package org.gcube.accounting.datamodel.validations.validators;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.net.URL;

import org.gcube.documentstore.records.DSMapper;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.fasterxml.jackson.databind.ObjectMapper;

public class TestRules {
	
	private static final Logger logger = LoggerFactory.getLogger(TestRules.class);
	
	@Test
	public void testAllRules() throws Exception {
		
		String[] aggregationTests = new String[]{
			"AuthorizationService-generate",
			"AuthorizationService-retrieve",
			"AuthorizationService-scopes",
			"Catalogue-WS-licenses",
			"Catalogue-WS-organizations",
			"Catalogue-WS-UNKNOWN",
			"CkanConnector-connect",
			"CkanConnector-disconnect",
			"FullTextIndexNode-delete",
			"FullTextIndexNode-dropCollection",
			"FullTextIndexNode-insert",
			"FullTextIndexNode-listCollections",
			"FullTextIndexNode-search",
			"GeoNetwork-login",
			"RConnector-connect",
			"RConnector-UNKNOWN",
			"TagMe-tag"
		};
		
		for(String aggregationTest : aggregationTests) {
			testRule(aggregationTest);
		}
		
	}
	
	public File getRulesDirectory() throws Exception {
		URL logbackFileURL = TestRules.class.getClassLoader().getResource("logback-test.xml");
		File logbackFile = new File(logbackFileURL.toURI());
		File resourcesDirectory = logbackFile.getParentFile();
		return new File(resourcesDirectory, "rules");
	}
	
	public void testRule(String rulePrefix) throws Exception {
		File rulesDirectory = getRulesDirectory();
		
		File rulesFile = new File(rulesDirectory, rulePrefix + "-rule.json");
		ObjectMapper mapper = DSMapper.getObjectMapper();
		MatcherReplace matcherReplace = mapper.readValue(rulesFile, MatcherReplace.class);
		Replacer replacer = matcherReplace.getReplacer();
		
		File elaborationFile = new File(rulesDirectory,rulePrefix + "-values.csv");
		try(BufferedReader br = new BufferedReader(new FileReader(elaborationFile))) {
			for(String line; (line = br.readLine()) != null;) {
				String[] splittedLine = line.split(",");
				boolean matched = matcherReplace.check(splittedLine[0],splittedLine[1],splittedLine[2]);
				if(matched) {
					logger.info("{} --> {},{},{}", line, replacer.getServiceClass(), replacer.getServiceName(), replacer.getCalledMethod());
				} else {
					logger.error("{} does not match {}. This MUST not occur.", line, matcherReplace.getMultiMatcher().toString());
					throw new Exception();
				}
				
			}
		} catch(Exception e) {
			throw e;
		}
	}
	
	@Test
	public void testSingleRule() throws Exception {
		testRule("RConnector-connect");
	}
	
}