#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <fuse.h>
#include <tcl.h>

#ifndef APPFS_CACHEDIR
#define APPFS_CACHEDIR "/var/cache/appfs"
#endif

#define APPFS_DEBUG(x...) { fprintf(stderr, "[debug] %s:%i:%s: ", __FILE__, __LINE__, __func__); fprintf(stderr, x); fprintf(stderr, "\n"); }

static pthread_key_t interpKey;

struct appfs_thread_data {
	sqlite3 *db;
	const char *cachedir;
	time_t boottime;
	const char *platform;
};

struct appfs_thread_data globalThread;

typedef enum {
	APPFS_PATHTYPE_INVALID,
	APPFS_PATHTYPE_FILE,

		}
	}

	appfs_free_list_children(dir_children);

	return(0);
}

static int appfs_add_path_child(const char *name, struct appfs_pathinfo *pathinfo, struct appfs_children **children) {
	struct appfs_children *new_child;

	pathinfo->typeinfo.dir.childcount++;

	if (children) {
		new_child = (void *) ckalloc(sizeof(*new_child));
		new_child->_next = *children;

		snprintf(new_child->name, sizeof(new_child->name), "%s", name);

		*children = new_child;
	}

	return(0);
}

/* Get information about a path, and optionally list children */
static int appfs_get_path_info(const char *_path, struct appfs_pathinfo *pathinfo, struct appfs_children **children) {
	struct appfs_children *dir_children;
	char *hostname, *packagename, *os_cpuArch, *os, *cpuArch, *version;
	char *path, *path_s;
	char *package_hash;
	char *sql;

	if (os_cpuArch == NULL) {
		appfs_update_index(hostname);

		sql = sqlite3_mprintf("SELECT DISTINCT os, cpuArch FROM packages WHERE hostname = %Q AND package = %Q;", hostname, packagename);

		free(path_s);

		retval = appfs_get_path_info_sql(sql, 2, "%s-%s", pathinfo, children);

		if (retval != 0) {
			return(retval);
		}

		appfs_add_path_child("platform", pathinfo, children);

		return(retval);
	}

	version = strchr(os_cpuArch, '/');

	if (version != NULL) {
		*version = '\0';
		version++;
	}

	os = os_cpuArch;
	cpuArch = strchr(os_cpuArch, '-');
	if (cpuArch) {
		*cpuArch = '\0';
		cpuArch++;
	} else {
		cpuArch = "";
	}

	if (version == NULL) {
		if (strcmp(os, "platform") == 0 && strcmp(cpuArch, "") == 0) {
			pathinfo->type = APPFS_PATHTYPE_SYMLINK;
			pathinfo->time = globalThread.boottime;
			pathinfo->typeinfo.dir.childcount = 0;
			pathinfo->typeinfo.symlink.size = strlen(globalThread.platform);

			snprintf(pathinfo->typeinfo.symlink.source, sizeof(pathinfo->typeinfo.symlink.source), "%s", globalThread.platform);

			free(path_s);

			return(0);
		}

		/* Request for version list for a package on an OS/CPU */
		appfs_update_index(hostname);

		sql = sqlite3_mprintf("SELECT DISTINCT version FROM packages WHERE hostname = %Q AND package = %Q AND os = %Q and cpuArch = %Q;", hostname, packagename, os, cpuArch);

		free(path_s);

int main(int argc, char **argv) {
	const char *cachedir = APPFS_CACHEDIR;
	char dbfilename[1024];
	int pthread_ret, snprintf_ret, sqlite_ret;

	globalThread.cachedir = cachedir;
	globalThread.boottime = time(NULL);
	globalThread.platform = "linux-x86_64";

	pthread_ret = pthread_key_create(&interpKey, NULL);
	if (pthread_ret != 0) {
		fprintf(stderr, "Unable to create TSD key for Tcl.  Aborting.\n");

		return(1);
	}