#+TITLE:       sdp header extract
#+AUTHOR:      Ralph Amissah
#+EMAIL:       [[mailto:ralph.amissah@gmail.com][ralph.amissah@gmail.com]]
#+DESCRIPTION: documents - structuring, publishing in multiple formats & search
#+KEYWORDS
#+LANGUAGE:    en
#+STARTUP:     indent content
#+OPTIONS:     H:3 num:nil toc:t \n:nil @:t ::t |:t ^:nil _:nil -:t f:t *:t <:t
#+OPTIONS:     TeX:t LaTeX:t skip:nil d:nil todo:t pri:nil tags:not-in-toc
#+OPTIONS:     author:nil email:nil creator:nil timestamp:nil
#+PROPERTY:    header-args :padline no :exports code :noweb yes
#+EXPORT_SELECT_TAGS:  export
#+EXPORT_EXCLUDE_TAGS: noexport
#+FILETAGS:            :sdp:rel:meta:
#+TAGS: assert(a) class(c) debug(d) mixin(m) sdp(s) tangle(T) template(t) WEB(W) noexport(n)

[[./sdp.org][sdp]]  [[./][org/]]
* 0. header extract (native & sdlang) to Struct    :module:sdp:meta_conf_make_meta:
** module template

#+BEGIN_SRC d :tangle ../src/sdp/meta/conf_make_meta.d
/++
  extract native/orig header return associative array<BR>

  the header is passed as text (lopped off top of a sisu markup file until the
  required first heading ^A~), determine whether is a native header or sdlang one
  with a regex check if whether it contains the "native header" required tag/field
  @title: then process accordingly as a "native header" or "sdlang header"
  converting the metadata and make instructions to a common json format used by
  program internally. Moved to associative array.
+/
module sdp.meta.conf_make_meta;
static template docHeaderMakeAndMetaTupExtractAndConvertToStruct() {
  import
    std.exception,
    std.regex,
    std.stdio,
    std.traits,
    std.typecons,
    std.utf,
    std.conv : to;
  import sdlang;
  import
    sdp.meta.conf_make_meta_sdlang,
    sdp.meta.rgx;
  mixin SiSUrgxInit;
  mixin SiSUextractSDLang;
  static auto rgx = Rgx();
  auto docHeaderMakeAndMetaTupExtractAndConvertToStruct(CCm, Src)(
    CCm     conf_composite_make,
    Src     header_src,
  ) {
    auto header_sdlang_tag = (!(header_src.match(rgx.native_header_meta_title)))
    ? extractSDL().docHeaderSDLtagGet(header_src) // sdlang.ast.Tag
    : null;
    auto header_make_and_meta_struct = extractSDL().docSDLtoStruct(conf_composite_make, header_sdlang_tag);
    return header_make_and_meta_struct;
  }
}
#+END_SRC

* A. module sdlang                      :module:sdp:meta_conf_make_meta_sdlang:
** 0. module template

#+BEGIN_SRC d :tangle ../src/sdp/meta/conf_make_meta_sdlang.d
/++
  sdlang headers<BR>
  extract sdlang header return sdlang
+/
module sdp.meta.conf_make_meta_sdlang;
static template SiSUextractSDLang() {
  import
    std.exception,
    std.regex,
    std.stdio,
    std.string,
    std.traits,
    std.typecons,
    std.utf,
    std.conv : to;
  import
    sdp.meta.defaults,
    sdp.meta.rgx;
  struct extractSDL {
    mixin SiSUregisters;
    mixin SiSUrgxInit;
    static auto rgx = Rgx();
    <<meta_conf_make_meta_sdl>>
  }
}
#+END_SRC

