<!DOCTYPE html>
<html>
<head>
<script src="../../../resources/js-test.js"></script>
<script src="../../editing.js"></script>
</head>
<body>
<div id="dropzone" style="width: 200px; height: 200px; background-color: grey;"></div>
<script>
description("Basic test coverage for fileSystemDirectoryReader.readEntries()");
jsTestIsAsync = true;

function getEntriesAsPromise(dirEntry) {
    return new Promise((resolve, reject) => {
        let result = [];
        let reader = dirEntry.createReader();
        let doBatch = () => {
            reader.readEntries(entries => {
            if (entries.length > 0) {
                entries.forEach(e => result.push(e));
                doBatch();
            } else {
                resolve(result.sort(function (a, b) {
                    if (a.name > b.name)
                        return 1;
                    else if (a.name < b.name)
                        return -1;
                    return 0;
                }));
            }
        }, reject);
    };
    doBatch();
  });
}

var dropzone = document.getElementById('dropzone');
dropzone.ondrop = function(e) {
    e.preventDefault();
    dataTransfer = e.dataTransfer;

    shouldBe("dataTransfer.items.length", "1");

    entry = dataTransfer.items[0].webkitGetAsEntry();
    shouldBeTrue("entry.isDirectory");
    shouldBeEqualToString("entry.name", "testFiles");
    shouldBeEqualToString("entry.fullPath", "/testFiles");

    getEntriesAsPromise(entry).then(function(entries) {
        childEntries = entries;
        shouldBe("childEntries.length", "4");
        shouldBeEqualToString("childEntries[0].name", "file1.txt");
        shouldBeEqualToString("childEntries[0].fullPath", "/testFiles/file1.txt");
        shouldBeTrue("childEntries[0].isFile");

        shouldBeEqualToString("childEntries[1].name", "file2.txt");
        shouldBeEqualToString("childEntries[1].fullPath", "/testFiles/file2.txt");
        shouldBeTrue("childEntries[1].isFile");

        shouldBeEqualToString("childEntries[2].name", "subfolder1");
        shouldBeEqualToString("childEntries[2].fullPath", "/testFiles/subfolder1");
        shouldBeTrue("childEntries[2].isDirectory");

        shouldBeEqualToString("childEntries[3].name", "subfolder2");
        shouldBeEqualToString("childEntries[3].fullPath", "/testFiles/subfolder2");
        shouldBeTrue("childEntries[3].isDirectory");

        getEntriesAsPromise(childEntries[2]).then(function(entries) {
            grandChildEntries = entries;
            shouldBe("grandChildEntries.length", "1");
            shouldBeEqualToString("grandChildEntries[0].name", "file3.txt");
            shouldBeEqualToString("grandChildEntries[0].fullPath", "/testFiles/subfolder1/file3.txt");
            shouldBeTrue("grandChildEntries[0].isFile");

            getEntriesAsPromise(childEntries[3]).then(function(entries) {
                grandChildEntries = entries;
                shouldBe("grandChildEntries.length", "2");
                shouldBeEqualToString("grandChildEntries[0].name", "file4.txt");
                shouldBeEqualToString("grandChildEntries[0].fullPath", "/testFiles/subfolder2/file4.txt");
                shouldBeTrue("grandChildEntries[0].isFile");

                shouldBeEqualToString("grandChildEntries[1].name", "subfolder2a");
                shouldBeEqualToString("grandChildEntries[1].fullPath", "/testFiles/subfolder2/subfolder2a");
                shouldBeTrue("grandChildEntries[1].isDirectory");

                getEntriesAsPromise(grandChildEntries[1]).then(function(entries) {
                    greatGrandChildEntries = entries;
                    shouldBe("greatGrandChildEntries.length", "1");
                    shouldBeEqualToString("greatGrandChildEntries[0].name", "file5.txt");
                    shouldBeEqualToString("greatGrandChildEntries[0].fullPath", "/testFiles/subfolder2/subfolder2a/file5.txt");
                    shouldBeTrue("greatGrandChildEntries[0].isFile");

                    finishJSTest();
                }, function(e) {
                    testFailed("readEntries failed: " + e);
                    finishJSTest();
                });
            }, function(e) {
                testFailed("readEntries failed: " + e);
                finishJSTest();
            });
        }, function(e) {
            testFailed("readEntries failed: " + e);
            finishJSTest();
        });
    }, function(e) {
        testFailed("readEntries failed: " + e);
        finishJSTest();
    });
};

dropzone.ondragover = function(ev) {
    ev.preventDefault();
}

onload = function() {
    dragFilesOntoElement(dropzone, ['../../../fast/forms/file/entries-api/resources/testFiles']);
}
</script>
</body>
</html>