package com.ttstd.dialer.receiver;

import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Build;

import androidx.core.app.NotificationCompat;

import com.ttstd.dialer.activity.alarm.AlarmAlertActivity;
import com.ttstd.dialer.alarmclock.AlarmManagerHelper;
import com.ttstd.dialer.alarmclock.AlarmRepeatConfig;
import com.ttstd.dialer.alarmclock.AlarmTimeCalculator;

public class AlarmReceiver extends BroadcastReceiver {
    private static final String CHANNEL_ID = "alarm_channel";

    @Override
    public void onReceive(Context context, Intent intent) {
        // 1. 执行原有的响铃和弹出通知/界面的逻辑
        // (调用上一次回答中创建的通知栏或全屏拉起逻辑)
        showAlarmNotification(context);

        // 2. 核心：动态轮转，实现重复闹钟
        scheduleNextRepeatAlarm(context);
    }

    private void scheduleNextRepeatAlarm(Context context) {
        // 从 SharedPreferences 中取出用户之前保存的闹钟时间和重复设置
        // 实际开发中此处可以替换为 SQLite 数据库
        SharedPreferences sp = context.getSharedPreferences("AlarmPrefs", Context.MODE_PRIVATE);
        int hour = sp.getInt("alarm_hour", 8);
        int minute = sp.getInt("alarm_minute", 0);
        int repeatType = sp.getInt("repeat_type", AlarmRepeatConfig.REPEAT_ONCE);

        // 如果是“只响一次”，响完就结束了，不需要再设置
        if (repeatType == AlarmRepeatConfig.REPEAT_ONCE) {
            return;
        }

        // 如果是 每天 或 周一至周五
        AlarmRepeatConfig config = new AlarmRepeatConfig(repeatType);

        // 重新计算下一次的时间（由于此时已经过了当前闹钟点，计算出的必定是未来的时间）
        long nextTriggerTime = AlarmTimeCalculator.calculateNextAlarmTime(hour, minute, config);

        // 再次调用第一步写好的精准闹钟设置工具，埋下新的定时炸弹
        AlarmManagerHelper.setExactAlarm(context, nextTriggerTime);
    }

    private void showAlarmNotification(Context context) {
        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        if (notificationManager == null) return;

        // 1. 创建通知渠道 (Android 8.0+)
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel channel = new NotificationChannel(
                    CHANNEL_ID, "闹钟响铃", NotificationManager.IMPORTANCE_HIGH);
            channel.setDescription("用于展示闹钟响铃界面");
            channel.enableLights(true);
            channel.setBypassDnd(true); // 绕过免打扰
            notificationManager.createNotificationChannel(channel);
        }

        // 2. 构建点击通知或全屏弹出的 Intent
        Intent alertIntent = new Intent(context, AlarmAlertActivity.class);
        alertIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);

        int flags = Build.VERSION.SDK_INT >= Build.VERSION_CODES.M ?
                PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE :
                PendingIntent.FLAG_UPDATE_CURRENT;
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, alertIntent, flags);

        // 3. 构建高优先级通知（兼容 Android 10+ 后台全屏拉起）
        NotificationCompat.Builder builder = new NotificationCompat.Builder(context, CHANNEL_ID)
                .setSmallIcon(android.R.drawable.ic_lock_idle_alarm)
                .setContentTitle("闹钟响了")
                .setContentText("时间到了，快起床！")
                .setPriority(NotificationCompat.PRIORITY_HIGH)
                .setCategory(NotificationCompat.CATEGORY_ALARM)
                .setAutoCancel(true)
                .setFullScreenIntent(pendingIntent, true); // 核心：锁屏时直接拉起 Activity

        notificationManager.notify(1, builder.build());
    }
}