(require 'org)

(setq org-html-style-default "")

(setq org-html-postamble
      (let ((article-name (getenv "FILE_NAME"))
            (last-commit (getenv "LAST_COMMIT")))

        (concat
         (format
          "<p><a href=\"https://gitea.riouxs.co/andrew.rioux/website/src/commit/%s/%s\">View source</a></p>"
          last-commit
          (substring article-name 2))
         (format
          "<p><a href=\"/%s\">View PDF</a></p>"
          (string-replace "org" "pdf" (substring article-name 2))))))

(setq org-html-head-extra
      (let ((last-commit-date  (getenv "LAST_COMMIT_DATE"))
            (first-commit-date (getenv "FIRST_COMMIT_DATE"))
            (article-name      (getenv "FILE_NAME")))

        (concat
         "<link rel=\"stylesheet\" type=\"text/css\" href=\"/resources/basestyles.css\" />"
         (format "<meta name=\"DC.date\" content=\"%s\" />" first-commit-date)
         (format "<meta name=\"DC.modified\" content=\"%s\" />" last-commit-date)
         "<meta name=\"DC.creator\" content=\"Andrew Rioux\" />"
         "<meta name=\"DC.type\" content=\"blogPost\" />"
         (format
          "<meta name=\"DC.relation\" content=\"https://andrew.riouxs.co/%s\" />"
          (string-replace "org" "pdf" (substring article-name 2))))))

(setq org-html-preamble
      (let ((last-commit-date (getenv "LAST_COMMIT_DATE"))
            (first-commit-date (getenv "FIRST_COMMIT_DATE")))

        (if (string= last-commit-date first-commit-date)
            (concat
             "<p class=\"author\">Author: Andrew Rioux</p>"
                                        ; "<meta name=\"citation_title\" content=\"%t\" />"
             "<meta name=\"DC.title\" content=\"%t\" />"
             "<p class=\"date\">Publish date: "
             last-commit-date
             "</p>")

          (concat
           "<p class=\"author\">Author: Andrew Rioux</p>"
                                        ; "<meta name=\"citation_title\" content=\"%t\" />"
           "<meta name=\"DC.title\" content=\"%t\" />"
           "<p class=\"date\">Initial publish date: "
           first-commit-date
           "</p><p class=\"date\">Last modify date: "
           last-commit-date
           "</p>")
          )))