import json
from isl import *
class Scop:
	def __init__(self, filename):
		f = open(filename, "r")
		self.json = json.load(f)
		return
	def __str__(self):
		return json.dumps(self.json, indent=2)
	def __repr__(self):
		return str(self)
	@property
	def statements(self):
		return self.json["statements"]
class Transforms:
	"""
  Create a map that interchanges two dimensions 'A' and 'B'
  numberDimensions: The overall number of dimensions
  dimensionA: The dimension of dimension 'A'
  dimensionB: The dimension of dimension 'B'
  getInterchange(2, 0, 1):
  {[d0, d1] -> [d1, d0]}
  """
	@staticmethod
	def getInterchange(numberDimensions, dimensionA, dimensionB):
		dims = ["d" + str(i) for i in range(numberDimensions)]
		dimString = ",".join(dims)
		changedDims = dims
		first = dims[dimensionA]
		second = dims[dimensionB]
		changedDims[dimensionA] = second
		changedDims[dimensionB] = first
		changedDimString = ",".join(changedDims)
		return Map("{[%s] -> [%s]}" % (dimString, changedDimString))
	"""
  Create a map that strip mines one dimension
  numberDimensions: The overall number of dimensions
  stripMineDim: The dimension to strip mine
  factor: The strip mining factor
  getStripMine(2, 1, 64):
  {[d0, d1] -> [d0, o, d1] : o % 64 = 0 and o <= d1 <= d1 + 63}
  """
	@staticmethod
	def getStripMine(numberDimensions, stripMineDim, factor):
		dims = ["d" + str(i) for i in range(numberDimensions)]
		dimString = ",".join(dims)
		changedDims = dims
		smd = dims[stripMineDim]
		changedDims[stripMineDim] = "o,%s" % smd
		changedDimString = ",".join(changedDims)
		string = "{[%s] -> [%s]: o %% %i = 0 and o <= %s <= o + %i}" % (dimString, changedDimString, factor, smd, factor - 1)
		return Map(string)