module TestDatabase exposing (..)

import Card exposing (CardData, CardDetails, CardPerformanceData, CardType(..), ManaColor(..), ManaCost(..), Power(..))
import Database exposing (Database)
import Expect
import Fuzz exposing (Fuzzer)
import Json.Decode as Decode
import Json.Encode as Encode
import Test exposing (Test, describe, fuzz)


niceFloat : Fuzzer Float
niceFloat =
    Fuzz.floatRange 0 100


fuzzDatabase : Fuzzer Database
fuzzDatabase =
    Fuzz.listOfLengthBetween 1 2 fuzzCardData
        |> Fuzz.map Database.fromCardData


fuzzCardData : Fuzzer CardData
fuzzCardData =
    Fuzz.string
        |> Fuzz.andThen
            (\cardName ->
                Fuzz.constant CardData
                    |> Fuzz.andMap (fuzzCardDetails cardName)
                    |> Fuzz.andMap fuzzCardPerformance
            )


fuzzCardPerformance : Fuzzer CardPerformanceData
fuzzCardPerformance =
    Fuzz.constant CardPerformanceData
        |> Fuzz.andMap Fuzz.int
        |> Fuzz.andMap Fuzz.int
        |> Fuzz.andMap (Fuzz.maybe niceFloat)
        |> Fuzz.andMap (Fuzz.maybe niceFloat)
        |> Fuzz.andMap (Fuzz.maybe (Fuzz.constant 0.5))
        |> Fuzz.andMap (Fuzz.maybe niceFloat)


fuzzCardDetails : String -> Fuzzer CardDetails
fuzzCardDetails name =
    Fuzz.constant (CardDetails name)
        |> Fuzz.andMap Fuzz.int
        |> Fuzz.andMap (Fuzz.constant Creature)
        |> Fuzz.andMap (Fuzz.constant "Creature // Pirate")
        |> Fuzz.andMap (Fuzz.maybe Fuzz.string)
        |> Fuzz.andMap (Fuzz.maybe fuzzPower)
        |> Fuzz.andMap (Fuzz.maybe fuzzPower)
        |> Fuzz.andMap (Fuzz.list fuzzManaColor)
        |> Fuzz.andMap (Fuzz.constant "{X}{R}")
        |> Fuzz.andMap (Fuzz.constant (Just [ X, Color Red ]))
        |> Fuzz.andMap Fuzz.string


fuzzCardType : Fuzzer CardType
fuzzCardType =
    Fuzz.oneOfValues
        [ Creature
        , Instant
        , Sorcery
        , Enchantment
        , Artifact
        , Planeswalker
        , Land
        , Other
        ]


fuzzPower : Fuzzer Power
fuzzPower =
    Fuzz.oneOf
        [ Fuzz.constant VariablePower
        , Fuzz.intAtLeast 0 |> Fuzz.map ConstantPower
        , Fuzz.intAtLeast 0 |> Fuzz.map ConstantPlusVariablePower
        ]


fuzzManaColor : Fuzzer ManaColor
fuzzManaColor =
    Fuzz.oneOfValues
        [ Red
        , Green
        , Blue
        , White
        , Black
        , Colorless
        ]


fuzzManaCost : Fuzzer ManaCost
fuzzManaCost =
    Fuzz.oneOf
        [ Fuzz.constant X
        , Fuzz.constant Y
        , Fuzz.constant Tap
        , Fuzz.constant Pay
        , Fuzz.int |> Fuzz.map AnyColor
        , fuzzManaColor |> Fuzz.map Color
        , fuzzManaColor |> Fuzz.map ColorPay
        , fuzzManaColor |> Fuzz.map TwoOrColor
        , Fuzz.map2 Hybrid fuzzManaColor fuzzManaColor
        , Fuzz.map2 HybridPay fuzzManaColor fuzzManaColor
        ]


suite : Test
suite =
    describe "Database"
        [ fuzz fuzzDatabase "encoder / decoder round trip" <|
            \database ->
                let
                    roundTrip =
                        Database.encode ( "mkm", database )
                            |> Encode.encode 0
                            |> Decode.decodeString Database.decoder
                in
                Expect.equal roundTrip (Ok ( "mkm", Just database ))
        ]