package com.example.serial;

import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;

import android.annotation.SuppressLint;
import android.graphics.Color;
import android.graphics.Paint;
import android.os.Bundle;
import android.text.method.ScrollingMovementMethod;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;

import com.example.serial.databinding.ActivityMainBinding;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;


public class AdcActivity  extends AppCompatActivity {

    // 与串口参数相关的组件
    private ActivityMainBinding binding;
    private Spinner mAdcSpBaud;
    private Spinner mAdcSpSerial;
    private Spinner mAdcSpData;
    private Spinner mAdcSpStop;
    private Spinner mAdcSpParity;
    private Spinner mAdcSpFlow;
    private Spinner mAdcSpOperate;
    private Spinner mAdcSpChannel;

    private Button mAdcBtnSend;
    private Button mAdcBtnOpen;
    private Button mAdcBtnClose;
    private Button mAdcBtnRecv;
    private TextView mAdcRecv;

    // 设置串口的参数
    private String serial = "/dev/ttyS6";
    private long baudRate;
    private int dataBits;
    private double stopBits;
    private int parity;
    private int flowControl; // 0:None, 1:RTS/CTS, 2:XON/XOFF
    private String operate; // 电流or电压
    private String channel;

    // 获取已经设定的值
    String[] serialArray;
    String[] baudArray;
    String[] dataArray;
    String[] stopArray;
    String[] parityArray;
    String[] flowArray;
    String[] operateArray;
    String[] channelArray;
    private AdcControl adcControl;

    private int len = 16;
    private int timmout = 1000;

    boolean turnFlag = false;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_adc);

        adcControl = new AdcControl();
        // 找到控件
        mAdcSpSerial = findViewById(R.id.adc_sp_serial);
        mAdcSpBaud = findViewById(R.id.adc_sp_baud);
        mAdcSpData = findViewById(R.id.adc_sp_data);
        mAdcSpStop = findViewById(R.id.adc_sp_stop);
        mAdcSpParity = findViewById(R.id.adc_sp_parity);
        mAdcSpFlow = findViewById(R.id.adc_sp_flow);
        mAdcSpOperate = findViewById(R.id.adc_sp_operate);
        mAdcSpChannel = findViewById(R.id.adc_sp_channel);

        mAdcBtnSend = findViewById(R.id.adc_btn_send);
        mAdcBtnOpen = findViewById(R.id.adc_btn_open);
        mAdcBtnClose = findViewById(R.id.adc_btn_close);
        mAdcBtnRecv = findViewById(R.id.adc_btn_recv);
        mAdcRecv = findViewById(R.id.adc_txt_rev);

        // 设置并监听下拉列表
        setSpinner(mAdcSpSerial);
        setSpinner(mAdcSpBaud);
        setSpinner(mAdcSpData);
        setSpinner(mAdcSpStop);
        setSpinner(mAdcSpParity);
        setSpinner(mAdcSpFlow);
        setSpinner(mAdcSpOperate);
        setSpinner(mAdcSpChannel);

        // 监听所有的button
        setListener();
        mAdcRecv.setMovementMethod(ScrollingMovementMethod.getInstance());

    }

    @Override
    protected void onDestroy() {
        adcControl.closeComport();
        super.onDestroy();
    }

    private void setSpinner(Spinner spinner){
        ArrayAdapter<CharSequence> adapter;
        int id = spinner.getId();

        if (id == R.id.adc_sp_serial){
            adapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.adc_serial_name, android.R.layout.simple_spinner_item);
        }else if (id == R.id.adc_sp_baud) {
            adapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.baud_rate, android.R.layout.simple_spinner_item);
        } else if (id == R.id.adc_sp_data) {
            adapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.data_bits, android.R.layout.simple_spinner_item);
        } else if (id == R.id.adc_sp_stop) {
            adapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.stop_bits, android.R.layout.simple_spinner_item);
        } else if (id == R.id.adc_sp_parity) {
            adapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.parity, android.R.layout.simple_spinner_item);
        } else if (id == R.id.adc_sp_flow) {
            adapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.flow_control, android.R.layout.simple_spinner_item);
        } else if (id == R.id.adc_sp_operate) {
            adapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.adc_operate, android.R.layout.simple_spinner_item);
        } else if (id == R.id.adc_sp_channel){
            adapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.adc_channel, android.R.layout.simple_spinner_item);
        } else {
            throw new IllegalStateException("Unexpected value: " + spinner.getId());
        }
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_item);
        spinner.setAdapter(adapter);

