package com.aoleyun.sn.rlog;

import android.annotation.SuppressLint;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Environment;
import android.util.Log;

import androidx.core.content.ContextCompat;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class LogDBManager {
    @SuppressLint("StaticFieldLeak")
    private static LogDBManager sInstance;
    private Context mContext;
    private LogDBHelper mDBHelper;

    private static final String TABLE_NAME = "logtable";
    private static String TAG = "LogDBManager";

    private LogDBManager(Context context) {
        if (context == null) {
            throw new RuntimeException("Context is NULL");
        }
        mContext = context;
        mDBHelper = new LogDBHelper(context);
    }

    public static void init(Context context) {
        if (sInstance == null) {
            sInstance = new LogDBManager(context);
        }
    }

    public static LogDBManager getInstance() {
        if (sInstance == null) {
            throw new IllegalStateException("You must be init LogDBManager first");
        }
        return sInstance;
    }

    public LogDBHelper getDBHelper() {
        if (mDBHelper == null) {
            mDBHelper = new LogDBHelper(mContext);
        }
        return mDBHelper;
    }

    private static final String LOG_CODE_REBOOT = "1001";
    private static final String LOG_CODE_NETWORK = "1002";
    private static final String LOG_CODE_NETCHANGE = "1003";

    private static final String LOG_EVENT_REBOOT = "设备重启";
    private static final String LOG_EVENT_NETWORK = "首次联网";
    private static final String LOG_EVENT_NETCHANGE = "网络改变";
    public static final String LOG_EVENT_BATTERY = "充电改变";

    public void creatRebootLog(String operate, String content) {
        LogBean logBean = new LogBean();
        logBean.setCode(LOG_CODE_REBOOT);
        logBean.setTimestamp(System.currentTimeMillis());
        logBean.setEvent(LOG_EVENT_REBOOT);
        logBean.setOperate(operate);
        logBean.setContent(content);
        saveLog(logBean);
    }

    public void creatNetworktLog(String operate, String content) {
        LogBean logBean = new LogBean();
        logBean.setCode(LOG_CODE_NETWORK);
        logBean.setTimestamp(System.currentTimeMillis());
        logBean.setEvent(LOG_EVENT_NETWORK);
        logBean.setOperate(operate);
        logBean.setContent(content);
        saveLog(logBean);
    }

    public void creatNetChangeLog(String operate, String content) {
        LogBean logBean = new LogBean();
        logBean.setCode(LOG_CODE_NETCHANGE);
        logBean.setTimestamp(System.currentTimeMillis());
        logBean.setEvent(LOG_EVENT_NETCHANGE);
        logBean.setOperate(operate);
        logBean.setContent(content);
        saveLog(logBean);
    }

    public void creatOtherLog(String event, String operate, String content) {
        LogBean logBean = new LogBean();
        logBean.setCode("0000");
        logBean.setTimestamp(System.currentTimeMillis());
        logBean.setEvent(event);
        logBean.setOperate(operate);
        logBean.setContent(content);
        saveLog(logBean);
    }


    public void saveLog(LogBean logBean) {
        SQLiteDatabase db = mDBHelper.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put("code", logBean.getCode());
        values.put("timestamp", logBean.getTimestamp());
        values.put("event", logBean.getEvent());
        values.put("operate", logBean.getOperate());
        values.put("content", logBean.getContent());
        db.insert(TABLE_NAME, null, values);
    }

    public void delete(Integer id) {
        SQLiteDatabase db = mDBHelper.getWritableDatabase();
        db.delete(TABLE_NAME, "id=?", new String[]{id.toString()});
    }

    public void deleteAll() {
        SQLiteDatabase db = mDBHelper.getWritableDatabase();
        db.delete(TABLE_NAME, "", null);
    }

    public void update(LogBean logBean) {
        SQLiteDatabase db = mDBHelper.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put("code", logBean.getCode());
        values.put("timestamp", logBean.getTimestamp());
        values.put("event", logBean.getEvent());
        values.put("operate", logBean.getOperate());
        values.put("content", logBean.getContent());
        db.update(TABLE_NAME, values, "id=?", new String[]{logBean.getId().toString()});
    }

    private long aWeekDayTime = 1000 * 60 * 60 * 24 * 7;

    public List<LogBean> getLogList() {
        List<LogBean> logBeanList = new ArrayList<>();
        SQLiteDatabase db = mDBHelper.getReadableDatabase();
        long time = System.currentTimeMillis() - aWeekDayTime;
        String sql = "select * from " + TABLE_NAME + " where" + " timestamp > " + time;
        Cursor cursor = null;
        try {
            cursor = db.rawQuery(sql, null);
            while (cursor.moveToNext()) {
                LogBean logBean = new LogBean();
                logBean.setId(cursor.getInt(cursor.getColumnIndex("id")));
                logBean.setCode(cursor.getString(cursor.getColumnIndex("code")));
                logBean.setTimestamp(cursor.getLong(cursor.getColumnIndex("timestamp")));
                logBean.setEvent(cursor.getString(cursor.getColumnIndex("event")));
                logBean.setOperate(cursor.getString(cursor.getColumnIndex("operate")));
                logBean.setContent(cursor.getString(cursor.getColumnIndex("content")));
                logBeanList.add(logBean);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (cursor != null) {
                cursor.close();
            }
            db.close();
        }
        return logBeanList;
    }

    public String saveToFile() {
        List<LogBean> logBeanList = getLogList();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy_MM_dd-HH_mm_ss");
        Date date = new Date(System.currentTimeMillis());
        String fileName = sdf.format(date) + " log.txt";
        String filePath = ContextCompat.getExternalFilesDirs(mContext, Environment.DIRECTORY_DOCUMENTS)[0].getAbsolutePath()
                + File.separator + fileName;
        File logFile = new File(filePath);
        if (logFile.exists()) {
            logFile.delete();
        }
        StringBuilder stringBuilder = new StringBuilder();
        for (LogBean logBean : logBeanList) {
            stringBuilder.append(logBean.toLogString()).append("\n");
        }
        byte[] bs = stringBuilder.toString().getBytes();
        try {
            OutputStream out = new FileOutputStream(logFile);
            InputStream is = new ByteArrayInputStream(bs);
            byte[] buff = new byte[1024];
            int len = 0;
            while ((len = is.read(buff)) != -1) {
                out.write(buff, 0, len);
            }
            is.close();
            out.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        Log.e(TAG, "saveToFile: " + logFile.getAbsolutePath());
        return logFile.getAbsolutePath();
    }

}