os_start_cli:
	pusha

	
	call os_print_newline

	mov si, prompt
	call os_print_string

	mov bx, 20

	mov ax, user_input

	call keyboard_display_input
	jc power_reboot
	jmp os_read_cli


; ------------------------------------------------

os_read_cli:
	pusha
	mov ax, user_input
	call string_upper_case ; Make the input uppercase so it's case insensitive

.output_the_user_input:
	call os_print_newline

.check_matches:			; Check if the user input matches any internal commands
	; Help
	mov si, user_input
	mov di, help_string
	call os_compare_strings
	cmp cl, 1
	je .help

	; Clear screen
	mov si, user_input
	mov di, clear_string
	call os_compare_strings
	cmp cl, 1
	je .clear

	; Reboot
	mov si, user_input
	mov di, reboot_string
	call os_compare_strings
	cmp cl, 1
	je power_reboot

	; Basic
	mov si, user_input
	mov di, basic_string
	call os_compare_strings
	cmp cl, 1
	je .basic

	; Cat
	mov si, user_input
	mov di, cat_string
	call os_compare_strings
	cmp cl, 1
	je .cat

    ; LS
	mov si, user_input
	mov di, ls_string
	call os_compare_strings
	cmp cl, 1
	je .ls
	
    ;ED 
	mov si, user_input
	mov di, ed_string
	call os_compare_strings
	cmp cl, 1
	je .ed

	jmp .unkown

.unkown:
	mov si, unknown_command
	call os_print_string
	mov si, user_input
	call os_print_string
	jmp .finish

.finish:
	; Clear the user input
	mov al, 0
	mov cx, 20
	mov di,user_input 
	repe stosb
	popa
	call os_start_cli

.clear:
	call os_set_text_mode
	call os_read_cli.finish

.help:
	mov si, help_text
	call os_print_string
	call os_read_cli.finish

.basic:
	call util_basic
	call os_read_cli.finish
.cat:
   call util_cat
   call os_read_cli.finish
.ls:
   call util_ls
   call os_read_cli.finish
.ed:
   call util_ed
   call os_read_cli.finish