package com.getui.syncalendar;

import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Color;
import android.net.Uri;
import android.provider.CalendarContract;
import android.text.TextUtils;
import android.util.Log;

import com.facebook.react.bridge.ReadableArray;

import java.util.Calendar;
import java.util.TimeZone;


public class CalendarReminderUtils {
    private static final String TAG = "CalendarReminderUtils";

    private static String CALENDER_URL = "content://com.android.calendar/calendars";
    private static String CALENDER_EVENT_URL = "content://com.android.calendar/events";
    private static String CALENDER_REMINDER_URL = "content://com.android.calendar/reminders";

    private static String CALENDARS_NAME = "oa-baobao";
    private static String CALENDARS_ACCOUNT_NAME = "baobao@getui.com";
    private static String CALENDARS_ACCOUNT_TYPE = "com.getui.baobao";
    private static String CALENDARS_DISPLAY_NAME = "baobao账户";

    private static Context context;


    public CalendarReminderUtils(Context mContext) {
        context = mContext;
    }

    /**
     * 检查是否已经添加了日历账户，如果没有添加先添加一个日历账户再查询
     * 获取账户成功返回账户id，否则返回-1
     */
    private static int checkAndAddCalendarAccount(Context context) {
        int oldId = checkCalendarAccount(context);
        if (oldId >= 0) {
            return oldId;
        } else {
            long addId = addCalendarAccount(context);
            if (addId >= 0) {
                return checkCalendarAccount(context);
            } else {
                return -1;
            }
        }
    }

    /**
     * 检查是否存在现有账户，存在则返回账户id，否则返回-1
     */
    private static int checkCalendarAccount(Context context) {
        Cursor userCursor = context.getContentResolver().query(Uri.parse(CALENDER_URL), null, null, null, null);
        try {
            if (userCursor == null) { //查询返回空值
                return -1;
            }
            int count = userCursor.getCount();
            if (count > 0) { //存在现有账户，取第一个账户的id返回
                userCursor.moveToFirst();
                return userCursor.getInt(userCursor.getColumnIndex(CalendarContract.Calendars._ID));
            } else {
                return -1;
            }
        } finally {
            if (userCursor != null) {
                userCursor.close();
            }
        }
    }

    /**
     * 添加日历账户，账户创建成功则返回账户id，否则返回-1
     */
    private static long addCalendarAccount(Context context) {
        TimeZone timeZone = TimeZone.getDefault();
        ContentValues value = new ContentValues();
        value.put(CalendarContract.Calendars.NAME, CALENDARS_NAME);
        value.put(CalendarContract.Calendars.ACCOUNT_NAME, CALENDARS_ACCOUNT_NAME);
        value.put(CalendarContract.Calendars.ACCOUNT_TYPE, CALENDARS_ACCOUNT_TYPE);
        value.put(CalendarContract.Calendars.CALENDAR_DISPLAY_NAME, CALENDARS_DISPLAY_NAME);
        value.put(CalendarContract.Calendars.VISIBLE, 1);
        value.put(CalendarContract.Calendars.CALENDAR_COLOR, Color.BLUE);
        value.put(CalendarContract.Calendars.CALENDAR_ACCESS_LEVEL, CalendarContract.Calendars.CAL_ACCESS_OWNER);
        value.put(CalendarContract.Calendars.SYNC_EVENTS, 1);
        value.put(CalendarContract.Calendars.CALENDAR_TIME_ZONE, timeZone.getID());
        value.put(CalendarContract.Calendars.OWNER_ACCOUNT, CALENDARS_ACCOUNT_NAME);
        value.put(CalendarContract.Calendars.CAN_ORGANIZER_RESPOND, 0);

        Uri calendarUri = Uri.parse(CALENDER_URL);
        calendarUri = calendarUri.buildUpon()
                .appendQueryParameter(CalendarContract.CALLER_IS_SYNCADAPTER, "true")
                .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_NAME, CALENDARS_ACCOUNT_NAME)
                .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_TYPE, CALENDARS_ACCOUNT_TYPE)
                .build();

        Uri result = context.getContentResolver().insert(calendarUri, value);
        long id = result == null ? -1 : ContentUris.parseId(result);
        return id;
    }

    /**
     * 添加日历事件
     * <p>
     * 100: '系统版本太低，不支持设置日历',
     * 101: '日历打开失败，请稍后重试',
     * 102: '不允许使用日历,请在设置中允许此App使用日历',
     * 103: '已同步',
     * 104: '参数错误',
     * 200: '会议添加成功',
     */
    public static String addCalendarEvent(String id, String title, String location, long reminderTime, long endTime, ReadableArray previousDate) {

        if (context == null) {
            return "100";
        }


        int calId = checkAndAddCalendarAccount(context); //获取日历账户的id
        if (calId < 0) { //获取账户id失败直接返回，添加日历事件失败
            return "101";
        }

