/* 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/. */

"use strict";

var fac;

var numRecords, timeGroupingSize, now;

const DEFAULT_EXPIRE_DAYS = 180;

function padLeft(number, length) {
  let str = number + "";
  while (str.length < length) {
    str = "0" + str;
  }
  return str;
}

function getFormExpiryDays() {
  if (Services.prefs.prefHasUserValue("browser.formfill.expire_days")) {
    return Services.prefs.getIntPref("browser.formfill.expire_days");
  }
  return DEFAULT_EXPIRE_DAYS;
}

function run_test() {
  // ===== test init =====
  let testfile = do_get_file("formhistory_autocomplete.sqlite");
  let profileDir = Services.dirsvc.get("ProfD", Ci.nsIFile);

  // Cleanup from any previous tests or failures.
  let destFile = profileDir.clone();
  destFile.append("formhistory.sqlite");
  if (destFile.exists()) {
    destFile.remove(false);
  }

  testfile.copyTo(profileDir, "formhistory.sqlite");

  fac = Cc["@mozilla.org/satchel/form-autocomplete;1"].getService(Ci.nsIFormAutoComplete);

  timeGroupingSize = Services.prefs.getIntPref("browser.formfill.timeGroupingSize") * 1000 * 1000;

  run_next_test();
}

add_test(function test0() {
  let maxTimeGroupings = Services.prefs.getIntPref("browser.formfill.maxTimeGroupings");
  let bucketSize = Services.prefs.getIntPref("browser.formfill.bucketSize");

  // ===== Tests with constant timesUsed and varying lastUsed date =====
  // insert 2 records per bucket to check alphabetical sort within
  now = 1000 * Date.now();
  numRecords = Math.ceil(maxTimeGroupings / bucketSize) * 2;

  let changes = [];
  for (let i = 0; i < numRecords; i += 2) {
    let useDate = now - (i / 2 * bucketSize * timeGroupingSize);

    changes.push({ op: "add", fieldname: "field1", value: "value" + padLeft(numRecords - 1 - i, 2),
      timesUsed: 1, firstUsed: useDate, lastUsed: useDate });
    changes.push({ op: "add", fieldname: "field1", value: "value" + padLeft(numRecords - 2 - i, 2),
      timesUsed: 1, firstUsed: useDate, lastUsed: useDate });
  }

  updateFormHistory(changes, run_next_test);
});

add_test(function test1() {
  do_log_info("Check initial state is as expected");

  countEntries(null, null, function() {
    countEntries("field1", null, function(count) {
      Assert.ok(count > 0);
      run_next_test();
    });
  });
});

add_test(function test2() {
  do_log_info("Check search contains all entries");

  fac.autoCompleteSearchAsync("field1", "", null, null, null, {
    onSearchCompletion(aResults) {
      Assert.equal(numRecords, aResults.matchCount);
      run_next_test();
    },
  });
});

add_test(function test3() {
  do_log_info("Check search result ordering with empty search term");

  let lastFound = numRecords;
  fac.autoCompleteSearchAsync("field1", "", null, null, null, {
    onSearchCompletion(aResults) {
      for (let i = 0; i < numRecords; i += 2) {
        Assert.equal(parseInt(aResults.getValueAt(i + 1).substr(5), 10), --lastFound);
        Assert.equal(parseInt(aResults.getValueAt(i).substr(5), 10), --lastFound);
      }
      run_next_test();
    },
  });
});

add_test(function test4() {
  do_log_info("Check search result ordering with \"v\"");

  let lastFound = numRecords;
  fac.autoCompleteSearchAsync("field1", "v", null, null, null, {
    onSearchCompletion(aResults) {
      for (let i = 0; i < numRecords; i += 2) {
        Assert.equal(parseInt(aResults.getValueAt(i + 1).substr(5), 10), --lastFound);
        Assert.equal(parseInt(aResults.getValueAt(i).substr(5), 10), --lastFound);
      }
      run_next_test();
    },
  });
});

const timesUsedSamples = 20;

add_test(function test5() {
  do_log_info("Begin tests with constant use dates and varying timesUsed");

  let changes =  [];
  for (let i = 0; i < timesUsedSamples; i++) {
    let timesUsed = (timesUsedSamples - i);
    let change = { op: "add", fieldname: "field2", value: "value" + (timesUsedSamples - 1 - i),
      timesUsed: timesUsed * timeGroupingSize, firstUsed: now, lastUsed: now };
    changes.push(change);
  }
  updateFormHistory(changes, run_next_test);
});

add_test(function test6() {
  do_log_info("Check search result ordering with empty search term");

