// Copyright (C) 2013 The Android Open Source Project
//
// 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.

package com.google.gerrit.acceptance.api.project;

import static com.google.common.truth.Truth.assertThat;
import static com.google.gerrit.server.group.SystemGroupBackend.ANONYMOUS_USERS;
import static com.google.gerrit.server.project.ProjectState.INHERITED_FROM_GLOBAL;
import static com.google.gerrit.server.project.ProjectState.INHERITED_FROM_PARENT;
import static com.google.gerrit.server.project.ProjectState.OVERRIDDEN_BY_GLOBAL;
import static com.google.gerrit.server.project.ProjectState.OVERRIDDEN_BY_PARENT;

import com.google.gerrit.acceptance.AbstractDaemonTest;
import com.google.gerrit.acceptance.GerritConfig;
import com.google.gerrit.acceptance.NoHttpd;
import com.google.gerrit.common.data.Permission;
import com.google.gerrit.extensions.api.projects.BranchInput;
import com.google.gerrit.extensions.api.projects.ConfigInfo;
import com.google.gerrit.extensions.api.projects.ConfigInput;
import com.google.gerrit.extensions.api.projects.DescriptionInput;
import com.google.gerrit.extensions.api.projects.ProjectInput;
import com.google.gerrit.extensions.client.SubmitType;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.ResourceConflictException;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.reviewdb.client.RefNames;
import org.eclipse.jgit.revwalk.RevCommit;
import org.junit.Test;

@NoHttpd
public class ProjectIT extends AbstractDaemonTest {

  @Test
  public void createProject() throws Exception {
    String name = name("foo");
    assertThat(name).isEqualTo(gApi.projects().create(name).get().name);

    RevCommit head = getRemoteHead(name, RefNames.REFS_CONFIG);

    eventRecorder.assertRefUpdatedEvents(name, RefNames.REFS_CONFIG, null, head);
    eventRecorder.assertNoRefUpdatedEvents(name, "refs/heads/master");
  }

  @Test
  public void createProjectWithGitSuffix() throws Exception {
    String name = name("foo");
    assertThat(name).isEqualTo(gApi.projects().create(name + ".git").get().name);

    RevCommit head = getRemoteHead(name, RefNames.REFS_CONFIG);

    eventRecorder.assertRefUpdatedEvents(name, RefNames.REFS_CONFIG, null, head);
    eventRecorder.assertNoRefUpdatedEvents(name, "refs/heads/master");
  }

  @Test
  public void createProjectWithInitialCommit() throws Exception {
    String name = name("foo");
    ProjectInput input = new ProjectInput();
    input.name = name;
    input.createEmptyCommit = true;
    assertThat(name).isEqualTo(gApi.projects().create(input).get().name);

    RevCommit head = getRemoteHead(name, RefNames.REFS_CONFIG);
    eventRecorder.assertRefUpdatedEvents(name, RefNames.REFS_CONFIG, null, head);

    head = getRemoteHead(name, "refs/heads/master");
    eventRecorder.assertRefUpdatedEvents(name, "refs/heads/master", null, head);
  }

  @Test
  public void createProjectWithMismatchedInput() throws Exception {
    ProjectInput in = new ProjectInput();
    in.name = name("foo");
    exception.expect(BadRequestException.class);
    exception.expectMessage("name must match input.name");
    gApi.projects().name("bar").create(in);
  }

  @Test
  public void createProjectNoNameInInput() throws Exception {
    ProjectInput in = new ProjectInput();
    exception.expect(BadRequestException.class);
    exception.expectMessage("input.name is required");
    gApi.projects().create(in);
  }

  @Test
  public void createProjectDuplicate() throws Exception {
    ProjectInput in = new ProjectInput();
    in.name = name("baz");
    gApi.projects().create(in);
    exception.expect(ResourceConflictException.class);
    exception.expectMessage("Project already exists");
    gApi.projects().create(in);
  }

  @Test
  public void createBranch() throws Exception {
    allow(Permission.READ, ANONYMOUS_USERS, "refs/*");
    gApi.projects().name(project.get()).branch("foo").create(new BranchInput());
  }

  @Test
  public void description() throws Exception {
    RevCommit initialHead = getRemoteHead(project, RefNames.REFS_CONFIG);
    assertThat(gApi.projects().name(project.get()).description()).isEmpty();
    DescriptionInput in = new DescriptionInput();
    in.description = "new project description";
    gApi.projects().name(project.get()).description(in);
    assertThat(gApi.projects().name(project.get()).description()).isEqualTo(in.description);

