package scripts;

import java.util.*;
import java.io.*;
import java.nio.file.*;
import java.nio.charset.StandardCharsets;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.text.lookup.StringLookup;
import org.apache.commons.text.StringSubstitutor;

import fr.ifremer.isisfish.entities.*;
import fr.ifremer.isisfish.map.GeoTools;

/**
 * some neccessary reusable helper functions, also some default values
 *
 * Auteur: PHAN Tuan Anh, 2022
 */
public final class PTAtoolbox {

	/** choisir la région pour modifier */
	public final static String REGION_NAME = "playground";
	/** mettre le dossier ici */
	public final static String DATA_FOLDER = "C:/Users/taphan/Documents/code_R_ISIS/isis-r-scripts-for-westmed2022/output/for_region";
	public final static String SEPARATOR = " @ "; // separateur des champs
	public final static String TRAWLER_GEARS = "OTB|OTM|OTT"; // regex
	public final static String PORT_FRA = "fr(CMT|CST|GPV|GST|XMA|XST)"; // regex
	public final static String PORT_ESP = "es(BAR|GAR|LEI|PMI|RSA|SCR|SPO|TAR|VMG)"; // regex
	public final static String VESSEL_LENGTH = "VL(0612|1218|1824|2440)"; // regex
	public final static String AUTO_CMT = "this entity is automatically generated by script, no info available here";

	/** read text file as list, text is a vector of values separated by line break */
	public static List<String> readListTxt(String fileName) throws IOException {
		return Files.readAllLines(Paths.get(fileName), StandardCharsets.UTF_8);
	}

	/** chercher si la zone existe, sinon la créer */
	public static Zone traiterZone(ZoneDAO myZoneDAO, String zoneName) {
		Zone res = myZoneDAO.findByName(zoneName);
		if (res != null) {
			System.out.println("  > zone existed: " + zoneName);
		} else {
			System.out.println("  > zone create: " + zoneName);
			res = myZoneDAO.create();
			res.setComment(AUTO_CMT);
			res.setName(zoneName);
			res.update();
		}
		return res;
	}

	/** lire shapefile de carré, puis affecter aux zones */
	public static void affecterShp(FisheryRegion myRegion, List<Cell> listCells, Zone myZone, File shpFile) {
		Collection<Cell> cellsFromFile = GeoTools.getCellFromShapefile(myRegion, listCells, shpFile);
		myZone.setCell(new ArrayList<>(cellsFromFile)); //convert Collection to List
		myZone.update();
	}

	/**
	 * Interpolating environment variables in string
	 * this code is shared online: https://stackoverflow.com/a/74611963/10805680
	 */
	public final static StringSubstitutor expandEnvirVar = new StringSubstitutor(new EnvLookUp());
	private static class EnvLookUp implements StringLookup {
		@Override
		public String lookup(String key) {
			String value = System.getenv(key);
			if (StringUtils.isBlank(value)) {
				throw new IllegalArgumentException("key " + key + " is not found in the env variables");
			}
			return value;
		}
	}

}