package cz.davza.studentadventure.commands;

import cz.davza.studentadventure.TestHelpers;
import cz.davza.studentadventure.enums.CommandState;
import cz.davza.studentadventure.objects.CommandResult;
import cz.davza.studentadventure.objects.GameData;
import cz.davza.studentadventure.objects.Player;
import cz.davza.studentadventure.rooms.BedroomRoom;
import cz.davza.studentadventure.rooms.ClassroomRoom;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
import java.util.List;
import static cz.davza.studentadventure.TestHelpers.execute;
import static org.junit.jupiter.api.Assertions.*;

class SleepCommandTest {

    private GameData context;
    private Player player;

    @BeforeEach
    void setUp() {
        context = TestHelpers.buildGameData();
        player  = context.getPlayer();
        // Starting room is Bedroom — sleep is valid here immediately
    }

    @Test
    void sleepInBedroomReturnsSuccess() {
        CommandResult result = execute("sleep", context);
        assertEquals(CommandState.SUCCESS, result.getResultState());
    }

    @Test
    void sleepInBedroomRestoresEnergy() {
        player.getEnergy().decrease(50);
        execute("sleep", context);
        assertEquals(100, player.getEnergy().getValue());
    }

    @Test
    void sleepInBedroomReducesStress() {
        player.getStress().increase(60);
        execute("sleep", context);
        assertEquals(0, player.getStress().getValue());
    }

    @Test
    void sleepInBedroomResetsHoursAwake() {
        player.addHoursAwake(20);
        execute("sleep", context);
        assertEquals(cz.davza.studentadventure.enums.DeprivationState.NORMAL,
                player.getDeprivationState());
    }

    @Test
    void sleepInBedroomAdvancesToNextMorning() {
        execute("sleep", context);
        assertEquals(2, context.getTime().getDay());
        assertEquals(8, context.getTime().getHour());
    }

    @Test
    void sleepOutsideBedroomAndClassroomFails() {
        // Walk to hallway first
        context.getMap().setNextRoom(context.getMap().getCurrentRoom().getExit("hallway"));
        context.getMap().commitRoomChange();
        CommandResult result = execute("sleep", context);
        assertEquals(CommandState.FAILED, result.getResultState());
    }

    @Test
    void sleepInClassroomAdvancesTimeBy2Hours() {
        // Move player to classroom — need book to enter
        context.getPlayer().getInventory().Add(new cz.davza.studentadventure.Items.Book(), 1);
        context.getMap().setNextRoom(context.getMap().getCurrentRoom().getExit("hallway"));
        context.getMap().commitRoomChange();
        context.getMap().setNextRoom(context.getMap().getCurrentRoom().getExit("classroom"));
        context.getMap().commitRoomChange();

        int hourBefore = context.getTime().getHour();
        // Run many times to guarantee we hit the success path at least once
        // (30% catch chance means ~99.9% chance of success in 20 attempts)
        boolean succeeded = false;
        for (int i = 0; i < 20; i++) {
            context = TestHelpers.buildGameData();
            player  = context.getPlayer();
            player.getInventory().Add(new cz.davza.studentadventure.Items.Book(), 1);
            context.getMap().setNextRoom(context.getMap().getCurrentRoom().getExit("hallway"));
            context.getMap().commitRoomChange();
            context.getMap().setNextRoom(context.getMap().getCurrentRoom().getExit("classroom"));
            context.getMap().commitRoomChange();
            int before = context.getTime().getHour();
            CommandResult result = execute("sleep", context);
            if (result.getResultState() == CommandState.SUCCESS) {
                assertEquals(before + 2, context.getTime().getHour());
                succeeded = true;
                break;
            }
        }
        assertTrue(succeeded, "Expected at least one successful classroom sleep in 20 attempts");
    }

    @Test
    void sleepInClassroomCanReturnGameOver() {
        // Run many times to guarantee we hit the caught path
        boolean caughtOnce = false;
        for (int i = 0; i < 50; i++) {
            GameData ctx = TestHelpers.buildGameData();
            ctx.getPlayer().getInventory().Add(new cz.davza.studentadventure.Items.Book(), 1);
            ctx.getMap().setNextRoom(ctx.getMap().getCurrentRoom().getExit("hallway"));
            ctx.getMap().commitRoomChange();
            ctx.getMap().setNextRoom(ctx.getMap().getCurrentRoom().getExit("classroom"));
            ctx.getMap().commitRoomChange();
            CommandResult result = execute("sleep", ctx);
            if (result.getResultState() == CommandState.GAME_OVER) {
                caughtOnce = true;
                break;
            }
        }
        assertTrue(caughtOnce, "Expected to be caught sleeping at least once in 50 attempts");
    }
}