/* ui-commit.c: generate commit view
 *
 * 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"
#include "ui-diff.h"
#include "ui-log.h"

void cgit_print_commit(char *hex, const char *prefix)
{
	struct commit *commit, *parent;
	struct commitinfo *info, *parent_info;
	struct commit_list *p;
	struct strbuf notes = STRBUF_INIT;
	unsigned char sha1[20];
	char *tmp, *tmp2;
	int parents = 0;

	if (!hex)
		hex = ctx.qry.head;

	if (get_sha1(hex, sha1)) {
		cgit_print_error(fmt("Bad object id: %s", hex));
		return;
	}
	commit = lookup_commit_reference(sha1);
	if (!commit) {
		cgit_print_error(fmt("Bad commit reference: %s", hex));
		return;
	}
	info = cgit_parse_commit(commit);

	format_note(NULL, sha1, &notes, PAGE_ENCODING, 0);

	load_ref_decorations(DECORATE_FULL_REFS);

	html("<table summary='commit info' class='commit-info'>\n");
	html("<tr><th>author</th><td>");
	html_txt(info->author);
	if (!ctx.cfg.noplainemail) {
		html(" ");
		html_txt(info->author_email);
	}
	html("</td><td class='right'>");
	cgit_print_date(info->author_date, FMT_LONGDATE, ctx.cfg.local_time);
	html("</td></tr>\n");
	html("<tr><th>committer</th><td>");
	html_txt(info->committer);
	if (!ctx.cfg.noplainemail) {
		html(" ");
		html_txt(info->committer_email);
	}
	html("</td><td class='right'>");
	cgit_print_date(info->committer_date, FMT_LONGDATE, ctx.cfg.local_time);
	html("</td></tr>\n");
	html("<tr><th>commit</th><td colspan='2' class='sha1'>");
	tmp = sha1_to_hex(commit->object.sha1);
	cgit_commit_link(tmp, NULL, NULL, ctx.qry.head, tmp, prefix, 0);
	html(" (");
	cgit_patch_link("patch", NULL, NULL, NULL, tmp, prefix);
	html(") (");
	if ((ctx.qry.ssdiff && !ctx.cfg.ssdiff) || (!ctx.qry.ssdiff && ctx.cfg.ssdiff))
		cgit_commit_link("unidiff", NULL, NULL, ctx.qry.head, tmp, prefix, 1);
	else
		cgit_commit_link("side-by-side diff", NULL, NULL, ctx.qry.head, tmp, prefix, 1);
	html(")</td></tr>\n");
	html("<tr><th>tree</th><td colspan='2' class='sha1'>");
	tmp = xstrdup(hex);
	cgit_tree_link(sha1_to_hex(commit->tree->object.sha1), NULL, NULL,
		       ctx.qry.head, tmp, NULL);
	if (prefix) {
		html(" /");
		cgit_tree_link(prefix, NULL, NULL, ctx.qry.head, tmp, prefix);
	}
	html("</td></tr>\n");
      	for (p = commit->parents; p ; p = p->next) {
		parent = lookup_commit_reference(p->item->object.sha1);
		if (!parent) {
			html("<tr><td colspan='3'>");
			cgit_print_error("Error reading parent commit");
			html("</td></tr>");
			continue;
		}
		html("<tr><th>parent</th>"
		     "<td colspan='2' class='sha1'>");
		tmp = tmp2 = sha1_to_hex(p->item->object.sha1);
		if (ctx.repo->enable_subject_links) {
			parent_info = cgit_parse_commit(parent);
			tmp2 = parent_info->subject;
		}
		cgit_commit_link(tmp2, NULL, NULL, ctx.qry.head, tmp, prefix, 0);
		html(" (");
		cgit_diff_link("diff", NULL, NULL, ctx.qry.head, hex,
			       sha1_to_hex(p->item-><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; }
.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.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 */