const toolbarOptions = [
    [{'header': [2, 3, 4, 5, 6, false]}],

    ['bold', 'italic', 'underline', 'strike'],        // toggled buttons
    ['image', 'video'],
    ['link', 'code-block', 'blockquote'],

    [{'list': 'ordered'}, {'list': 'bullet'}],
    [{'script': 'sub'}, {'script': 'super'}],      // superscript/subscript
    [{'indent': '-1'}, {'indent': '+1'}],          // outdent/indent

    [{'color': []}, {'background': []}],          // dropdown with defaults from theme
    [{'align': []}]

        ['clean']
];

// const quill = new Quill('#postContent', {
//     theme: 'snow',
//     bounds: '#postContent .ql-editor',
//     modules: {
//         syntax: true,
//         toolbar: toolbarOptions
//     }
// });

const editor = tinymce.init({
    selector: '#postContent',
    plugins: [
      'advlist autolink link image lists charmap print preview hr anchor pagebreak spellchecker',
      'searchreplace wordcount visualblocks visualchars code fullscreen insertdatetime media nonbreaking',
      'save table contextmenu directionality emoticons template paste textcolor'
    ],
    templates: '/admin/blog/getTemplates',
    toolbar: 'insertfile undo redo | styleselect | bold italic | alignleft aligncenter alignright alignjustify | bullist numlist outdent indent | link image | print preview media fullpage | forecolor backcolor emoticons'
});

let changeUrl = true;


// Prevent the backspace key from navigating back.
$(document).on("keydown", function (e) {
    if (e.which === 8 && !$(e.target || e.srcElement).is("span, [contenteditable=true], input")) {
        e.preventDefault();
        return false;
    }
});

// var autolist = new AutoList();
// var editor = new MediumEditor('#content', {
//     extensions: {
//         'autolist': autolist
//     }
// });
// $('#content').mediumInsert({
//     editor: editor
// });

// TODO
// $(function () {
//     $('#content').mediumInsert({
//         editor: editor
//     });
// });

$('#postTitle').bind('click', function () {
    $(this).attr('contentEditable', true);
}).blur(
    function () {
        $(this).attr('contentEditable', false);
    });

$('#postTitle').on('keyup', function () {
    if (changeUrl) {
        var title = prepareString($('#postTitle').text());
        $('#postUrl').val(encodeURI(title));
    }
});

$('#postDescription').bind('click', function () {
    $(this).attr('contentEditable', true);
}).blur(
    function () {
        $(this).attr('contentEditable', false);
    });

$('#postCategory').bind('change', function () {
    switchCategory();
});

function switchCategory() {
    if ($('#postCategory').val() === 'new-category') {
        $('#new-category').fadeIn(250);
    } else {
        $('#new-category').fadeOut(250);
    }
}

$('#cat-dname').bind('keyup', function () {
    $('#cat-name').val(prepareString($(this).val()));
});

function prepareString(input) {
    input = input.toLowerCase()
        .replace(/ /g, '-') // Remove spaces
        .replace(/ä/g, 'ae') // Remove umlauts
        .replace(/ö/g, 'oe')
        .replace(/ü/g, 'ue')
        .replace(/[^a-z1-9-]/g, '') // Remove non alphanumerical chars
        .replace(/--+/g, '-'); // Prevent multiple dashes
    return input;
}

var shift = false;

const edits = ["#postTitle", "#postDescription", ".ql-editor"];
$(edits.toString()).keydown(function (e) {
    const key = e.key;

    // Shift Control
    if (key === 'Shift') {
        shift = true;
    }

    // Ctrl + Return Control
    if (key === 'Enter' && (e.ctrlKey || e.metaKey)) {
        e.preventDefault();
        $(this).attr('contentEditable', false);
    }

    // Tab Control
    if (key === 'Tab') {
        e.preventDefault();
        $(this).attr('contentEditable', false);
        let pos = edits.findIndex(edit => edit === '#' + $(this).attr('id') || $(this).hasClass(edit.substr(1)));
        if (shift) {
            pos--;
            if (pos < 0)
                pos = edits.length - 1;
        } else {
            pos++;
            if (pos >= edits.length)
                pos = 0;
        }
        $(edits[pos]).attr('contenteditable', true).focus();
    }


});

