// Copyright (C) 2017 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.googlesource.gerrit.plugins.its.redmine;

import com.google.gerrit.extensions.annotations.PluginName;
import com.google.gerrit.pgm.init.api.AllProjectsConfig;
import com.google.gerrit.pgm.init.api.AllProjectsNameOnInitProvider;
import com.google.gerrit.pgm.init.api.ConsoleUI;
import com.google.gerrit.pgm.init.api.InitFlags;
import com.google.gerrit.pgm.init.api.Section;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import com.googlesource.gerrit.plugins.its.base.its.InitIts;
import com.googlesource.gerrit.plugins.its.base.validation.ItsAssociationPolicy;
import java.io.IOException;
import org.eclipse.jgit.errors.ConfigInvalidException;

/** Initialize the GitRepositoryManager configuration section. */
@Singleton
class InitRedmine extends InitIts {
  private final String pluginName;
  private final Section.Factory sections;
  private final InitFlags flags;
  private Section redmine;
  private Section redmineComment;
  private String redmineUrl;
  private String redmineUsername;
  private String redmineApiKey;

  @Inject
  InitRedmine(
      @PluginName String pluginName,
      ConsoleUI ui,
      Section.Factory sections,
      AllProjectsConfig allProjectsConfig,
      AllProjectsNameOnInitProvider allProjects,
      InitFlags flags) {
    super(pluginName, "Redmine", ui, allProjectsConfig, allProjects);
    this.pluginName = pluginName;
    this.sections = sections;
    this.flags = flags;
  }

  @Override
  public void run() throws IOException, ConfigInvalidException {
    super.run();

    ui.message("\n");
    ui.header("Redmine connectivity");

    init();
  }

  private void init() {
    this.redmine = sections.get(pluginName, null);
    this.redmineComment = sections.get(COMMENT_LINK_SECTION, pluginName);

    do {
      enterRedmineConnectivity();
    } while (redmineUrl != null
        && (isConnectivityRequested(redmineUrl) && !isRedmineConnectSuccessful()));

    if (redmineUrl == null) {
      return;
    }

    ui.header("Redmine issue-tracking association");
    redmineComment.string("Redmine issue number regex", "match", "#([1-9][0-9]*)");
    redmineComment.set("html", String.format("<a href=\"%s/issues/$1\">#$1</a>", redmineUrl));
    redmineComment.select(
        "Issue number enforced in commit message", "association", ItsAssociationPolicy.SUGGESTED);
  }

  public void enterRedmineConnectivity() {
    redmineUrl = redmine.string("Redmine URL (empty to skip)", "url", null);
    if (redmineUrl != null) {
      redmineApiKey = redmine.string("Redmine api_key", "apiKey", "");
    }
  }

  private boolean isRedmineConnectSuccessful() {
    ui.message("Checking Redmine connectivity ... ");
    try {
      RedmineClient client = new RedmineClient(redmineUrl, redmineApiKey);
      client.isRedmineConnectSuccessful();
      ui.message("[OK]\n");
      return true;
    } catch (Exception e) {
      ui.message("*FAILED* (%s)\n", e.toString());
      return false;
    }
  }
}