#include <stdio.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>

#include <sys/ioctl.h>

#include "mfshell.h"
#include "console.h"
#include "private.h"
#include "stringv.h"

int
console_control_mode(int mode)
{
    static struct termios   saved_state;
    struct termios          new_state;
    int                     retval = 0;

    switch(mode)
    {
        case CONSOLE_STATE_SAVE:
        {
            retval = tcgetattr(STDIN_FILENO,&saved_state);
            break;
        }

        case CONSOLE_STATE_RESTORE:
        {
            retval = tcsetattr(STDIN_FILENO,TCSANOW,&saved_state);
            break;
        }

        case CONSOLE_ECHO_OFF:
        {
            tcgetattr(STDIN_FILENO,&new_state);
            new_state.c_lflag &= (~ECHO);
            // new_state.c_cc[VERASE] = '\b';
            // new_state.c_lflag &= (~ECHOE);
            tcsetattr(STDIN_FILENO,TCSANOW,&new_state);
            break;
        }

        case CONSOLE_ECHO_ON:
        {
            tcgetattr(STDIN_FILENO,&new_state);
            new_state.c_lflag |= ECHO;
            tcsetattr(STDIN_FILENO,TCSANOW,&new_state);
            break;
        }

        default:
            retval = -1;
    }

    return retval;
}

int
console_get_metrics(int *height,int *width)
{
    struct winsize  metrics;

    if(height == NULL || width == NULL) return -1;

    ioctl(0,TIOCGWINSZ,&metrics);

    *height = metrics.ws_row;
    *width = metrics.ws_col;

    return 0;
}

int
_execute_shell_command(mfshell_t *mfshell,char *command)
{
    extern int      term_resized;
    extern int      term_height;
    extern int      term_width;

    char            **argv = NULL;
    int             argc = 0;
    int             retval;

    if(mfshell == NULL) return -1;
    if(command == NULL) return -1;

    // check to see if the terminal has been resized
    if(term_resized == 1)
    {
        if(console_get_metrics(&term_height,&term_width) == 0)
        {
            term_resized = 1;
        }
    }

    if(term_width < 30)
    {
        printf("[EE] terminal size to small\n\r");
        return -1;
    }

    argv = stringv_split(command," ",5);
    if(argv == NULL) return -1;

    argc = stringv_len(argv);

    if(strcmp(argv[0],"whoami") == 0)
    {
        retval = mfshell->user_get_info(mfshell);
        mfshell->update_secret_key(mfshell);
    }

    if(strcmp(argv[0],"help") == 0)
    {
        mfshell->help();
    }

    if(strcmp(argv[0],"host") == 0)
    {
        if(argc > 1 && argv[1] != '\0')
        {
            retval = mfshell->host(mfshell,argv[1]);
        }
        else
        {
            retval = mfshell->host(mfshell,NULL);
        }
    }

    if(strcmp(argv[0],"debug") == 0)
    {
        retval = mfshell->debug(mfshell);
    }

    if((strcmp(argv[0],"ls") == 0) || strcmp(argv[0],"list") == 0)
    {
        retval = mfshell->list(mfshell);
    }

    if((strcmp(argv[0],"cd") == 0) || strcmp(argv[0],"chdir") == 0)
    {
        if(argc > 1 && argv[1] != '\0')
        {
            retval = mfshell->chdir(mfshell,argv[1]);
        }
    }

    if(strcmp(argv[0],"pwd") == 0)
    {
        retval = mfshell->pwd(mfshell);
    }

    if(strcmp(argv[0],"lpwd") == 0)
    {
        retval = mfshell->lpwd(mfshell);
    }

    if(strcmp(argv[0],"lcd") == 0)
    {
        if(argc > 1 && argv[1] != '\0')
        {
            retval = mfshell->lcd(mfshell,argv[1]);
        }
    }

    if(strcmp(argv[0],"file") == 0)
    {
        if(argc > 1 && argv[1] != '\0')
        {
            retval = mfshell->file(mfshell,argv[1]);
        }
    }

    if(strcmp(argv[0],"links") == 0)
    {
        if(argc > 1 && argv[1] != '\0')
        {
            retval = mfshell->links(mfshell,argv[1]);
        }
    }

    if(strcmp(argv[0],"get") == 0)
    {
        if(argc > 1 && argv[1] != '\0')
        {
            retval = mfshell->get(mfshell,argv[1]);
        }
    }

    if(strcmp(argv[0],"auth") == 0)
    {
        retval = mfshell->auth(mfshell);
    }

    if(strcmp(argv[0],"mkdir") == 0)
    {
        if(argc > 1 && argv[1] != '\0')
        {
            retval = mfshell->mkdir(mfshell,argv[1]);
        }
    }

    stringv_free(argv,STRINGV_FREE_ALL);

    return 0;
}