$('.noEnter').keydown(function (e) {
    var key = e.keyCode;

    // Return Control
    if (key === 13 && $(this).hasClass('noEnter')) {
        e.preventDefault();
        $(this).attr('contentEditable', false);
    }
});


$('span').keyup(function (e) {
    var key = e.keyCode;

    // Shift Control
    if (key === 16) {
        shift = false;
    }
});

const existingTags = new Bloodhound({
    // datumTokenizer: Bloodhound.tokenizers.obj.whitespace('name'),
    // queryTokenizer: Bloodhound.tokenizers.whitespace,
    datumTokenizer: Bloodhound.tokenizers.whitespace,
    queryTokenizer: Bloodhound.tokenizers.whitespace,
    // prefetch: {
    //     url: '/admin/blog/tagsList',
        // filter: function (list) {
        //     return $.map(list, function (cityname) {
        //         return {name: cityname};
        //     });
        // }
    // }
    prefetch: {
        url: '/admin/blog/tagsList',
        cache: true
    }
    // local: ['Hallo Welt', 'Hund', 'Test', 'Geht doch']

});
existingTags.initialize();

// $('#postTags').typeahead({
//     hint: true,
//     highlight: true,
//     minLength: 1
// }, {
//     name: 'existingTags',
//     source: existingTags,
// });

let tagsList = [];
$(function () {
    $.ajax({
        url: '/admin/blog/tagsList',
        method: 'GET',
        success: function (data) {
            console.log(data);
            for (let tag of data) {
                tagsList.push(tag.display_name);
            }
        }
    });

    // $('#postTags').tagsinput();
    //
    $('#postTags').tagsinput({
        // itemText: 'display_name',
        typeaheadjs: {
            source: ['Test', 'Value'],
            name: 'existingTags',
            // displayKey: 'display_name',
            // source: existingTags.ttAdapter()
            // source: substringMatcher(['Hallo', 'test', 'Hund'])
        }
    });

    $('#postTags').keydown(function (e) {
        if (e.keyCode === 9 || e.keyCode === 13) {
            e.preventDefault();
        }
    });

    if ($('#postID').val() !== '-1') {
        getPostData();
        getPostTags();
        // getTranslations();

        if ($('#contentID').val() !== '-1') {
            getContentData();
        }

        if ($('#translationID').val() !== '-1') {
            getTranslationData();
        }
    }

    $('#postPublishDate').datetimepicker({
        format: 'DD.MM.YYYY HH:mm',
        stepping: '10',
        sideBySide: true,
        showTodayButton: true,
        icons: {
            time: "fa fa-clock-o",
            date: "fa fa-calendar",
            up: "fa fa-arrow-up",
            down: "fa fa-arrow-down"
        }
    });
});

Number.prototype.pad = function (size) {
    let s = String(this);
    while (s.length < (size || 2)) s = "0" + s;
    return s;
};

function convertDate(dbDate) {
    const date = new Date(dbDate);
    console.log(date);

    const day = date.getDate().pad();
    const month = (date.getMonth() + 1).pad();
    const year = date.getFullYear();

    const hour = date.getHours().pad();
    const minutes = date.getMinutes().pad();

    return `${day}.${month}.${year} ${hour}:${minutes}`;
}

function getPostData() {
    const postID = $('#postID').val();
    $.ajax({
        url: '/admin/blog/getPost',
        method: 'post',
        data: {
            postID
        },
        success: (result) => {
            console.log(result);

            if (result.status === 'success') {
                $('#postUrl').val(result.postData.postUrl);
                $('#postCategory').val(result.postData.postCategoryID);
                switchCategory();

                $('#postPublishDate').data('DateTimePicker').setValue(convertDate(result.postData.postPublishDate));
                // $('#postPublishDate').val(convertDate(result.postData.postPublishDate));
                $('#uploadedImage').val(result.postData.postImage);
                $('.img-container').css('background-image', 'url(' + result.postData.postImage + ')');

                if (result.postData.postState === "1") {
                    $('#postUrl').attr('disabled', '');
                    changeUrl = false;
                    $('#postUrl').keydown((e) => {
                        e.preventDefault();
                    });
                }
            }
        }
    })
}

