{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE QuasiQuotes #-}

module Language.OCaml.PrettyPrinter.StructureItem.Test
  ( test
  , unitTests
  ) where

import Data.String.QQ
-- import Data.Text.Prettyprint.Doc
import Test.Tasty

import Language.OCaml.Parser.Generator.Parser (parseStructureItem)
import Language.OCaml.PrettyPrinter.Internal
import Language.OCaml.PrettyPrinter.TestUtils

structureItemTests :: [String]
structureItemTests =

  [ "type a = _"

  , "type a = 'b"

  , "type a = b"

  , "type a = |"

  , "type a = A"

  , "type a = A of t"

  , "type a = A of t | B of t"

  , "type a = A | B"

  , "type a = A | B | C"

  , "type a = | A | B | C"

  , [s|
type a =
  | B
  | C
  |]

  , "type a_b = {c: float; d: float}"

  , "type a_b = C of D.e_f"

  , [s|
type a =
  | B of C.d_e
  | F
  |]

  , "open A"

  , "open !A"

  , "open !A (* A *)"

  , "module F = Format"

  , [s|
type a_b =
  { foo_bar: float
  ; bar: float }
  |]

  , "type c_d = {a: b; c: d}"

  , "type e_f = G of A.b * C.d_f | H | I"

  , "let a = b"

  , [s|
let some_function = function
  | Constructor _ ->
      Module.some_other_function
  | OtherConstructor _ ->
      OtherModule.other_function
  |]

  , [s|
let string_of_something = function
  | Constructor _ ->
      "some_string"
  |]

  , [s|
let multi_patterns = function
  | Constructor1 foo_bar
  | Constructor2 foo_bar
  | Constructor3 foo_bar ->
      Some foo_bar
  | _ ->
     None
  |]

  , [s|
let rec f =
  let a = b in c
  |]

  , [s|
type 'a binary_tree =
    | Leaf of 'a
    | Tree of 'a binary_tree * 'a binary_tree
  |]

  , [s|
type 'a list =
  | Nil
  | Cons of ('a * 'a list)
  |]

  ]

unitTests :: TestTree
unitTests = testGroup "Language.OCaml.PrettyPrinter.StructureItem" $ []
  ++ map (mkPrettyPrinterTest
          "structureItemPP"
          parseStructureItem
          structureItemPP
         ) structureItemTests

test :: IO ()
test = defaultMain unitTests

-- foo = debugPrettyPrinter parseStructureItem structureItemPP (structureItemTests !! 24)