#include "cgit.h"

void cgit_print_commit(const char *hex)
{
	struct commit *commit;
	struct commitinfo *info;
	struct commit_list *p;
	unsigned long size;
	char type[20];
	char *buf;

	unsigned char sha1[20];

	if (get_sha1(hex, sha1)) {
		cgit_print_error(fmt("Bad object id: %s", hex));
		return;
	}

	buf = read_sha1_file(sha1, type, &size);
	if (!buf) {
		cgit_print_error(fmt("Bad object reference: %s", hex));
		return;
	}

	commit = lookup_commit(sha1);
	if (!commit) {
		cgit_print_error(fmt("Bad commit reference: %s", hex));
		return;
	}

	commit->buffer = buf;
	if (parse_commit_buffer(commit, buf, size)) {
		cgit_print_error(fmt("Malformed commit buffer: %s", hex));
		return;
	}

	info = cgit_parse_commit(commit);

	html("<table class='commit-info'>\n");
	html("<tr><th>author</th><td colspan='2'>");
	html_txt(info->author);
	html("</td></tr>\n");
	html("<tr><th>committer</th><td>");
	html_txt(info->committer);
	html("</td><td class='right'>");
	cgit_print_date(commit->date);
	html("</td></tr>\n");
	html("<tr><th>tree</th><td colspan='2' class='sha1'><a href='");
	html_attr(cgit_pageurl(cgit_query_repo, "tree", fmt("id=%s", sha1_to_hex(commit->tree->object.sha1))));
	htmlf("'>%s</a></td></tr>\n", sha1_to_hex(commit->tree->object.sha1));
	
	for (p = commit->parents; p ; p = p->next) {
		html("<tr><th>parent</th><td colspan='2' class='sha1'><a href='");
		html_attr(cgit_pageurl(cgit_query_repo, "commit", fmt("id=%s", sha1_to_hex(p->item->object.sha1))));
		htmlf("'>%s</a></td></tr>\n", 
		      sha1_to_hex(p->item->object.sha1));
	}
	html("</table>\n");
	html("<div class='commit-subject'>");
	html_txt(info->subject);
	html("</div>");
	html("<div class='commit-msg'>");
	html_txt(info->msg);
	html("</div>");
	free(info->author);
	free(info->committer);
	free(info->subject);
	free(info);
}