// 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.InheritableBoolean;
import com.google.gerrit.extensions.client.ProjectState;
import com.google.gerrit.extensions.client.SubmitType;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.ResourceConflictException;
import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
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("refs/*", Permission.READ, ANONYMOUS_USERS);
    gApi.projects().name(project.get()).branch("foo").create(new BranchInput());
  }

  @Test
  public void descriptionChangeCausesRefUpdate() 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 descriptionIsDeletedWhenNotSpecified() throws Exception {
    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);
    in.description = null;
    gApi.projects().name(project.get()).description(in);
    assertThat(gApi.projects().name(project.get()).description()).isEmpty();
  }

  @Test
  public void configChangeCausesRefUpdate() 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 setConfig() throws Exception {
    ConfigInput input = createTestConfigInput();
    ConfigInfo info = gApi.projects().name(project.get()).config(input);
    assertThat(info.description).isEqualTo(input.description);
    assertThat(info.useContributorAgreements.configuredValue)
        .isEqualTo(input.useContributorAgreements);
    assertThat(info.useContentMerge.configuredValue).isEqualTo(input.useContentMerge);
    assertThat(info.useSignedOffBy.configuredValue).isEqualTo(input.useSignedOffBy);
    assertThat(info.createNewChangeForAllNotInTarget.configuredValue)
        .isEqualTo(input.createNewChangeForAllNotInTarget);
    assertThat(info.requireChangeId.configuredValue).isEqualTo(input.requireChangeId);
    assertThat(info.rejectImplicitMerges.configuredValue).isEqualTo(input.rejectImplicitMerges);
    assertThat(info.enableReviewerByEmail.configuredValue).isEqualTo(input.enableReviewerByEmail);
    assertThat(info.createNewChangeForAllNotInTarget.configuredValue)
        .isEqualTo(input.createNewChangeForAllNotInTarget);
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo(input.maxObjectSizeLimit);
    assertThat(info.submitType).isEqualTo(input.submitType);
    assertThat(info.state).isEqualTo(input.state);
  }

  @Test
  public void setPartialConfig() throws Exception {
    ConfigInput input = createTestConfigInput();
    ConfigInfo info = gApi.projects().name(project.get()).config(input);

    ConfigInput partialInput = new ConfigInput();
    partialInput.useContributorAgreements = InheritableBoolean.FALSE;
    info = gApi.projects().name(project.get()).config(partialInput);

    assertThat(info.description).isNull();
    assertThat(info.useContributorAgreements.configuredValue)
        .isEqualTo(partialInput.useContributorAgreements);
    assertThat(info.useContentMerge.configuredValue).isEqualTo(input.useContentMerge);
    assertThat(info.useSignedOffBy.configuredValue).isEqualTo(input.useSignedOffBy);
    assertThat(info.createNewChangeForAllNotInTarget.configuredValue)
        .isEqualTo(input.createNewChangeForAllNotInTarget);
    assertThat(info.requireChangeId.configuredValue).isEqualTo(input.requireChangeId);
    assertThat(info.rejectImplicitMerges.configuredValue).isEqualTo(input.rejectImplicitMerges);
    assertThat(info.enableReviewerByEmail.configuredValue).isEqualTo(input.enableReviewerByEmail);
    assertThat(info.createNewChangeForAllNotInTarget.configuredValue)
        .isEqualTo(input.createNewChangeForAllNotInTarget);
    assertThat(info.maxObjectSizeLimit.configuredValue).isEqualTo(input.maxObjectSizeLimit);
    assertThat(info.submitType).isEqualTo(input.submitType);
    assertThat(info.state).isEqualTo(input.state);
  }

  @Test
  public void nonOwnerCannotSetConfig() throws Exception {
    ConfigInput input = createTestConfigInput();
    setApiUser(user);
    exception.expect(AuthException.class);
    exception.expectMessage("restricted to project owner");
    gApi.projects().name(project.get()).config(input);
  }

  @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");
  }

  @Test
  public void setHead() throws Exception {
    assertThat(gApi.projects().name(project.get()).head()).isEqualTo("refs/heads/master");
    gApi.projects().name(project.get()).branch("test1").create(new BranchInput());
    gApi.projects().name(project.get()).branch("test2").create(new BranchInput());
    for (String head : new String[] {"test1", "refs/heads/test2"}) {
      gApi.projects().name(project.get()).head(head);
      assertThat(gApi.projects().name(project.get()).head()).isEqualTo(RefNames.fullName(head));
    }
  }

  @Test
  public void setHeadToNonexistentBranch() throws Exception {
    exception.expect(UnprocessableEntityException.class);
    gApi.projects().name(project.get()).head("does-not-exist");
  }

  @Test
  public void setHeadToSameBranch() throws Exception {
    gApi.projects().name(project.get()).branch("test").create(new BranchInput());
    for (String head : new String[] {"test", "refs/heads/test"}) {
      gApi.projects().name(project.get()).head(head);
      assertThat(gApi.projects().name(project.get()).head()).isEqualTo(RefNames.fullName(head));
    }
  }

  @Test
  public void setHeadNotAllowed() throws Exception {
    gApi.projects().name(project.get()).branch("test").create(new BranchInput());
    setApiUser(user);
    exception.expect(AuthException.class);
    exception.expectMessage("restricted to project owner");
    gApi.projects().name(project.get()).head("test");
  }

  private ConfigInput createTestConfigInput() {
    ConfigInput input = new ConfigInput();
    input.description = "some description";
    input.useContributorAgreements = InheritableBoolean.TRUE;
    input.useContentMerge = InheritableBoolean.TRUE;
    input.useSignedOffBy = InheritableBoolean.TRUE;
    input.createNewChangeForAllNotInTarget = InheritableBoolean.TRUE;
    input.requireChangeId = InheritableBoolean.TRUE;
    input.rejectImplicitMerges = InheritableBoolean.TRUE;
    input.enableReviewerByEmail = InheritableBoolean.TRUE;
    input.createNewChangeForAllNotInTarget = InheritableBoolean.TRUE;
    input.maxObjectSizeLimit = "5m";
    input.submitType = SubmitType.CHERRY_PICK;
    input.state = ProjectState.HIDDEN;
    return input;
  }

  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);
  }
}