#ifdef SUPPORT_MS_EXTENSIONS
#pragma bss_seg(".key.data.bss")
#pragma data_seg(".key.data")
#pragma const_seg(".key.text.const")
#pragma code_seg(".key.text")
#endif
#include "app_msg.h"
#include "key_driver.h"
#include "system/timer.h"
#include "sdk_config.h"

struct key_hold {
    u8 send_3s_msg;
    u8 send_5s_msg;
    u32 start_time;
};

static struct key_hold key_hold_hdl[3];

static struct key_hold *get_key_hold(u8 key_value)
{
    if (key_value < ARRAY_SIZE(key_hold_hdl)) {
        return &key_hold_hdl[key_value];
    }
    return NULL;
}


/* --------------------------------------------------------------------------*/
/**
 * @brief 多击按键判断
 *
 * @param key：基础按键动作（mono_click、long、hold、up）和键值
 *
 * @return 0：不拦截按键事件
 *         1：拦截按键事件
 */
/* ----------------------------------------------------------------------------*/
static int multi_clicks_translate(struct key_event *key)
{
    static u8 click_cnt;
    static u8 notify_value = 0xff;
    struct key_hold *hold = get_key_hold(key->value);

    if (key->event == KEY_ACTION_LONG) {
        if (hold) {
            hold->start_time = jiffies;
        }
    } else if (key->event == KEY_ACTION_HOLD) {
        if (hold) {
            int time_msec = jiffies_offset_to_msec(hold->start_time, jiffies);
            if (time_msec >= 3000 && hold->send_3s_msg == 0) {
                hold->send_3s_msg = 1;
                key->event = KEY_ACTION_HOLD_3SEC;
            } else if (time_msec >= 5000 && hold->send_5s_msg) {
                hold->send_5s_msg = 1;
                key->event = KEY_ACTION_HOLD_5SEC;
            }
        }
    } else {
        if (hold) {
            hold->send_3s_msg = 0;
            hold->send_5s_msg = 1;
            hold->start_time = 0;
        }
    }

    if (key->event == KEY_ACTION_CLICK) {
        if (key->value != notify_value) {
            click_cnt = 1;
            notify_value = key->value;
        } else {
            click_cnt++;
        }
        return 1;
    }
    if (key->event == KEY_ACTION_NO_KEY) {
        if (click_cnt >= 2) {
            key->event = KEY_ACTION_DOUBLE_CLICK + (click_cnt - 2);
        } else {
            key->event = KEY_ACTION_CLICK;
        }
        key->value = notify_value;
        click_cnt = 0;
        notify_value = NO_KEY;
    } else if (key->event > KEY_ACTION_CLICK) {
        click_cnt = 0;
        notify_value = NO_KEY;
    }
    return 0;
}

/* --------------------------------------------------------------------------*/
/**
 * @brief 联合按键判断
 *
 * @param key：基础按键动作（mono_click、long、hold、up）和键值
 *
 * @return 0：不拦截按键事件
 *         1：拦截按键事件
 */
/* ----------------------------------------------------------------------------*/
static int combination_key_translate(struct key_event *key)
{
    return 0;
}

/* --------------------------------------------------------------------------*/
/**
 * @brief 按键事件过滤、检测和发送
 *
 * @param key：基础按键动作（mono_click、long、hold、up）和键值
 */
/* ----------------------------------------------------------------------------*/
void key_event_handler(struct key_event *key)
{
    const struct key_callback *p;

    if (multi_clicks_translate(key)) {
        return;
    }
    if (combination_key_translate(key)) {
        return;
    }
    if (key->event == KEY_ACTION_NO_KEY) {
        return;
    }

    //外部需要格外做的处理流程，请通过注册的形式在此处回调
    list_for_each_key_callback(p) {
        if (p->cb_deal == NULL) {
            continue;
        }
        if (p->cb_deal(key)) {
            return;
        }
    }
    app_send_message_from(MSG_FROM_KEY, sizeof(*key), (int *)key);
}