import PMInstance
import PMDefaults
import ProposalMatcher
import System.IO
import Data.Array.IArray
import Data.Array.Unboxed
import ArrayStuff
import TSV

-- Command-line interface with simple tab-separated input/output formats.
-- ./match <example.in

main = do
	incsv <- hGetContents stdin
	-- handle errors another day, or let the platform do it
	let inll = parseTSV incsv
	let loadList = head inll
	let numRvrs = length loadList
	let loadA = listArray (0, numRvrs-1) (map read loadList)
	let numProps = length (tail inll)
	-- explicit type on the next line appears to be necessary
	let pxarr = listOfListsToArray2D (tail inll) :: Array (Int,Int) String
	-- careful, we end up transposing the array in here
	let prefA = funcArray ((0,0), (numRvrs-1,numProps-1)) (\(i,j) -> read (pxarr ! (j, i)))
	let theInst = PMInstance numRvrs numProps loadA prefA
	let PMatching theMatching = doMatching pmDefaults theInst
	hPutStr stdout $ formatTSV $ map (\(i, j) -> map show [i, j]) theMatching