"""Test cases for IR generation."""

from __future__ import annotations

import os.path
import sys

from mypy.errors import CompileError
from mypy.test.config import test_temp_dir
from mypy.test.data import DataDrivenTestCase
from mypyc.common import IS_FREE_THREADED, TOP_LEVEL_NAME
from mypyc.ir.pprint import format_func
from mypyc.test.testutil import (
    ICODE_GEN_BUILTINS,
    MypycDataSuite,
    assert_test_output,
    build_ir_for_single_file,
    infer_ir_build_options_from_test_name,
    remove_comment_lines,
    replace_word_size,
    use_custom_builtins,
)

files = [
    "irbuild-basic.test",
    "irbuild-int.test",
    "irbuild-bool.test",
    "irbuild-lists.test",
    "irbuild-tuple.test",
    "irbuild-dict.test",
    "irbuild-set.test",
    "irbuild-str.test",
    "irbuild-bytes.test",
    "irbuild-float.test",
    "irbuild-frozenset.test",
    "irbuild-statements.test",
    "irbuild-nested.test",
    "irbuild-classes.test",
    "irbuild-optional.test",
    "irbuild-any.test",
    "irbuild-generics.test",
    "irbuild-try.test",
    "irbuild-strip-asserts.test",
    "irbuild-i64.test",
    "irbuild-i32.test",
    "irbuild-i16.test",
    "irbuild-u8.test",
    "irbuild-vectorcall.test",
    "irbuild-unreachable.test",
    "irbuild-isinstance.test",
    "irbuild-dunders.test",
    "irbuild-singledispatch.test",
    "irbuild-constant-fold.test",
    "irbuild-glue-methods.test",
    "irbuild-math.test",
    "irbuild-weakref.test",
]

if sys.version_info >= (3, 10):
    files.append("irbuild-match.test")


class TestGenOps(MypycDataSuite):
    files = files
    base_path = test_temp_dir
    optional_out = True

    def run_case(self, testcase: DataDrivenTestCase) -> None:
        """Perform a runtime checking transformation test case."""
        options = infer_ir_build_options_from_test_name(testcase.name)
        if options is None:
            # Skipped test case
            return
        if "_withgil" in testcase.name and IS_FREE_THREADED:
            # Test case should only run on a non-free-threaded build.
            return
        with use_custom_builtins(os.path.join(self.data_prefix, ICODE_GEN_BUILTINS), testcase):
            expected_output = remove_comment_lines(testcase.output)
            expected_output = replace_word_size(expected_output)
            name = testcase.name
            try:
                ir = build_ir_for_single_file(testcase.input, options)
            except CompileError as e:
                actual = e.messages
            else:
                actual = []
                for fn in ir:
                    if fn.name == TOP_LEVEL_NAME and not name.endswith("_toplevel"):
                        continue
                    actual.extend(format_func(fn))

            assert_test_output(testcase, actual, "Invalid source code output", expected_output)