import strutils, sequtils, os, procedures, strformat
# TODO: while loop to check if inputs are valid

var operation: string
# if command is "dot" or "cross" preform that operation
if paramStr(0).endsWith("/dot") or paramStr(0) == "dot":
    operation = "dot"
    echo "Calculating the dot product:"
elif paramStr(0).endsWith("/cross") or paramStr(0) == "cross":
    operation = "cross"
    echo "Calculating the cross product:"
else:
    echo "Would you like to preform the dot or cross product?"
    operation = readLine(stdin)

# record first matrix
echo "Enter number of rows in the first matrix:"
let r1: int = parseInt(readLine(stdin)) 
echo "Enter number of columns in the first matrix:"
let c1: int = parseInt(readLine(stdin))
var m1 = newSeqWith(r1, newSeq[float](c1))
procedures.fillMatrix(m1, r1, c1)

echo ""

# record second matrix
echo "Enter number of rows in the second matrix:"
let r2: int = parseInt(readLine(stdin))
echo "Enter number of columns in the second matrix:"
let c2: int = parseInt(readLine(stdin))
var m2 = newSeqWith(r2, newSeq[float](c2))
procedures.fillMatrix(m2, r2, c2)

# resultent matrix
var m = newSeqWith(0, newSeq[float](0))

case operation:
    of "dot":
        m = dot(m1, m2)  # calculate dot product (in procedures)
    of "cross":
        echo "*do cross product*" # TODO: calculate cross product (in procedures)
    else:
        quit "Invalid matrix operation!", QuitFailure

echo "\nFirst matrix is:"
printMatrix(m1)

echo "\nSecond matrix is:"
printMatrix(m2)  

echo "\nResult matrix is:"
printMatrix(m)