/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et: */

// Tests for `History.remove`, as implemented in History.jsm

"use strict";

Cu.importGlobalProperties(["URL"]);


// Test removing a single page
add_task(async function test_remove_single() {
  await PlacesUtils.history.clear();
  await PlacesUtils.bookmarks.eraseEverything();


  let WITNESS_URI = NetUtil.newURI("http://mozilla.com/test_browserhistory/test_remove/" + Math.random());
  await PlacesTestUtils.addVisits(WITNESS_URI);
  Assert.ok(page_in_database(WITNESS_URI));

  let remover = async function(name, filter, options) {
    info(name);
    info(JSON.stringify(options));
    info("Setting up visit");

    let uri = NetUtil.newURI("http://mozilla.com/test_browserhistory/test_remove/" + Math.random());
    let title = "Visit " + Math.random();
    await PlacesTestUtils.addVisits({uri, title});
    Assert.ok(visits_in_database(uri), "History entry created");

    let removeArg = await filter(uri);

    if (options.addBookmark) {
      await PlacesUtils.bookmarks.insert({
        parentGuid: PlacesUtils.bookmarks.unfiledGuid,
        url: uri,
        title: "test bookmark"
      });
    }

    let shouldRemove = !options.addBookmark;
    let observer;
    let promiseObserved = new Promise((resolve, reject) => {
      observer = {
        onBeginUpdateBatch() {},
        onEndUpdateBatch() {},
        onTitleChanged(aUri) {
          reject(new Error("Unexpected call to onTitleChanged " + aUri.spec));
        },
        onClearHistory() {
          reject("Unexpected call to onClearHistory");
        },
        onPageChanged(aUri) {
          reject(new Error("Unexpected call to onPageChanged " + aUri.spec));
        },
        onFrecencyChanged(aURI) {
          try {
            Assert.ok(!shouldRemove, "Observing onFrecencyChanged");
            Assert.equal(aURI.spec, uri.spec, "Observing effect on the right uri");
          } finally {
            resolve();
          }
        },
        onManyFrecenciesChanged() {
          try {
            Assert.ok(!shouldRemove, "Observing onManyFrecenciesChanged");
          } finally {
            resolve();
          }
        },
        onDeleteURI(aURI) {
          try {
            Assert.ok(shouldRemove, "Observing onDeleteURI");
            Assert.equal(aURI.spec, uri.spec, "Observing effect on the right uri");
          } finally {
            resolve();
          }
        },
        onDeleteVisits(aURI) {
          Assert.equal(aURI.spec, uri.spec, "Observing onDeleteVisits on the right uri");
        }
      };
    });
    PlacesUtils.history.addObserver(observer);

    info("Performing removal");
    let removed = false;
    if (options.useCallback) {
      let onRowCalled = false;
      let guid = do_get_guid_for_uri(uri);
      removed = await PlacesUtils.history.remove(removeArg, page => {
        Assert.equal(onRowCalled, false, "Callback has not been called yet");
        onRowCalled = true;
        Assert.equal(page.url.href, uri.spec, "Callback provides the correct url");
        Assert.equal(page.guid, guid, "Callback provides the correct guid");
        Assert.equal(page.title, title, "Callback provides the correct title");
      });
      Assert.ok(onRowCalled, "Callback has been called");
    } else {
      removed = await PlacesUtils.history.remove(removeArg);
    }

    await promiseObserved;
    PlacesUtils.history.removeObserver(observer);

    Assert.equal(visits_in_database(uri), 0, "History entry has disappeared");
    Assert.notEqual(visits_in_database(WITNESS_URI), 0, "Witness URI still has visits");
    Assert.notEqual(page_in_database(WITNESS_URI), 0, "Witness URI is still here");
    if (shouldRemove) {
      Assert.ok(removed, "Something was removed");
      Assert.equal(page_in_database(uri), 0, "Page has disappeared");
    } else {
      Assert.ok(!removed, "The page was not removed, as there was a bookmark");
      Assert.notEqual(page_in_database(uri), 0, "The page is still present");
    }
  };

  try {
    for (let useCallback of [false, true]) {
      for (let addBookmark of [false, true]) {
        let options = { useCallback, addBookmark };
        await remover("Testing History.remove() with a single URI", x => x, options);
        await remover("Testing History.remove() with a single string url", x => x.spec, options);
        await remover("Testing History.remove() with a single string guid", x => do_get_guid_for_uri(x), options);
        await remover("Testing History.remove() with a single URI in an array", x => [x], options);
        await remover("Testing History.remove() with a single string url in an array", x => [x.spec], options);
        await remover("Testing History.remove() with a single string guid in an array", x => [do_get_guid_for_uri(x)], options);
      }
    }
  } finally {
    await PlacesUtils.history.clear();
  }
});

add_task(async function cleanup() {
  await PlacesUtils.history.clear();
  await PlacesUtils.bookmarks.eraseEverything();
});

