package com.hdl.photovoltaic.other;

import android.Manifest;
import android.bluetooth.BluetoothDevice;

import androidx.annotation.RequiresPermission;

import com.hdl.photovoltaic.HDLApp;
import com.hdl.photovoltaic.utils.AppManagerUtils;
import com.hdl.photovoltaic.utils.BleWifiConfiguratorUtils;
import com.hdl.photovoltaic.utils.PermissionUtils;

import java.util.List;

/**
 * 蓝牙逻辑
 */
public class HdlBluetoothLogic {
    private static volatile HdlBluetoothLogic sHdlBluetoothLogic;
    private BleWifiConfiguratorUtils configurator;

    /**
     * 获取当前对象
     *
     * @return HdlAccountLogic
     */
    public static synchronized HdlBluetoothLogic getInstance() {
        if (sHdlBluetoothLogic == null) {
            synchronized (HdlBluetoothLogic.class) {
                if (sHdlBluetoothLogic == null) {
                    sHdlBluetoothLogic = new HdlBluetoothLogic();
                    // 在构造方法中初始化configurator
                    sHdlBluetoothLogic.initConfigurator();
                }
            }

        }
        return sHdlBluetoothLogic;
    }

    /**
     * 实例方法，初始化configurator
     */
    private void initConfigurator() {
        this.configurator = new BleWifiConfiguratorUtils(HDLApp.getInstance());
    }

    /**
     * 扫描设备
     */
    @RequiresPermission(Manifest.permission.BLUETOOTH_SCAN)
    public void scanDevices(BleWifiConfiguratorUtils.ScanListener listener) {
        if (this.configurator == null) {
            return;
        }
        this.configurator.startScan(listener);
    }

    /**
     * 连接设备
     *
     * @param deviceAddress 目标设备BluetoothDevice
     * @param listener      回调监听
     */
    @RequiresPermission(Manifest.permission.BLUETOOTH_CONNECT)
    public void connect(String deviceAddress, BleWifiConfiguratorUtils.ConnectListener listener) {
        if (this.configurator == null) {
            return;
        }
        this.configurator.connect(deviceAddress, listener);
    }

    /**
     * 发送配置信息
     *
     * @param str      发送数据
     * @param listener 回调监听
     */
    @RequiresPermission(Manifest.permission.BLUETOOTH_CONNECT)
    public void sendConfig(String str, BleWifiConfiguratorUtils.WriteListener listener) {
        if (this.configurator == null) {
            return;
        }
        this.configurator.writeCredentials(str, listener);
    }

    /**
     * 停止扫描
     */
    @RequiresPermission(Manifest.permission.BLUETOOTH_SCAN)
    public void stopScan() {
        if (this.configurator == null) {
            return;
        }
        this.configurator.stopScan();
    }

    /**
     * 断开设备连接
     * * @param deviceAddress 目标设备BluetoothDevice
     */
    public void disconnect(String deviceAddress) {
        if (this.configurator == null) {
            return;
        }
        this.configurator.disconnect();
    }

    /**
     * 检查蓝牙连接状态
     *
     * @param deviceAddress 目标设备BluetoothDevice
     * @return true表示连接成功，false表示连接失败
     */
    public boolean bluetoothStatusCheck(String deviceAddress) {
        if (this.configurator == null) {
            return false;
        }
        return this.configurator.getBluetoothStatus();
    }

    /**
     * 检查蓝牙是否开启
     *
     * @return true表示开启，false表示关闭
     */
    public boolean checkBluetoothEnabled() {
        if (this.configurator == null) {
            return false;
        }
        return this.configurator.checkBluetoothEnabled();
    }

    /**
     * 释放资源（在 Activity/Fragment 销毁时调用）
     */
    @RequiresPermission(Manifest.permission.BLUETOOTH_SCAN)
    public void release() {
        if (this.configurator == null) {
            return;
        }
        this.configurator.release();
    }

    /**
     * 获取权限状态( 权限检查结果对比)
     * 检查是否拥有必要的运行时权限（Android 12+ 需动态申请新权限）
     *
     * @return true表示拥有所有必要的权限，false表示缺少权限，也不会弹窗，必须引导用户去设置页面手动开启
     */
    public boolean getMissingPermissions() {
        if (this.configurator == null) {
            return false;
        }
        List<String> missingPermissions = this.configurator.getMissingPermissions();
        if (missingPermissions.isEmpty()) {
            return true;
        }
        for (int i = 0; i < missingPermissions.size(); i++) {
            int permissionState = PermissionUtils.getPermissionStateV2(AppManagerUtils.getAppManager().getLastActivity(), missingPermissions.get(i));
            if (permissionState == 2) {
                return false;
            }
        }
        if (AppManagerUtils.getAppManager().getLastActivity() != null) {
            AppManagerUtils.getAppManager().getLastActivity().requestPermissions(missingPermissions.toArray(new String[0]), 200);
        }
        return true;
    }
}