- var pageTitle
- if (is_archive()) pageTitle = _p('page.archives')
- else if (is_tag()) pageTitle = _p('page.tag') + ': ' + page.tag
- else if (is_category()) pageTitle = _p('page.category') + ': ' + page.category
- else if (is_month()) pageTitle += ': ' + page.month + '/' + page.year
- else if (is_year()) pageTitle += ': ' + page.year
- else if (is_current('/404.html', [strict])) pageTitle = _p('error404.error_title')
- else pageTitle = page.title || config.title || ''

- var isSubtitle = config.subtitle ? ' - ' + config.subtitle : ''
- var tabTitle = is_home() || !pageTitle ? config.title + isSubtitle : pageTitle + ' | ' + config.title

- var pageDescription = page_description()
- var pageKeywords
- if (page.keywords) pageKeywords = Array.isArray(page.keywords) ? (page.keywords).join(',') :  ([]).join(',') || page.keywords
- else if (page.tags && page.tags.length) pageKeywords = page.tags.data.map(function(tag) {return tag.name;}).join(',')
- else pageKeywords = Array.isArray(config.keywords) ? (config.keywords).join(','):  ([]).join(',') || config.keywords
- var pageAuthor = config.email ? config.author + ',' + config.email : config.author
- var pageCopyright = config.copyright || config.author

meta(charset='UTF-8')
meta(http-equiv="X-UA-Compatible" content="IE=edge")
meta(name="viewport" content="width=device-width,initial-scale=1")
title= tabTitle
meta(name="description" content!=pageDescription)
if pageKeywords
  meta(name="keywords" content=pageKeywords)
meta(name="author" content=pageAuthor)
meta(name="copyright" content=pageCopyright)
meta(name ="format-detection" content="telephone=no")
!=favicon_tag(theme.favicon || config.favicon)
link(rel="canonical" href=urlNoIndex())

if theme.disable_baidu_transformation
  meta(http-equiv="Cache-Control" content="no-transform")
  meta(http-equiv="Cache-Control" content="no-siteapp")

//- 預解析
!=partial('includes/head/preconnect', {}, {cache:theme.fragment_cache})

//- 網站驗證
!=partial('includes/head/site_verification', {}, {cache:theme.fragment_cache})

//- Open_Graph
include ./head/Open_Graph.pug

if theme.facebook_comments.app_id
  meta(property="fb:app_id" content=theme.facebook_comments.app_id )
if theme.facebook_comments.user_id
  meta(property="fb:admins" content=theme.facebook_comments.user_id)

//- PWA
if (theme.pwa && theme.pwa.enable)
  !=partial('includes/head/pwa', {}, {cache:theme.fragment_cache})

if theme.darkmode.enable
  !=partial('includes/head/darkmode', {}, {cache:theme.fragment_cache})

//- main css
link(rel='stylesheet', href=url_for(theme.CDN.main_css))
link(rel='stylesheet', href=url_for(theme.CDN.fontawesome))

if theme.fancybox
  link(rel='stylesheet', href=url_for(theme.CDN.fancybox_css))

if (theme.snackbar && theme.snackbar.enable)
  link(rel='stylesheet', href=url_for(theme.CDN.snackbar_css))

if theme.algolia_search.enable
  link(rel='stylesheet' href=url_for(theme.CDN.algolia_search_css))
  script(src=url_for(theme.CDN.algolia_search) defer)

//- google_adsense
!=partial('includes/head/google_adsense', {}, {cache:theme.fragment_cache})

//- analytics
!=partial('includes/head/analytics', {}, {cache:theme.fragment_cache})

//- font
if theme.blog_title_font.font_link
  link(rel='stylesheet' href=url_for(theme.blog_title_font.font_link))

//- global config
!=partial('includes/head/config', {}, {cache:theme.fragment_cache})

include ./head/config_site.pug
include ./head/noscript.pug

!=fragment_cache('injectHead', function(){return injectHtml(theme.inject.head)})