"""Host regression suite. CC may point to clang/gcc; this does not replace a TI build."""
import os
from pathlib import Path
import shutil
import subprocess
import tempfile

root = Path(__file__).resolve().parents[1]
cc = os.environ.get('CC') or shutil.which('clang') or shutil.which('gcc')
if not cc:
    raise SystemExit('Set CC to a C99 host compiler')
store = 'ports/tms320f28335/f28335_boot_store.c'
cases = [
    ('core', [], ['src/pcan_boot.c', 'tests/test_pcan_boot.c']),
    ('store_native', [], [store, 'tests/test_f28335_boot_store.c']),
    ('store_wide', ['-DPCAN_BOOT_WIDE_BYTES'], [store, 'tests/test_f28335_boot_store.c']),
    ('loader', ['-DPCAN_BOOT_WIDE_BYTES'], [store, 'src/pcan_boot.c', 'tests/test_f28335_can_boot.c']),
    ('application', ['-DPCAN_BOOT_WIDE_BYTES', '-DF28335_BOOT_LOADER=0'],
     [store, 'src/pcan_boot.c', 'tests/test_f28335_can_boot.c']),
]
with tempfile.TemporaryDirectory(prefix='f28335-ab-') as tmp:
    for name, defines, sources in cases:
        exe = Path(tmp) / (name + '.exe')
        subprocess.run([cc, '-std=c99', '-Wall', '-Wextra', '-Werror', '-Iinclude',
                        '-Itests/f28335_stubs', *defines, *sources, '-o', str(exe)], cwd=root, check=True)
        sample = os.environ.get('F28335_SAMPLE_IMAGE') if name == 'store_wide' else None
        subprocess.run([str(exe), *([sample] if sample else [])], check=True, timeout=30)