; The OS/K Team licenses this file to you under the MIT license.
; See the LICENSE file in the project root for more information.

.handle_ERASE:
    mov rax, Sys.RemoveFile
    mov ax0, q[argv1pos]
    bzr ax0, .need_params
    trap 0

    bltz rax, .couldnt_remove

    jmp .handle_MAKE    ; re-create it back

.handle_MAKE:
    mov rax, Sys.CreateFile
    mov ax0, q[argv1pos]
    bzr ax0, .need_params
    trap 0

    bltz rax, .couldnt_open

    jmp .print_prompt

.handle_PRINT:
    mov rax, Sys.OpenFile
    mov ax0, q[argv1pos]
    bzr ax0, .need_params
    trap 0

    bltz rax, .file_not_found

    mov ax0, rax
    mov ax1, FILE_LOADP
    mov ax2, FILE_MAXSZ

    mov rax, Sys.ReadFile
    trap 0

    mov rcx, rax

    mov rax, Sys.CloseFile
    trap 0

    bltz rcx, .couldnt_read
    jrcxz .empty_file

    call nprint, FILE_LOADP, rcx

    jmp .print_prompt

.handle_REMOVE:
    mov rax, Sys.RemoveFile
    mov ax0, q[argv1pos]
    bzr ax0, .need_params
    trap 0

    bltz rax, .couldnt_remove

    jmp .print_prompt