** 1. sdlang header _extract root Tag_                       :sdlang:root:tag:

#+name: meta_conf_make_meta_sdl
#+BEGIN_SRC d
private auto docHeaderSDLtagGet(Hs)(Hs src_header) {
  debug(asserts){
    static assert(is(typeof(src_header) == char[]));
  }
  char[][] source_header_arr =
    (cast(char[]) src_header).split(rgx.newline_eol_delimiter);
  char[] _src_header;
  foreach(header_line; source_header_arr) {
    if (!match(header_line, rgx.comments)) {
      _src_header ~= header_line ~ "\n";
    }
  }
  scope(failure) {
    stderr.writefln(
      "%s\n%s\n%s:%s failed here:\n  _src_header: %s",
      __MODULE__, __FUNCTION__,
      __FILE__, __LINE__,
      _src_header,
    );
  }
  Tag sdl_root_header;
  try {
    sdl_root_header = parseSource(_src_header.to!string);
  }
  catch(ParseException e) {
    stderr.writeln("SDLang problem with this document header:");
    stderr.writeln(_src_header);
    // Error messages of the form:
    // myFile.sdl(5:28): Error: Invalid integer suffix.
    stderr.writeln(e.msg);
  }
  debug(sdlang) {
    writeln("header SDL:");
    writeln(__LINE__, ": ",  sdl_root_header.toSDLDocument());
    writeln(__LINE__, ": ",  sdl_root_header.maybe.namespaces);
    writeln("header make sdlang: ", sdl_root_header.toSDLDocument());
    writeln(__LINE__, ": ", sdl_root_header.getTagValues("title"));
    writeln(__LINE__, ": ", sdl_root_header.getTagValues("creator"));
    Tag creator = sdl_root_header.getTag("creator");
    if (creator !is null) {
      if ("author" in creator.maybe.tags) {
        writeln(__LINE__, ": ", creator.getTagValues("author"));
      } else if ("author" in creator.maybe.attributes) {
        writeln(__LINE__, ": ", creator.maybe.attributes["author"][0].value);
      }
    }
  }
  return sdl_root_header; // sdlang.ast.Tag
}
#+END_SRC

