package it.cavallium.strangedb.utils;

import it.cavallium.strangedb.annotations.*;
import it.cavallium.strangedb.functionalinterfaces.RunnableWithIO;
import it.unimi.dsi.fastutil.longs.LongArrayList;
import it.cavallium.strangedb.database.Database;
import it.cavallium.strangedb.EnhancedObject;
import it.cavallium.strangedb.database.IDatabaseTools;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Comparator;

import static org.junit.Assert.*;

public class NTestUtils {
	public static WrappedDb wrapDb() {
		return new WrappedDb();
	}

	public static class WrappedDb {

		private Database db;
		private Path tempDir;
		private RunnableWithIO r;

		private WrappedDb() {

		}

		public WrappedDb create() throws IOException {
			tempDir = Files.createTempDirectory("tests-");
			db = openDatabase();
			if (r != null) {
				r.run();
			}
			return this;
		}

		public WrappedDb create(ConsumerWithIO<NTestUtils.WrappedDb> r) throws IOException {
			this.r = () -> r.accept(WrappedDb.this);
			this.create();
			return this;
		}

		private Database openDatabase() throws IOException {
			return new Database(tempDir.resolve(Paths.get("data.db")), tempDir.resolve(Paths.get("blocks.dat")), tempDir.resolve(Paths.get("references.dat")));
		}

		public void delete() throws IOException {
			db.close();
			deleteDir(tempDir);
		}

		public Database get() {
			return db;
		}

		private void deleteDir(Path p) throws IOException {
			Files.walk(p)
							.sorted(Comparator.reverseOrder())
							.map(Path::toFile)
							.forEach(File::delete);
		}

		public void closeAndReopen() throws IOException {
			db.close();
			db = openDatabase();
			r.run();
		}

		public void setRootClassValues(RootClass root) throws IOException {
			setRootClassFields(root);
			setRootClassProperties(root);
		}

		public void setRootClassFields(RootClass root) throws IOException {
			root.field1 = true;
			root.field2 = 2;
			root.field3 = 3;
			root.field4 = 4;
			root.field5 = 5;
			root.field6 = 6;
			root.field7 = "Test";
			root.field8 = new LongArrayList();
			root.field8.add(0);
			root.field8.add(1);
			root.field8.add(2);
			root.field8.add(Long.MAX_VALUE/2);
			root.field8.add(Long.MIN_VALUE/2);
			root.field8.add(Long.MAX_VALUE);
			root.field8.add(Long.MIN_VALUE);
			root.field9 = new NSimplestClass(db);
			root.field9.field1 = true;

		}

		public void setRootClassProperties(RootClass root) throws IOException {
			root.set7("Test");
			LongArrayList lArrayList = new LongArrayList();
			lArrayList.add(0);
			lArrayList.add(1);
			lArrayList.add(2);
			lArrayList.add(Long.MAX_VALUE/2);
			lArrayList.add(Long.MIN_VALUE/2);
			lArrayList.add(Long.MAX_VALUE);
			lArrayList.add(Long.MIN_VALUE);
			root.set8(lArrayList);
			NSimplestClass simplestClass9 = new NSimplestClass(db);
			simplestClass9.field1 = true;
			root.set9(simplestClass9);
		}

		public void testRootClassValues(RootClass root) {
			testRootClassFields(root);
			testRootClassProperties(root);
		}

		public void testRootClassFields(RootClass root) {
			shouldGetFieldBoolean(root);
			shouldGetFieldByte(root);
			shouldGetFieldShort(root);
			shouldGetFieldCharacter(root);
			shouldGetFieldInteger(root);
			shouldGetFieldLong(root);
			shouldGetFieldObject(root);
			shouldGetFieldUID(root);
			shouldGetFieldDBObject(root);
		}

		public void testRootClassProperties(RootClass root) {
			shouldGetPropertyObject(root);
			shouldGetPropertyUID(root);
			shouldGetPropertyDBObject(root);
		}


