{# -*- coding: utf-8 -*-

  Copyright (C) 2025 TU Wien.

  Invenio-Theme-TUW is free software; you can redistribute it and/or modify it
  under the terms of the MIT License; see LICENSE file for more details.
#}

{%- extends config.BASE_TEMPLATE %}

{%- block page_body %}
  <div class="ui container">
    <h1 class="ui dividing header">Outreach email</h1>

    <form class="ui form" action="" method="POST">

      <h2>Metadata</h2>
      <div class="three fields">
        <div class="required field">
          <label for="recipients">Email recipients (<a href="https://www.w3schools.com/sql/sql_wildcards.asp" target="_blank">SQL wildcards</a> are supported)</label>
          <input name="recipients" id="recipients" placeholder="%@tuwien.ac.at" type="text" value="{{ default_values.recipients }}" required autofocus />
        </div>

        <div class="required field">
          <label for="subject">Subject</label>
          <input name="subject" id="subject" placeholder="Listen up buttercup!" type="text" value="{{ default_values.subject }}" required />
        </div>

        <div class="field">
          <label for="sender">Sender</label>
          <input name="sender" id="sender" placeholder="no-reply@tuwien.ac.at" type="text" value="{{ default_values.sender }}" />
        </div>
      </div>

      <h2>Content</h2>
      <p>
        Some users disable the rendering of HTML in their emails, e.g. to be on the safe side about loading and executing code from untrusted sources.
        In such cases, the plain-text variant will be displayed instead.
        <br />
        Note: If either of the formats is omitted, very simple transformations will be used to generate the missing content.
        For complex content, it is recommended to provide manual input for both formats.
      </p>
      <div class="two fields">
        <div class="field">
          <label for="html-msg">HTML-formatted message to send</label>
          <div id="html-msg-container" class="html message container">
            <textarea name="html-msg" id="html-msg">{{ default_values.html_msg }}</textarea>
          </div>
        </div>

        <div class="field">
          <label for="txt-msg">Plain-text message to send</label>
          <div id="txt-msg-container" class="plain text message container">
            <textarea name="txt-msg" id="txt-msg">{{ default_values.txt_msg }}</textarea>
          </div>
        </div>
      </div>

      {%- if not has_data %}
      <input class="ui button" type="submit" formaction="?preview=1" value="Preview email" />
      {%- elif sent_email %}
      <input class="ui button" type="submit" formaction="?preview=1" value="Preview another email" />
      {%- elif not sent_email %}
      <input class="ui button" type="submit" formaction="?preview=1" value="Update preview" />
      <input class="ui positive button" type="submit" formaction="?preview=0" value="Send email" />
      {%- endif %}
    </form>

    {%- if has_data %}
    <hr />
    <div>
      <h2>Preview</h2>
      <p>
        The following email with the subject <strong>{{ subject or "No Subject" }}</strong> will be sent to <strong>{{ users|length }}</strong> recipients.
        This will take about {{ users|length }} seconds.
      </p>

      <h3>HTML-formatted message</h3>
      <div id="html-preview">
        <!-- using an iframe to avoid any styling interference -->
        <iframe id="html-preview-iframe" title="HTML email preview" srcdoc="{{ html }}">
        </iframe>
      </div>

      <h3>Plain-text message</h3>
      <div id="txt-preview">
        <pre>{{ body|safe }}</pre>
      </div>

      <h3>Recipients</h3>
      <p>The email will be sent to {{ users|length }} recipients.</p>
      <div id="users-list">
        <ul>
          {%- for user in users %}
          <li>{{ user.email }}</li>
          {%- endfor %}
        </ul>
      </div>
    </div>
    {%- endif %}

  </div>
{%- endblock %}

{%- block css %}
  {{ super() }}
  {{ webpack['invenio-theme-tuw-compose-outreach.css'] }}
{%- endblock css %}

{%- block javascript %}
  {{ super() }}
  {{ webpack['invenio-theme-tuw-compose-outreach-editor.js'] }}

  <script nonce="{{ csp_nonce() }}">
    /* get the height of the <html> element within the iframe and resize the latter to fit */
    const iframe = document.getElementById("html-preview-iframe");
    iframe.height = "";
    iframe.height = iframe.contentWindow.document.body.parentElement.scrollHeight + 'px';
  </script>
{%- endblock %}