** 2a. _sdlang to struct_

#+name: meta_conf_make_meta_sdl
#+BEGIN_SRC d
private auto docSDLtoStruct(C,Tag)(C _conf_composite, Tag header_sdlang) {
  mixin SiSUregisters;
  /+ make +/
  if ("make" in header_sdlang.maybe.tags) {
    _conf_composite.make_str.bold              = _conf_composite.make.bold              = extractSDLangTabOrAttrib(header_sdlang, "make", "bold");
    _conf_composite.make_str.breaks            = _conf_composite.make.breaks            = extractSDLangTabOrAttrib(header_sdlang, "make", "breaks");
    _conf_composite.make_str.cover_image       = _conf_composite.make.cover_image       = extractSDLangTabOrAttrib(header_sdlang, "make", "cover_image");
    _conf_composite.make_str.css               = _conf_composite.make.css               = extractSDLangTabOrAttrib(header_sdlang, "make", "css");
    _conf_composite.make_str.emphasis          = _conf_composite.make.emphasis          = extractSDLangTabOrAttrib(header_sdlang, "make", "emphasis");
    _conf_composite.make_str.footer            = _conf_composite.make.footer            = extractSDLangTabOrAttrib(header_sdlang, "make", "footer");
    _conf_composite.make_str.headings          = _conf_composite.make.headings          = extractSDLangTabOrAttrib(header_sdlang, "make", "headings");
    _conf_composite.make_str.home_button_image = _conf_composite.make.home_button_image = extractSDLangTabOrAttrib(header_sdlang, "make", "home_button_image");
    _conf_composite.make_str.home_button_text  = _conf_composite.make.home_button_text  = extractSDLangTabOrAttrib(header_sdlang, "make", "home_button_text");
    _conf_composite.make_str.italics           = _conf_composite.make.italics           = extractSDLangTabOrAttrib(header_sdlang, "make", "italics");
    _conf_composite.make_str.num_top           = _conf_composite.make.num_top           = extractSDLangTabOrAttrib(header_sdlang, "make", "num_top");
    _conf_composite.make_str.num_depth         = _conf_composite.make.num_depth         = extractSDLangTabOrAttrib(header_sdlang, "make", "num_depth");
    _conf_composite.make_str.substitute        = _conf_composite.make.substitute        = extractSDLangTabOrAttrib(header_sdlang, "make", "substitute");
    _conf_composite.make_str.texpdf_font       = _conf_composite.make.texpdf_font       = extractSDLangTabOrAttrib(header_sdlang, "make", "texpdf_font");
  }
  /+ conf +/
  if ("webserv" in header_sdlang.maybe.tags) {
    _conf_composite.conf.webserv_url_root        = extractSDLangTabOrAttrib(header_sdlang, "webserv", "url_root");
    _conf_composite.conf.webserv_path            = extractSDLangTabOrAttrib(header_sdlang, "webserv", "path");
    _conf_composite.conf.webserv_images          = extractSDLangTabOrAttrib(header_sdlang, "webserv", "images");
    _conf_composite.conf.webserv_cgi             = extractSDLangTabOrAttrib(header_sdlang, "webserv", "cgi");
    _conf_composite.conf.webserv_cgi_host        = extractSDLangTabOrAttrib(header_sdlang, "webserv", "cgi_host");
    _conf_composite.conf.webserv_cgi_host_path   = extractSDLangTabOrAttrib(header_sdlang, "webserv", "cgi_host_path");
    _conf_composite.conf.webserv_cgi_port        = extractSDLangTabOrAttrib(header_sdlang, "webserv", "cgi_port");
    _conf_composite.conf.webserv_cgi_user        = extractSDLangTabOrAttrib(header_sdlang, "webserv", "cgi_user");
    _conf_composite.conf.webserv_cgi_file_links  = extractSDLangTabOrAttrib(header_sdlang, "webserv", "cgi_file_links");
  }
  if ("processing" in header_sdlang.maybe.tags) {
    _conf_composite.conf.processing_path         = extractSDLangTabOrAttrib(header_sdlang, "webserv", "processing_path");
    _conf_composite.conf.processing_dir          = extractSDLangTabOrAttrib(header_sdlang, "webserv", "processing_dir");
    _conf_composite.conf.processing_concord_max  = extractSDLangTabOrAttrib(header_sdlang, "webserv", "processing_concord_max");
  }
  if("flag" in header_sdlang.maybe.tags) {
    _conf_composite.conf.flag_act0               = extractSDLangTabOrAttrib(header_sdlang, "flag", "act0");
    _conf_composite.conf.flag_act1               = extractSDLangTabOrAttrib(header_sdlang, "flag", "act1");
    _conf_composite.conf.flag_act2               = extractSDLangTabOrAttrib(header_sdlang, "flag", "act2");
    _conf_composite.conf.flag_act3               = extractSDLangTabOrAttrib(header_sdlang, "flag", "act3");
