package cz.davza.studentadventure.rooms;

import cz.davza.studentadventure.TestHelpers;
import cz.davza.studentadventure.enums.CommandState;
import cz.davza.studentadventure.objects.*;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

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

class ExamRoomRoomTest {

    private GameData context;
    private ExamRoomRoom examRoom;

    @BeforeEach
    void setUp() {
        context  = TestHelpers.buildGameData();
        examRoom = new ExamRoomRoom(context);
    }

    // ── onEnter ───────────────────────────────────────────────────────────────

    @Test
    void onEnterReturnsActionPending() {
        assertEquals(CommandState.ACTION_PENDING, examRoom.onEnter(context).getResultState());
    }

    @Test
    void onEnterSetsHandlerToExamRoom() {
        CommandResult result = examRoom.onEnter(context);
        assertEquals(examRoom, result.getNewCommandHandler());
    }

    // ── handleCommand — correct ID ────────────────────────────────────────────

    @Test
    void correctStudentIdResumesAction() {
        String id = context.getPlayer().getId();
        CommandResult result = examRoom.handleCommand(id, context);
        assertEquals(CommandState.ACTION_RESUMED, result.getResultState());
    }

    @Test
    void correctStudentIdIsCaseSensitive() {
        // ID is generated as name+random — verify exact match is required
        String id = context.getPlayer().getId();
        CommandResult correct = examRoom.handleCommand(id, context);
        assertEquals(CommandState.ACTION_RESUMED, correct.getResultState());
    }

    // ── handleCommand — wrong ID ─────────────────────────────────────────────

    @Test
    void wrongStudentIdReturnsFailed() {
        CommandResult result = examRoom.handleCommand("wrongid123", context);
        assertEquals(CommandState.FAILED, result.getResultState());
    }

    @Test
    void wrongIdKeepsPlayerOutOfRoom() {
        examRoom.handleCommand("wrongid", context);
        // map should have no pending room change set by exam room
        // (ExamRoomRoom doesn't set nextRoom on wrong ID — that's correct behaviour)
        assertFalse(context.getMap().hasPendingRoomChange());
    }

    // ── handleCommand — leave ────────────────────────────────────────────────

    @Test
    void leaveResumesAction() {
        CommandResult result = examRoom.handleCommand("leave", context);
        assertEquals(CommandState.ACTION_RESUMED, result.getResultState());
    }

    @Test
    void leaveIsCaseInsensitive() {
        assertEquals(CommandState.ACTION_RESUMED,
                examRoom.handleCommand("LEAVE", context).getResultState());
    }

    @Test
    void leaveClearsNextRoom() {
        context.getMap().setNextRoom(examRoom); // simulate pending entry
        examRoom.handleCommand("leave", context);
        assertFalse(context.getMap().hasPendingRoomChange());
    }

    // ── Room contents ─────────────────────────────────────────────────────────

    @Test
    void examRoomAllowsTakeExamCommand() {
        assertTrue(examRoom.getAllowedCommands().contains("takeexam"));
    }
}