// Protocol Buffers - Google's data interchange format
// Copyright 2023 Google LLC.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google LLC nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "protos_generator/output.h"

#include <string>

#include "absl/strings/str_replace.h"

namespace protos_generator {
namespace {

namespace protobuf = ::google::protobuf;

}  // namespace

std::string StripExtension(absl::string_view fname) {
  size_t lastdot = fname.find_last_of('.');
  if (lastdot == std::string::npos) {
    return std::string(fname);
  }
  return std::string(fname.substr(0, lastdot));
}

std::string ToCIdent(absl::string_view str) {
  return absl::StrReplaceAll(str, {{".", "_"}, {"/", "_"}, {"-", "_"}});
}

std::string ToPreproc(absl::string_view str) {
  return absl::AsciiStrToUpper(ToCIdent(str));
}

void EmitFileWarning(const protobuf::FileDescriptor* file, Output& output) {
  output(
      R"cc(
        /* This file was generated by protos_generator (the upb C++ compiler) "
        from the input
         * file:
         *
         *     $0
         *
         * Do not edit -- your changes will be discarded when the file is
         * regenerated. */
      )cc",
      file->name());
  output("\n");
}

std::string MessageName(const protobuf::Descriptor* descriptor) {
  return ToCIdent(descriptor->full_name());
}

std::string FileLayoutName(const google::protobuf::FileDescriptor* file) {
  return ToCIdent(file->name()) + "_upb_file_layout";
}

std::string CHeaderFilename(const google::protobuf::FileDescriptor* file) {
  return StripExtension(file->name()) + ".upb.h";
}

std::string CSourceFilename(const google::protobuf::FileDescriptor* file) {
  return StripExtension(file->name()) + ".upb.c";
}

}  // namespace protos_generator