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/*
 * Copyright (c) 2005 Martin Decky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup init Init
 * @brief   Init process for testing purposes.
 * @{
 */ 
/**
 * @file
 */

#include <stdio.h>
#include <unistd.h>
#include <vfs/vfs.h>
#include <bool.h>
#include <errno.h>
#include <fcntl.h>
#include <task.h>
#include <malloc.h>
#include "init.h"
#include "version.h"

#define BUF_SIZE 150000

static char *buf;

static void console_wait(void)
{
    while (get_cons_phone() < 0)
        usleep(50000);  // FIXME
}

static bool mount_tmpfs(void)
{
    int rc = -1;
    
    while (rc < 0) {
        rc = mount("tmpfs", "/", "initrd");
        
        switch (rc) {
        case EOK:
            printf(NAME ": Root filesystem mounted\n");
            break;
        case EBUSY:
            printf(NAME ": Root filesystem already mounted\n");
            break;
        case ELIMIT:
            printf(NAME ": Unable to mount root filesystem\n");
            return false;
        default:
            sleep(5);   // FIXME
        }
    }
    
    return true;
}

static void spawn(char *fname)
{
    printf(NAME ": Spawning %s\n", fname);
    
    int fd = open(fname, O_RDONLY);
    if (fd >= 0) {
    
        ssize_t rd;
        size_t len = 0;
        
        // FIXME: cannot do long reads yet
        do {
            rd = read(fd, buf + len, 1024);
            if (rd > 0)
                len += rd;
            
        } while (rd > 0);
        
        if (len > 0) {
            task_spawn(buf, len);
            sleep(1);   // FIXME
        }
        
        close(fd);
    }
}

int main(int argc, char *argv[])
{
    info_print();
    sleep(5);   // FIXME
    
    if (!mount_tmpfs()) {
        printf(NAME ": Exiting\n");
        return -1;
    }
    
    buf = malloc(BUF_SIZE);
    
    // FIXME: spawn("/sbin/pci");
    spawn("/sbin/fb");
    spawn("/sbin/kbd");
    spawn("/sbin/console");
    
    console_wait();
    version_print();
    
    spawn("/sbin/fat");
    spawn("/sbin/tetris");
    // FIXME: spawn("/sbin/tester");
    // FIXME: spawn("/sbin/klog");
    
    free(buf);
    return 0;
}

/** @}
 */