#include "libargs/args.h"

#include "util.h"
#include "package_db.h"
#include "build_db.h"
#include "download_db.h"

int cmd_install(char* cmd_name, ArgParser* parser);

int main(int argc, char* argv[]) {

	// create argument parser
    ArgParser* parser = ap_new_parser();
	if (parser == NULL) die("failed to initialize cli parsing");
    ap_set_helptext(parser, "Usage: snag <command>");
    ap_set_version(parser, "0.0");

	// add install subcommand
	ArgParser* install = ap_new_cmd(parser, "install inst i");
	if (install == NULL) die("failed to initialize install cli subcommand");
    ap_set_helptext(install, "Usage: snag install [packages]");
    ap_set_cmd_callback(install, cmd_install);

	// parse the arguments (automatically executes subcommands)
    if (!ap_parse(parser, argc, argv)) die("failed to parse arguments");

	// if no subcommand was specified, parse and execute install as the root command
	if (!ap_found_cmd(parser)) {
		if (!ap_parse(install, argc, argv)) die("failed to parse arguments");
		cmd_install("install", install);
	}

    ap_free(parser);
	return 0;
}

int cmd_install(char* cmd_name, ArgParser* parser) {

	// install each package specified
	for (int i = 0; i < ap_count_args(parser); i++) {
		if (i != 0) print("\n");

		// load package description
		char* pkgid = ap_get_arg_at_index(parser, i);
		package_info_t info;
		if (load_package_info(pkgid, &info)) {
			print("Installing %s - %s\n", info.attrs.name, info.attrs.desc);

			// download or retrieve package download
			package_download_t download;
			package_get_download(&info, &download);

			// run the package install
			package_run_install(&info);
		}
	}

	return 0;
}