#include "hypermail.h"
#include "setup.h"
#include "print.h"
#include "printfile.h"
#include "struct.h"

/*
** printfile - print html header/footer file and fill in values 
**             substituting for magic cookies. Return allocated
**             memory with the header/footer filled in.
**
**      Substitution cookies supported
**
**              %% - '%' character
**              %~ - storage directory
**              %a - Other Archives URL
**              %b - About Archive URL
**              %c - Charset META TAG - Not valid on index pages
**              %e - email addr of message author - Not valid on index pages
**              %f - file name of the HTML document
**              %g - date and time archive generated
**              %h - HMURL
**              %i - Message-id - Not valid on index pages
**              %l - archive label
**              %m - Mailto address
**              %p - PROGNAME
**              %s - Subject of message or Index Title
**              %t - path to top directory ("" if no folders; usually "../",
**                                          sometimes "../../" with folders)
**              %v - VERSION
**              %u - Expanded version link (HMURL,PROGNAME,VERSION)
**              %S - Subject META TAG - Not valid on index pages
**              %A - Author META TAG - Not valid on index pages
**              %D - Date META TAG - Not valid on index pages
**              \n - newline character
**              \t - tab character
**
*/

int printfile(FILE *fp, char *format, char *label, char *subject,
	      char *dir, char *name, char *email, char *message_id,
	      char *charset, char *date, char *filename)
{
    register char *cp;
    register char *aptr;
    char c;
    char *ptr;

    aptr = format;

    while ((c = *aptr++)) {
	if (c == '\\') {
	    switch (*aptr++) {
	    case 'n':		/* Add the \n character */
		putc('\n', fp);
		continue;
	    case 't':		/* Add the \t character */
		putc('\t', fp);
		continue;
	    default:
		break;
	    }			/* end switch */
	}
	else if (c == '%') {
            char nextone = *aptr++;
	    switch (nextone) {
	    case '%':		/* Add the % character */
		putc('%', fp);
		continue;
	    case '~':		/* %~ - storage directory */
		for (cp = dir; *cp; cp++)
		    putc(*cp, fp);
		continue;
	    case 'A':		/* %e - email address of message author */
		if (email && name) {
		    fprintf(fp,
			    "<meta name=\"Author\" content=\"%s (%s)\" />",
			    name, email);
		}
		continue;
	    case 'a':		/* %a - Other Archives URL */
		if (set_archives) {
		    for (cp = set_archives; *cp; cp++)
			putc(*cp, fp);
		}
		continue;
	    case 'B':
	      printf("Warning: the %%B option has been disabled. Use a\n"
		     "style sheet instead. See the INSTALL file for more info.\n");
	      continue;
	    case 'b':		/* %b - About this archive URL */
		if (set_about) {
		    for (cp = set_about; *cp; cp++)
			putc(*cp, fp);
		}
		continue;
	    case 'c':
		if (charset && *charset) {
		    /* only output this if we have a charset */
		    fprintf(fp, "<meta http-equiv=\"Content-Type\""
			    " content=\"text/html; charset=%s\" />\n",
			    charset);
		}
		continue;

	    case 'D':		/* %D - date of message */
		if (date) {
		    fprintf(fp,
			    "<meta name=\"Date\" content=\"%s\" />",
			    date);
		}
		continue;
	    case 'e':		/* %e - email address of message author */
		if (email) {
		    for (cp = email; *cp; cp++)
			putc(*cp, fp);
		}
		continue;
	    case 'f':		/* %f - file name */
		if (filename) {
		    for (cp = filename; *cp; cp++)
			putc(*cp, fp);
		}
		continue;
	    case 'g':		/* %g - date and time archive generated */
		for (cp = getlocaltime(); *cp; cp++)
		    putc(*cp, fp);
		continue;
	    case 'h':		/* %h - Hypermail Resource Center */
		for (cp = HMURL; *cp; cp++)
		    putc(*cp, fp);
		continue;
	    case 'i':		/* %m - Message-ID of message */
		if (message_id) {
		    for (cp = message_id; *cp; cp++)
			putc(*cp, fp);
		}
		continue;
	    case 'l':		/* %l - Archive label  */
		for (cp = label; *cp; cp++)
		    putc(*cp, fp);
		continue;
	    case 'm':		/* %m - mailto */
		if (set_mailto) {
		    for (cp = set_mailto; *cp; cp++)
			putc(*cp, fp);
		}
		continue;
	    case 'p':		/* %p - PROGNAME */
		for (cp = PROGNAME; *cp; cp++)
		    putc(*cp, fp);
		continue;
	    case 's':		/* %s - Subject of message or Index Title */
		for (ptr = cp = convchars(subject, charset); *cp; cp++)
		    putc(*cp, fp);
		free(ptr);
		continue;
	    case 'S':		/* %s - Subject of message or Index Title */
		fprintf(fp, "<meta name=\"Subject\" content=\"%s\" />",
			cp = convchars(subject, charset));
		free(cp);
		continue;
	    case 't':
	      {
		struct emailinfo *ep;
		if(hashnumlookup(0, &ep))
		    fprintf(fp, ep->subdir ? ep->subdir->rel_path_to_top : "");
		continue;
	      }
	    case 'v':		/* %v - VERSION */
		for (cp = VERSION; *cp; cp++)
		    putc(*cp, fp);
		continue;
	    case 'u':		/* %u - Expanded Version link */
		fprintf(fp, "<a href=\"%s\">%s %s</a>",
			HMURL, PROGNAME, VERSION);
		continue;
	    default:
		putc('%', fp);
		putc(nextone, fp);
		continue;
	    }			/* end switch */
	}
	putc(c, fp);
    }				/* end while */

