# Copyright 2025 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import os

_common_checks_ran = False


def GlicCommonChecks(input_api, output_api):
    global _common_checks_ran
    if _common_checks_ran:
        return []
    _common_checks_ran = True

    return _CheckGlicGeneratedApi(
        input_api, output_api
    ) + _CheckRuntimeFeatureChecksIfModified(input_api, output_api)


def _CheckGlicGeneratedApi(input_api, output_api):
    monitored_files = (
        'chrome/common/actor_webui.mojom',
        'chrome/common/glic_enums.mojom',
        'chrome/browser/glic/host/glic.mojom',
        'chrome/browser/resources/glic/glic_api_impl/generate.py',
        'chrome/browser/resources/glic/glic_api/glic_api.ts',
        'chrome/browser/resources/glic/glic_api/glic_api_generated.ts',
    )
    repo_root = input_api.change.RepositoryRoot()
    affected_files = [
        input_api.os_path.relpath(f.AbsoluteLocalPath(), repo_root).replace(
            '\\', '/'
        )
        for f in input_api.AffectedFiles()
    ]
    if not any([path in monitored_files for path in affected_files]):
        return []

    os_path = input_api.os_path
    src_root = os_path.join(os.path.dirname(__file__), '../../../..')
    cmd = [
        input_api.python_executable,
        input_api.os_path.join(
            src_root, 'chrome/browser/resources/glic/glic_api_impl/generate.py'
        ),
        '--check-only',
    ]

    try:
        input_api.subprocess.check_output(
            cmd, stderr=input_api.subprocess.STDOUT
        )
    except input_api.subprocess.CalledProcessError as e:
        message = e.output.decode('utf-8')
        return [output_api.PresubmitError(message)]
    return []


def _CheckRuntimeFeatureChecksIfModified(input_api, output_api):
    os_path = input_api.os_path
    src_root = os_path.join(os_path.dirname(__file__), '../../../..')

    for path in input_api.UnixLocalPaths():
        if path.startswith('chrome/browser/resources/glic/glic_api_impl/'):
            break
        if path in (
            'chrome/browser/glic/host/glic.mojom',
            'chrome/browser/resources/glic/presubmit'
            + '/check_runtime_features.py',
        ):
            break
    else:
        return []

    cmd = [
        input_api.python_executable,
        os_path.join(
            src_root,
            'chrome/browser/resources/glic/presubmit/check_runtime_features.py',
        ),
    ]

    try:
        input_api.subprocess.check_output(cmd)
    except input_api.subprocess.CalledProcessError as e:
        message = 'glic check_runtime_features.py failed:\n' + e.output.decode(
            'utf-8'
        )
        return [output_api.PresubmitError(message)]
    return []