    RevCommit updatedHead = getRemoteHead(project, RefNames.REFS_CONFIG);
    eventRecorder.assertRefUpdatedEvents(
        project.get(), RefNames.REFS_CONFIG, initialHead, updatedHead);
  }

  @Test
  public void submitType() throws Exception {
    RevCommit initialHead = getRemoteHead(project, RefNames.REFS_CONFIG);

    ConfigInfo info = getConfig();
    assertThat(info.submitType).isEqualTo(SubmitType.MERGE_IF_NECESSARY);
    ConfigInput input = new ConfigInput();
    input.submitType = SubmitType.CHERRY_PICK;
    info = setConfig(input);
    assertThat(info.submitType).isEqualTo(SubmitType.CHERRY_PICK);
    info = getConfig();
    assertThat(info.submitType).isEqualTo(SubmitType.CHERRY_PICK);

    RevCommit updatedHead = getRemoteHead(project, RefNames.REFS_CONFIG);
    eventRecorder.assertRefUpdatedEvents(
        project.get(), RefNames.REFS_CONFIG, initialHead, updatedHead);
  }

  @Test
  public void maxObjectSizeIsNotSetByDefault() throws Exception {
    ConfigInfo info = getConfig();
    assertThat(info.maxObjectSizeLimit.value).isNull();
    assertThat(info.maxObjectSizeLimit.configuredValue).isNull();
    assertThat(info.maxObjectSizeLimit.summary).isNull();
  }

  @Test
  public void maxObjectSizeCanBeSetAndCleared() throws Exception {
    // Set a value
    ConfigInfo info = setMaxObjectSize("100k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("102400");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("100k");
    assertThat(info.maxObjectSizeLimit.summary).isNull();

    // Clear the value
    info = setMaxObjectSize("0");
    assertThat(info.maxObjectSizeLimit.value).isNull();
    assertThat(info.maxObjectSizeLimit.configuredValue).isNull();
    assertThat(info.maxObjectSizeLimit.summary).isNull();
  }

  @Test
  @GerritConfig(name = "receive.inheritProjectMaxObjectSizeLimit", value = "true")
  public void maxObjectSizeIsInheritedFromParentProject() throws Exception {
    Project.NameKey child = createProject(name("child"), project);

    ConfigInfo info = setMaxObjectSize("100k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("102400");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("100k");
    assertThat(info.maxObjectSizeLimit.summary).isNull();

    info = getConfig(child);
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("102400");
    assertThat(info.maxObjectSizeLimit.configuredValue).isNull();
    assertThat(info.maxObjectSizeLimit.summary)
        .isEqualTo(String.format(INHERITED_FROM_PARENT, project));
  }

  @Test
  public void maxObjectSizeIsNotInheritedFromParentProject() throws Exception {
    Project.NameKey child = createProject(name("child"), project);

    ConfigInfo info = setMaxObjectSize("100k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("102400");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("100k");
    assertThat(info.maxObjectSizeLimit.summary).isNull();

    info = getConfig(child);
    assertThat(info.maxObjectSizeLimit.value).isNull();
    assertThat(info.maxObjectSizeLimit.configuredValue).isNull();
    assertThat(info.maxObjectSizeLimit.summary).isNull();
  }

  @Test
  public void maxObjectSizeOverridesParentProjectWhenNotSetOnParent() throws Exception {
    Project.NameKey child = createProject(name("child"), project);

    ConfigInfo info = setMaxObjectSize("0");
    assertThat(info.maxObjectSizeLimit.value).isNull();
    assertThat(info.maxObjectSizeLimit.configuredValue).isNull();
    assertThat(info.maxObjectSizeLimit.summary).isNull();

    info = setMaxObjectSize(child, "100k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("102400");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("100k");
    assertThat(info.maxObjectSizeLimit.summary).isNull();
  }

  @Test
  public void maxObjectSizeOverridesParentProjectWhenLower() throws Exception {
    Project.NameKey child = createProject(name("child"), project);

    ConfigInfo info = setMaxObjectSize("200k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("204800");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("200k");
    assertThat(info.maxObjectSizeLimit.summary).isNull();

    info = setMaxObjectSize(child, "100k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("102400");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("100k");
    assertThat(info.maxObjectSizeLimit.summary).isNull();
  }

