#!/usr/bin/env python3
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# Copyright 2025 The Dawn & Tint Authors
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"""Merge script to upload wire trace fuzz corpora for use in ClusterFuzz.

Note that this "merge" script does not actually merge any data - all Dawn
results are handled by ResultDB.
"""

import os
import tempfile
import sys

ISOLATED_OUT_SUBDIR = 'clusterfuzz'
DAWN_ROOT = os.path.realpath(
    os.path.join(os.path.dirname(__file__), '..', '..'))
sys.path.insert(0, DAWN_ROOT)

from scripts.merge_scripts import fuzz_corpora_common

try:
    from testing.merge_scripts import merge_api
except ImportError as e:
    raise RuntimeError(
        'Unable to import merge_api - are you running in a Chromium checkout? '
        'This merge script only supports standalone Dawn checkouts.') from e


def main() -> None:
    parser = merge_api.ArgumentParser()
    fuzz_corpora_common.add_common_arguments(parser)
    args = parser.parse_args()
    # Wire trace tests uniquely name their files based on hashes and upload
    # Without clobbering. This is in contrast with Tint tests, which upload
    # as-is without clobbering.
    trace_files = fuzz_corpora_common.find_raw_trace_files(
        args.jsons_to_merge, ISOLATED_OUT_SUBDIR)
    with tempfile.TemporaryDirectory() as tempdir:
        fuzz_corpora_common.hash_trace_files(trace_files, tempdir)
        for fn in args.fuzzer_names:
            fuzz_corpora_common.upload_directory_to_gcs(tempdir,
                                                        fn,
                                                        clobber=False)


if __name__ == '__main__':
    main()