  let lastFound = timesUsedSamples;
  fac.autoCompleteSearchAsync("field2", "", null, null, null, {
    onSearchCompletion(aResults) {
      for (let i = 0; i < timesUsedSamples; i++) {
        Assert.equal(parseInt(aResults.getValueAt(i).substr(5), 10), --lastFound);
      }
      run_next_test();
    },
  });
});

add_test(function test7() {
  do_log_info("Check search result ordering with \"v\"");

  let lastFound = timesUsedSamples;
  fac.autoCompleteSearchAsync("field2", "v", null, null, null, {
    onSearchCompletion(aResults) {
      for (let i = 0; i < timesUsedSamples; i++) {
        Assert.equal(parseInt(aResults.getValueAt(i).substr(5), 10), --lastFound);
      }
      run_next_test();
    },
  });
});

add_test(function test8() {
  do_log_info("Check that \"senior citizen\" entries get a bonus (browser.formfill.agedBonus)");

  let agedDate = 1000 * (Date.now() - getFormExpiryDays() * 24 * 60 * 60 * 1000);

  let changes = [];
  changes.push({ op: "add", fieldname: "field3", value: "old but not senior",
    timesUsed: 100, firstUsed: (agedDate + 60 * 1000 * 1000), lastUsed: now });
  changes.push({ op: "add", fieldname: "field3", value: "senior citizen",
    timesUsed: 100, firstUsed: (agedDate - 60 * 1000 * 1000), lastUsed: now });
  updateFormHistory(changes, run_next_test);
});

add_test(function test9() {
  fac.autoCompleteSearchAsync("field3", "", null, null, null, {
    onSearchCompletion(aResults) {
      Assert.equal(aResults.getValueAt(0), "senior citizen");
      Assert.equal(aResults.getValueAt(1), "old but not senior");
      run_next_test();
    },
  });
});

add_test(function test10() {
  do_log_info("Check entries that are really old or in the future");

  let changes = [];
  changes.push({ op: "add", fieldname: "field4", value: "date of 0",
    timesUsed: 1, firstUsed: 0, lastUsed: 0 });
  changes.push({ op: "add", fieldname: "field4", value: "in the future 1",
    timesUsed: 1, firstUsed: 0, lastUsed: now * 2 });
  changes.push({ op: "add", fieldname: "field4", value: "in the future 2",
    timesUsed: 1, firstUsed: now * 2, lastUsed: now * 2 });
  updateFormHistory(changes, run_next_test);
});

add_test(function test11() {
  fac.autoCompleteSearchAsync("field4", "", null, null, null, {
    onSearchCompletion(aResults) {
      Assert.equal(aResults.matchCount, 3);
      run_next_test();
    },
  });
});

var syncValues = ["sync1", "sync1a", "sync2", "sync3"];

add_test(function test12() {
  do_log_info("Check old synchronous api");

  let changes = [];
  for (let value of syncValues) {
    changes.push({ op: "add", fieldname: "field5", value });
  }
  updateFormHistory(changes, run_next_test);
});

add_test(function test_token_limit_DB() {
  function test_token_limit_previousResult(previousResult) {
    do_log_info("Check that the number of tokens used in a search is not capped to " +
                    "MAX_SEARCH_TOKENS when using a previousResult");
    // This provide more accuracy since performance is less of an issue.
    // Search for a string where the first 10 tokens match the previous value but the 11th does not
    // when re-using a previous result.
    fac.autoCompleteSearchAsync("field_token_cap",
                                "a b c d e f g h i j .",
                                null, previousResult, null, {
                                  onSearchCompletion(aResults) {
                                    Assert.equal(aResults.matchCount, 0,
                                                 "All search tokens should be used with " +
                                                         "previous results");
                                    run_next_test();
                                  },
                                });
  }

  do_log_info("Check that the number of tokens used in a search is capped to MAX_SEARCH_TOKENS " +
                "for performance when querying the DB");
  let changes = [];
  changes.push({ op: "add", fieldname: "field_token_cap",
    // value with 15 unique tokens
    value: "a b c d e f g h i j k l m n o",
    timesUsed: 1, firstUsed: 0, lastUsed: 0 });
  updateFormHistory(changes, () => {
    // Search for a string where the first 10 tokens match the value above but the 11th does not
    // (which would prevent the result from being returned if the 11th term was used).
    fac.autoCompleteSearchAsync("field_token_cap",
                                "a b c d e f g h i j .",
                                null, null, null, {
                                  onSearchCompletion(aResults) {
                                    Assert.equal(aResults.matchCount, 1,
                                                 "Only the first MAX_SEARCH_TOKENS tokens " +
                                                         "should be used for DB queries");
                                    test_token_limit_previousResult(aResults);
                                  },
                                });
  });
});