        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                int spinnerId = spinner.getId();

                if (spinnerId == R.id.adc_sp_serial) {
                    serialArray = getResources().getStringArray(R.array.adc_serial_name);
                    serial = serialArray[position];
                } else if (spinnerId == R.id.adc_sp_baud) {
                    baudArray = getResources().getStringArray(R.array.baud_rate);
                    baudRate = Integer.parseInt(baudArray[position]);
                } else if (spinnerId == R.id.adc_sp_data) {
                    dataArray = getResources().getStringArray(R.array.data_bits);
                    dataBits = Integer.parseInt(dataArray[position]);
                } else if (spinnerId == R.id.adc_sp_stop) {
                    stopArray = getResources().getStringArray(R.array.stop_bits);
                    stopBits = Double.parseDouble(stopArray[position]);
                } else if (spinnerId == R.id.adc_sp_parity) {
                    parityArray = getResources().getStringArray(R.array.parity);
                    if (parityArray[position].equals("偶校验"))
                        parity = 2;
                    else if (parityArray[position].equals("奇校验"))
                        parity = 1;
                    else if (parityArray[position].equals("None"))
                        parity = 0;
                } else if (spinnerId == R.id.adc_sp_flow) {
                    flowArray = getResources().getStringArray(R.array.flow_control);
                    flowControl = position;
                } else if (spinnerId == R.id.adc_sp_operate) {
                    operateArray = getResources().getStringArray(R.array.adc_operate);
                    operate = operateArray[position];
                } else if (spinnerId == R.id.adc_sp_channel) {
                    channelArray = getResources().getStringArray(R.array.adc_channel);
                    channel = channelArray[position];
                } else {
                    throw new IllegalStateException("Unexpected value: " + spinner.getId());
                }
            }
            @Override
            public void onNothingSelected(AdapterView<?> parent) {
            }
        });
    }

    private void setListener(){
        OnClick onClick = new OnClick();
        mAdcBtnSend.setOnClickListener(onClick);
        mAdcBtnOpen.setOnClickListener(onClick);
        mAdcBtnClose.setOnClickListener(onClick);
        mAdcBtnRecv.setOnClickListener(onClick);
    }
    private class OnClick implements View.OnClickListener{
        @Override
        public void onClick(View v) {
            int id = v.getId();
            if (id == R.id.adc_btn_open) {
                if (turnFlag) {
                    Toast.makeText(getApplicationContext(), "串口已打开, 不能重复打开", Toast.LENGTH_SHORT).show();
                }else {
                    int rv = adcControl.openComport(serial, (int) baudRate, dataBits, parity, (int) stopBits, flowControl);
                    if(rv == 1){
                        Toast.makeText(getApplicationContext(), "请添加"+serial+"的权限", Toast.LENGTH_SHORT).show();
                    }else if (rv < 0) {
                        Toast.makeText(getApplicationContext(), "打开串口失败", Toast.LENGTH_SHORT).show();
                    } else {
                        turnFlag = true;
                        Toast.makeText(getApplicationContext(), "成功打开串口"+serial, Toast.LENGTH_SHORT).show();
                    }
                }
            } else if (id == R.id.adc_btn_close){
                if (!turnFlag) {
                    Toast.makeText(getApplicationContext(), "串口已关闭，不能重复关闭", Toast.LENGTH_SHORT).show();
                }else {
                    // 关闭串口
                    int rv = adcControl.closeComport();
                    if (rv < 0) {
                        Toast.makeText(getApplicationContext(), "关闭串口失败", Toast.LENGTH_SHORT).show();
                    } else {
                        turnFlag = false;
                        Toast.makeText(getApplicationContext(), "关闭串口", Toast.LENGTH_SHORT).show();
                    }
                }
            }else if (id == R.id.adc_btn_send) {
                int rv = adcControl.sendToPort(operate, channel);
                if (rv < 0) {
                    Toast.makeText(getApplicationContext(), "发送数据失败！", Toast.LENGTH_SHORT).show();
                }
                Toast.makeText(getApplicationContext(), "发送数据成功", Toast.LENGTH_SHORT).show();
                SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                df.setTimeZone(TimeZone.getTimeZone("GMT+8"));
                String date = df.format(new Date());
                String buf = adcControl.recvFromPort(len, timmout); // 超时时间设置为 1000 ms
                if (buf != null) {
                    String revData = date + "\t"+ "Received: " + buf;
                    mAdcRecv.append("\n" + revData);
                    mAdcRecv.invalidate();
                    mAdcRecv.requestLayout();
                }
            } else if (id == R.id.adc_btn_recv) {
               mAdcRecv.setText(" ");
            }
        }
    }
}