-- | Generate test cases for Nim

module TestGen.TestMerkle where

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import Data.Array
import Data.List
import Data.Word

import System.IO

import Merkle
import Goldilocks
import Common

import TestGen.Shared

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intToDigest :: Integer -> Digest
intToDigest k = MkDigest (fromInteger k) 0 0 0 

merkleDigest :: Hash -> Integer -> Digest
merkleDigest hash max = merkleRoot hash $ map intToDigest [1..max]

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printTests :: Hash -> IO ()
printTests hash = hPrintTests stdout hash

hPrintTests :: Handle -> Hash -> IO ()
hPrintTests h hash= hPutStrLn h $ unlines $ 
  [ digests "testcases_merkleroot" (merkleDigest hash) [1..175] ]

writeTests :: Hash -> IO ()
writeTests hash = withFile "merkleTestCases.nim" WriteMode $ \h -> do
  hPutStrLn   h "# generated by TestGen/TestMerkle.hs\n"
  hPutStrLn   h "import goldilocks_hash/types\n"
  hPrintTests h hash

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