/*
 * Copyright 2014 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// Author: morlovich@google.com (Maksim Orlovich)

#include "pagespeed/system/system_rewrite_options.h"

#include "net/instaweb/rewriter/public/rewrite_options_test_base.h"
#include "pagespeed/kernel/base/google_message_handler.h"
#include "pagespeed/kernel/base/gtest.h"
#include "pagespeed/kernel/base/null_thread_system.h"

namespace net_instaweb {

class SystemRewriteOptionsTest
    : public RewriteOptionsTestBase<SystemRewriteOptions> {
 protected:
  SystemRewriteOptionsTest() : options_("test", &thread_system_) {
  }

  NullThreadSystem thread_system_;
  GoogleMessageHandler handler_;
  SystemRewriteOptions options_;
};

TEST_F(SystemRewriteOptionsTest, StaticAssetCdn) {
  // Check parsing.
  EXPECT_FALSE(options_.has_static_assets_to_cdn());

  GoogleString msg;
  RewriteOptions::OptionSettingResult result =
      options_.ParseAndSetOptionFromName1(
        SystemRewriteOptions::kStaticAssetCDN, "foo.com", &msg, &handler_);
  EXPECT_EQ(result, RewriteOptions::kOptionValueInvalid);
  EXPECT_EQ("Cannot set option StaticAssetCDN to foo.com. "
            "Not enough arguments.", msg);
  EXPECT_FALSE(options_.has_static_assets_to_cdn());

  result = options_.ParseAndSetOptionFromName1(
      SystemRewriteOptions::kStaticAssetCDN, "foo.com, Weird", &msg, &handler_);
  EXPECT_EQ(result, RewriteOptions::kOptionValueInvalid);
  EXPECT_EQ("Cannot set option StaticAssetCDN to foo.com, Weird. "
            "Invalid static asset label: Weird",
            msg);
  EXPECT_FALSE(options_.has_static_assets_to_cdn());

  result = options_.ParseAndSetOptionFromName1(
      SystemRewriteOptions::kStaticAssetCDN,
      "//foo.com, ADD_INSTRUMENTATION_JS, BLANK_GIF", &msg, &handler_);
  EXPECT_EQ(result, RewriteOptions::kOptionOk) << msg;
  EXPECT_TRUE(options_.has_static_assets_to_cdn());
  EXPECT_EQ("//foo.com", options_.static_assets_cdn_base());
  const SystemRewriteOptions::StaticAssetSet& assets =
      options_.static_assets_to_cdn();
  EXPECT_EQ(2, assets.size());
  EXPECT_TRUE(assets.find(StaticAssetEnum::ADD_INSTRUMENTATION_JS) !=
              assets.end());
  EXPECT_TRUE(assets.find(StaticAssetEnum::BLANK_GIF) !=
              assets.end());

  // Check conversion into proto.
  StaticAssetConfig proto_conf;
  options_.FillInStaticAssetCDNConf(&proto_conf);
  ASSERT_EQ(2, proto_conf.asset_size());
  const StaticAssetConfig::Asset& a1 = proto_conf.asset(0);
  EXPECT_EQ(StaticAssetEnum::ADD_INSTRUMENTATION_JS, a1.role());
  EXPECT_EQ("add_instrumentation.js", a1.name());
  EXPECT_EQ("opt", a1.opt_hash());
  EXPECT_EQ("dbg", a1.debug_hash());

  const StaticAssetConfig::Asset& a2 = proto_conf.asset(1);
  EXPECT_EQ(StaticAssetEnum::BLANK_GIF, a2.role());
  EXPECT_EQ("blank.gif", a2.name());
  EXPECT_EQ("opt", a2.opt_hash());
  EXPECT_EQ("dbg", a2.debug_hash());

  // Test merging.

  // Merge of something w/o these options.
  scoped_ptr<SystemRewriteOptions> options2(
      new SystemRewriteOptions(&thread_system_));
  options_.Merge(*options2);

  EXPECT_TRUE(options_.has_static_assets_to_cdn());
  EXPECT_EQ("//foo.com", options_.static_assets_cdn_base());

  const SystemRewriteOptions::StaticAssetSet& assets2 =
      options_.static_assets_to_cdn();
  EXPECT_EQ(2, assets2.size());
  EXPECT_TRUE(assets2.find(StaticAssetEnum::ADD_INSTRUMENTATION_JS) !=
              assets2.end());
  EXPECT_TRUE(assets2.find(StaticAssetEnum::BLANK_GIF) !=
              assets2.end());

  // Merge of something with the same path --- overwrites both.
  scoped_ptr<SystemRewriteOptions> options3(
      new SystemRewriteOptions(&thread_system_));
  result = options3->ParseAndSetOptionFromName1(
      SystemRewriteOptions::kStaticAssetCDN,
      "//foo.com, BLANK_GIF, MOBILIZE_JS", &msg, &handler_);
  ASSERT_EQ(result, RewriteOptions::kOptionOk) << msg;

  options_.Merge(*options3);
  EXPECT_TRUE(options_.has_static_assets_to_cdn());
  EXPECT_EQ("//foo.com", options_.static_assets_cdn_base());
  const SystemRewriteOptions::StaticAssetSet& assets3 =
      options_.static_assets_to_cdn();
  EXPECT_EQ(2, assets3.size());
  EXPECT_TRUE(assets3.find(StaticAssetEnum::BLANK_GIF) != assets3.end());
  EXPECT_TRUE(assets3.find(StaticAssetEnum::MOBILIZE_JS) != assets3.end());

  // Merge of something with different path --- overwrites as well.
  scoped_ptr<SystemRewriteOptions> options4(
      new SystemRewriteOptions(&thread_system_));
  result = options4->ParseAndSetOptionFromName1(
      SystemRewriteOptions::kStaticAssetCDN,
      "//bar.com, MOBILIZE_JS", &msg, &handler_);
  ASSERT_EQ(result, RewriteOptions::kOptionOk) << msg;

  options_.Merge(*options4);
  EXPECT_TRUE(options_.has_static_assets_to_cdn());
  EXPECT_EQ("//bar.com", options_.static_assets_cdn_base());
  const SystemRewriteOptions::StaticAssetSet& assets4 =
      options_.static_assets_to_cdn();
  EXPECT_EQ(1, assets4.size());
  EXPECT_TRUE(assets4.find(StaticAssetEnum::MOBILIZE_JS) != assets4.end());
}

}  // namespace net_instaweb