package osm.surveyor.task.city;
 
import java.io.IOException;
import java.io.InputStream;
 
import org.springframework.boot.CommandLineRunner;
import org.springframework.core.io.ClassPathResource;
import org.springframework.stereotype.Component;
 
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
 
import lombok.RequiredArgsConstructor;
import osm.surveyor.task.city.model.CitiesJson;
import osm.surveyor.task.city.model.City;
import osm.surveyor.task.city.model.CityJson;
import osm.surveyor.task.util.Geojson;
import osm.surveyor.task.util.Point;
 
@RequiredArgsConstructor
@Component
public class DataLoader implements CommandLineRunner {
	private final CityRepository repository;
	
	@Override
	public void run(String... args) throws Exception {
		
        // 「src/main/resources/static/city/index.json」を読み込む
        try (InputStream is = new ClassPathResource("static/city/index.json").getInputStream()) {
        	CitiesJson pojo = new ObjectMapper().readValue(is, CitiesJson.class);
        	String site = pojo.getSite();
        	for (CityJson citiesJson : pojo.getList()) {
        		City city = new City();
        		city.setSite(site);
        		city.setCitycode(citiesJson.getCode());
        		city.setCityname(citiesJson.getName());
        		city.setFolder(citiesJson.getPath());
 
        		Point coordinates = citiesJson.toCoordinates();
        		city.setLng(coordinates.getLng());
        		city.setLat(coordinates.getLat());
        		
        		repository.save(city);
        		storeTask(city);
        	}
        }
	}
	
	private void storeTask(City city) throws IOException {
		String folder = city.getFolder();
		String path = "static/city/"+ folder +"/bldg/index.geojson";
        try (InputStream is = new ClassPathResource(path).getInputStream()) {
        	ObjectMapper mapper = new ObjectMapper();
        	JsonNode node = mapper.readTree(is);
        	Geojson geojson = new Geojson();
        	geojson.parse(node);
        	
        	// TODO:
        	System.out.println("["+ path + "] " + geojson.toString());
        }
        
		// TODO:
		
	}
}