    _conf_composite.conf.flag_act4               = extractSDLangTabOrAttrib(header_sdlang, "flag", "act4");
    _conf_composite.conf.flag_act5               = extractSDLangTabOrAttrib(header_sdlang, "flag", "act5");
    _conf_composite.conf.flag_act6               = extractSDLangTabOrAttrib(header_sdlang, "flag", "act6");
    _conf_composite.conf.flag_act7               = extractSDLangTabOrAttrib(header_sdlang, "flag", "act7");
    _conf_composite.conf.flag_act8               = extractSDLangTabOrAttrib(header_sdlang, "flag", "act8");
    _conf_composite.conf.flag_act9               = extractSDLangTabOrAttrib(header_sdlang, "flag", "act9");
  }
  if ("default" in header_sdlang.maybe.tags) {
    _conf_composite.conf.default_papersize       = extractSDLangTabOrAttrib(header_sdlang, "default", "papersize");
    _conf_composite.conf.default_text_wrap       = extractSDLangTabOrAttrib(header_sdlang, "default", "text_wrap");
    _conf_composite.conf.default_emphasis        = extractSDLangTabOrAttrib(header_sdlang, "default", "emphasis");
    _conf_composite.conf.default_language        = extractSDLangTabOrAttrib(header_sdlang, "default", "language");
    _conf_composite.conf.default_digest          = extractSDLangTabOrAttrib(header_sdlang, "default", "digest");
  }
  if ("search" in header_sdlang.maybe.tags) {
    _conf_composite.conf.search_flag             = extractSDLangTabOrAttrib(header_sdlang, "search", "flag");
    _conf_composite.conf.search_action           = extractSDLangTabOrAttrib(header_sdlang, "search", "action");
    _conf_composite.conf.search_db               = extractSDLangTabOrAttrib(header_sdlang, "search", "db");
    _conf_composite.conf.search_title            = extractSDLangTabOrAttrib(header_sdlang, "search", "title");
  }
  /+ meta +/
  if ("classify" in header_sdlang.maybe.tags) {
    _conf_composite.meta.classify_dewey          = extractSDLangTabOrAttrib(header_sdlang, "classify", "dewey");
    _conf_composite.meta.classify_keywords       = extractSDLangTabOrAttrib(header_sdlang, "classify", "keywords");
    _conf_composite.meta.classify_loc            = extractSDLangTabOrAttrib(header_sdlang, "classify", "loc");
    _conf_composite.meta.classify_subject        = extractSDLangTabOrAttrib(header_sdlang, "classify", "subject");
    _conf_composite.meta.classify_topic_register = extractSDLangTabOrAttrib(header_sdlang, "classify", "topic_register");
  }
  if ("date" in header_sdlang.maybe.tags) {
    _conf_composite.meta.date_added_to_site      = extractSDLangTabOrAttrib(header_sdlang, "date", "added_to_site");
    _conf_composite.meta.date_available          = extractSDLangTabOrAttrib(header_sdlang, "date", "available");
    _conf_composite.meta.date_created            = extractSDLangTabOrAttrib(header_sdlang, "date", "created");
    _conf_composite.meta.date_issued             = extractSDLangTabOrAttrib(header_sdlang, "date", "issued");
    _conf_composite.meta.date_modified           = extractSDLangTabOrAttrib(header_sdlang, "date", "modified");
    _conf_composite.meta.date_published          = extractSDLangTabOrAttrib(header_sdlang, "date", "published");
    _conf_composite.meta.date_valid              = extractSDLangTabOrAttrib(header_sdlang, "date", "valid");
  }
  if("identifier" in header_sdlang.maybe.tags) {
    _conf_composite.meta.identifier_isbn         = extractSDLangTabOrAttrib(header_sdlang, "identifier", "isbn");
    _conf_composite.meta.identifier_oclc         = extractSDLangTabOrAttrib(header_sdlang, "identifier", "oclc");
    _conf_composite.meta.identifier_pg           = extractSDLangTabOrAttrib(header_sdlang, "identifier", "pg");
  }
  if ("links" in header_sdlang.maybe.tags) {
    // _conf_composite.meta.links                   = extractSDLangTabOrAttrib(header_sdlang, "links", "");
  }
  if ("notes" in header_sdlang.maybe.tags) {
    _conf_composite.meta.notes_abstract          = extractSDLangTabOrAttrib(header_sdlang, "notes", "abstract");
    _conf_composite.meta.notes_description       = extractSDLangTabOrAttrib(header_sdlang, "notes", "description");
  }
  if ("original" in header_sdlang.maybe.tags) {
    _conf_composite.meta.original_language       = extractSDLangTabOrAttrib(header_sdlang, "original", "language");
    _conf_composite.meta.original_language_char  = extractSDLangTabOrAttrib(header_sdlang, "original", "language_char");
