package design.persistence;

import static org.junit.jupiter.api.Assertions.assertEquals;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Date;

import static org.junit.jupiter.api.Assertions.assertNotNull;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;

import design.model.League;
import design.model.StrokeLeague;
import design.model.Golfer;

/** Unit Tests for the JSON Personal Database Singleton
 * @author Willem Dalton
 **/
@Tag("Persistence-tier")
public class JSONLeagueDatabaseTest {
    Path tempDB;

    @BeforeEach
    void clearDB() throws IOException
    {
        tempDB = Files.createTempFile("testleaguedb", ".json");
        Files.writeString(tempDB, "[]");
        JSONLeagueDatabase.testInstance(tempDB.toString());
    }
    
    @Test 
    void testInstance()
    {
        JSONLeagueDatabase instance = JSONLeagueDatabase.instance(); // makes new instance
        assertNotNull(instance);
        JSONLeagueDatabase instance2 = JSONLeagueDatabase.instance(); // instance already exists
        assertNotNull(instance2);
    }

    @Test
    void testAddRemove() throws IOException
    {
        JSONLeagueDatabase instance = JSONLeagueDatabase.testInstance(tempDB.toString()); // makes new instance
        Golfer testOwner = new Golfer("Jamie Doe", "joe_cool", "12345");
        League testLeague = new StrokeLeague("The A Team", new Date(1234), new Date(123), new Date(12345), testOwner);
        instance.addLeague(testLeague);
        assertEquals(1, instance.getLeagues().length);
        assertEquals(testLeague, instance.getLeagues()[0]);
        instance.removeLeague(testLeague);
        assertEquals(0, instance.getLeagues().length);
    }

    // @Test
    // void testUpdateGolfer() throws IOException
    // {
    //     JSONLeagueDatabase instance = JSONLeagueDatabase.testInstance(tempDB.toString()); // makes new instance
    //     Golfer testGolfer = new Golfer("Jamie Doe", "joe_cool", "12345");
    //     instance.addGolfer(testGolfer);
    //     testGolfer.setUsername("joe_super_cool");
    //     instance.updateGolfer(testGolfer);
    //     assertEquals(testGolfer, instance.getGolfer("joe_super_cool"));
    // }
}