#include "app_manager.h"
#include "clock.h"
#include "xtell.h"
#include "ui.h"
#include "rgb.h"
#include "event.h"
#include "system.h"
#include "../Drivers/pcf8563.h"

// 外部引用的全局系统状态变量
extern SystemState current_state;
extern volatile u16 ms_tick;

// 本应用私有的时间编辑状态
static u8 time_edit_field = 1;    // 当前聚焦调节的字段 (1:小时, 2:分钟, 3:日, 4:月, 5:年)
static u8 time_edit_blink_on = 1; // 时钟修改时光标闪烁周期状态位

// 声明本应用的生命周期回调函数
static void SetClockApp_OnStart(void);
static void SetClockApp_onRun(void);
static void SetClockApp_onClose(void);
static EventResult SetClockApp_onEvent(SystemEvent *evt);

// 实体化定义时间设置应用控制块 (从 menu_app 的"HORLOGE"选项进入)
WristbandApp set_clock_app = {
    APP_ID_SET_CLOCK,
    "SetClock",
    SetClockApp_OnStart,
    SetClockApp_onRun,
    SetClockApp_onClose,
    SetClockApp_onEvent
};

/**
 * @brief SetClockApp 启动回调
 */
static void SetClockApp_OnStart(void)
{
    time_edit_field = 1;
    time_edit_blink_on = 1;
    current_state = STATE_SET_TIME; // 系统切入时间设置状态

    // FCOB 幻彩灯条双灯珠均显示蓝色常亮 (R=0, G=0, B=180)，进行模式视觉区分
    RGB_Send(0, 0, 180, 0, 0, 180);

    // 振动马达单次短震 50 毫秒，提供触觉反馈
    MOTOR = 1;
    Delay_ms(50);
    MOTOR = 0;

    // 渲染显示时间编辑界面，默认高亮编辑小时字段，消隐位开启
    UI_ShowSetTimePage(current_hour, current_min, current_day, current_month, current_year, current_weekday, time_edit_field, 1);
    XTELL_LOG("[SetClockApp] Started\r\n");
}

/**
 * @brief SetClockApp 轮询主回调
 */
static void SetClockApp_onRun(void)
{
    // ====== 时间设置闪烁动画 (周期 500ms) ======
    u8 blink = (ms_tick / 500) % 2;
    if (blink != time_edit_blink_on)
    {
        time_edit_blink_on = blink;
        // 每次闪烁状态发生变化，只局部刷新正在调节的那个字段，不整屏重绘
        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, time_edit_field, time_edit_blink_on);
    }
}

/**
 * @brief SetClockApp 退出清理回调
 */
static void SetClockApp_onClose(void)
{
    RGB_Send(0, 0, 0, 0, 0, 0); // 关闭灯条
    XTELL_LOG("[SetClockApp] Closed\r\n");
}

/**
 * @brief SetClockApp 接收按键事件处理回调
 */
static EventResult SetClockApp_onEvent(SystemEvent *evt)
{
    if (evt->key_event == KEY_EVENT_UP_CLICK)
    {
        // 短按 ▲ 键增加当前聚焦字段的数值 (各字段独立循环)
        switch (time_edit_field) {
            case 1: current_hour = (current_hour + 1) % 24; break;
            case 2: current_min = (current_min + 1) % 60; break;
            case 3:
                current_day = (current_day >= Days_In_Month(current_year, current_month)) ? 1 : (current_day + 1);
                Clock_RecalcWeekday();
                break;
            case 4:
                current_month = (current_month >= 12) ? 1 : (current_month + 1);
                // 月份变化后，若当前日超出新月份的最大天数，截断到最大天数
                if (current_day > Days_In_Month(current_year, current_month)) {
                    current_day = Days_In_Month(current_year, current_month);
                }
                Clock_RecalcWeekday();
                break;
            default: // 5: 年
                current_year = (current_year >= 99) ? 0 : (current_year + 1);
                if (current_day > Days_In_Month(current_year, current_month)) {
                    current_day = Days_In_Month(current_year, current_month);
                }
                Clock_RecalcWeekday();
                break;
        }
        time_edit_blink_on = 1; // 调值后强制显示 (不处于消隐周期)
        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, time_edit_field, 1);
        return EVENT_HANDLED;
    }
    if (evt->key_event == KEY_EVENT_DOWN_CLICK)
    {
        // 短按 ▼ 键减小当前聚焦字段的数值 (各字段独立循环)
        switch (time_edit_field) {
            case 1: current_hour = (current_hour == 0) ? 23 : (current_hour - 1); break;
            case 2: current_min = (current_min == 0) ? 59 : (current_min - 1); break;
            case 3:
                current_day = (current_day <= 1) ? Days_In_Month(current_year, current_month) : (current_day - 1);
                Clock_RecalcWeekday();
                break;
            case 4:
                current_month = (current_month <= 1) ? 12 : (current_month - 1);
                if (current_day > Days_In_Month(current_year, current_month)) {
                    current_day = Days_In_Month(current_year, current_month);
                }
                Clock_RecalcWeekday();
                break;
            default: // 5: 年
                current_year = (current_year == 0) ? 99 : (current_year - 1);
                if (current_day > Days_In_Month(current_year, current_month)) {
                    current_day = Days_In_Month(current_year, current_month);
                }
                Clock_RecalcWeekday();
                break;
        }
        time_edit_blink_on = 1; // 调值后强制显示 (不处于消隐周期)
        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, time_edit_field, 1);
        return EVENT_HANDLED;
    }
    if (evt->key_event == KEY_EVENT_CONFIRM_LONG)
    {
        // 长按 ■ 确认键切换调节字段 (小时 -> 分钟 -> 日 -> 月 -> 年 -> 循环回小时)
        time_edit_field = (time_edit_field >= 5) ? 1 : (time_edit_field + 1);
        time_edit_blink_on = 1; // 切换焦点后所有字段都应处于可见状态
        // 全部字段各局部刷新一次，避免切换前正处于消隐周期的那个字段停留在涂黑状态
        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, 1, 1);
        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, 2, 1);
        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, 3, 1);
        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, 4, 1);
        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, 5, 1);
        return EVENT_HANDLED;
    }
    if (evt->key_event == KEY_EVENT_CONFIRM_CLICK)
    {
        // 短按 ■ 确认键保存最新时间与日期配置，退出到主菜单 (父 App)
        current_state = STATE_PAIR_MENU;

#if USE_PCF8563
        // 同步将最新时间与日期 (含算好的星期) 一次性写入 PCF8563 芯片寄存器
        PCF8563_WriteDateTime(current_hour, current_min, 0, current_day, current_month, current_year, current_weekday);
#endif

        // 退出短振反馈
        MOTOR = 1; Delay_ms(50); MOTOR = 0;

        AppManager_SwitchToForeground(&menu_app);
        return EVENT_HANDLED;
    }
    return EVENT_HANDLED; // 在时间设置模式下屏蔽拦截其他一切无关按键事件
}