var templates = []
var icons = {
    "application/vnd.ms-excel": "fa-file-excel-o",
    "text/plain": "fa-file-text-o",
    "image/gif": "fa-file-image-o",
    "image/png": "fa-file-image-o",
    "application/pdf": "fa-file-pdf-o",
    "application/x-zip-compressed": "fa-file-archive-o",
    "application/x-gzip": "fa-file-archive-o",
    "application/vnd.openxmlformats-officedocument.presentationml.presentation": "fa-file-powerpoint-o",
    "application/vnd.openxmlformats-officedocument.wordprocessingml.document": "fa-file-word-o",
    "application/octet-stream": "fa-file-o",
    "application/x-msdownload": "fa-file-o"
}

// Save attempts to POST to /templates/
function save(idx) {
    var template = {
        attachments: []
    }
    template.name = $("#name").val()
    template.subject = $("#subject").val()
    template.html = CKEDITOR.instances["html_editor"].getData();
    // Fix the URL Scheme added by CKEditor (until we can remove it from the plugin)
    template.html = template.html.replace(/https?:\/\/{{\.URL}}/gi, "{{.URL}}")
        // If the "Add Tracker Image" checkbox is checked, add the tracker
    if ($("#use_tracker_checkbox").prop("checked") &&
        template.html.indexOf("{{.Tracker}}") == -1 &&
        template.html.indexOf("{{.TrackingUrl}}") == -1) {
        template.html = template.html.replace("</body>", "{{.Tracker}}</body>")
    } else {
        // Otherwise, remove the tracker
        template.html = template.html.replace("{{.Tracker}}</body>", "</body>")
    }
    template.text = $("#text_editor").val()
        // Add the attachments
    $.each($("#attachmentsTable").DataTable().rows().data(), function(i, target) {
        template.attachments.push({
            name: target[1],
            content: target[3],
            type: target[4],
        })
    })
    if (idx != -1) {
        template.id = templates[idx].id
        api.templateId.put(template)
            .success(function(data) {
                successFlash("Template edited successfully!")
                load()
                dismiss()
            })
    } else {
        // Submit the template
        api.templates.post(template)
            .success(function(data) {
                successFlash("Template added successfully!")
                load()
                dismiss()
            })
            .error(function(data) {
                modalError(data.responseJSON.message)
            })
    }
}

function dismiss() {
    $("#modal\\.flashes").empty()
    $("#attachmentsTable").dataTable().DataTable().clear().draw()
    $("#name").val("")
    $("#subject").val("")
    $("#text_editor").val("")
    $("#html_editor").val("")
    $("#modal").modal('hide')
}

function deleteTemplate(idx) {
    if (confirm("Delete " + templates[idx].name + "?")) {
        api.templateId.delete(templates[idx].id)
            .success(function(data) {
                successFlash(data.message)
                load()
            })
    }
}

function attach(files) {
    attachmentsTable = $("#attachmentsTable").DataTable({
        destroy: true,
        "order": [
            [1, "asc"]
        ],
        columnDefs: [{
            orderable: false,
            targets: "no-sort"
        }, {
            sClass: "datatable_hidden",
            targets: [3, 4]
        }]
    });
    $.each(files, function(i, file) {
        var reader = new FileReader();
        /* Make this a datatable */
        reader.onload = function(e) {
            var icon = icons[file.type] || "fa-file-o"
                // Add the record to the modal
            attachmentsTable.row.add([
                '<i class="fa ' + icon + '"></i>',
                file.name,
                '<span class="remove-row"><i class="fa fa-trash-o"></i></span>',
                reader.result.split(",")[1],
                file.type || "application/octet-stream"
            ]).draw()
        }
        reader.onerror = function(e) {
            console.log(e)
        }
        reader.readAsDataURL(file)
    })
}

function edit(idx) {
    $("#modalSubmit").unbind('click').click(function() {
        save(idx)
    })
    $("#attachmentUpload").unbind('click').click(function() {
        this.value = null
    })
    $("#html_editor").ckeditor()
    $("#attachmentsTable").show()
    attachmentsTable = $('#attachmentsTable').DataTable({
        destroy: true,
        "order": [
            [1, "asc"]
        ],
        columnDefs: [{
            orderable: false,
            targets: "no-sort"
        }, {
            sClass: "datatable_hidden",
            targets: [3, 4]
        }]
    });
    var template = {
        attachments: []
    }
    if (idx != -1) {
        template = templates[idx]
        $("#name").val(template.name)
        $("#subject").val(template.subject)
        $("#html_editor").val(template.html)
        $("#text_editor").val(template.text)
        $.each(template.attachments, function(i, file) {
            var icon = icons[file.type] || "fa-file-o"
                // Add the record to the modal
            attachmentsTable.row.add([
                '<i class="fa ' + icon + '"></i>',
                file.name,
                '<span class="remove-row"><i class="fa fa-trash-o"></i></span>',
                file.content,
                file.type || "application/octet-stream"
            ]).draw()
        })
        if (template.html.indexOf("{{.Tracker}}</body>") != -1) {
            $("#use_tracker_checkbox").prop("checked", true)
        } else {
            $("#use_tracker_checkbox").prop("checked", false)
        }
    }
    // Handle Deletion
    $("#attachmentsTable").unbind('click').on("click", "span>i.fa-trash-o", function() {
        attachmentsTable.row($(this).parents('tr'))
            .remove()
            .draw();
    })
}

