#include "ate0004.h"
#include "zh_pcf8574.h"

static i2c_master_bus_handle_t i2c_bus_handle = NULL;

static zh_pcf8574_handle_t button_handle = {0};
static zh_pcf8574_handle_t led_handle = {0};
static zh_pcf8574_handle_t relay_handle = {0};

static bool is_ts = true;
static bool is_ret = false;
static bool is_ext = false;

void zh_pcf8574_event_handler(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data);

void app_main(void)
{
    esp_log_level_set("zh_pcf8574", ESP_LOG_ERROR);
    esp_log_level_set("zh_vector", ESP_LOG_ERROR);
    gpio_config_t triac_pin_config = {
        .intr_type = GPIO_INTR_DISABLE,
        .mode = GPIO_MODE_OUTPUT,
        .pin_bit_mask = (1ULL << TRIAC_GPIO),
        .pull_down_en = GPIO_PULLDOWN_DISABLE,
        .pull_up_en = GPIO_PULLUP_DISABLE,
    };
    gpio_config(&triac_pin_config);
    gpio_set_level(TRIAC_GPIO, LOW);
    i2c_master_bus_config_t i2c_bus_config = {
        .clk_source = I2C_CLK_SRC_DEFAULT,
        .scl_io_num = GPIO_NUM_22,
        .sda_io_num = GPIO_NUM_21,
        .glitch_ignore_cnt = 7,
    };
    i2c_new_master_bus(&i2c_bus_config, &i2c_bus_handle);
    esp_event_loop_create_default();
    esp_event_handler_instance_register(ZH_PCF8574, ESP_EVENT_ANY_ID, &zh_pcf8574_event_handler, NULL, NULL);
    zh_pcf8574_init_config_t pcf8574_init_config = ZH_PCF8574_INIT_CONFIG_DEFAULT();
    pcf8574_init_config.i2c_handle = i2c_bus_handle;
    pcf8574_init_config.i2c_address = LED_I2C_ADDRESS;
    zh_pcf8574_init(&pcf8574_init_config, &led_handle);
    pcf8574_init_config.i2c_address = RELAY_I2C_ADDRESS;
    zh_pcf8574_init(&pcf8574_init_config, &relay_handle);
    pcf8574_init_config.i2c_address = BUTTON_I2C_ADDRESS;
    pcf8574_init_config.p0_gpio_work_mode = true;
    pcf8574_init_config.p1_gpio_work_mode = true;
    pcf8574_init_config.p2_gpio_work_mode = true;
    pcf8574_init_config.interrupt_gpio = GPIO_NUM_17;
    zh_pcf8574_init(&pcf8574_init_config, &button_handle);
    zh_pcf8574_write_gpio(&led_handle, TS_LED_GREEN, LED_ON);
    zh_pcf8574_write_gpio(&led_handle, RET_LED_BLUE, LED_ON);
    zh_pcf8574_write_gpio(&led_handle, EXT_LED_BLUE, LED_ON);
}

void zh_pcf8574_event_handler(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data)
{
    zh_pcf8574_event_on_isr_t *event = event_data;
    switch (event->gpio_number)
    {
    case TS_BUTTON:
        if (event->gpio_level == LOW && is_ret == false && is_ext == false)
        {
            if (is_ts == true)
            {
                zh_pcf8574_write_gpio(&led_handle, TS_LED_RED, LED_ON);
                zh_pcf8574_write_gpio(&led_handle, TS_LED_GREEN, LED_OFF);
                zh_pcf8574_write_gpio(&relay_handle, TS_RELAY, RELAY_OFF);
                is_ts = false;
            }
            else
            {
                zh_pcf8574_write_gpio(&led_handle, TS_LED_RED, LED_OFF);
                zh_pcf8574_write_gpio(&led_handle, TS_LED_GREEN, LED_ON);
                zh_pcf8574_write_gpio(&relay_handle, TS_RELAY, RELAY_ON);
                is_ts = true;
            }
        }
        break;
    case RET_BUTTON:
        if (is_ext == true)
        {
            break;
        }
        if (event->gpio_level == LOW)
        {
            is_ret = true;
            zh_pcf8574_write_gpio(&led_handle, RET_LED_BLUE, LED_OFF);
            zh_pcf8574_write_gpio(&led_handle, RET_LED_GREEN, LED_ON);
            zh_pcf8574_write_gpio(&relay_handle, RET_RELAY, RELAY_ON);
            zh_pcf8574_write_gpio(&relay_handle, GROUND_RELAY, RELAY_ON);
            vTaskDelay(20 / portTICK_PERIOD_MS);
            gpio_set_level(TRIAC_GPIO, HIGH);
        }
        else
        {
            gpio_set_level(TRIAC_GPIO, LOW);
            vTaskDelay(1 / portTICK_PERIOD_MS);
            zh_pcf8574_write_gpio(&led_handle, RET_LED_BLUE, LED_ON);
            zh_pcf8574_write_gpio(&led_handle, RET_LED_GREEN, LED_OFF);
            zh_pcf8574_write_gpio(&relay_handle, RET_RELAY, RELAY_OFF);
            zh_pcf8574_write_gpio(&relay_handle, GROUND_RELAY, RELAY_OFF);
            is_ret = false;
        }
        break;
    case EXT_BUTTON:
        if (is_ret == true)
        {
            break;
        }
        if (event->gpio_level == LOW)
        {
            is_ext = true;
            zh_pcf8574_write_gpio(&led_handle, EXT_LED_BLUE, LED_OFF);
            zh_pcf8574_write_gpio(&led_handle, EXT_LED_GREEN, LED_ON);
            zh_pcf8574_write_gpio(&relay_handle, EXT_RELAY, RELAY_ON);
            zh_pcf8574_write_gpio(&relay_handle, GROUND_RELAY, RELAY_ON);
            vTaskDelay(20 / portTICK_PERIOD_MS);
            gpio_set_level(TRIAC_GPIO, HIGH);
        }
        else
        {
            gpio_set_level(TRIAC_GPIO, LOW);
            vTaskDelay(1 / portTICK_PERIOD_MS);
            zh_pcf8574_write_gpio(&led_handle, EXT_LED_BLUE, LED_ON);
            zh_pcf8574_write_gpio(&led_handle, EXT_LED_GREEN, LED_OFF);
            zh_pcf8574_write_gpio(&relay_handle, EXT_RELAY, RELAY_OFF);
            zh_pcf8574_write_gpio(&relay_handle, GROUND_RELAY, RELAY_OFF);
            is_ext = false;
        }
        break;
    default:
        break;
    }
    printf("Interrupt happened on device address 0x%02X on GPIO number %d at level %d.\n", event->i2c_address, event->gpio_number, event->gpio_level);
}