# RUN: %PYTHON %s | FileCheck %s

import gc
from mlir.ir import *


def run(f):
    print("\nTEST:", f.__name__)
    f()
    gc.collect()
    assert Context._get_live_count() == 0
    return f


# CHECK-LABEL: TEST: testIntegerSetCapsule
@run
def testIntegerSetCapsule():
    with Context() as ctx:
        is1 = IntegerSet.get_empty(1, 1, ctx)
    capsule = is1._CAPIPtr
    # CHECK: mlir.ir.IntegerSet._CAPIPtr
    print(capsule)
    is2 = IntegerSet._CAPICreate(capsule)
    assert is1 == is2
    assert is2.context is ctx


# CHECK-LABEL: TEST: testIntegerSetGet
@run
def testIntegerSetGet():
    with Context():
        d0 = AffineDimExpr.get(0)
        d1 = AffineDimExpr.get(1)
        s0 = AffineSymbolExpr.get(0)
        c42 = AffineConstantExpr.get(42)

        # CHECK: (d0, d1)[s0] : (d0 - d1 == 0, s0 - 42 >= 0)
        set0 = IntegerSet.get(2, 1, [d0 - d1, s0 - c42], [True, False])
        print(set0)

        # CHECK: (d0)[s0] : (1 == 0)
        set1 = IntegerSet.get_empty(1, 1)
        print(set1)

        # CHECK: (d0)[s0, s1] : (d0 - s1 == 0, s0 - 42 >= 0)
        set2 = set0.get_replaced([d0, AffineSymbolExpr.get(1)], [s0], 1, 2)
        print(set2)

        try:
            IntegerSet.get(2, 1, [], [])
        except ValueError as e:
            # CHECK: Expected non-empty list of constraints
            print(e)

        try:
            IntegerSet.get(2, 1, [d0 - d1], [True, False])
        except ValueError as e:
            # CHECK: Expected the number of constraints to match that of equality flags
            print(e)

        try:
            IntegerSet.get(2, 1, [0], [True])
        except RuntimeError as e:
            # CHECK: Invalid expression when attempting to create an IntegerSet
            print(e)

        try:
            IntegerSet.get(2, 1, [None], [True])
        except RuntimeError as e:
            # CHECK: Invalid expression (None?) when attempting to create an IntegerSet
            print(e)

        try:
            set0.get_replaced([d0], [s0], 1, 1)
        except ValueError as e:
            # CHECK: Expected the number of dimension replacement expressions to match that of dimensions
            print(e)

        try:
            set0.get_replaced([d0, d1], [s0, s0], 1, 1)
        except ValueError as e:
            # CHECK: Expected the number of symbol replacement expressions to match that of symbols
            print(e)

        try:
            set0.get_replaced([d0, 1], [s0], 1, 1)
        except RuntimeError as e:
            # CHECK: Invalid expression when attempting to create an IntegerSet by replacing dimensions
            print(e)

        try:
            set0.get_replaced([d0, d1], [None], 1, 1)
        except RuntimeError as e:
            # CHECK: Invalid expression (None?) when attempting to create an IntegerSet by replacing symbols
            print(e)


# CHECK-LABEL: TEST: testIntegerSetProperties
@run
def testIntegerSetProperties():
    with Context():
        d0 = AffineDimExpr.get(0)
        d1 = AffineDimExpr.get(1)
        s0 = AffineSymbolExpr.get(0)
        c42 = AffineConstantExpr.get(42)

        set0 = IntegerSet.get(2, 1, [d0 - d1, s0 - c42, s0 - d0], [True, False, False])
        # CHECK: 2
        print(set0.n_dims)
        # CHECK: 1
        print(set0.n_symbols)
        # CHECK: 3
        print(set0.n_inputs)
        # CHECK: 1
        print(set0.n_equalities)
        # CHECK: 2
        print(set0.n_inequalities)

        # CHECK: 3
        print(len(set0.constraints))

        # CHECK-DAG: d0 - d1 == 0
        # CHECK-DAG: s0 - 42 >= 0
        # CHECK-DAG: -d0 + s0 >= 0
        for cstr in set0.constraints:
            print(cstr.expr, end="")
            print(" == 0" if cstr.is_eq else " >= 0")


# TODO-LABEL: TEST: testHash
@run
def testHash():
    with Context():
        d0 = AffineDimExpr.get(0)
        d1 = AffineDimExpr.get(1)
        set = IntegerSet.get(2, 0, [d0 + d1], [True])

        assert hash(set) == hash(IntegerSet.get(2, 0, [d0 + d1], [True]))

        dictionary = dict()
        dictionary[set] = 42
        assert set in dictionary