    _conf_composite.meta.original_source         = extractSDLangTabOrAttrib(header_sdlang, "original", "source");
    _conf_composite.meta.original_title          = extractSDLangTabOrAttrib(header_sdlang, "original", "title");
  }
  if ("publisher" in header_sdlang.maybe.tags) {
    // _conf_composite.meta.publisher               = extractSDLangTabOrAttrib(header_sdlang, "publisher", "");
  }
  if ("rights" in header_sdlang.maybe.tags) {
    _conf_composite.meta.rights_copyright               = extractSDLangTabOrAttrib(header_sdlang, "rights", "copyright");
    _conf_composite.meta.rights_copyright_text          = extractSDLangTabOrAttrib(header_sdlang, "rights", "copyright_text");
    _conf_composite.meta.rights_copyright_audio         = extractSDLangTabOrAttrib(header_sdlang, "rights", "copyright_audio");
    _conf_composite.meta.rights_copyright_cover         = extractSDLangTabOrAttrib(header_sdlang, "rights", "copyright_cover");
    _conf_composite.meta.rights_copyright_illustrations = extractSDLangTabOrAttrib(header_sdlang, "rights", "copyright_illustrations");
    _conf_composite.meta.rights_copyright_photographs   = extractSDLangTabOrAttrib(header_sdlang, "rights", "copyright_photographs");
    _conf_composite.meta.rights_copyright_translation   = extractSDLangTabOrAttrib(header_sdlang, "rights", "copyright_translation");
    _conf_composite.meta.rights_copyright_video         = extractSDLangTabOrAttrib(header_sdlang, "rights", "copyright_video");
    _conf_composite.meta.rights_license                 = extractSDLangTabOrAttrib(header_sdlang, "rights", "license");
  }
  if (_conf_composite.meta.creator_author.empty) {
    if ("creator" in header_sdlang.maybe.tags) {
      _conf_composite.meta.creator_author          = extractSDLangTabOrAttrib(header_sdlang, "creator", "author");
      _conf_composite.meta.creator_author_email    = extractSDLangTabOrAttrib(header_sdlang, "creator", "author_email");
      _conf_composite.meta.creator_illustrator     = extractSDLangTabOrAttrib(header_sdlang, "creator", "illustrator");
      _conf_composite.meta.creator_translator      = extractSDLangTabOrAttrib(header_sdlang, "creator", "translator");
    }
    // dochead_meta["creator"]["author_raw"] = dochead_meta["creator"]["author"];
    string[] authors_arr;
    auto authors_raw_arr = _conf_composite.meta.creator_author.split(rgx.arr_delimiter);
    foreach (author_raw; authors_raw_arr) {
      authors_arr ~= author_raw.replace(rgx.raw_author_munge, "$2 $1");
    }
    _conf_composite.meta.creator_author = join(authors_arr, ", ").chomp.chomp;
  }
  if (_conf_composite.meta.title_main.empty) {
    if ("title" in header_sdlang.maybe.tags) {
      _conf_composite.meta.title_edition           = extractSDLangTabOrAttrib(header_sdlang, "title", "edition");
      _conf_composite.meta.title_language          = extractSDLangTabOrAttrib(header_sdlang, "title", "language");
      _conf_composite.meta.title_main              = extractSDLangTabOrAttrib(header_sdlang, "title", "main");
      _conf_composite.meta.title_note              = extractSDLangTabOrAttrib(header_sdlang, "title", "note");
      _conf_composite.meta.title_sub               = extractSDLangTabOrAttrib(header_sdlang, "title", "sub");
      _conf_composite.meta.title_subtitle          = extractSDLangTabOrAttrib(header_sdlang, "title", "subtitle");
    }
    if (_conf_composite.meta.title_main.empty) {
      Tag _maintag = header_sdlang.getTag("title");
      if (_maintag !is null) {
        if ("main" in _maintag.maybe.tags) {
          _conf_composite.meta.title_main =
            to!string(_maintag.getTagValues("main"));
        } else if ("main" !in _maintag.maybe.attributes) {
          writeln(_maintag.values[0]); // document title
          _conf_composite.meta.title_main =
            (_maintag.values[0]).to!string; // test that this exists
        }
      }
    }
    if ((!(_conf_composite.meta.title_subtitle.empty))
    && (_conf_composite.meta.title_sub.empty)) {
      _conf_composite.meta.title_sub = _conf_composite.meta.title_subtitle;
    }
    if (_conf_composite.meta.title_sub.empty) {
      _conf_composite.meta.title_full = _conf_composite.meta.title_main;
    } else {
      _conf_composite.meta.title_full = format(
        "%s - %s",
        _conf_composite.meta.title_main,
        _conf_composite.meta.title_sub,
      );
    }
  }
  return _conf_composite;
}
#+END_SRC

