// Copyright (C) 2012 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.server.plugins;

import com.google.common.base.Strings;
import com.google.common.collect.Lists;
import com.google.gerrit.common.data.GlobalCapability;
import com.google.gerrit.extensions.annotations.RequiresCapability;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.extensions.restapi.TopLevelResource;
import com.google.gerrit.extensions.restapi.Url;
import com.google.gerrit.server.OutputFormat;
import com.google.gson.JsonElement;
import com.google.gson.reflect.TypeToken;
import com.google.inject.Inject;

import org.kohsuke.args4j.Option;

import java.io.PrintWriter;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

/** List the installed plugins. */
@RequiresCapability(GlobalCapability.VIEW_PLUGINS)
public class ListPlugins implements RestReadView<TopLevelResource> {
  private final PluginLoader pluginLoader;

  @Option(name = "--all", aliases = {"-a"}, usage = "List all plugins, including disabled plugins")
  private boolean all;

  @Inject
  protected ListPlugins(PluginLoader pluginLoader) {
    this.pluginLoader = pluginLoader;
  }

  @Override
  public Object apply(TopLevelResource resource) {
    return display(null);
  }

  public JsonElement display(PrintWriter stdout) {
    List<Plugin> plugins = Lists.newArrayList(pluginLoader.getPlugins(all));
    Collections.sort(plugins, new Comparator<Plugin>() {
      @Override
      public int compare(Plugin a, Plugin b) {
        return a.getName().compareTo(b.getName());
      }
    });

    if (stdout == null) {
      Map<String, PluginInfo> output = new TreeMap<>();
      for (Plugin p : plugins) {
        PluginInfo info = new PluginInfo(p);
        output.put(p.getName(), info);
      }
      return OutputFormat.JSON.newGson().toJsonTree(
          output,
          new TypeToken<Map<String, Object>>() {}.getType());
    }
    stdout.format("%-30s %-10s %-8s %s\n", "Name", "Version", "Status", "File");
    stdout.print("-------------------------------------------------------------------------------\n");
    for (Plugin p : plugins) {
      PluginInfo info = new PluginInfo(p);
      stdout.format("%-30s %-10s %-8s %s\n", p.getName(),
          Strings.nullToEmpty(info.version),
          p.isDisabled() ? "DISABLED" : "ENABLED",
          p.getSrcFile().getFileName());
      stdout.print('\n');
    }
    stdout.flush();
    return null;
  }

  static class PluginInfo {
    String id;
    String version;
    String indexUrl;
    Boolean disabled;

    PluginInfo(Plugin p) {
      id = Url.encode(p.getName());
      version = p.getVersion();
      disabled = p.isDisabled() ? true : null;

      if (p.getSrcFile() != null) {
        indexUrl = String.format("plugins/%s/", p.getName());
      }
    }
  }
}

@@ -1567,16 +1567,149 @@
 oader;%0A%0A
+  @Deprecated%0A  @Option(name = %22--format%22, usage = %22(deprecated) output format%22)%0A  private OutputFormat format = OutputFormat.TEXT;%0A%0A
   @Optio
@@ -1930,16 +1930,172 @@
 r;%0A  %7D%0A%0A
+  public OutputFormat getFormat() %7B%0A    return format;%0A  %7D%0A%0A  public ListPlugins setFormat(OutputFormat fmt) %7B%0A    this.format = fmt;%0A    return this;%0A  %7D%0A%0A
   @Overr
@@ -2145,24 +2145,56 @@
 resource) %7B%0A
+    format = OutputFormat.JSON;%0A
     return d
@@ -2259,24 +2259,78 @@
 r stdout) %7B%0A
+    Map%3CString, PluginInfo%3E output = new TreeMap%3C%3E();%0A
     List%3CPlu
@@ -2594,346 +2594,30 @@
 if (
-stdout == null) %7B%0A      Map%3CString, PluginInfo%3E output = new TreeMap%3C%3E();%0A      for (Plugin p : plugins) %7B%0A        PluginInfo info = new PluginInfo(p);%0A        output.put(p.getName(), info);%0A      %7D%0A      return OutputFormat.JSON.newGson().toJsonTree(%0A          output,%0A          new TypeToken%3CMap%3CString, Object%3E%3E() %7B%7D.getType());%0A    %7D%0A
+!format.isJson()) %7B%0A  
     
@@ -2689,24 +2689,26 @@
 %22, %22File%22);%0A
+  
     stdout.p
@@ -2794,24 +2794,31 @@
 ------%5Cn%22);%0A
+    %7D%0A%0A
     for (Plu
@@ -2879,16 +2879,101 @@
 nfo(p);%0A
+      if (format.isJson()) %7B%0A        output.put(p.getName(), info);%0A      %7D else %7B%0A  
       st
@@ -3022,16 +3022,18 @@
 Name(),%0A
+  
         
@@ -3079,16 +3079,18 @@
         
+  
 p.isDisa
@@ -3132,16 +3132,18 @@
         
+  
 p.getSrc
@@ -3161,24 +3161,344 @@
 ileName());%0A
+      %7D%0A    %7D%0A%0A    if (stdout == null) %7B%0A      return OutputFormat.JSON.newGson().toJsonTree(%0A          output,%0A          new TypeToken%3CMap%3CString, Object%3E%3E() %7B%7D.getType());%0A    %7D else if (format.isJson()) %7B%0A      format.newGson().toJson(output,%0A          new TypeToken%3CMap%3CString, PluginInfo%3E%3E() %7B%7D.getType(), stdout);%0A
       stdout

Revert "ListPlugins: Remove deprecated --format option"