        // 如果id事件已存在,删除重写
        if (queryCalendarEvent(id)) {
            Log.d(TAG, "event exist");
            deleteCalendarEvent(id);
        }


        //添加日历事件
        Calendar mCalendar = Calendar.getInstance();

        mCalendar.setTimeInMillis(reminderTime);//设置开始时间
        long start = mCalendar.getTime().getTime();

        mCalendar.setTimeInMillis(endTime);
        long end = mCalendar.getTime().getTime();

        ContentValues event = new ContentValues();
        event.put("calendar_id", calId); //插入账户的id
        event.put("title", title);
        event.put("description", id);
        event.put(CalendarContract.Events.EVENT_LOCATION, location);
        event.put(CalendarContract.Events.DTSTART, start);
        event.put(CalendarContract.Events.DTEND, end);
        event.put(CalendarContract.Events.HAS_ALARM, 1);//设置有闹钟提醒
        event.put(CalendarContract.Events.EVENT_TIMEZONE, "Asia/Shanghai");//这个是时区，必须有
        Uri newEvent = context.getContentResolver().insert(Uri.parse(CALENDER_EVENT_URL), event); //添加事件
        if (newEvent == null) { //添加日历事件失败直接返回
            return "103";
        }


        if (previousDate == null || previousDate.size() == 0) {
            Log.d(TAG, "previousDate is empty or invalid");
            return "200";
        }
        //事件提醒的设定
        for (int i = 0; i < previousDate.size(); i++) {
            ContentValues values = new ContentValues();
            values.put(CalendarContract.Reminders.EVENT_ID, ContentUris.parseId(newEvent));
            values.put(CalendarContract.Reminders.MINUTES, previousDate.getInt(i));// 提前previousDate天有提醒
            values.put(CalendarContract.Reminders.METHOD, CalendarContract.Reminders.METHOD_ALERT);
            Uri uri = context.getContentResolver().insert(Uri.parse(CALENDER_REMINDER_URL), values);
            if (uri == null) { //添加事件提醒失败直接返回
                return "104";
            }
        }

        return "200";
    }


    /**
     * 查询日历事件
     */
    public static boolean queryCalendarEvent(String id) {

        if (context == null) {
            return false;
        }
        Cursor eventCursor = context.getContentResolver().query(Uri.parse(CALENDER_EVENT_URL), null, null, null, null);
        try {
            if (eventCursor == null) { //查询返回空值
                return false;
            }
            if (eventCursor.getCount() > 0) {
                for (eventCursor.moveToFirst(); !eventCursor.isAfterLast(); eventCursor.moveToNext()) {
                    String eventId = eventCursor.getString(eventCursor.getColumnIndex(CalendarContract.Events.DESCRIPTION));
                    if (eventId != null) {
                        if (eventId.equals(id)) {
                            Log.d(TAG, "id:" + eventId);
                            return true;
                        }
                    }
                }
            }
        } finally {
            if (eventCursor != null) {
                eventCursor.close();
            }
        }
        return false;

    }

    /**
     * 删除日历事件
     */
    public static void deleteCalendarEvent(String description) {
        if (context == null) {
            return;
        }
        Cursor eventCursor = context.getContentResolver().query(Uri.parse(CALENDER_EVENT_URL), null, null, null, null);
        try {
            if (eventCursor == null) { //查询返回空值
                return;
            }
            if (eventCursor.getCount() > 0) {
                //遍历所有事件，找到title跟需要查询的title一样的项
                for (eventCursor.moveToFirst(); !eventCursor.isAfterLast(); eventCursor.moveToNext()) {
                    String eventDescription = eventCursor.getString(eventCursor.getColumnIndex(CalendarContract.Events.DESCRIPTION));
                    if (!TextUtils.isEmpty(description) && description.equals(eventDescription)) {
                        int id = eventCursor.getInt(eventCursor.getColumnIndex(CalendarContract.Calendars._ID));//取得id
                        Uri deleteUri = ContentUris.withAppendedId(Uri.parse(CALENDER_EVENT_URL), id);
                        int rows = context.getContentResolver().delete(deleteUri, null, null);
                        if (rows == -1) { //事件删除失败
                            return;
                        }
                    }
                }
            }
        } finally {
            if (eventCursor != null) {
                eventCursor.close();
            }
        }
    }

}