/*
 * SonarQube
 * Copyright (C) 2009-2018 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
import { findLastIndex } from 'lodash';
import { getJSON, post } from '../helpers/request';
import throwGlobalError from '../app/utils/throwGlobalError';

export interface Plugin {
  key: string;
  name: string;
  category?: string;
  description: string;
  editionBundled?: boolean;
  license?: string;
  organizationName?: string;
  homepageUrl?: string;
  organizationUrl?: string;
  issueTrackerUrl?: string;
  termsAndConditionsUrl?: string;
}

export interface Release {
  version: string;
  date: string;
  description?: string;
  changeLogUrl?: string;
}

export interface Update {
  status: string;
  release?: Release;
  requires: Plugin[];
  previousUpdates?: Update[];
}

export interface PluginAvailable extends Plugin {
  release: Release;
  update: Update;
}

export interface PluginPending extends Plugin {
  version: string;
  implementationBuild: string;
}

export interface PluginInstalled extends PluginPending {
  filename: string;
  hash: string;
  sonarLintSupported: boolean;
  updatedAt: number;
  updates?: Update[];
}

export function getAvailablePlugins(): Promise<{
  plugins: PluginAvailable[];
  updateCenterRefresh: string;
}> {
  return getJSON('/api/plugins/available').catch(throwGlobalError);
}

export function getPendingPlugins(): Promise<{
  installing: PluginPending[];
  updating: PluginPending[];
  removing: PluginPending[];
}> {
  return getJSON('/api/plugins/pending').catch(throwGlobalError);
}

function getLastUpdates(updates: undefined | Update[]): Update[] {
  if (!updates) {
    return [];
  }
  const lastUpdate = ['COMPATIBLE', 'REQUIRES_SYSTEM_UPGRADE', 'DEPS_REQUIRE_SYSTEM_UPGRADE'].map(
    status => {
      const index = findLastIndex(updates, update => update.status === status);
      return index > -1 ? updates[index] : undefined;
    }
  );
  return lastUpdate.filter(Boolean) as Update[];
}

function addChangelog(update: Update, updates?: Update[]) {
  if (!updates) {
    return update;
  }
  const index = updates.indexOf(update);
  const previousUpdates = index > 0 ? updates.slice(0, index) : [];
  return { ...update, previousUpdates };
}

export function getInstalledPluginsWithUpdates(): Promise<PluginInstalled[]> {
  return Promise.all([
    getJSON('/api/plugins/installed', { f: 'category' }),
    getJSON('/api/plugins/updates')
  ])
    .then(([installed, updates]) =>
      installed.plugins.map((plugin: PluginInstalled) => {
        const updatePlugin: PluginInstalled = updates.plugins.find(
          (p: PluginInstalled) => p.key === plugin.key
        );
        if (updatePlugin) {
          return {
            ...updatePlugin,
            ...plugin,
            updates: getLastUpdates(updatePlugin.updates).map(update =>
              addChangelog(update, updatePlugin.updates)
            )
          };
        }
        return plugin;
      })
    )
    .catch(throwGlobalError);
}

export function getPluginUpdates(): Promise<PluginInstalled[]> {
  return Promise.all([getJSON('/api/plugins/updates'), getJSON('/api/plugins/installed')])
    .then(([updates, installed]) =>
      updates.plugins.map((updatePlugin: PluginInstalled) => {
        const updates = getLastUpdates(updatePlugin.updates).map(update =>
          addChangelog(update, updatePlugin.updates)
        );
        const plugin = installed.plugins.find((p: PluginInstalled) => p.key === updatePlugin.key);
        if (plugin) {
          return {
            ...plugin,
            ...updatePlugin,
            updates
          };
        }
        return { ...updatePlugin, updates };
      })
    )
    .catch(throwGlobalError);
}

export function installPlugin(data: { key: string }): Promise<void | Response> {
  return post('/api/plugins/install', data).catch(throwGlobalError);
}

export function uninstallPlugin(data: { key: string }): Promise<void | Response> {
  return post('/api/plugins/uninstall', data).catch(throwGlobalError);
}

export function updatePlugin(data: { key: string }): Promise<void | Response> {
  return post('/api/plugins/update', data).catch(throwGlobalError);
}

export function cancelPendingPlugins(): Promise<void | Response> {
  return post('/api/plugins/cancel_all').catch(throwGlobalError);
}