/* -*- Mode: JavaScript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/*
 * Tests for custom folder tree modes. The test mode is provided by the test
 * extension in the test-extension subdirectory.
 */

"use strict";

var {
  assert_folder_collapsed,
  assert_folder_displayed,
  assert_folder_expanded,
  assert_folder_mode,
  assert_folder_not_visible,
  assert_folder_selected_and_displayed,
  assert_folder_visible,
  collapse_folder,
  expand_folder,
  get_smart_folder_named,
  inboxFolder,
  make_message_sets_in_folders,
  mc,
} = ChromeUtils.import(
  "resource://testing-common/mozmill/FolderDisplayHelpers.jsm"
);

// spaces in the name are intentional
var smartParentNameA = "My Smart Folder A";
var smartParentNameB = "My Smart Folder B";

var rootFolder;
var inboxSubfolder, subfolderA, subfolderB;
var smartFolderInbox;
var smartFolderA;

var nsMsgFolderFlags = Ci.nsMsgFolderFlags;

/**
 * create two smart folder types and two real folders, one for each
 * smart folder type
 */
add_setup(async function () {
  rootFolder = inboxFolder.server.rootFolder;

  // register a new smart folder type
  mc.folderTreeView
    .getFolderTreeMode("smart")
    .addSmartFolderType(smartParentNameA, false, false);
  mc.folderTreeView
    .getFolderTreeMode("smart")
    .addSmartFolderType(smartParentNameB, false, false);

  // Create a folder as a subfolder of the inbox
  inboxFolder.createSubfolder("smartFolderA", null);
  subfolderA = inboxFolder.getChildNamed("smartFolderA");
  inboxFolder.createSubfolder("smartFolderB", null);
  subfolderB = inboxFolder.getChildNamed("smartFolderB");

  // This is how folders are marked to match a custom smart folder
  // The name is added to a cache, as msgDatabase access in nsITreeView is
  // bad perf.
  mc.window.setSmartFolderName(subfolderA, smartParentNameA);
  mc.window.setSmartFolderName(subfolderB, smartParentNameB);

  // The message itself doesn't really matter, as long as there's at least one
  // in the folder.
  await make_message_sets_in_folders([subfolderA], [{ count: 1 }]);
  await make_message_sets_in_folders([subfolderB], [{ count: 1 }]);
});

/**
 * Switch to the smart folder mode, get the smart inbox.
 */
add_task(function test_switch_to_smart_folder_mode() {
  mc.folderTreeView.activeModes = "smart";
  // Hide the all folders view.
  mc.folderTreeView.activeModes = "all";
  assert_folder_mode("smart");

  smartFolderA = get_smart_folder_named(smartParentNameA);
  SimpleTest.expectUncaughtException();
  mc.folderTreeView.selectFolder(smartFolderA);
});

add_task(function test_cache_property() {
  if (mc.window.getSmartFolderName(subfolderA) != smartParentNameA) {
    throw new Error("smartFolderName A cache property not set");
  }
  if (mc.window.getSmartFolderName(subfolderB) != smartParentNameB) {
    throw new Error("smartFolderName B cache property not set");
  }
});

function _test_smart_folder_type(folder, parentName) {
  let smartMode = mc.folderTreeView.getFolderTreeMode("smart");
  let [flag, name] = smartMode._getSmartFolderType(folder);
  if (flag != 0) {
    throw new Error(
      "custom smart folder definition [" + parentName + "] has a flag"
    );
  }
  if (name != parentName) {
    throw new Error(
      "custom smart folder [" +
        folder.name +
        "] is incorrect [" +
        name +
        "] should be [" +
        parentName +
        "]"
    );
  }
}

add_task(function test_smart_folder_type() {
  _test_smart_folder_type(subfolderA, smartParentNameA);
  _test_smart_folder_type(subfolderB, smartParentNameB);
});

/**
 * Test that our custom smart folders exist
 */

add_task(function test_custom_folder_exists() {
  assert_folder_mode("smart");
  assert_folder_displayed(smartFolderA);
  // this is our custom smart folder parent created in folderPane.js
  mc.folderTreeView.selectFolder(subfolderA);
  assert_folder_selected_and_displayed(subfolderA);
});

function FTVItemHasChild(parentFTVItem, childFolder, recurse) {
  for (let child of parentFTVItem.children) {
    if (
      child._folder.URI == childFolder.URI ||
      (recurse && FTVItemHasChild(child, childFolder, recurse))
    ) {
      return true;
    }
  }
  return false;
}

/**
 * test that our real smart folder is in fact a child if the correct
 * smart folder parent
 */
add_task(function test_smart_child_parent_relationship() {
  let folderIndex = assert_folder_visible(smartFolderA);
  let folderFTVItem = mc.folderTreeView.getFTVItemForIndex(folderIndex);
  if (!FTVItemHasChild(folderFTVItem, subfolderA, false)) {
    throw new Error(
      "Folder: " +
        subfolderA.name +
        " is not a child of our smart parent folder"
    );
  }
  assert_folder_mode("smart");
});

/**
 * test that our real smart folder is NOT a child of the smart inbox in the
 * tree view.
 */
add_task(function test_real_child_parent_relationship() {
  smartFolderInbox = get_smart_folder_named("Inbox");
  expand_folder(smartFolderInbox);
  // the real parent should be an Inbox
  let folderIndex = assert_folder_visible(subfolderA.parent);
  let folderFTVItem = mc.folderTreeView.getFTVItemForIndex(folderIndex);
  // in the tree, subfolder is a child of our magic smart folder, and should not
  // be a child of inbox
  if (FTVItemHasChild(folderFTVItem, subfolderA, true)) {
    throw new Error(
      "Folder: " + subfolderA.name + " should not be a child of an inbox"
    );
  }
  assert_folder_mode("smart");
});

/**
 * test collapse/expand states of one of our smart folders
 */
add_task(function test_smart_subfolder() {
  assert_folder_mode("smart");
  collapse_folder(smartFolderA);
  assert_folder_collapsed(smartFolderA);
  assert_folder_not_visible(subfolderA);

  expand_folder(smartFolderA);
  assert_folder_expanded(smartFolderA);
  assert_folder_visible(subfolderA);
});

/**
 * Switch back to all folders.
 */
add_task(function test_return_to_all_folders() {
  assert_folder_mode("smart");
  mc.folderTreeView.activeModes = "smart";
  assert_folder_mode("all");
});

registerCleanupFunction(function () {
  inboxFolder.propagateDelete(subfolderA, true);
  inboxFolder.propagateDelete(subfolderB, true);
});