<%
var separator = theme.title_join_string || theme.tab_title_separator
var title = page.title ? [page.title, config.title].join(separator) : config.title
var keywords = page.keywords || config.keywords
if (keywords instanceof Array) {
  keywords = keywords.join(',')
}
var description = page.description || page.excerpt || (is_post() && page.content) || config.description
if (description) {
  description = strip_html(description).substring(0, 200).trim().replace(/\n/g, ' ')
}
var ogImage = page.og_img || page.index_img
var ogConfig = Object.assign({ image: ogImage && url_for(ogImage) }, theme.open_graph)
%>

<head>
  <meta charset="UTF-8">

  <link rel="apple-touch-icon" sizes="76x76" href="<%= url_for(theme.apple_touch_icon) %>">
  <link rel="icon" href="<%= url_for(theme.favicon) %>">
  <% if (theme.canonical.enable) { %>
    <link rel="canonical" href="<%= url_join(config.url, page.canonical_path.replace('index.html', '')) %>"/>
  <% } %>

  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0, shrink-to-fit=no">
  <meta http-equiv="x-ua-compatible" content="ie=edge">
  <% if (theme.force_https) { %>
    <meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">
  <% } %>
  <meta name="theme-color" content="<%= theme.color.navbar_bg_color %>">
  <meta name="author" content="<%= page.author || config.author %>">
  <meta name="keywords" content="<%= keywords %>">
  <% if (theme.open_graph.enable) { %>
    <%- open_graph(ogConfig) %>
  <% } else { %>
    <meta name="description" content="<%= description %>">
  <% } %>
  <% if ((theme.post.meta.views.enable && theme.post.meta.views.source === 'busuanzi')
    || (theme.footer.statistics.enable && theme.footer.statistics.source === 'busuanzi')) { %>
    <meta name="referrer" content="no-referrer-when-downgrade">
  <% } %>
  <% if (theme.custom_head) { %>
    <%- theme.custom_head %>
  <% } %>
  <title><%= title %></title>

  <%- partial('_partials/css.ejs') %>
  <%- export_config() %>
  <%- js_ex(theme.static_prefix.internal_js, 'utils.js') %>
  <%- js_ex(theme.static_prefix.internal_js, 'color-schema.js') %>
  <%- partial('_partials/plugins/analytics.ejs') %>

  <%- inject_point('head') %>
</head>
