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
    }
});

let changeUrl = true;

// var edits = ["#title", "#description", "#content"];

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

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

var shift = false;

$('span').keydown(function (e) {
    var key = e.keyCode;
    console.log(key);

    // Shift Control

    if (key === 16) {
        shift = true;
    }

    // Ctrl + Return Control
    if (key === 13 && (e.ctrlKey || e.metaKey)) {
        console.log('test');
        e.preventDefault();
        $(this).attr('contentEditable', false);
    }

    // Tab Control
    if (key === 9) {
        e.preventDefault();
        $(this).attr('contentEditable', false);
        var pos = edits.indexOf("#" + $(this).attr('id'));
        console.log(pos);
        if (shift) {
            $(edits[pos - 1]).attr('contentEditable', true);
        } else {
            $(edits[pos + 1]).attr('contentEditable', true);
        }
    }


});

$('.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;
    }
});

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({
        typeaheadjs: {
            name: 'blogposttags',
            source: substringMatcher(tagsList)
        }
    });

    $('#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"
        }
    });
});

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').val(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').on('click', () => {
    $(this).button('loading');
    sendPost();
});

$('#blogSubmit').on('click', function () {
    $(this).button('loading');
    sendPost(publishPost);
});

// 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);
});

var substringMatcher = function (strs) {
    return function findMatches(q, cb) {
        var matches, substringRegex;

        // 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');

        // 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)) {
                matches.push(str);
            }
        });

        cb(matches);
    };
};