  @Test
  @GerritConfig(name = "receive.inheritProjectMaxObjectSizeLimit", value = "true")
  public void maxObjectSizeDoesNotOverrideParentProjectWhenHigher() throws Exception {
    Project.NameKey child = createProject(name("child"), project);

    ConfigInfo info = setMaxObjectSize("100k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("102400");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("100k");
    assertThat(info.maxObjectSizeLimit.summary).isNull();

    info = setMaxObjectSize(child, "200k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("102400");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("200k");
    assertThat(info.maxObjectSizeLimit.summary)
        .isEqualTo(String.format(OVERRIDDEN_BY_PARENT, project));
  }

  @Test
  @GerritConfig(name = "receive.maxObjectSizeLimit", value = "200k")
  public void maxObjectSizeIsInheritedFromGlobalConfig() throws Exception {
    Project.NameKey child = createProject(name("child"), project);

    ConfigInfo info = getConfig();
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("204800");
    assertThat(info.maxObjectSizeLimit.configuredValue).isNull();
    assertThat(info.maxObjectSizeLimit.summary).isEqualTo(INHERITED_FROM_GLOBAL);

    info = getConfig(child);
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("204800");
    assertThat(info.maxObjectSizeLimit.configuredValue).isNull();
    assertThat(info.maxObjectSizeLimit.summary).isEqualTo(INHERITED_FROM_GLOBAL);
  }

  @Test
  @GerritConfig(name = "receive.maxObjectSizeLimit", value = "200k")
  public void maxObjectSizeOverridesGlobalConfigWhenLower() throws Exception {
    ConfigInfo info = setMaxObjectSize("100k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("102400");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("100k");
    assertThat(info.maxObjectSizeLimit.summary).isNull();
  }

  @Test
  @GerritConfig(name = "receive.maxObjectSizeLimit", value = "300k")
  public void inheritedMaxObjectSizeOverridesGlobalConfigWhenLower() throws Exception {
    Project.NameKey child = createProject(name("child"), project);

    ConfigInfo info = setMaxObjectSize("200k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("204800");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("200k");
    assertThat(info.maxObjectSizeLimit.summary).isNull();

    info = setMaxObjectSize(child, "100k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("102400");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("100k");
    assertThat(info.maxObjectSizeLimit.summary).isNull();
  }

  @Test
  @GerritConfig(name = "receive.maxObjectSizeLimit", value = "200k")
  @GerritConfig(name = "receive.inheritProjectMaxObjectSizeLimit", value = "true")
  public void maxObjectSizeDoesNotOverrideGlobalConfigWhenHigher() throws Exception {
    Project.NameKey child = createProject(name("child"), project);

    ConfigInfo info = setMaxObjectSize("300k");
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("204800");
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo("300k");
    assertThat(info.maxObjectSizeLimit.summary).isEqualTo(OVERRIDDEN_BY_GLOBAL);

    info = getConfig(child);
    assertThat(info.maxObjectSizeLimit.value).isEqualTo("204800");
    assertThat(info.maxObjectSizeLimit.configuredValue).isNull();
    assertThat(info.maxObjectSizeLimit.summary).isEqualTo(OVERRIDDEN_BY_GLOBAL);
  }

  @Test
  public void invalidMaxObjectSizeIsRejected() throws Exception {
    exception.expect(ResourceConflictException.class);
    exception.expectMessage("100 foo");
    setMaxObjectSize("100 foo");
  }

  private ConfigInfo setConfig(Project.NameKey name, ConfigInput input) throws Exception {
    return gApi.projects().name(name.get()).config(input);
  }

  private ConfigInfo setConfig(ConfigInput input) throws Exception {
    return setConfig(project, input);
  }

  private ConfigInfo setMaxObjectSize(String value) throws Exception {
    return setMaxObjectSize(project, value);
  }

  private ConfigInfo setMaxObjectSize(Project.NameKey name, String value) throws Exception {
    ConfigInput input = new ConfigInput();
    input.maxObjectSizeLimit = value;
    return setConfig(name, input);
  }

  private ConfigInfo getConfig(Project.NameKey name) throws Exception {
    return gApi.projects().name(name.get()).config();
  }

  private ConfigInfo getConfig() throws Exception {
    return getConfig(project);
  }
}