// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/webapps/browser/banners/app_banner_settings_helper.h"

#include "base/auto_reset.h"
#include "base/test/scoped_feature_list.h"
#include "base/time/time.h"
#include "components/permissions/test/test_permissions_client.h"
#include "components/prefs/testing_pref_service.h"
#include "components/user_prefs/user_prefs.h"
#include "components/webapps/browser/banners/app_banner_metrics.h"
#include "components/webapps/browser/features.h"
#include "content/public/browser/browser_context.h"
#include "content/public/test/test_renderer_host.h"

namespace webapps {

namespace {

const char kTestURL[] = "https://www.google.com";
const char kSameOriginTestURL[] = "https://www.google.com/foo.html";
const char kSameOriginTestURL1[] = "https://www.google.com/foo1.html";
const char kSameOriginTestURL2[] = "https://www.google.com/foo2.html";
const char kTestPackageName[] = "test.package";

base::Time GetReferenceTime() {
  static constexpr base::Time::Exploded kReferenceTime = {.year = 2015,
                                                          .month = 1,
                                                          .day_of_week = 5,
                                                          .day_of_month = 30,
                                                          .hour = 11};
  base::Time out_time;
  EXPECT_TRUE(base::Time::FromLocalExploded(kReferenceTime, &out_time));
  return out_time;
}

class AppBannerSettingsHelperTest : public content::RenderViewHostTestHarness {
  void SetUp() override {
    content::RenderViewHostTestHarness::SetUp();
    user_prefs::UserPrefs::Set(browser_context(), &prefs_);
  }

  void TearDown() override {
    content::RenderViewHostTestHarness::TearDown();
  }

 private:
  TestingPrefServiceSimple prefs_;
  permissions::TestPermissionsClient permissions_client_;
};

}  // namespace

TEST_F(AppBannerSettingsHelperTest, SingleEvents) {
  GURL url(kTestURL);
  NavigateAndCommit(url);

  base::Time reference_time = GetReferenceTime();
  base::Time other_time = reference_time - base::Days(3);
  for (int event = AppBannerSettingsHelper::APP_BANNER_EVENT_COULD_SHOW;
       event < AppBannerSettingsHelper::APP_BANNER_EVENT_NUM_EVENTS; ++event) {
    // Check that by default, there is no event.
    std::optional<base::Time> event_time =
        AppBannerSettingsHelper::GetSingleBannerEvent(
            web_contents(), url, kTestPackageName,
            AppBannerSettingsHelper::AppBannerEvent(event));
    EXPECT_TRUE(event_time && event_time->is_null());

    // Check that a time can be recorded.
    AppBannerSettingsHelper::RecordBannerEvent(
        web_contents(), url, kTestPackageName,
        AppBannerSettingsHelper::AppBannerEvent(event), reference_time);

    event_time = AppBannerSettingsHelper::GetSingleBannerEvent(
        web_contents(), url, kTestPackageName,
        AppBannerSettingsHelper::AppBannerEvent(event));
    EXPECT_EQ(reference_time, *event_time);

    // Check that another time can be recorded.
    AppBannerSettingsHelper::RecordBannerEvent(
        web_contents(), url, kTestPackageName,
        AppBannerSettingsHelper::AppBannerEvent(event), other_time);

    event_time = AppBannerSettingsHelper::GetSingleBannerEvent(
        web_contents(), url, kTestPackageName,
        AppBannerSettingsHelper::AppBannerEvent(event));

    // COULD_SHOW events are not overwritten, but other events are.
    if (event == AppBannerSettingsHelper::APP_BANNER_EVENT_COULD_SHOW)
      EXPECT_EQ(reference_time, *event_time);
    else
      EXPECT_EQ(other_time, *event_time);
  }
}

TEST_F(AppBannerSettingsHelperTest, ReportsWhetherBannerWasRecentlyBlocked) {
  GURL url(kTestURL);
  NavigateAndCommit(url);

  base::Time reference_time = GetReferenceTime();
  base::Time two_months_ago = reference_time - base::Days(60);
  base::Time one_year_ago = reference_time - base::Days(366);

  EXPECT_FALSE(AppBannerSettingsHelper::WasBannerRecentlyBlocked(
      web_contents(), url, kTestPackageName, reference_time));

  // Block the site a long time ago. This should not be considered "recent".
  AppBannerSettingsHelper::RecordBannerEvent(
      web_contents(), url, kTestPackageName,
      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_BLOCK, one_year_ago);
  EXPECT_FALSE(AppBannerSettingsHelper::WasBannerRecentlyBlocked(
      web_contents(), url, kTestPackageName, reference_time));

  // Block the site more recently.
  AppBannerSettingsHelper::RecordBannerEvent(
      web_contents(), url, kTestPackageName,
      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_BLOCK, two_months_ago);
  EXPECT_TRUE(AppBannerSettingsHelper::WasBannerRecentlyBlocked(
      web_contents(), url, kTestPackageName, reference_time));

  // Change the number of days enforced.
  AppBannerSettingsHelper::ScopedTriggerSettings trigger_settings(59, 14);

