/* cgit.c: cgi for the git scm
 *
 * Copyright (C) 2006 Lars Hjemli
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"

const char cgit_version[] = CGIT_VERSION;


static struct repoinfo *cgit_get_repoinfo(char *url)
{
	int i;
	struct repoinfo *repo;
	
	for (i=0; i<cgit_repolist.count; i++) {
		repo = &cgit_repolist.repos[i];
		if (!strcmp(repo->url, url))
			return repo;
	}
	return NULL;
}


static int cgit_prepare_cache(struct cacheitem *item)
{
	if (!cgit_query_repo) {
		item->name = xstrdup(fmt("%s/index.html", cgit_cache_root));
		item->ttl = cgit_cache_root_ttl;
		return 1;
	}
	cgit_repo = cgit_get_repoinfo(cgit_query_repo);
	if (!cgit_repo) {
		char *title = fmt("%s - %s", cgit_root_title, "Bad request");
		cgit_print_docstart(title, item);
		cgit_print_pageheader(title, 0);
		cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo));
		cgit_print_docend();
		return 0;
	}

	if (!cgit_query_page) {
		item->name = xstrdup(fmt("%s/%s/index.html", cgit_cache_root, 
			   cgit_repo->url));
		item->ttl = cgit_cache_repo_ttl;
	} else {
		item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root, 
			   cgit_repo->url, cgit_query_page, 
			   cache_safe_filename(cgit_querystring)));
		if (cgit_query_has_symref)
			item->ttl = cgit_cache_dynamic_ttl;
		else if (cgit_query_has_sha1)
			item->ttl = cgit_cache_static_ttl;
		else
			item->ttl = cgit_cache_repo_ttl;
	}
	return 1;
}

static void cgit_print_repo_page(struct cacheitem *item)
{
	char *title;
	int show_search;

	if (chdir(cgit_repo->path)) {
		title = fmt("%s - %s", cgit_root_title, "Bad request");
		cgit_print_docstart(title, item);
		cgit_print_pageheader(title, 0);
		cgit_print_error(fmt("Unable to scan repository: %s",
				     strerror(errno)));
		cgit_print_docend();
		return;
	}

	title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc);
	show_search = 0;
	setenv("GIT_DIR", cgit_repo->path, 1);
	if (cgit_query_page && !strcmp(cgit_query_page, "log"))
		show_search = 1;
	cgit_print_docstart(title, item);
	cgit_print_pageheader(title, show_search);
	if (!cgit_query_page) {
		cgit_print_summary();
	} else if (!strcmp(cgit_query_page, "log")) {
		cgit_print_log(cgit_query_head, cgit_query_ofs, 100, cgit_query_search);
	} else if (!strcmp(cgit_query_page, "tree")) {
		cgit_print_tree(cgit_query_sha1, cgit_query_path);
	} else if (!strcmp(cgit_q<style>pre { line-height: 125%; }
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