function getContentData() {
    const postID = $('#postID').val();
    const contentID = $('#contentID').val();
    const lang = $('#postLanguage').val();
    $.ajax({
        url: '/admin/blog/getContent',
        method: 'post',
        data: {
            postID, contentID, lang
        },
        success: (result) => {
            console.log(result);
            if (result.status === 'success') {
                quill.clipboard.dangerouslyPasteHTML(result.contentData.content);
                // $('#contentID').val('-1');
            }
        }
    })
}

function getTranslationData() {
    const postID = $('#postID').val();
    const translationID = $('#translationID').val();
    const lang = $('#postLanguage').val();
    $.ajax({
        url: '/admin/blog/getTranslationData',
        method: 'post',
        data: {
            postID, translationID, lang
        },
        success: (result) => {
            console.log(result);

            if (result.status === 'success') {
                $('#postTitle').text(result.translationData.postTitle);
                $('#postDescription').text(result.translationData.postDesc);
            }
        }
    })
}

function getPostTags() {
    const postID = $('#postID').val();
    $.ajax({
        url: '/admin/blog/getPostTags',
        method: 'POST',
        data: {
            postID
        },
        success: (result) => {
            console.log(result);

            if (result.success) {
                for (let tag of result.tags) {
                    $('#postTags').tagsinput('add', tag.display_name);
                }
            }
        }
    })
}

$(function () {
    $('#switchLanguages > li').click(function () {
        const currentPostTitle = $('#postTitle').text();
        const currentPostDescription = $('#postDescription').text();
        const currentPostContent = quill.getContents();
        const currentContentID = $('#contentID').val();
        const currentTranslationID = $('#translationID').val();

        $('#switchLanguages > li.active').data('title', currentPostTitle)
            .data('description', currentPostDescription)
            .data('content', currentPostContent)
            .data('contentid', currentContentID)
            .data('translationid', currentTranslationID)
            .removeClass('active');

        console.log($(this));

        if ($(this).data('title')) {
            const postTitle = $(this).data('title');
            const postDescription = $(this).data('description');
            const postContent = $(this).data('content');

            $('#postTitle').text(postTitle);
            $('#postDescription').text(postDescription);
            quill.setContents(postContent);
        }

        const contentID = $(this).data('contentid');
        const translationID = $(this).data('translationid');

        $('#contentID').val(contentID);
        $('#translationID').val(translationID);
        $('#postLanguage').val($(this).data('lang'));

        getTranslationData();
        getContentData();

        $(this).addClass('active');
    });
});

function sendPost(executionFinished) {
    const postID = $('#postID').val(),
        contentID = $('#contentID').val(),
        translationID = $('#translationID').val(),
        postImage = $('#uploadedImage').val(),
        postTitle = $('#postTitle').text(),
        postDescription = $('#postDescription').text(),
        postContent = $('.ql-editor').html(),
        postPublishDate = $('#postPublishDate').val(),
        postUrl = $('#postUrl').val(),
        postCategory = $('#postCategory').val(),
        postLanguage = $('#postLanguage').val(),
        postTags = $('#postTags').tagsinput('items');

    $.ajax({
        url: '/admin/blog/sendEdit',
        method: 'post',
        data: {
            postID,
            contentID,
            translationID,
            postImage,
            postTitle,
            postDescription,
            postContent,
            postPublishDate,
            postUrl,
            postCategory,
            postLanguage,
            postTags
        },
        success: (result) => {
            console.log(result);

            if (result.success) {
                $('#postID').val(result.postID);
                $('#contentID').val(result.contentID);
                $('#switchLanguages > li.active').data('contentid', result.contentID);
                $('#translationID').val(result.translationID);
                $('#switchLanguages > li.active').data('translationid', result.translationID);

                $('.snackbar-container').append(`<div class="alert alert-success snackbar" role="alert">${result.message}</div>`);
            } else {
                $('.snackbar-container').append(`<div class="alert alert-danger snackbar" role="alert">${result.message}</div>`);
            }
        },
        error: console.log
    }).done(() => {
        if (executionFinished)
            executionFinished()
    });
}

function publishPost() {
    const postID = $('#postID').val(),
        contentID = $('#contentID').val(),
        contentDE = $('#switchLanguages').find('> li[data-lang=de]').data('contentid'),
        contentEN = $('#switchLanguages').find('> li[data-lang=en]').data('contentid'),
        contentFR = $('#switchLanguages').find('> li[data-lang=fr]').data('contentid');

