xzmaster/backend/src/test/java/com/xuezhanmaster/game/event/GameEventTest.java

package com.xuezhanmaster.game.event;

import com.xuezhanmaster.game.domain.ActionType;
import com.xuezhanmaster.game.domain.ScoreChange;
import com.xuezhanmaster.game.domain.SettlementDetail;
import com.xuezhanmaster.game.domain.SettlementFan;
import com.xuezhanmaster.game.domain.SettlementResult;
import com.xuezhanmaster.game.domain.SettlementType;
import org.junit.jupiter.api.Test;

import java.util.List;

import static org.assertj.core.api.Assertions.assertThat;

class GameEventTest {

    @Test
    void shouldBuildResponseActionPayloadForFutureResponseEvents() {
        GameEvent event = GameEvent.responseActionDeclared(
                "game-1",
                GameEventType.PENG_DECLARED,
                2,
                1,
                "三万"
        );

        assertThat(event.eventType()).isEqualTo(GameEventType.PENG_DECLARED);
        assertThat(event.seatNo()).isEqualTo(2);
        assertThat(event.payload())
                .containsEntry("actionType", "PENG")
                .containsEntry("sourceSeatNo", 1)
                .containsEntry("tile", "三万");
    }

    @Test
    void shouldBuildStandardPublicTableEvents() {
        GameEvent started = GameEvent.gameStarted("game-1", "room-1");
        GameEvent phaseChanged = GameEvent.phaseChanged("game-1", "PLAYING");
        GameEvent switched = GameEvent.turnSwitched("game-1", 3);

        assertThat(started.eventType()).isEqualTo(GameEventType.GAME_STARTED);
        assertThat(started.payload()).containsEntry("roomId", "room-1");

        assertThat(phaseChanged.eventType()).isEqualTo(GameEventType.GAME_PHASE_CHANGED);
        assertThat(phaseChanged.payload()).containsEntry("phase", "PLAYING");

        assertThat(switched.eventType()).isEqualTo(GameEventType.TURN_SWITCHED);
        assertThat(switched.payload()).containsEntry("currentSeatNo", 3);
    }

    @Test
    void shouldBuildSettlementEvents() {
        SettlementResult settlementResult = new SettlementResult(
                SettlementType.DIAN_PAO_HU,
                ActionType.HU,
                2,
                0,
                "9筒",
                new SettlementDetail(
                        1,
                        2,
                        4,
                        List.of(new SettlementFan("QING_YI_SE", "清一色", 2))
                ),
                List.of(
                        new ScoreChange(2, 1, 3),
                        new ScoreChange(0, -1, -2)
                )
        );

        GameEvent settlementApplied = GameEvent.settlementApplied("game-1", settlementResult);
        GameEvent scoreChanged = GameEvent.scoreChanged("game-1", 2, SettlementType.DIAN_PAO_HU.name(), 1, 3);

        assertThat(settlementApplied.eventType()).isEqualTo(GameEventType.SETTLEMENT_APPLIED);
        assertThat(settlementApplied.payload())
                .containsEntry("settlementType", "DIAN_PAO_HU")
                .containsEntry("actionType", "HU")
                .containsEntry("sourceSeatNo", 0)
                .containsEntry("triggerTile", "9筒");
        assertThat(settlementApplied.payload()).containsKey("settlementDetail");
        assertThat(settlementApplied.payload()).containsKey("scoreChanges");
        assertThat((java.util.Map<String, Object>) settlementApplied.payload().get("settlementDetail"))
                .containsEntry("baseScore", 1)
                .containsEntry("totalFan", 2)
                .containsEntry("paymentScore", 4);

        assertThat(scoreChanged.eventType()).isEqualTo(GameEventType.SCORE_CHANGED);
        assertThat(scoreChanged.payload())
                .containsEntry("settlementType", "DIAN_PAO_HU")
                .containsEntry("delta", 1)
                .containsEntry("score", 3);
    }

    @Test
    void shouldAllowHuEventWithoutSourceSeatForSelfDraw() {
        GameEvent selfDrawHu = GameEvent.responseActionDeclared(
                "game-1",
                GameEventType.HU_DECLARED,
                0,
                null,
                null
        );

        assertThat(selfDrawHu.eventType()).isEqualTo(GameEventType.HU_DECLARED);
        assertThat(selfDrawHu.payload())
                .containsEntry("actionType", "HU")
                .doesNotContainKey("sourceSeatNo")
                .doesNotContainKey("tile");
    }

    @Test
    void shouldAllowGangEventWithoutSourceSeatForConcealedGang() {
        GameEvent concealedGang = GameEvent.responseActionDeclared(
                "game-1",
                GameEventType.GANG_DECLARED,
                0,
                null,
                "3万"
        );

        assertThat(concealedGang.eventType()).isEqualTo(GameEventType.GANG_DECLARED);
        assertThat(concealedGang.payload())
                .containsEntry("actionType", "GANG")
                .containsEntry("tile", "3万")
                .doesNotContainKey("sourceSeatNo");
    }
}