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#include "shell.h"
#include "font.h"
#include "heap.h"
#include "fs.h"
#include "gfx.h"
#include "string.h"
#include "pci.h"
#include "memory.h"
static void cmd_echo(str arg)
{
print(arg);
print_char('\n');
}
static void cmd_cat(str arg)
{
str f = fs_read(arg);
if (f.data == nil) {
print(S("cat: file not found: "));
print(arg);
print(S("\n"));
} else {
print(f);
free(f.data);
}
}
static void cmd_font(str arg)
{
str f = fs_read(arg);
if (f.data == nil) {
print(S("font: file not found: "));
print(arg);
print(S("\n"));
} else {
if (f.len == 16*256)
font_load_blob(f.data);
else
print(S("font: invalid file size\n"));
free(f.data);
}
}
static void cmd_fontdemo()
{
const u8 max = '~' - '!' + 1;
char buf[max];
for (u8 i = 0; i < max; i++)
buf[i] = i + '!';
print(S("fontdemo:\n"));
print((str) { max, buf });
print(S("\n"));
}
static void cmd_img(str arg)
{
str f = fs_read(arg);
if (f.data == nil) {
print(S("img: file not found: "));
print(arg);
print(S("\n"));
} else {
if (f.len < 2 * sizeof(u32))
print(S("img: missing header\n"));
else {
u32 width = ((u32 *) f.data)[0];
u32 height = ((u32 *) f.data)[1];
if (f.len != 2 * sizeof(u32) + width * height * sizeof(color))
print(S("img: invalid file size\n"));
else
gfx_draw_img(gfx_info->width-width, 0, width, height,
(void *) (f.data + 2 * sizeof(u32)));
}
free(f.data);
}
}
static void cmd_lspci(str arg)
{
(void) arg;
pci_enumerate();
}
static void cmd_run(str arg)
{
str f = fs_read(arg);
if (f.data == nil) {
print(S("run: file not found: "));
print(arg);
print(S("\n"));
} else {
str iter = f;
for (;;) {
str cmd = str_walk(&iter, S("\n"));
if (cmd.data == nil)
break;
shell_run_cmd(cmd);
}
free(f.data);
}
}
extern char keymap[256];
static void cmd_loadkeys(str arg)
{
str f = fs_read(arg);
if (f.data == nil) {
print(S("loadkeys: file not found: "));
print(arg);
print(S("\n"));
} else {
if (f.len == 256)
memcpy(keymap, f.data, 256);
else
print(S("loadkeys: invalid file size\n"));
free(f.data);
}
}
static void cmd_clear(str arg)
{
(void) arg;
font_clear_screen();
}
int rand()
{
static unsigned long int next = 1;
next = next * 1103515245 + 12345;
return (unsigned int) (next/65535) % 32768;
}
static void cmd_love(str arg)
{
if (arg.len == 0)
arg = (rand()%2) ? S("anna") : S("floof");
str f = fs_read(S("uwu.txt"));
if (f.data == nil) {
print(S("love: missing file uwu.txt\n"));
} else {
isize start = 172-arg.len/2;
if (start < 0 || start + arg.len > f.len) {
print(S("love: argument too long (owo it's too big for me)\n"));
} else {
memcpy(f.data+start, arg.data, arg.len);
print(f);
}
free(f.data);
}
}
extern str version;
static void cmd_uname(str arg)
{
(void) arg;
print(S("cuddles "));
print(version);
print(S("\n"));
}
static u64 ipow(u64 b, u64 exp)
{
u64 x = 1;
for (u64 i = 0; i < exp; i++)
x *= b;
return x;
}
static void print_bytes(usize bytes)
{
static char fmt[] = { ' ', 'K', 'M', 'G', 'T' };
usize unit = ipow(1000, LEN(fmt)-1);
for (usize i = 0; i < LEN(fmt); i++) {
if (bytes >= unit || unit == 1) {
print_num_pad(bytes/unit, 10, 3, ' ');
print_char('.');
print_dec((bytes%unit)/100);
print_char(' ');
print_char(fmt[LEN(fmt)-1-i]);
print_char('B');
break;
}
unit /= 1000;
}
}
static void cmd_ls(str arg)
{
dir d = fs_readdir(arg);
usize longest = 0;
for (usize i = 0; i < d.len; i++)
if (longest < d.data[i].name.len)
longest = d.data[i].name.len;
for (usize i = 0; i < d.len; i++) {
print_char(' ');
print_bytes(d.data[i].size);
print_char(' ');
print(d.data[i].name);
for (usize j = 0; j < longest+1-d.data[i].name.len; j++)
print_char(' ');
if (d.data[i].is_dir) {
print_dec(d.data[i].children);
print(S(" files"));
}
print_char('\n');
free(d.data[i].name.data);
}
if (d.data != nil)
free(d.data);
}
typedef struct {
str name;
void (*fn)(str arg);
} command;
static command registry[] = {
{ S("echo"), &cmd_echo },
{ S("cat"), &cmd_cat },
{ S("font"), &cmd_font },
{ S("fontdemo"), &cmd_fontdemo },
{ S("img"), &cmd_img },
{ S("lspci"), &cmd_lspci },
{ S("run"), &cmd_run },
{ S("loadkeys"), &cmd_loadkeys },
{ S("clear"), &cmd_clear },
{ S("love"), &cmd_love },
{ S("uname"), &cmd_uname },
{ S("ls"), &cmd_ls },
};
void shell_run_cmd(str cmd)
{
str prog = str_walk(&cmd, S(" \t"));
if (prog.len == 0)
return;
for (usize i = 0; i < LEN(registry); i++) {
if (str_cmp(prog, registry[i].name) == 0) {
registry[i].fn(cmd);
return;
}
}
print(S("shell: unknown command: "));
print(prog);
print(S("\n"));
}
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