  EXPECT_FALSE(AppBannerSettingsHelper::WasBannerRecentlyBlocked(
      web_contents(), url, kTestPackageName, reference_time));
}

TEST_F(AppBannerSettingsHelperTest, ReportsWhetherBannerWasRecentlyIgnored) {
  GURL url(kTestURL);
  NavigateAndCommit(url);

  base::Time reference_time = GetReferenceTime();
  base::Time one_week_ago = reference_time - base::Days(6);
  base::Time one_year_ago = reference_time - base::Days(366);

  EXPECT_FALSE(AppBannerSettingsHelper::WasBannerRecentlyIgnored(
      web_contents(), url, kTestPackageName, reference_time));

  // Show the banner a long time ago. This should not be considered "recent".
  AppBannerSettingsHelper::RecordBannerEvent(
      web_contents(), url, kTestPackageName,
      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_SHOW, one_year_ago);
  EXPECT_FALSE(AppBannerSettingsHelper::WasBannerRecentlyIgnored(
      web_contents(), url, kTestPackageName, reference_time));

  // Show the site more recently.
  AppBannerSettingsHelper::RecordBannerEvent(
      web_contents(), url, kTestPackageName,
      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_SHOW, one_week_ago);
  EXPECT_TRUE(AppBannerSettingsHelper::WasBannerRecentlyIgnored(
      web_contents(), url, kTestPackageName, reference_time));

  // Change the number of days enforced.
  AppBannerSettingsHelper::ScopedTriggerSettings trigger_settings(90, 5);

  EXPECT_FALSE(AppBannerSettingsHelper::WasBannerRecentlyIgnored(
      web_contents(), url, kTestPackageName, reference_time));
}

TEST_F(AppBannerSettingsHelperTest, OperatesOnOrigins) {
  GURL url(kTestURL);
  GURL otherURL(kSameOriginTestURL);

  base::Time reference_time = GetReferenceTime();
  base::Time one_week_ago = reference_time - base::Days(5);

  // If url is blocked, otherURL will also be reported as blocked.
  EXPECT_FALSE(AppBannerSettingsHelper::WasBannerRecentlyBlocked(
      web_contents(), otherURL, kTestPackageName, reference_time));
  AppBannerSettingsHelper::RecordBannerEvent(
      web_contents(), url, kTestPackageName,
      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_BLOCK, one_week_ago);
  EXPECT_TRUE(AppBannerSettingsHelper::WasBannerRecentlyBlocked(
      web_contents(), otherURL, kTestPackageName, reference_time));

  // If url is ignored, otherURL will also be reported as ignored.
  EXPECT_FALSE(AppBannerSettingsHelper::WasBannerRecentlyIgnored(
      web_contents(), otherURL, kTestPackageName, reference_time));
  AppBannerSettingsHelper::RecordBannerEvent(
      web_contents(), url, kTestPackageName,
      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_SHOW, one_week_ago);
  EXPECT_TRUE(AppBannerSettingsHelper::WasBannerRecentlyIgnored(
      web_contents(), otherURL, kTestPackageName, reference_time));
}

TEST_F(AppBannerSettingsHelperTest, NulloptSingleBannerEvent) {
  GURL url(kTestURL);
  std::string url_same_origin1(kSameOriginTestURL);
  std::string url_same_origin2(kSameOriginTestURL1);
  std::string url_same_origin3(kSameOriginTestURL2);
  NavigateAndCommit(url);

  base::Time reference_time = GetReferenceTime();
  base::Time one_day_ago = reference_time - base::Days(1);

  AppBannerSettingsHelper::RecordBannerEvent(
      web_contents(), url, url.spec(),
      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_SHOW, one_day_ago);
  AppBannerSettingsHelper::RecordBannerEvent(
      web_contents(), url, url_same_origin1,
      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_SHOW, one_day_ago);
  AppBannerSettingsHelper::RecordBannerEvent(
      web_contents(), url, url_same_origin2,
      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_SHOW, one_day_ago);
  std::optional<base::Time> event_time =
      AppBannerSettingsHelper::GetSingleBannerEvent(
          web_contents(), url, url_same_origin2,
          AppBannerSettingsHelper::APP_BANNER_EVENT_DID_SHOW);
  EXPECT_TRUE(event_time.has_value());
  EXPECT_FALSE(AppBannerSettingsHelper::WasBannerRecentlyBlocked(
      web_contents(), url, url_same_origin2, reference_time));

  AppBannerSettingsHelper::RecordBannerEvent(
      web_contents(), url, url_same_origin3,
      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_SHOW, one_day_ago);
  event_time = AppBannerSettingsHelper::GetSingleBannerEvent(
      web_contents(), url, url_same_origin3,
      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_SHOW);
  // if exceed kMaxAppsPerSite 3, we will ge nullopt
  EXPECT_FALSE(event_time.has_value());
  EXPECT_TRUE(AppBannerSettingsHelper::WasBannerRecentlyBlocked(
      web_contents(), url, url_same_origin3, reference_time));
}

}  // namespace webapps