    fflush(fp);
    return (0);
}

/*
** Prints the standard page header 
*/

void print_main_header(FILE *fp, bool index_header, char *label, char *name,
		       char *email, char *subject, char *charset,
		       char *date, char *filename)
{
    char *title;
    char *rp;
    char *rp2;

    /* @@ JK: Don't know what to do with US-ASCII. If there's no charset,
       assume the default one is ISO-8859-1 */
    if (charset && *charset)
      rp = charset;
    else
      rp = "ISO-8859-1";
    fprintf(fp,
	    "<?xml version=\"1.0\" encoding=\"%s\"?>\n"
	    "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\"\n"
	    "    \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n",
	    rp);
    fprintf(fp, "<html xmlns=\"http://www.w3.org/1999/xhtml\" lang=\"%s\">\n", set_language);
    fprintf(fp, "<head>\n");

    if (charset && *charset) {
	/* charset info "as early as possible within the HEAD of the document"
	 */
	fprintf(fp, "<meta http-equiv=\"Content-Type\""
		" content=\"text/html; charset=%s\" />\n", charset);
    }
    fprintf(fp, "<meta name=\"generator\" content=\"%s %s, see %s\" />\n",
                PROGNAME, VERSION, HMURL);

    /* 
     * Strip off any trailing whitespace in TITLE so weblint is happy. 
     */

    /* trio_asprintf(&title, "%s: %s", label, rp = convchars(subject, charset)); */
    rp = convchars(subject, charset);
    
    if (name && date) {
      /* assume that this is the title of a message and not the title of an index */
      rp2 = convchars(name, charset);
      trio_asprintf(&title, "%s %s %s %s %s (%s)", rp,
		    lang[MSG_FROM_TITLE], rp2, lang[MSG_ON_TITLE], date, label);
      free(rp2);
    }
    else
      trio_asprintf(&title, "%s: %s", label, rp);
    free(rp);

    rp = title + (strlen(title) - 1);
    while (isspace(*rp))
	*rp-- = '\0';

    /* 
     * Assure the title meets HTML recommendations of no longer 
     * than 64 characters. Truncate it if needed.
     *
     * JK 13/Aug/2003: This more a style suggestion given in:
     * http://www.w3.org/Provider/Style/TITLE.html
     * As the title is truncated regardless of its contents, it can
     * generate invalid HTML if the cut happens in the middle
     * of an entity. Dom suggested not enforcing this rule of
     * thumb so strictly in this case, so I commented it out.
     */

    /*
      if (strlen(title) > 64)
      *(title+64) = '\0';
      */

    fprintf(fp, "<title>%s</title>\n", title);
    free(title);

    if (name && email)
	fprintf(fp, "<meta name=\"Author\" content=\"%s (%s)\" />\n",name,email);
    fprintf(fp, "<meta name=\"Subject\" content=\"%s\" />\n", rp =
	    convchars(subject, charset));
    free(rp);
    if (date)
	fprintf(fp, "<meta name=\"Date\" content=\"%s\" />\n",date);
    if (use_mailto)
	fprintf(fp, "<link rev=\"made\" href=\"mailto:%s\" />\n", set_mailto);

    /* print the css url according to the type of header */
    if (index_header && set_icss_url && *set_icss_url) {
      fprintf(fp, "<link rel=\"stylesheet\" href=\"%s\" type=\"text/css\" />\n",
              set_icss_url);

    } else if (!index_header && set_mcss_url && *set_mcss_url) {
      fprintf(fp, "<link rel=\"stylesheet\" href=\"%s\" type=\"text/css\" />\n",
              set_mcss_url);

