// Internet Downloader
#include <redbus.h>
#include <console.h>
#include <internet.h>
#include <stdlib.h>
#include <string.h>
#include <disk.h>
#include "conio.h"
#include "downloader.h"

#define redbus 0x0300

void download_file(char* file) {
    unsigned int i;
    unsigned int x;
    con->cursor_mode = 0;
    conprint("Downloading file, please wait warmly.", 0, 6);
    rb_map_device(0x05);
    memset(internet->url, 0, 50);
    strcpy(internet->url, buffer);
    internet->command = 1;
    while(internet->command == 1);
    if(internet->command == 0xFF){
        conprint("Error in file download, please try again", 0, 7);
    } else {
        sectorcount = internet->sector_count;
        conprint(strcat(strcat("The file downloaded is of size ", itoa(sectorcount, 0, 10)), " Kilobytes"), 0, 7);
        conprint("Transferring data", 0, 8);
        for(i = 0; i <= sectorcount; ++i){
            rb_map_device(0x05);
            internet->sector_num = i;
            memcpy(databuf, internet->webbuf, 128);
            rb_map_device(0x02);
            disk->sector_num = i;
            memcpy(disk->sector, databuf, 128);
            disk->command = (char)5;
            while(disk->command != 0x00 && disk->command != 0xFF);
        }
        conprint("Data transferred!", 0, 8);
    }
}

void main() { 
    memset(buffer, 0, 50);
    memset(ynbuf, 0, 50);
    memset(databuf, 0, 50);
    internet = (Internet*)redbus; 
    disk = (Disk*)redbus;
    con = (Console*)redbus;
    rb_set_window((void*)redbus); 
    rb_enable();
    conclear();
    conprint("Internet Disk Retrieval System V1.3", 0, 0);
    conprint("Please remove disk now", 0, 1);
    conprint("Enter a URL to download from: ", 0, 2);
    con->cursor_y = 3;
    strcpy(buffer, read_keyboard()); 
    conprint("You are trying to download a file from: ", 0, 3);
    conprint(buffer, 0, 4);
    con->cursor_x = 23;
    con->cursor_y = 5;
    conprint("Is this correct? (Y/N)", 0, 5);
    memset(ynbuf, 0, 50);
        strcpy(ynbuf, read_keyboard());
    if(ynbuf[0] == 'Y' || ynbuf[0] == 'y') {
        download_file(buffer);
    } else{
        conprint("Download cancelled", 0, 6);
    }
}