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#include <string.h>
#include <freertos/FreeRTOS.h>
#include <freertos/timers.h>
#include <esp_log.h>
#include <driver/gpio.h>
#include <hap.h>
#include <hap_apple_servs.h>
#include <hap_apple_chars.h>
#include <lock.h>
#include <intercom.h>
#define INTERCOM_LOCK_GPIO_LOCKED 0
#define INTERCOM_LOCK_GPIO_UNLOCKED 1
#define HAP_LOCK_CURRENT_STATE_UNSECURED 0
#define HAP_LOCK_CURRENT_STATE_SECURED 1
#define HAP_LOCK_TARGET_STATE_UNSECURED 0
#define HAP_LOCK_TARGET_STATE_SECURED 1
static hap_val_t HAP_VAL_LOCK_CURRENT_STATE_UNSECURED = {.u = HAP_LOCK_CURRENT_STATE_UNSECURED};
static hap_val_t HAP_VAL_LOCK_CURRENT_STATE_SECURED = {.u = HAP_LOCK_CURRENT_STATE_SECURED};
static hap_val_t HAP_VAL_LOCK_TARGET_STATE_SECURED = {.u = HAP_LOCK_TARGET_STATE_SECURED};
static TimerHandle_t intercom_lock_timer; // lock the door when timer triggered
static hap_char_t *intercom_lock_current_state;
static hap_char_t *intercom_lock_target_state;
void intercom_lock_unsecure()
{
ESP_LOGI(TAG, "Intercom lock unsecure");
gpio_set_level(CONFIG_HOMEKIT_INTERCOM_LOCK_GPIO_PIN, INTERCOM_LOCK_GPIO_UNLOCKED);
hap_char_update_val(intercom_lock_current_state, &HAP_VAL_LOCK_CURRENT_STATE_UNSECURED);
xTimerReset(intercom_lock_timer, 10);
}
void intercom_lock_secure()
{
ESP_LOGI(TAG, "Intercom lock secure");
gpio_set_level(CONFIG_HOMEKIT_INTERCOM_LOCK_GPIO_PIN, INTERCOM_LOCK_GPIO_LOCKED);
hap_char_update_val(intercom_lock_current_state, &HAP_VAL_LOCK_CURRENT_STATE_SECURED);
}
int intercom_lock_write_cb(hap_write_data_t write_data[], int count, void *serv_priv, void *write_priv)
{
int i, ret = HAP_SUCCESS;
hap_write_data_t *write;
for (i = 0; i < count; i++)
{
write = &write_data[i];
if (!strcmp(hap_char_get_type_uuid(write->hc), HAP_CHAR_UUID_LOCK_TARGET_STATE))
{
ESP_LOGI(TAG, "Intercom lock received write [%d]", write->val.u);
switch (write->val.u)
{
case HAP_LOCK_TARGET_STATE_UNSECURED:
intercom_lock_unsecure();
break;
case HAP_LOCK_TARGET_STATE_SECURED:
intercom_lock_secure();
break;
}
/* Update target state */
hap_char_update_val(write->hc, &(write->val));
*(write->status) = HAP_STATUS_SUCCESS;
}
else
{
*(write->status) = HAP_STATUS_RES_ABSENT;
}
}
return ret;
}
void intercom_lock_timer_cb(TimerHandle_t timer)
{
ESP_LOGI(TAG, "Intercom lock timer fired");
intercom_lock_secure();
hap_char_update_val(intercom_lock_target_state, &HAP_VAL_LOCK_TARGET_STATE_SECURED);
}
hap_serv_t *intercom_lock_init(uint32_t key_gpio_pin)
{
hap_serv_t *intercom_lock_service = hap_serv_lock_mechanism_create(HAP_VAL_LOCK_CURRENT_STATE_SECURED.u, HAP_LOCK_TARGET_STATE_SECURED);
hap_serv_add_char(intercom_lock_service, hap_char_name_create("Intercom Lock"));
intercom_lock_current_state = hap_serv_get_char_by_uuid(intercom_lock_service, HAP_CHAR_UUID_LOCK_CURRENT_STATE);
intercom_lock_target_state = hap_serv_get_char_by_uuid(intercom_lock_service, HAP_CHAR_UUID_LOCK_TARGET_STATE);
hap_serv_set_write_cb(intercom_lock_service, intercom_lock_write_cb); /* Set the write callback for the service */
intercom_lock_timer = xTimerCreate("intercom_lock_timer", pdMS_TO_TICKS(CONFIG_HOMEKIT_INTERCOM_LOCK_TIMEOUT), pdFALSE, 0, intercom_lock_timer_cb);
gpio_config_t io_conf;
io_conf.intr_type = GPIO_INTR_DISABLE; /* Disable interrupt */
io_conf.pin_bit_mask = 1 << key_gpio_pin; /* Bit mask of the pins */
io_conf.mode = GPIO_MODE_OUTPUT; /* Set as input mode */
io_conf.pull_up_en = GPIO_PULLUP_DISABLE; /* Disable internal pull-up */
io_conf.pull_down_en = GPIO_PULLDOWN_ENABLE; /* Enable internal pull-down */
gpio_config(&io_conf); /* Set the GPIO configuration */
return intercom_lock_service;
}
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