    } else {
      /*
       * if style sheets are not specified, emit a default one.
       */
      /* @@ JK: the old css */
#if 0
      fprintf(fp, "<style type=\"text/css\">\n");
      fprintf(fp, "body {color: black; background: #ffffff}\n");
      fprintf(fp, "h1.center {text-align: center}\n");
      fprintf(fp, "div.center {text-align: center}\n");
      fprintf(fp, ".quotelev1 {color : #990099}\n");
      fprintf(fp, ".quotelev2 {color : #ff7700}\n");
      fprintf(fp, ".quotelev3 {color : #007799}\n");
      fprintf(fp, ".quotelev4 {color : #95c500}\n");
      fprintf(fp, ".headers {background : #e0e0d0}\n");
      fprintf(fp, ".links {background : #f8f8e0}\n");
      fprintf(fp, "</style>\n");
#endif
      /* @@ JK: the new css */
      fprintf (fp, "<style type=\"text/css\">\n");
      
      fprintf (fp,"/*<![CDATA[*/\n");
      fprintf (fp, "/* To be incorporated in the main stylesheet, don't code it in hypermail! */\n");
      fprintf (fp, "body {color: black; background: #ffffff}\n");
      fprintf (fp, "dfn {font-weight: bold;}\n");
      fprintf (fp, "pre { background-color:inherit;}\n");
      fprintf (fp, ".head { border-bottom:1px solid black;}\n");
      fprintf (fp, ".foot { border-top:1px solid black;}\n");
      fprintf (fp, "th {font-style:italic;}\n");
      fprintf (fp, "table { margin-left:2em;}");

      /* JK: This was the WAI rule before */
      /* fprintf (fp, "#body {background-color:#fff;}\n"); */
      fprintf (fp, "map ul {list-style:none;}\n");
      fprintf (fp, "#mid { font-size:0.9em;}\n");
      fprintf (fp, "#received { float:right;}\n");
      fprintf (fp, "address { font-style:inherit ;}\n");
      fprintf (fp, "/*]]>*/\n");
      fprintf(fp, ".quotelev1 {color : #990099}\n");
      fprintf(fp, ".quotelev2 {color : #ff7700}\n");
      fprintf(fp, ".quotelev3 {color : #007799}\n");
      fprintf(fp, ".quotelev4 {color : #95c500}\n");
      fprintf (fp, "</style>\n");
    }

    if (ihtmlheadfile)
      fprintf (fp, "%s", ihtmlheadfile);

    fprintf(fp, "</head>\n");
    fprintf(fp, "<body>\n");
}

/*
** Prints the header for an index page.
*/

void print_msg_header(FILE *fp, char *label, char *subject,
		      char *dir, char *name, char *email, char *msgid,
		      char *charset, time_t date, char *filename)
{
    if (mhtmlheaderfile)
	printfile(fp, mhtmlheaderfile, set_label, subject, set_dir, name, 
		  email, msgid, charset, secs_to_iso_meta(date), filename);
    else {
	print_main_header(fp, FALSE, set_label, name, email, subject,
			  charset, secs_to_iso_meta(date), filename);
    }
}

/*
** Prints the header for the by_date index page.
*/

void print_index_header(FILE *fp, char *label, char *dir, char *subject,
			char *filename)
{
    if (ihtmlheaderfile)
	printfile(fp, ihtmlheaderfile, label, subject, dir, NULL, NULL,
		  NULL, NULL, NULL, filename);
    else {
	/* print the navigation bar to upper levels */
	print_main_header(fp, TRUE, label, NULL, NULL, subject, NULL, NULL, NULL);
	
	fprintf (fp, "<div class=\"head\">\n");
	if (ihtmlnavbar2upfile)
	  fprintf(fp, "<map title=\"%s\" id=\"upper\">\n%s</map>\n", 
		  lang[MSG_NAVBAR2UPPERLEVELS], ihtmlnavbar2upfile);

	fprintf(fp, "<h1>%s %s</h1>\n", label, subject);
    }
}

/*
** Prints the HTML page footer.
*/

void printfooter(FILE *fp, char *htmlfooter, char *label, char *dir,
		 char *subject, char *filename, bool close_div)
{
    printcomment(fp, "trailer", "footer");

    if (htmlfooter)
	printfile(fp, htmlfooter, label, subject,
		  dir, NULL, NULL, NULL, NULL, NULL, filename);
    else {
	fprintf(fp, "<p><small><em>\n");
	fprintf(fp, "%s ", lang[MSG_ARCHIVE_GENERATED_BY]);
	fprintf(fp, "<a href=\"%s\">%s %s</a> \n", HMURL, PROGNAME, VERSION);
	fprintf(fp, ": %s\n", getlocaltime());
	fprintf(fp, "</em></small></p>\n");
    }
    if (close_div)
      fprintf (fp, "</div>\n");
    fprintf(fp, "</body>\n</html>\n");
}

/*
** Prints the HTML last message and last archived date (used in the indexes).
*/

void printlaststats (FILE *fp, long lastdatenum)
{
    fprintf (fp, "<ul>\n");
    fprintf (fp, "<li><dfn><a id=\"end\" name=\"end\">%s</a></dfn>: <em>%s</em></li>\n",
	     lang[MSG_LAST_MESSAGE_DATE], getdatestr(lastdatenum));

    fprintf (fp, "<li><dfn>%s</dfn>: %s</li>\n",  lang[MSG_ARCHIVED_ON], getlocaltime());
    fprintf (fp, "</ul>\n");
}