package com.shlb.comb.adapter;

import android.bluetooth.BluetoothDevice;
import android.content.Context;
import android.os.ParcelUuid;
import android.util.SparseArray;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.blakequ.bluetooth_manager_lib.device.BluetoothLeDevice;
import com.blakequ.bluetooth_manager_lib.scan.bluetoothcompat.ScanRecordCompat;
import com.blakequ.bluetooth_manager_lib.util.ByteUtils;
import com.shlb.comb.R;

import java.util.List;
import java.util.Map;


public class HomeDeviceListAdapter extends BaseArrayListAdapter<BluetoothLeDevice> {
    private setOnItemButtonClick onItemButtonClick;


    private int scrodKey;
    private int expandedPosition = -1;

    public HomeDeviceListAdapter(Context context, setOnItemButtonClick onItemButtonClick) {
        super(context);
        this.onItemButtonClick = onItemButtonClick;
    }

    public void updateConfig(int scrodKey) {
        this.scrodKey = scrodKey;
    }

    @Override
    public View getView(int position, View view, ViewGroup parent) {
        final ViewHolder viewHolder;
        // General ListView optimization code.
        if (view == null) {
            view = mInflater.inflate(R.layout.home_list_bluetooth_item, null);
            viewHolder = new ViewHolder();
            viewHolder.deviceAddress = (TextView) view.findViewById(R.id.device_address);
            viewHolder.deviceName = (TextView) view.findViewById(R.id.device_name);
            viewHolder.rssi = (TextView) view.findViewById(R.id.rssi);
            viewHolder.deviceIcon = (ImageView) view.findViewById(R.id.device_icon);
            viewHolder.ivDown = (ImageView) view.findViewById(R.id.iv_down);
            viewHolder.llMainContent = (LinearLayout) view.findViewById(R.id.ll_main_content);
            viewHolder.llMoreInfo = (LinearLayout) view.findViewById(R.id.ll_more_info);
            viewHolder.tvDeviceType = (TextView) view.findViewById(R.id.tv_device_type);
            viewHolder.tvAdvType = (TextView) view.findViewById(R.id.tv_adv_type);
            viewHolder.tvFlags = (TextView) view.findViewById(R.id.tv_flags);
            viewHolder.tvLocalName = (TextView) view.findViewById(R.id.tv_local_name);
            viewHolder.tvTxPower = (TextView) view.findViewById(R.id.tv_tx_power);
            viewHolder.tvServiceUuids = (TextView) view.findViewById(R.id.tv_service_uuids);
            viewHolder.tvServiceData = (TextView) view.findViewById(R.id.tv_service_data);
            viewHolder.tvManufacturerData = (TextView) view.findViewById(R.id.tv_manufacturer_data);

            view.findViewById(R.id.conn_btn).setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    onItemButtonClick.buttonClick(view, position);
                }
            });
            view.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) view.getTag();
        }

        final BluetoothLeDevice device = (BluetoothLeDevice) getItem(position);
        final String deviceName = device.getName();
        final String deviceAddress = device.getAddress();
        final double rssi = device.getRssi();


        if (deviceName != null && deviceName.length() > 0) {
            viewHolder.deviceName.setText(deviceName);
        } else {
            viewHolder.deviceName.setText(R.string.unknown_device);
        }
        if (deviceAddress != null && deviceAddress.length() > 0) {
            viewHolder.deviceAddress.setText(deviceAddress);
        }
        if (Math.abs(rssi) > 0) {
            viewHolder.rssi.setText("-" + rssi + "dBm");
        }

        if (expandedPosition == position) {
            viewHolder.llMoreInfo.setVisibility(View.VISIBLE);
            viewHolder.ivDown.setRotation(180);
            populateMoreInfo(viewHolder, device);
        } else {
            viewHolder.llMoreInfo.setVisibility(View.GONE);
            viewHolder.ivDown.setRotation(0);
        }

        viewHolder.llMainContent.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (expandedPosition == position) {
                    expandedPosition = -1;
                } else {
                    expandedPosition = position;
                }
                notifyDataSetChanged();
            }
        });


        return view;
    }

    private void populateMoreInfo(ViewHolder holder, BluetoothLeDevice device) {
        holder.tvDeviceType.setText("设备类型: " + getDeviceType(device));

        ScanRecordCompat record = ScanRecordCompat.parseFromBytes(device.getScanRecord());
        if (record != null) {
            holder.tvAdvType.setText("广播类型: Legacy");
            holder.tvFlags.setText("标志 (Flags): " + getFlags(record));
            holder.tvLocalName.setText("完整本地名称: " + (record.getDeviceName() != null ? record.getDeviceName() : "无"));
            
            int txPower = record.getTxPowerLevel();
            holder.tvTxPower.setText("发射功率: " + (txPower == Integer.MIN_VALUE ? "无" : txPower + " dBm"));

