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module Main where

import Lib ()

main :: IO ()
main = do
  return ()

module Lib
  ( janeElizabethSmith,
  )
where

janeElizabethSmith :: Patient
janeElizabethSmith =
  Patient
    ( NameWithMiddle
        "Jane"
        "Elizabeth"
        "Smith"
    )
    Male
    30
    74
    200
    (BloodType AB Pos)

data Patient = Patient Name Sex Int Int Int BloodType
  deriving (Show)

type FirstName = String

type MiddleName = String

type LastName = String

data Name
  = Name FirstName LastName
  | NameWithMiddle FirstName MiddleName LastName
  deriving (Show)

data Sex = Male | Female
  deriving (Show)

data ABOType = A | B | AB | O
  deriving (Show)

data RhType = Pos | Neg
  deriving (Show)

data BloodType = BloodType ABOType RhType
  deriving (Show)

% stack ghci
Using main module: 1. Package `lesson' component lesson:exe:lesson-exe with main-is file: /Users/…/lesson/app/Main.hs
lesson> initial-build-steps (lib + exe)
The following GHC options are incompatible with GHCi and have not been passed to it: -threaded
Configuring GHCi with the following packages: lesson

* * * * * * * *

Warning: Multiple files use the same module name:
         * Paths_lesson found at the following paths
           * /Users/…/lesson/.stack-work/dist/x86_64-osx/Cabal-3.4.1.0/build/autogen/Paths_lesson.hs (lesson:lib)
           * /Users/…/lesson/.stack-work/dist/x86_64-osx/Cabal-3.4.1.0/build/lesson-exe/autogen/Paths_lesson.hs (lesson:exe:lesson-exe)
* * * * * * * *

GHCi, version 9.0.2: https://www.haskell.org/ghc/  :? for help
macro 'doc' overwrites builtin command.  Use ':def!' to overwrite.
(0.00 secs, 0 bytes)
(0.00 secs, 0 bytes)
Loaded GHCi configuration from /Users/…/.ghc/ghci.conf
[1 of 3] Compiling Lib              ( /Users/…/lesson/src/Lib.hs, interpreted )
[2 of 3] Compiling Main             ( /Users/…/lesson/app/Main.hs, interpreted )
[3 of 3] Compiling Paths_lesson     ( /Users/…/lesson/.stack-work/dist/x86_64-osx/Cabal-3.4.1.0/build/autogen/Paths_lesson.hs, interpreted )
Ok, three modules loaded.
Loaded GHCi configuration from /private/var/folders/wj/52wjq8dn0fj1qltsnx3xxpnh0000gn/T/haskell-stack-ghci/4e370d31/ghci-script
*Main Lib Paths_lesson
λ> janeElizabethSmith 
Patient (NameWithMiddle "Jane" "Elizabeth" "Smith") Male 30 74 200 (BloodType AB Pos)
it :: Lib.Patient
(0.02 secs, 579,784 bytes)
*Main Lib Paths_lesson
λ> :quit
Leaving GHCi.
%