// Test the various error cases
add_task(async function test_error_cases() {
  Assert.throws(
    () => PlacesUtils.history.remove(),
    /TypeError: Invalid url/,
    "History.remove with no argument should throw a TypeError"
  );
  Assert.throws(
    () => PlacesUtils.history.remove(null),
    /TypeError: Invalid url/,
    "History.remove with `null` should throw a TypeError"
  );
  Assert.throws(
    () => PlacesUtils.history.remove(undefined),
    /TypeError: Invalid url/,
    "History.remove with `undefined` should throw a TypeError"
  );
  Assert.throws(
    () => PlacesUtils.history.remove("not a guid, obviously"),
    /TypeError: .* is not a valid URL/,
    "History.remove with an ill-formed guid/url argument should throw a TypeError"
  );
  Assert.throws(
    () => PlacesUtils.history.remove({"not the kind of object we know how to handle": true}),
    /TypeError: Invalid url/,
    "History.remove with an unexpected object should throw a TypeError"
  );
  Assert.throws(
    () => PlacesUtils.history.remove([]),
    /TypeError: Expected at least one page/,
    "History.remove with an empty array should throw a TypeError"
  );
  Assert.throws(
    () => PlacesUtils.history.remove([null]),
    /TypeError: Invalid url or guid/,
    "History.remove with an array containing null should throw a TypeError"
  );
  Assert.throws(
    () => PlacesUtils.history.remove(["http://example.org", "not a guid, obviously"]),
    /TypeError: .* is not a valid URL/,
    "History.remove with an array containing an ill-formed guid/url argument should throw a TypeError"
  );
  Assert.throws(
    () => PlacesUtils.history.remove(["0123456789ab"/* valid guid*/, null]),
    /TypeError: Invalid url or guid: null/,
    "History.remove with an array containing a guid and a second argument that is null should throw a TypeError"
  );
  Assert.throws(
    () => PlacesUtils.history.remove(["http://example.org", {"not the kind of object we know how to handle": true}]),
    /TypeError: Invalid url/,
    "History.remove with an array containing an unexpected objecgt should throw a TypeError"
  );
  Assert.throws(
    () => PlacesUtils.history.remove("http://example.org", "not a function, obviously"),
    /TypeError: Invalid function/,
    "History.remove with a second argument that is not a function argument should throw a TypeError"
  );
  try {
    PlacesUtils.history.remove("http://example.org/I/have/clearly/not/been/added", null);
    Assert.ok(true, "History.remove should ignore `null` as a second argument");
  } catch (ex) {
    Assert.ok(false, "History.remove should ignore `null` as a second argument");
  }
});

add_task(async function test_orphans() {
  let uri = NetUtil.newURI("http://moz.org/");
  await PlacesTestUtils.addVisits({ uri });

  PlacesUtils.favicons.setAndFetchFaviconForPage(
    uri, SMALLPNG_DATA_URI, true, PlacesUtils.favicons.FAVICON_LOAD_NON_PRIVATE,
    null, Services.scriptSecurityManager.getSystemPrincipal());
  PlacesUtils.annotations.setPageAnnotation(uri, "test", "restval", 0,
                                            PlacesUtils.annotations.EXPIRE_NEVER);

  await PlacesUtils.history.remove(uri);
  Assert.ok(!(await PlacesTestUtils.isPageInDB(uri)), "Page should have been removed");

  let db = await PlacesUtils.promiseDBConnection();
  let rows = await db.execute(`SELECT (SELECT count(*) FROM moz_annos) +
                                      (SELECT count(*) FROM moz_icons) +
                                      (SELECT count(*) FROM moz_pages_w_icons) +
                                      (SELECT count(*) FROM moz_icons_to_pages) AS count`);
  Assert.equal(rows[0].getResultByName("count"), 0, "Should not find orphans");
});
