/**
 * Copyright (c) 2025 Dominic Masters
 * 
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */

#include "consolevar.h"
#include "assert/assert.h"
#include "util/memory.h"
#include "util/string.h"

void consoleVarInit(
  consolevar_t *var,
  const char_t *name,
  const char_t *value
) {
  assertNotNull(var, "var must not be NULL");
  assertNotNull(name, "name must not be NULL");
  assertNotNull(value, "value must not be NULL");

  assertStrLenMin(name, 1, "name must not be empty");
  assertStrLenMax(name, CONSOLE_VAR_NAME_MAX, "name is too long");
  assertStrLenMax(value, CONSOLE_VAR_VALUE_MAX, "value is too long");

  memoryZero(var, sizeof(consolevar_t));
  stringCopy(var->name, name, CONSOLE_VAR_NAME_MAX);
  stringCopy(var->value, value, CONSOLE_VAR_VALUE_MAX);
}

void consoleVarInitListener(
  consolevar_t *var,
  const char_t *name,
  const char_t *value,
  consolevarchanged_t event
) {
  consoleVarInit(var, name, value);
  if(event) consoleVarListen(var, event);
}

void consoleVarSetValue(consolevar_t *var, const char_t *value) {
  assertNotNull(var, "var must not be NULL");
  assertNotNull(value, "value must not be NULL");
  assertStrLenMax(value, CONSOLE_VAR_VALUE_MAX, "value is too long");

  stringCopy(var->value, value, CONSOLE_VAR_VALUE_MAX);
  
  uint8_t i = 0;
  while (i < var->eventCount) {
    var->events[i](var);
    i++;
  }
}

void consoleVarListen(consolevar_t *var, consolevarchanged_t event) {
  assertNotNull(var, "var must not be NULL");
  assertNotNull(event, "event must not be NULL");
  assertTrue(
    var->eventCount < CONSOLE_VAR_EVENTS_MAX,
    "Event count is too high"
  );
  var->events[var->eventCount++] = event;
}