<?php
    if (!defined('CHYRP_VERSION'))
        exit;
?>
var ChyrpComment = {
    editing: 0,
    notice: 0,
    interval: null,
    failed: false,
    reload: <?php esce($config->module_comments["enable_reload_comments"]); ?>,
    delay: Math.abs(<?php esce($config->module_comments["auto_reload_comments"] * 1000); ?>),
    per_page: <?php esce($config->module_comments["comments_per_page"]); ?>,
    init: function() {
        if (ChyrpComment.reload && ChyrpComment.delay > 0)
            ChyrpComment.interval = setInterval(ChyrpComment.fetch, ChyrpComment.delay);

        $("#add_comment:not(.no_ajax)").on(
            "submit",
            function(e) {
                if (!ChyrpComment.failed && !!window.FormData) {
                    e.preventDefault();
                    $("ol.comments .comment_form").loader();

                    // Submit the form.
                    $.ajax(
                        {
                            error: ChyrpComment.panic,
                            type: "POST",
                            url: Site.ajax_url,
                            data: new FormData(this),
                            processData: false,
                            contentType: false,
                            dataType: "json"
                        }
                    ).done(
                        function(response) {
                            $("ol.comments .comment_form").loader(true);
                            alert(response.text);

                            // Reload the page to view the newly created comment.
                            if (response.data !== false)
                                window.location.reload(true);
                        }
                    );
                }
            }
        );
        $("ol.comments").on(
            "click",
            ".comment_edit_link:not(.no_ajax)",
            function(e) {
                if (!ChyrpComment.failed) {
                    e.preventDefault();
                    var id = $(this).attr("id").replace(/comment_edit_/, "");
                    ChyrpComment.edit(id);
                }
            }
        );
        $("ol.comments").on(
            "click",
            ".comment_delete_link:not(.no_ajax)",
            function(e) {
                var m = '<?php esce(__("Are you sure you want to permanently delete this comment?", "comments")); ?>';

                if (!ChyrpComment.failed) {
                    e.preventDefault();
                    ChyrpComment.notice++;

                    if (confirm(m)) {
                        var id = $(this).attr("id").replace(/comment_delete_/, "");
                        ChyrpComment.destroy(id);
                    }

                    ChyrpComment.notice--;
                }
            }
        );
    },
    fetch: function() {
        if (
            ChyrpComment.failed
            || $("ol.comments").attr("data-post_id") == undefined
            || $("ol.comments").attr("data-timestamp") == undefined
        )
            return;

        var comments = $("ol.comments");
        var id = comments.attr("data-post_id");
        var ts = comments.attr("data-timestamp");

        if (
            ChyrpComment.editing == 0
            && ChyrpComment.notice == 0
            && !ChyrpComment.failed
            && $("ol.comments .comment").length < ChyrpComment.per_page
        ) {
            $.ajax(
                {
                    error: ChyrpComment.panic,
                    type: "POST",
                    dataType: "json",
                    url: Site.ajax_url,
                    data: {
                        action: "reload_comments",
                        post_id: id,
                        last_comment: ts
                    }
                }
            ).done(
                function(response) {
                    if (response.data.comment_ids.length > 0) {
                        $("ol.comments").attr("data-timestamp", response.data.last_comment);
                        $.each(
                            response.data.comment_ids,
                            function(i, id) {
                                $.post(
                                    Site.ajax_url, {
                                        action: "show_comment",
                                        comment_id: id
                                    }, function(data) {
                                        $(data).insertBefore("#comment_shim").hide().fadeIn("slow");
                                    },
                                    "html"
                                ).fail(ChyrpComment.panic);
                            }
                        );
                    }
                }
            );
        }
    },
    edit: function(id) {
        ChyrpComment.editing++;

        var thisItem = $("#comment_" + id).loader();

        $.post(
            Site.ajax_url,
            {
                action: "edit_comment",
                comment_id: id,
                hash: Visitor.token
            },
            function(data) {
                thisItem.fadeOut(
                    "fast",
                    function() {
                        $(this).loader(true);
                        $(this).empty().append(data).fadeIn(
                            "fast",
                            function() {
                                var thisForm = $("#comment_edit_" + id);

                                thisForm.on(
                                    "submit",
                                    function(e) {
                                        if (!ChyrpComment.failed && !!window.FormData) {
                                            e.preventDefault();
                                            thisItem.loader();

                                            // Submit the form.
                                            $.ajax(
                                                {
                                                    error: ChyrpComment.panic,
                                                    type: "POST",
                                                    url: Site.ajax_url,
                                                    data: new FormData(thisForm[0]),
                                                    processData: false,
                                                    contentType: false,
                                                    dataType: "json"
                                                }
                                            ).done(
                                                function(response) {
                                                    // Validation failed if data value is false.
                                                    if (response.data === false) {
                                                        $(thisItem).loader(true);
                                                        alert(response.text);
                                                        return;
                                                    }

                                                    ChyrpComment.editing--;

                                                    // Load the updated post in place of the edit form.
                                                    $.post(
                                                        Site.ajax_url,
                                                        {
                                                            action: "show_comment",
                                                            comment_id: id
                                                        },
                                                        function(data) {
                                                            thisItem.fadeOut(
                                                                "fast",
                                                                function() {
                                                                    $(this).replaceWith(data).fadeIn("fast");
                                                                }
                                                            );
                                                        },
                                                        "html"
                                                    ).fail(ChyrpComment.panic);
                                                }
                                            );
                                        }
                                    }
                                );
                                $("#comment_cancel_edit_" + id).click(
                                    function(e) {
                                        e.preventDefault();

                                        if (!ChyrpComment.failed) {
                                            thisItem.loader();
                                            $.post(
                                                Site.ajax_url,
                                                {
                                                    action: "show_comment",
                                                    comment_id: id
                                                },
                                                function(data) {
                                                    thisItem.fadeOut(
                                                        "fast",
                                                        function() {
                                                            $(this).replaceWith(data).fadeIn("fast");
                                                        }
                                                    );
                                                }
                                            );
                                            ChyrpComment.editing--;
                                        }
                                    }
                                );
                            }
                        );
                    }
                );
            },
            "html"
        ).fail(ChyrpComment.panic);
    },
    destroy: function(id) {
        var thisItem = $("#comment_" + id).loader();

        $.post(
            Site.ajax_url,
            {
                action: "destroy_comment",
                id: id,
                hash: Visitor.token
            },
            function(response) {
                thisItem.fadeOut(
                    "fast",
                    function() {
                        $(this).remove();
                    }
                );
                $("ol.comments").focus();
            },
            "json"
        ).fail(ChyrpComment.panic);
    },
    panic: function(message) {
        message = (typeof message === "string") ?
            message :
            Oops.message ;

        ChyrpComment.failed = true;
        Oops.count++;
        alert(message);
        $(".ajax_loading").loader(true);
        $("ol.comments form input[name='ajax']").remove();
    }
};
$(document).ready(ChyrpComment.init);