{% macro render_thumbnail(parent, thumbnail_size=None, no_external_references=False) -%}
    {% set thumb = parent.thumbnail(thumbnail_size) %}
    {% if not no_external_references and thumb %}
        <a href="{{parent.link}}">
            <img class="preview" src="{{thumb.src}}" loading="lazy"
                {% if thumb.width %}width="{{thumb.width}}"{% endif %}
                {% if thumb.height %} height="{{thumb.height}}"{% endif %} />
        </a>
    {% else %}
        <!-- no preview available -->
    {% endif %}
{%- endmacro %}

{% macro render_message(message, preview_size=None, no_external_references=False) -%}
    <div class="message-container{%if message.subtype %} {{message.subtype}} {%endif%}">
        <div id="{{ message.id }}">
            {% if not message.is_recent_msg %}
                <div class="old-message">
            {% endif %}
            {% if not message.is_thread_msg %}
                <div class="message">
            {% else %}
                <div class="reply">
            {% endif %}
            {% if not no_external_references and not message.is_thread_msg %}
                {% if message.img %}<img src="{{ message.img }}" class="user_icon" loading="lazy" />{%else%}<div class="user_icon"></div>{%endif%}
            {% elif not no_external_references and message.is_thread_msg %}
                {% if message.img %}<img src="{{ message.img }}" class="user_icon_reply" loading="lazy" />{%else%}<div class="user_icon_reply"></div>{%endif%}
            {% endif %}
                <div class="username">{{ message.username }}
                    {%if message.user.email%} <span class="print-only user-email">({{message.user.email}})</span>{%endif%}
                </div>
                <a href="#{{ message.id}}"><div class="time">{{ message.time }}</div></a>
                <a href="{{ message.permalink}}"><div class="permalink">permalink</div></a>
                <div class="msg">
                    {{ message.msg|safe }}
                    {% for attachment in message.attachments -%}
                        <div class="message-attachment"
                            {%if attachment.color %}style="border-color: #{{attachment.color}}"{%endif%}>
                            {%if attachment.service_name %}<div class="service-name">{{ attachment.service_name }}</div>{%endif%}
                            {%if attachment.author_name%}
                                <div class="attachment-author">
                                    {% if not no_external_references %}
                                        <img src="{{attachment.author_icon}}" class="icon" loading="lazy" />
                                    {% endif %}
                                    {%if attachment.author_link%}<a href="{{attachment.author_link}}">{%endif%}
                                    {{attachment.author_name}}
                                    {%if attachment.author_link%}</a><span class="print-only">({{attachment.author_link}})</span>{%endif%}
                                </div>
                            {%endif%}
                            {% if not no_external_references %}
                                {%if attachment.pretext %}<div class="pre-text">{{attachment.pretext}}</div>{%endif%}
                                <div class="link-title"><a href="{{ attachment.title_link }}">{{ attachment.title }}</a></div>
                                <div class="link-text">
                                    {{attachment.text}}
                                </div>
                                {%for field in attachment.fields %}
                                    <div class="attachment-field">
                                        {%if field.title %}<div class="field-title">{{field.title}}</div>{%endif%}
                                        {{field.value}}
                                    </div>
                                {%endfor%}
                                {{ render_thumbnail(attachment, preview_size) }}
                                {% if attachment.original_url %}
                                    <div class="print-only">Original URL: {{attachment.original_url}}</div>
                                {% endif %}
                                {%if attachment.footer%}
                                    <div class="attachment-footer">
                                        <img src="{{attachment.footer_icon}}" class="icon" loading="lazy" />
                                        {{attachment.footer}}
                                    </div>
                                {%endif%}
                            {%endif%}
                        </div>
                    {% endfor  %}
                    {% for file in message.files  -%}
                        <div class="message-upload">
                            <div class="link-title"><a href="{{ file.link }}">{{ file.title }}</a></div>
                            {% if not no_external_references %}
                                {{ render_thumbnail(file, preview_size) }}
                            {%endif%}
                        </div>
                    {% endfor %}
                    {% for reaction in message.reactions %}
                        <div class="message-reaction">
                        {{ reaction.name }} {{ reaction.usernames|join(', ') }}
                        </div>
                    {% endfor %}
                </div>
            </div>
        </div>
    </div>
{%- endmacro %}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Slack Export - {{ workspace_name }}</title>
    <style>
        @import url('https://fonts.googleapis.com/css?family=Lato:400,900');

        html {
            font-family: 'Lato', sans-serif;
        }

        body {
            padding: 0;
            margin: 0;
        }

        #slack-archive-viewer {
            padding: 0;
            margin: 0;
            height: 100vh;
            overflow: hidden;
        }

        #sidebar {
          display: inline-block;
          width: 280px;
          color: white;
          text-align: left;
          background-color: #4D394B;
          z-index: 10;
          overflow-y: scroll;
          overflow-x: auto;
          height: 100vh;
          user-select: none;
        }

        #sidebar a {
            color: white;
            font-size: 14px;
        }

        #sidebar h3 {
          margin: 20px 20px;
          color: white;
          font-weight: 900;
        }