            List<ParcelUuid> uuids = record.getServiceUuids();
            if (uuids != null && !uuids.isEmpty()) {
                StringBuilder sb = new StringBuilder("服务 UUID: ");
                for (ParcelUuid uuid : uuids) {
                    sb.append(uuid.toString()).append("\n");
                }
                holder.tvServiceUuids.setVisibility(View.VISIBLE);
                holder.tvServiceUuids.setText(sb.toString().trim());
            } else {
                holder.tvServiceUuids.setVisibility(View.GONE);
            }

            Map<ParcelUuid, byte[]> serviceData = record.getServiceData();
            if (serviceData != null && !serviceData.isEmpty()) {
                StringBuilder sb = new StringBuilder("服务数据: ");
                for (Map.Entry<ParcelUuid, byte[]> entry : serviceData.entrySet()) {
                    sb.append(entry.getKey().toString()).append(": ")
                      .append(ByteUtils.byteArrayToHexString(entry.getValue())).append("\n");
                }
                holder.tvServiceData.setVisibility(View.VISIBLE);
                holder.tvServiceData.setText(sb.toString().trim());
            } else {
                holder.tvServiceData.setVisibility(View.GONE);
            }

            holder.tvManufacturerData.setText("厂商数据: " + getManufacturerData(record));
        } else {
            holder.tvAdvType.setText("广播类型: 无");
            holder.tvFlags.setText("标志 (Flags): 无");
            holder.tvLocalName.setText("完整本地名称: 无");
            holder.tvTxPower.setText("发射功率: 无");
            holder.tvServiceUuids.setVisibility(View.GONE);
            holder.tvServiceData.setVisibility(View.GONE);
            holder.tvManufacturerData.setText("厂商数据: 无");
        }
    }

    private String getDeviceType(BluetoothLeDevice device) {
        int type = device.getDevice().getType();
        switch (type) {
            case BluetoothDevice.DEVICE_TYPE_CLASSIC:
                return "仅经典蓝牙 (Classic)";
            case BluetoothDevice.DEVICE_TYPE_LE:
                return "仅低功耗蓝牙 (LE)";
            case BluetoothDevice.DEVICE_TYPE_DUAL:
                return "双模 (Dual Mode)";
            default:
                return "未知";
        }
    }

    private String getFlags(ScanRecordCompat record) {
        int flags = record.getAdvertiseFlags();
        if (flags == -1) return "无";
        StringBuilder sb = new StringBuilder();
        if ((flags & 0x01) != 0) sb.append("LE 有限可发现模式, ");
        if ((flags & 0x02) != 0) sb.append("LE 普通可发现模式, ");
        if ((flags & 0x04) != 0) sb.append("不支持 BR/EDR, ");
        if ((flags & 0x08) != 0) sb.append("控制器支持 LE 和 BR/EDR, ");
        if ((flags & 0x10) != 0) sb.append("主机支持 LE 和 BR/EDR, ");
        if (sb.length() > 2) sb.setLength(sb.length() - 2);
        return sb.toString();
    }

    private String getManufacturerData(ScanRecordCompat record) {
        SparseArray<byte[]> data = record.getManufacturerSpecificData();
        if (data == null || data.size() == 0) return "无";
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < data.size(); i++) {
            int id = data.keyAt(i);
            byte[] bytes = data.valueAt(i);
            sb.append(String.format("ID: 0x%04X, 数据: ", id));
            sb.append(ByteUtils.byteArrayToHexString(bytes));
            if (i < data.size() - 1) sb.append("\n");
        }
        return sb.toString();
    }

    public double calculateAccuracy(final int txPower, final double rssi) {
        if (rssi == 0) {
            return 0; // if we cannot determine accuracy, return -1.
        }

        final double ratio = rssi * 1.0 / txPower;
        if (ratio < 1.0) {
            return Math.pow(ratio, 10);
        } else {
            return (0.89976) * Math.pow(ratio, 7.7095) + 0.111;
        }
    }

    static class ViewHolder {
        TextView deviceName;
        TextView deviceAddress;
        TextView rssi;
        ImageView deviceIcon;
        ImageView ivDown;
        LinearLayout llMainContent;
        LinearLayout llMoreInfo;
        TextView tvDeviceType;
        TextView tvAdvType;
        TextView tvFlags;
        TextView tvLocalName;
        TextView tvTxPower;
        TextView tvServiceUuids;
        TextView tvServiceData;
        TextView tvManufacturerData;

    }

    public interface setOnItemButtonClick {
        void buttonClick(View view, int position);
    }
}