "multilinestring ( ( 1.0 2.0,1.0 2.5, 1.0  3.0) )" ^?! Trifecta._Success `shouldBe` exampleMultiLine

exampleLine :: Geospatial.GeoLine
exampleLine = Geospatial.GeoLine exampleLineString

exampleMultiLine :: Geospatial.GeoMultiLine
exampleMultiLine =  Geospatial.GeoMultiLine (Sequence.singleton exampleLineString)

exampleLineString :: LineString.LineString Geospatial.GeoPositionWithoutCRS
exampleLineString = LineString.makeLineString (Geospatial.GeoPointXY (Geospatial.PointXY 1.0 2.0)) (Geospatial.GeoPointXY (Geospatial.PointXY 1.0 2.5)) (Sequence.singleton (Geospatial.GeoPointXY (Geospatial.PointXY 1.0 3.0)))