        #sidebar h3:hover {
          cursor: pointer;
        }

        #sidebar h3::after {
          content: '❯ ';
          display: inline-block;
          -webkit-transform: rotate(90deg);
          transform: rotate(90deg);
          margin-left: 15px;
        }

        #sidebar h3.arrow::after {
          margin-left: 10px;
          -webkit-transform: none;
          transform: none;
        }

        .messages {
            width: calc(100vw - 325px);
            height: 100vh;
            text-align: left;
            display: inline-block;
            padding-left: 20px;
            padding-right: 20px;
            overflow-y: scroll;
        }

        .message-container {
            clear: left;
            min-height: 56px;
        }

        .message-container:first-child {
            margin-top: 20px;
        }

        .message-container:last-child {
            margin-bottom: 20px;
        }

        .message-container .user_icon {
            background-color: rgb(248, 244, 240);
            width: 36px;
            height: 36px;
            border-radius: 0.2em;
            display: inline-block;
            vertical-align: top;
            margin-right: 0.65em;
            float: left;
        }

        .message-container .user_icon_reply {
            background-color: rgb(248, 244, 240);
            width: 36px;
            height: 36px;
            border-radius: 0.2em;
            display: inline-block;
            vertical-align: top;
            margin-right: 0.65em;
            margin-left: 40px;
            float: left;
        }

        .message-container .time {
            display: inline-block;
            color: rgb(200, 200, 200);
            margin-left: 0.5em;
        }

        .message-container .username {
            display: inline-block;
            font-weight: 600;
            line-height: 1;
        }

        .message-container .user-email {
            font-weight: normal;
            font-style: italic;
        }

        .message-container .message {
            display: inline-block;
            vertical-align: top;
            line-height: 1;
            width: calc(100% - 3em);
        }

        .message-container .reply {
            vertical-align: top;
            line-height: 1;
            width: calc(100% - 3em);
            margin-left: 80px;
        }

        .message-container .msg p {
            white-space: pre-wrap;
        }

        .message-container .msg pre {
            background-color: #E6E5DF;
            white-space: pre-wrap;
        }

        .message-container .message .msg {
            line-height: 1.5;
        }

        .message-container .reply .msg {
            line-height: 1.5;
        }

        .message-container .message .msg a {
            overflow-wrap: anywhere;
        }

        .message-container .reply .msg a {
            overflow-wrap: anywhere;
        }

        .message-container .message-attachment {
            padding-left: 5px;
            border-left: 2px gray solid;
            overflow-wrap: anywhere;
        }

        .message-container .message-attachment .service-name {
            color: #999999;
        }

        .message-container .icon {
            max-width: 10px;
        }

        .message-container .old-message {
            color: #999999;
        }

        .channel_join .msg, .channel_topic .msg,
        .bot_add .msg, .app_conversation_join .msg {
            font-style: italic;
        }

        .attachment-footer {
            font-size: small;
        }

        .list {
            margin: 0;
            padding: 0;
            list-style-type: none;
        }

        .list li {
            padding: 4px 20px;
        }

        .list li a {
          width: 100%;
          padding: 10px 20px;
        }

        .list li.active {
            background-color: #4C9689;
        }

        .list li.active:hover {
            background-color: #4C9689;
        }

        .list li:hover {
            text-decoration: none;
            background: #3E313C;
        }

        .list li a:hover {
            text-decoration: none;
        }

        a:link,
        a:visited,
        a:active {
            color: #2a80b9;
            text-decoration: none;
        }

        a:hover {
            color: #439fe0;
            text-decoration: underline;
        }

        .close {
          display: none;
        }

        @media screen {
            .print-only { display: none }
        }

        img.preview {
            max-width: 100%;
            height: auto;
        }
        .channel-block {
            page-break-after: always;
        }
        .export-metadata {
            line-height: 2;
        }
    </style>
</head>
<body>
    <h1>TEMPLATE Export of Slack Workspace "{{workspace_name}}"</h1>
    <table class="export-metadata">
        <tr><td>Generated from file:</td><td><b>{{source_file}}</b></td></tr>
        <tr><td>Generated on:</td><td> <b>{{generated_on.strftime("%F %H:%M:%S")}}</b></td></tr>
    </table>
    </div>
    {% for dm in dms %}
    <div class="message-block">
        <h2>DM with {{dm.name}}</h2>
        <div class="message-list">
            {% for message in dm.messages %}
                {{render_message(message)}}
            {% endfor %}
        </div>
    </div>
    {% endfor %}
    {% for mpim in mpims %}
    <div class="message-block">
        <h2>Group DM with {{mpim.name}}</h2>
        <div class="message-list">
            {% for message in mpim.messages %}
                {{render_message(message)}}
            {% endfor %}
        </div>
    {% endfor %}
    {% for channel in channels %}
    <div class="channel-block">
        <h2>Messages in #{{channel.channel_name}}</h2>
        <div class="message-list">
            {% for message in channel.messages %}
                {{render_message(message)}}
            {% endfor %}
        </div>
    </div>
    {% endfor %}
</body>
</html>