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#include <terminal/terminal.h>
#include <knob/format.h>
#include <knob/heap.h>
#include <knob/key.h>
#include <pland/syscall.h>
#include <stdint.h>
//returns length of string without null terminator
//max_length doesn't include null terminator
uint32_t read_line(char *sz, uint32_t max_length, const char *prompt) {
uint32_t i = 0;
uint32_t l = 0;
term_add_sz_no_ww(prompt);
paint_term();
const _window_handle_t handle = active_term->window;
struct window_action action;
while (1) {
_get_win_action(handle, &action);
switch (action.action_type) {
case NOT_READY:
_wait_for_action();
_yield_task();
continue;
case KEY_DOWN:
//;char *const debug_msg = format("got key 0x%2x, 0x%3x", action.as_key.key_id, action.as_key.modifiers);
// _system_log(debug_msg);
// free_block(debug_msg);
switch (action.as_key.key_id) {
case KEY_DELETE:
if (i != l) {
cursor_right();
++i;
}
case KEY_BSPACE:
if (!i)
continue;
--l;
--i;
for (uint8_t j = i; j < l; ++j)
sz[j] = sz[j + 1];
sz[l] = '\0';
cursor_left();
uint32_t cursor_backup_x = active_term->cursor_x;
uint32_t cursor_backup_y = active_term->cursor_y;
term_add_sz_no_ww(sz + i);
term_add_char(' ');
move_cursor(cursor_backup_y, cursor_backup_x);
paint_term();
continue;
case KEY_ENTER:
term_newline();
paint_term();
sz[l] = '\0';
return l;
case KEY_HOME:
case KEY_UP_ARROW:
for (; i; --i)
cursor_left();
paint_term();
continue;
case KEY_END:
case KEY_DOWN_ARROW:
for (; i != l; ++i)
cursor_right();
paint_term();
continue;
case KEY_LEFT_ARROW:
if (i) {
cursor_left();
paint_term();
--i;
}
continue;
case KEY_RIGHT_ARROW:
if (i != l) {
cursor_right();
paint_term();
++i;
}
continue;
default:
if (i == max_length)
continue;
char ch = key_to_char(action.as_key);
if (ch) {
term_add_char(ch);
paint_term();
sz[i] = ch;
if (i == l)
++l;
++i;
}
continue;
}
default:
continue;
}
}
}
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