//----------------------------------------------------------------------------//
//                           GNU GPL OS/K                                     //
//                                                                            //
//  Desc:       Kernel "shell" entry point                                    //
//                                                                            //
//                                                                            //
//  Copyright © 2018-2019 The OS/K Team                                       //
//                                                                            //
//  This file is part of OS/K.                                                //
//                                                                            //
//  OS/K is free software: you can redistribute it and/or modify              //
//  it under the terms of the GNU General Public License as published by      //
//  the Free Software Foundation, either version 3 of the License, or         //
//  any later version.                                                        //
//                                                                            //
//  OS/K is distributed in the hope that it will be useful,                   //
//  but WITHOUT ANY WARRANTY//without even the implied warranty of            //
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             //
//  GNU General Public License for more details.                              //
//                                                                            //
//  You should have received a copy of the GNU General Public License         //
//  along with OS/K.  If not, see <https://www.gnu.org/licenses/>.            //
//----------------------------------------------------------------------------//

#include <extras/buf.h>
#include <kernel/time.h>
#include <kernel/speaker.h>
#include <kernel/iomisc.h>
#include <kernel/pwmgnt.h>
#include <kernel/keyboard.h>

extern void IoScrollDown(void);
extern void IoScrollUp(void);

void KeStartShell(void)
{
    uchar ch;
    error_t rc;

    KernLog("\nshell > ");
    BFlushBuf(BStdOut);

    while ((rc = bgetc(BStdIn, &ch)) == EOK) {
        switch (ch) {

        case KEY_BEL:
            if (rand() % 64 == 0) {
                IoDoStarWars();
            }
            else IoDoBeep();
            KernLog("beep");
            KernLog("\nshell > ");
            BFlushBuf(BStdOut);
            break;

        case KEY_DC1:
            IoScrollUp();
            break;

        case KEY_DC2:
            IoScrollDown();
            break;

        case KEY_ESC:
            PoShutdownQemu();
            break;
        case '\n':
            KernLog("shell > ");
            BFlushBuf(BStdOut);
            break;
        }
        KePauseCPU();
    }
}