    $.ajax({
        url: '/admin/blog/publishPost',
        method: 'post',
        data: {
            postID, contentID,
            contentIDs: {'de': contentDE, 'en': contentEN, 'fr': contentFR}
        },
        success: (result) => {
            console.log(result);
            $('#blogSubmit').button('reset');
            if (result.success) {
                $('#postUrl').attr('disabled', '');
                changeUrl = false;
                $('.snackbar-container').append(`<div class="alert alert-success snackbar" role="alert">${result.message}</div>`);
            } else {
                $('.snackbar-container').append(`<div class="alert alert-danger snackbar" role="alert">${result.message}</div>`);
            }
        }
    })
}

$('#blogPostSave').click(() => {
    $(this).button('loading');
    sendPost();
});

$('#blogSubmit').click(() => {
    $(this).button('loading');
    sendPost(publishPost);
});

$('#blogPreview').click(() => openPreview());

let timeoutPreview;
$('body').keyup(() => {
    if (timeoutPreview)
        clearTimeout(timeoutPreview);
    timeoutPreview = setTimeout(() => {
        if (previewWindow)
            openPreview();
    }, 1000);
});

let previewID;
let previewWindow;

function openPreview() {
    const data = {
        postTitle: $('#postTitle').text(),
        postDesc: $('#postDescription').text(),
        // postContent: $('.ql-editor').html(),
        postContent: tinymce.get('postContent').getContent(),
    };

    if (previewID)
        data.previewID = previewID;

    $.ajax({
        url: '/admin/blog/updatePreview',
        data: data,
        method: 'POST',
        success: (data) => {
            if (data.success) {
                previewID = data.previewID;
                console.log(data.session);
                if (!previewWindow) {
                    previewWindow = window.open('http://192.168.178.39/admin/blog/preview?id=' + previewID, '_BLANK');
                } else {
                    previewWindow.location.reload();
                    previewWindow.opener.focus();
                }
            }
        }
    });
}

// Upload Header Image
$('.upload-btn').on('change', '.upload-image', function () {
    $('.upload-btn').fadeOut();
    $('.img-container').append('<i class="fa fa-cog fa-spin fa-4x"></i>');

    const file = this.files[0],
        imageFile = file.type,
        match = ["image/jpeg", "image/jpg", "image/png"];
    if (match.indexOf(imageFile) === -1) {
        return;
    }

    const reader = new FileReader();
    reader.addEventListener('load', () => {
        $('.img-container').css('background-image', 'url(' + reader.result + ')');

        $.ajax({
            url: '/admin/files/uploadImage',
            type: 'POST',
            data: {
                image: reader.result,
                name: file.name,
                type: file.type,
                size: file.size,
            },
            success: (data) => {
                if (data.success) {
                    $('.img-container > .fa').removeClass('fa-spin').removeClass('fa-cog').addClass('fa-check').addClass('text-success')
                        .delay(2000).fadeOut();
                    $('#uploadedImage').val(data.url);
                    $('.snackbar-container').append(`<div class="alert alert-success snackbar" role="alert">${data.message}</div>`);
                } else {
                    $('.img-container > .fa').removeClass('fa-spin').removeClass('fa-cog').addClass('fa-cross').addClass('text-danger')
                        .delay(2000).fadeOut();
                    $('.img-container').delay(2000).css('background-image', '');
                    $('.snackbar-container').append(`<div class="alert alert-danger snackbar" role="alert">${data.message}</div>`);
                }

                setTimeout(() => {
                    $('.upload-btn').fadeIn();
                }, 2500);
            }
        });
    });
    reader.readAsDataURL(file);
});

function substringMatcher(strs) {
    return function findMatches(q, cb) {
        let matches, substrRegex;

        // an array that will be populated with substring matches
        matches = [];

        // regex used to determine if a string contains the substring `q`
        substrRegex = new RegExp(q, 'i');

        console.log('ich bin auc hdavbei #.');

        // iterate through the pool of strings and for any string that
        // contains the substring `q`, add it to the `matches` array
        $.each(strs, function (i, str) {
            if (substrRegex.test(str)) {
                console.log(str);
                matches.push(str);
            }
        });

        cb(matches);
    };
}