#include "fxBoot/terminal.h"
#include "fxBoot/parser.h"
#include "fxBoot/builtin.h"
#include "fxBoot/fs/smemfs.h"

#include <gint/std/string.h>
#include <gint/keyboard.h>
#include <gint/display.h>

/* internal builtin list */
struct {
	const char *name;
	int (*f)(int argc, char **argv);
} cmd_list[] = {
	{.name = "mnt", &mnt_main},
	{.name = "ls",  &ls_main},
	{.name = "hyp",  &hyp_main},
	{.name = NULL, NULL}
};

/* try to find the appropriate command */
static int (*check_cmd(char *cmd))(int, char**)
{
	for (int i = 0; cmd_list[i].name != NULL; ++i) {
		if (strcmp(cmd, cmd_list[i].name) != 0)
			continue;
		if (cmd_list[i].f == NULL)
			terminal_write("command exist but not implemented\n");
		return (cmd_list[i].f);
	}
	return (NULL);
}

int main(void)
{
	int (*builtin)(int, char**);
	const char *usrline;
	char buff[128];
	char **argv;
	int argc;
	int ret;

	/* automated hook */
	/* TODO: better way to execute early command */
	smemfs_mount();

	ret = 0;
	terminal_open();
	terminal_write("Welcome to fxBoot!\n");
	while (1) {
		/* get user command */
		usrline = "/>";
		if (ret != 0) {
			usrline = "/[%d]>";
		}
		terminal_write(usrline, ret);
		ret = 0;
		if (terminal_read(buff, 128) <= 1)
			continue;

		/* parse and try to find the command */
		if (parser_strtotab(&argc, &argv, buff) != 0) {
			terminal_write("error when processing \"%s\"", buff);
			ret = 255;
			continue;
		}
		builtin = check_cmd(argv[0]);
		if (builtin == NULL) {
			terminal_write("command \"%s\" not found...\n", argv[0]);
			ret = 127;
			continue;
		}

		/* execute the command and free'd allocated memories */
		ret = builtin(argc, argv);
		parser_strtotab_quit(&argc, &argv);
	}
	return (1);
}