// Copyright 2026 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "services/network/public/cpp/http_request_headers_update_params.h"

namespace network {

HttpRequestHeadersUpdateParams::HttpRequestHeadersUpdateParams() = default;
HttpRequestHeadersUpdateParams::~HttpRequestHeadersUpdateParams() = default;
HttpRequestHeadersUpdateParams::HttpRequestHeadersUpdateParams(
    HttpRequestHeadersUpdateParams&&) = default;
HttpRequestHeadersUpdateParams& HttpRequestHeadersUpdateParams::operator=(
    HttpRequestHeadersUpdateParams&&) = default;

void HttpRequestHeadersUpdateParams::Apply(
    net::HttpRequestHeaders& headers,
    net::HttpRequestHeaders& cors_exempt_headers) const {
  for (const auto& removed_header : removed_headers) {
    headers.RemoveHeader(removed_header);
    cors_exempt_headers.RemoveHeader(removed_header);
  }
  headers.MergeFrom(modified_headers);
  cors_exempt_headers.MergeFrom(modified_cors_exempt_headers);
}

void HttpRequestHeadersUpdateParams::MergeFrom(
    HttpRequestHeadersUpdateParams other) {
  for (std::string& removed_header : other.removed_headers) {
    // TODO(crbug.com/511306597): To turn this into composition, we have to do:
    // ```
    // modified_headers.RemoveHeader(removed_header);
    // modified_cors_exempt_headers.RemoveHeader(removed_header);
    // ```
    if (!std::ranges::contains(removed_headers, removed_header)) {
      removed_headers.emplace_back(std::move(removed_header));
    }
  }
  modified_headers.MergeFrom(other.modified_headers);
  modified_cors_exempt_headers.MergeFrom(other.modified_cors_exempt_headers);
}

void HttpRequestHeadersUpdateParams::Clear() {
  removed_headers.clear();
  modified_headers.Clear();
  modified_cors_exempt_headers.Clear();
}

}  // namespace network