* C. module conf files make composite
** TODO 0. module template

#+BEGIN_SRC d :tangle ../src/sdp/meta/conf_make_meta_composite.d
/++
  return composite make from config files
+/
module sdp.meta.conf_make_meta_composite;
<<meta_conf_make_meta_composite_struct>>
template confFilesSDLtoStruct() {
  import
    std.exception,
    std.regex,
    std.stdio,
    std.string,
    std.traits,
    std.typecons,
    std.utf,
    std.conv : to;
  import
    sdp.meta.defaults,
    sdp.meta.rgx;
  <<meta_conf_make_meta_composite>>
}
#+END_SRC

** module template

#+name: meta_conf_make_meta_composite
#+BEGIN_SRC d
auto confFilesSDLtoStruct(S,L)(
  S sdl_root_config_share,
  L sdl_root_config_local,
){
  mixin SiSUregisters;
  ConfCompositePlus _conf_composite;
  foreach (conf_sdlang; [sdl_root_config_share, sdl_root_config_local]) {
    if ("make" in conf_sdlang.maybe.tags) {
       _conf_composite.make_str.bold              = _conf_composite.make.bold              = extractSDLangTabOrAttrib(conf_sdlang, "make", "bold");
       _conf_composite.make_str.breaks            = _conf_composite.make.breaks            = extractSDLangTabOrAttrib(conf_sdlang, "make", "breaks");
       _conf_composite.make_str.cover_image       = _conf_composite.make.cover_image       = extractSDLangTabOrAttrib(conf_sdlang, "make", "cover_image");
       _conf_composite.make_str.css               = _conf_composite.make.css               = extractSDLangTabOrAttrib(conf_sdlang, "make", "css");
       _conf_composite.make_str.emphasis          = _conf_composite.make.emphasis          = extractSDLangTabOrAttrib(conf_sdlang, "make", "emphasis");
       _conf_composite.make_str.footer            = _conf_composite.make.footer            = extractSDLangTabOrAttrib(conf_sdlang, "make", "footer");
       _conf_composite.make_str.headings          = _conf_composite.make.headings          = extractSDLangTabOrAttrib(conf_sdlang, "make", "headings");
       _conf_composite.make_str.home_button_image = _conf_composite.make.home_button_image = extractSDLangTabOrAttrib(conf_sdlang, "make", "home_button_image");
       _conf_composite.make_str.home_button_text  = _conf_composite.make.home_button_text  = extractSDLangTabOrAttrib(conf_sdlang, "make", "home_button_text");
       _conf_composite.make_str.italics           = _conf_composite.make.italics           = extractSDLangTabOrAttrib(conf_sdlang, "make", "italics");
       _conf_composite.make_str.num_top           = _conf_composite.make.num_top           = extractSDLangTabOrAttrib(conf_sdlang, "make", "num_top");
       _conf_composite.make_str.num_depth         = _conf_composite.make.num_depth         = extractSDLangTabOrAttrib(conf_sdlang, "make", "num_depth");
       _conf_composite.make_str.substitute        = _conf_composite.make.substitute        = extractSDLangTabOrAttrib(conf_sdlang, "make", "substitute");
       _conf_composite.make_str.texpdf_font       = _conf_composite.make.texpdf_font       = extractSDLangTabOrAttrib(conf_sdlang, "make", "texpdf_font");
    }
  }
  return _conf_composite;
}
#+END_SRC

** initialize / imports

#+name: imports
#+BEGIN_SRC d
import sdp.meta;
import std.array;
#+END_SRC