package com.se.simu.service;

import cn.hutool.json.JSONArray;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.se.simu.config.PropertiesConfig;
import com.se.simu.domain.dto.GeDb;
import com.se.simu.domain.vo.QueryVo;
import com.se.simu.helper.*;
import lombok.extern.slf4j.Slf4j;
import org.gdal.ogr.Geometry;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

@Slf4j
@Service
@SuppressWarnings("ALL")
public class DbService {
    @Resource
    PropertiesConfig config;

    @Resource
    RestTemplate restTemplate;

    @Resource
    GedbService gedbService;

    private final static String INFO_KEY = "db_info_key";

    private final static String CONFIG_KEY = "db_config_key";

    private final static String PUBLIC_KEY = "db_public_key";

    private final static long ONE_DAY = 24 * 60 * 60 * 1000;

    // helper.service(req, res, uri);
    public String info() throws Exception {
        Object obj = CaffeineHelper.get(INFO_KEY);
        if (obj instanceof String) {
            return (String) obj;
        }

        String token = gedbService.getToken();
        GeDb db = gedbService.getGeDb(token);
        String date = StringHelper.YMD_FORMAT.format(new Date(System.currentTimeMillis() - ONE_DAY));
        String url = String.format("%sgeo-service/statis/layer/data/info?dbid=%s&token=%s&caldate=%s", config.getHost(), db.getDbid(), token, date);

        String rs = restTemplate.getForObject(url, String.class);
        if (!StringHelper.isEmpty(rs)) {
            CaffeineHelper.put(INFO_KEY, rs);
        }

        return rs;
    }

    public String getConfig() throws Exception {
        Object obj = CaffeineHelper.get(CONFIG_KEY);
        if (obj instanceof String) {
            return (String) obj;
        }

        String token = gedbService.getToken();
        GeDb db = gedbService.getGeDb(token);
        String url = String.format("%sgeo-service/entitydb/map/config?dbid=%s&token=%s", config.getHost(), db.getDbid(), token);

        String rs = restTemplate.getForObject(url, String.class);
        if (!StringHelper.isEmpty(rs)) {
            CaffeineHelper.put(CONFIG_KEY, rs);
        }

        return rs;
    }

    public void query(QueryVo vo, HttpServletRequest req, HttpServletResponse res) throws Exception {
        String token = gedbService.getToken();
        GeDb db = gedbService.getGeDb(token);
        String url = config.getHost() + "geo-service/entitydbdata/layer/query";

        Map<String, Object> map = new HashMap<>(6);
        map.put("token", token);
        map.put("dbid", db.getDbid());
        map.put("layerid", vo.getLayerid());
        //map.put("returnCountOnly", true);
        //map.put("inSR", 4326);
        map.put("containCount", vo.getContainCount());
        map.put("count", vo.getCount());
        map.put("start", vo.getStart());
        map.put("querytype", vo.getReturnGeom() ? getQueryType(vo.getLayerid()) : "entity");
        if (!StringHelper.isEmpty(vo.getWhere())) {
            String where = RsaHelper.encrypt(getPublicKey(), vo.getWhere());
            map.put("where", where);
        }
        if (!StringHelper.isEmpty(vo.getGeometry())) {
            Geometry g = Geometry.CreateFromWkt(vo.getGeometry());
            if (null != vo.getBuffer()) {
                g = g.Buffer(vo.getBuffer() * 0.00000899928);
            }

            map.put("geometry", g.ExportToWkt());
            map.put("inSR", 4326);
            map.put("outSR", 4326);
        }

        String rs = restTemplate.postForObject(url, map, String.class);
        WebHelper.writeStr2Page(res, HttpStatus.OK, rs);
    }

    private String getPublicKey() {
        Object obj = CaffeineHelper.get(PUBLIC_KEY);
        if (obj instanceof String) {
            return (String) obj;
        }

        JSONObject jsonObject = restTemplate.getForObject(config.getHost() + "geo-service/setting/publickey", JSONObject.class);

        String key = jsonObject.getStr("data");
        if (!StringHelper.isEmpty(key)) {
            CaffeineHelper.put(PUBLIC_KEY, key);
        }

        return key;
    }

    private String getQueryType(String layerid) {
        try {
            String json = getConfig();
            JSONObject obj = JSONUtil.parseObj(json);

            JSONArray layers = obj.getJSONObject("data").getJSONArray("layers");
            for (int i = 0, c = layers.size(); i < c; i++) {
                JSONObject layer = layers.getJSONObject(i);
                if (layerid.equals(layer.getStr("id"))) {
                    return GedbService.getQueryType(layer);
                }
            }
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
        }

        return "entity";
    }
}