		private void shouldGetFieldBoolean(RootClass root) {
			assertTrue(root.field1);
		}

		private void shouldGetFieldByte(RootClass root) {
			assertEquals(2, root.field2);
		}

		private void shouldGetFieldShort(RootClass root) {
			assertEquals(3, root.field3);
		}

		private void shouldGetFieldCharacter(RootClass root) {
			assertEquals(4, root.field4);
		}

		private void shouldGetFieldInteger(RootClass root) {
			assertEquals(5, root.field5);
		}

		private void shouldGetFieldLong(RootClass root) {
			assertEquals(6, root.field6);
		}

		private void shouldGetFieldObject(RootClass root) {
			shouldGetObject(root.field7);
		}

		private void shouldGetPropertyObject(RootClass root) {
			shouldGetObject(root.get7());
		}

		private void shouldGetFieldDBObject(RootClass root) {
			assertTrue(root.field9.field1);
		}

		private void shouldGetPropertyDBObject(RootClass root) {
			assertTrue(root.get9().field1);
		}

		private void shouldGetObject(String val) {
			assertNotNull(val);
			assertEquals("Test", val);
		}

		private void shouldGetDBObject(NSimplestClass val) {
			assertNotNull(val);
			assertTrue(val.field1);
		}

		private void shouldGetFieldUID(RootClass root) {
			shouldGetUID(root.field8);
		}

		private void shouldGetPropertyUID(RootClass root) {
			shouldGetUID(root.get8());
		}

		private void shouldGetUID(LongArrayList val) {
			assertNotNull(val);
			assertEquals(7, val.size());
			assertEquals(0, val.getLong(0));
			assertEquals(val.getLong(5), Long.MAX_VALUE);
			assertEquals(val.getLong(6), Long.MIN_VALUE);
		}

		public void onLoad(RunnableWithIO r) {
			this.r = r;
		}
	}

	public static class RootClass extends EnhancedObject {

		@DbPrimitiveField(id = 0, type = DbPrimitiveType.BOOLEAN)
		public boolean field1;

		@DbPrimitiveField(id = 1, type = DbPrimitiveType.BYTE)
		public byte field2;

		@DbPrimitiveField(id = 2, type = DbPrimitiveType.SHORT)
		public short field3;

		@DbPrimitiveField(id = 3, type = DbPrimitiveType.CHAR)
		public char field4;

		@DbPrimitiveField(id = 4, type = DbPrimitiveType.INTEGER)
		public int field5;

		@DbPrimitiveField(id = 5, type = DbPrimitiveType.LONG)
		public long field6;

		@DbField(id = 0, type = DbDataType.OBJECT)
		public String field7;

		@DbField(id = 1, type = DbDataType.REFERENCES_LIST)
		public LongArrayList field8;

		@DbField(id = 2, type = DbDataType.ENHANCED_OBJECT)
		public NSimplestClass field9;

		public RootClass() {

		}

		public RootClass(IDatabaseTools databaseTools) throws IOException {
			super(databaseTools);
		}

		@DbPropertyGetter(id = 0, type = DbDataType.OBJECT)
		public String get7() {
			return getProperty();
		}

		@DbPropertyGetter(id = 1, type = DbDataType.REFERENCES_LIST)
		public LongArrayList get8() {
			return getProperty();
		}

		@DbPropertyGetter(id = 2, type = DbDataType.ENHANCED_OBJECT)
		public NSimplestClass get9() {
			return getProperty();
		}

		@DbPropertySetter(id = 0, type = DbDataType.OBJECT)
		public void set7(String val) {
			setProperty(val);
		}

		@DbPropertySetter(id = 1, type = DbDataType.REFERENCES_LIST)
		public void set8(LongArrayList val) {
			setProperty(val);
		}

		@DbPropertySetter(id = 2, type = DbDataType.ENHANCED_OBJECT)
		public void set9(NSimplestClass val) {
			setProperty(val);
		}

		public boolean test() {
			return true;
		}
	}
}