import pytest

from phasm.parser import phasm_parse
from phasm.exceptions import StaticError

@pytest.mark.integration_test
@pytest.mark.parametrize('type_', ['i32', 'i64', 'f32', 'f64'])
def test_type_mismatch_function_argument(type_):
    code_py = f"""
def helper(a: {type_}) -> (i32, i32, ):
    return a
"""

    with pytest.raises(StaticError, match=f'Static error on line 3: Expected \\(i32, i32, \\), a is actually {type_}'):
        phasm_parse(code_py)

@pytest.mark.integration_test
@pytest.mark.parametrize('type_', ['i32', 'i64', 'f32', 'f64'])
def test_type_mismatch_struct_member(type_):
    code_py = f"""
class Struct:
    param: {type_}

def testEntry(arg: Struct) -> (i32, i32, ):
    return arg.param
"""

    with pytest.raises(StaticError, match=f'Static error on line 6: Expected \\(i32, i32, \\), arg.param is actually {type_}'):
        phasm_parse(code_py)

@pytest.mark.integration_test
@pytest.mark.parametrize('type_', ['i32', 'i64', 'f32', 'f64'])
def test_type_mismatch_tuple_member(type_):
    code_py = f"""
def testEntry(arg: ({type_}, )) -> (i32, i32, ):
    return arg[0]
"""

    with pytest.raises(StaticError, match=f'Static error on line 3: Expected \\(i32, i32, \\), arg\\[0\\] is actually {type_}'):
        phasm_parse(code_py)

@pytest.mark.integration_test
@pytest.mark.parametrize('type_', ['i32', 'i64', 'f32', 'f64'])
def test_type_mismatch_function_result(type_):
    code_py = f"""
def helper() -> {type_}:
    return 1

@exported
def testEntry() -> (i32, i32, ):
    return helper()
"""

    with pytest.raises(StaticError, match=f'Static error on line 7: Expected \\(i32, i32, \\), helper actually returns {type_}'):
        phasm_parse(code_py)

@pytest.mark.integration_test
def test_tuple_constant_too_few_values():
    code_py = """
CONSTANT: (u32, u8, u8, ) = (24, 57, )
"""

    with pytest.raises(StaticError, match=f'Static error on line 2: Invalid number of tuple values'):
        phasm_parse(code_py)

@pytest.mark.integration_test
def test_tuple_constant_too_many_values():
    code_py = """
CONSTANT: (u32, u8, u8, ) = (24, 57, 1, 1, )
"""

    with pytest.raises(StaticError, match=f'Static error on line 2: Invalid number of tuple values'):
        phasm_parse(code_py)

@pytest.mark.integration_test
def test_tuple_constant_type_mismatch():
    code_py = """
CONSTANT: (u32, u8, u8, ) = (24, 4000, 1, )
"""

    with pytest.raises(StaticError, match=f'Static error on line 2: Integer value out of range; expected 0..255, actual 4000'):
        phasm_parse(code_py)