/* ui-refs.c: browse symbolic refs
 *
 * Copyright (C) 2006 Lars Hjemli
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"
#include "html.h"
#include "ui-shared.h"

static int header;

static int cmp_age(int age1, int age2)
{
	if (age1 != 0 && age2 != 0)
		return age2 - age1;

	if (age1 == 0 && age2 == 0)
		return 0;

	if (age1 == 0)
		return +1;

	return -1;
}

static int cmp_ref_name(const void *a, const void *b)
{
	struct refinfo *r1 = *(struct refinfo **)a;
	struct refinfo *r2 = *(struct refinfo **)b;

	return strcmp(r1->refname, r2->refname);
}

static int cmp_branch_age(const void *a, const void *b)
{
	struct refinfo *r1 = *(struct refinfo **)a;
	struct refinfo *r2 = *(struct refinfo **)b;

	return cmp_age(r1->commit->committer_date, r2->commit->committer_date);
}

static int get_ref_age(struct refinfo *ref)
{
	if (!ref->object)
		return 0;
	switch (ref->object->type) {
	case OBJ_TAG:
		return ref->tag ? ref->tag->tagger_date : 0;
	case OBJ_COMMIT:
		return ref->commit ? ref->commit->committer_date : 0;
	}
	return 0;
}

static int cmp_tag_age(const void *a, const void *b)
{
	struct refinfo *r1 = *(struct refinfo **)a;
	struct refinfo *r2 = *(struct refinfo **)b;

	return cmp_age(get_ref_age(r1), get_ref_age(r2));
}

static int print_branch(struct refinfo *ref)
{
	struct commitinfo *info = ref->commit;
	char *name = (char *)ref->refname;

	if (!info)
		return 1;
	html("<tr><td>");
	cgit_log_link(name, NULL, NULL, name, NULL, NULL, 0, NULL, NULL,
		      ctx.qry.showmsg);
	html("</td><td>");

	if (ref->object->type == OBJ_COMMIT) {
		cgit_commit_link(info->subject, NULL, NULL, name, NULL, NULL, 0);
		html("</td><td>");
		html_txt(info->author);
		html("</td><td colspan='2'>");
		cgit_print_age(info->commit->date, -1, NULL);
	} else {
		html("</td><td></td><td>");
		cgit_object_link(ref->object);
	}
	html("</td></tr>\n");
	return 0;
}

static void print_tag_header()
{
	html("<tr class='nohover'><th class='left'>Tag</th>"
	     "<th class='left'>Download</th>"
	     "<th class='left'>Author</th>"
	     "<th class='left' colspan='2'>Age</th></tr>\n");
	header = 1;
}

static void print_tag_downloads(const struct cgit_repo *repo, const char *ref)
{
	const struct cgit_snapshot_format* f;
    	char *filename;
	const char *basename;
	int free_ref = 0;

	if (!ref || strlen(ref) < 2)
		return;

	basename = cgit_repobasename(repo->url);
	if (prefixcmp(ref, basename) != 0) {
		if ((ref[0] == 'v' || ref[0] == 'V') && isdigit(ref[1]))
			ref++;
		if (isdigit(ref[0])) {
			ref = xstrdup(fmt("%s-%s", basename, ref));
			free_ref = 1;
		}
	}

	for (f = cgit_snapshot_formats; f->suffix; f++) {
		if (!(repo->snapshots & f->bit))
			continue;
		filename = fmt("%s%s", ref, f->suffix);
		cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
		html("&nbsp;&nbsp;");
	}

	if (free_ref)
		free((char *)ref);
}
static int print_tag(struct refinfo *ref)
{
	struct tag *tag;
	struct taginfo *info;
	char *name = (char *)ref-<style>pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
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.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
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.highlight .gt { color: #aa0000 } /* Generic.Traceback */
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.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
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.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
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.highlight .nb { color: #003388 } /* Name.Builtin */
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.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.h