function copy(idx) {
    $("#modalSubmit").unbind('click').click(function() {
        save(-1)
    })
    $("#attachmentUpload").unbind('click').click(function() {
        this.value = null
    })
    $("#html_editor").ckeditor()
    $("#attachmentsTable").show()
    attachmentsTable = $('#attachmentsTable').DataTable({
        destroy: true,
        "order": [
            [1, "asc"]
        ],
        columnDefs: [{
            orderable: false,
            targets: "no-sort"
        }, {
            sClass: "datatable_hidden",
            targets: [3, 4]
        }]
    });
    var template = {
        attachments: []
    }
    template = templates[idx]
    $("#name").val("Copy of " + template.name)
    $("#subject").val(template.subject)
    $("#html_editor").val(template.html)
    $("#text_editor").val(template.text)
    $.each(template.attachments, function(i, file) {
            var icon = icons[file.type] || "fa-file-o"
                // Add the record to the modal
            attachmentsTable.row.add([
                '<i class="fa ' + icon + '"></i>',
                file.name,
                '<span class="remove-row"><i class="fa fa-trash-o"></i></span>',
                file.content,
                file.type || "application/octet-stream"
            ]).draw()
        })
        // Handle Deletion
    $("#attachmentsTable").unbind('click').on("click", "span>i.fa-trash-o", function() {
        attachmentsTable.row($(this).parents('tr'))
            .remove()
            .draw();
    })
    if (template.html.indexOf("{{.Tracker}}</body>") != -1) {
        $("#use_tracker_checkbox").prop("checked", true)
    } else {
        $("#use_tracker_checkbox").prop("checked", false)
    }
}

function importEmail() {
    raw = $("#email_content").val()
    if (!raw) {
        modalError("No Content Specified!")
    } else {
        $.ajax({
                type: "POST",
                url: "/api/import/email",
                data: raw,
                dataType: "json",
                contentType: "text/plain"
            })
            .success(function(data) {
                $("#text_editor").val(data.text)
                $("#html_editor").val(data.html)
                $("#subject").val(data.subject)
                $("#importEmailModal").modal("hide")
            })
            .error(function(data) {
                modalError(data.responseJSON.message)
            })
    }
}

function load() {
    $("#templateTable").hide()
    $("#emptyMessage").hide()
    $("#loading").show()
    api.templates.get()
        .success(function(ts) {
            templates = ts
            $("#loading").hide()
            if (templates.length > 0) {
                $("#templateTable").show()
                templateTable = $("#templateTable").DataTable({
                    destroy: true,
                    columnDefs: [{
                        orderable: false,
                        targets: "no-sort"
                    }]
                });
                templateTable.clear()
                $.each(templates, function(i, template) {
                    templateTable.row.add([
                        template.name,
                        moment(template.modified_date).format('MMMM Do YYYY, h:mm:ss a'),
                        "<div class='pull-right'><span data-toggle='modal' data-target='#modal'><button class='btn btn-primary' data-toggle='tooltip' data-placement='left' title='Edit Template' onclick='edit(" + i + ")'>\
                    <i class='fa fa-pencil'></i>\
                    </button></span>\
		    <span data-toggle='modal' data-target='#modal'><button class='btn btn-primary' data-toggle='tooltip' data-placement='left' title='Copy Template' onclick='copy(" + i + ")'>\
                    <i class='fa fa-copy'></i>\
                    </button></span>\
                    <button class='btn btn-danger' data-toggle='tooltip' data-placement='left' title='Delete Template' onclick='deleteTemplate(" + i + ")'>\
                    <i class='fa fa-trash-o'></i>\
                    </button></div>"
                    ]).draw()
                })
                $('[data-toggle="tooltip"]').tooltip()
            } else {
                $("#emptyMessage").show()
            }
        })
        .error(function() {
            $("#loading").hide()
            errorFlash("Error fetching templates")
        })
}

$(document).ready(function() {
    // Setup multiple modals
    // Code based on http://miles-by-motorcycle.com/static/bootstrap-modal/index.html
    $('.modal').on('hidden.bs.modal', function(event) {
        $(this).removeClass('fv-modal-stack');
        $('body').data('fv_open_modals', $('body').data('fv_open_modals') - 1);
    });
    $('.modal').on('shown.bs.modal', function(event) {
        // Keep track of the number of open modals
        if (typeof($('body').data('fv_open_modals')) == 'undefined') {
            $('body').data('fv_open_modals', 0);
        }
        // if the z-index of this modal has been set, ignore.
        if ($(this).hasClass('fv-modal-stack')) {
            return;
        }
        $(this).addClass('fv-modal-stack');
        // Increment the number of open modals
        $('body').data('fv_open_modals', $('body').data('fv_open_modals') + 1);
        // Setup the appropriate z-index
        $(this).css('z-index', 1040 + (10 * $('body').data('fv_open_modals')));
        $('.modal-backdrop').not('.fv-modal-stack').css('z-index', 1039 + (10 * $('body').data('fv_open_modals')));
        $('.modal-backdrop').not('fv-modal-stack').addClass('fv-modal-stack');
    });
    $.fn.modal.Constructor.prototype.enforceFocus = function() {
        $(document)
            .off('focusin.bs.modal') // guard against infinite focus loop
            .on('focusin.bs.modal', $.proxy(function(e) {
                if (
                    this.$element[0] !== e.target && !this.$element.has(e.target).length
                    // CKEditor compatibility fix start.
                    && !$(e.target).closest('.cke_dialog, .cke').length
                    // CKEditor compatibility fix end.
                ) {
                    this.$element.trigger('focus');
                }
            }, this));
    };
    $('#modal').on('hidden.bs.modal', function(event) {
        dismiss()
    });
    load()
})