package com.goldenchart.service;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.goldenchart.dto.TrendSearchRequest;
import com.goldenchart.entity.GcAppSettings;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

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

/**
 * 앱 설정 JSON → 스캔 요청 배점 병합 검증.
 */
class TrendSearchSettingsHelperTest {

    private TrendSearchSettingsHelper helper;

    @BeforeEach
    void setUp() {
        helper = new TrendSearchSettingsHelper(new ObjectMapper());
    }

    @Test
    void mergeRequestWithSettings_appliesWeightsFromJson() throws Exception {
        GcAppSettings app = GcAppSettings.builder()
                .deviceId("test-device")
                .trendSearchSettingsJson("""
                    {"weightMaAlignment":50,"weightMaSlope":10,"weightAdxTrend":15,
                     "weightMacdMomentum":10,"weightPricePosition":15,"minTrendScore":60,
                     "limit":15,"scanLimit":40}
                    """)
                .build();

        TrendSearchRequest body = new TrendSearchRequest();
        body.setWeightMaAlignment(30);
        body.setMinTrendScore(70);

        TrendSearchRequest merged = helper.mergeRequestWithSettings(body, app);

        assertEquals(50, merged.getWeightMaAlignment());
        assertEquals(10, merged.getWeightMaSlope());
        assertEquals(15, merged.getWeightAdxTrend());
        assertEquals(60, merged.getMinTrendScore());
        assertEquals(15, merged.getLimit());
        assertEquals(40, merged.getScanLimit());
    }

    @Test
    void buildRequest_usesLastRequestTimeframe_whenPresent() throws Exception {
        GcAppSettings app = GcAppSettings.builder()
                .defaultTimeframe("1D")
                .trendSearchSettingsJson("{\"weightMaAlignment\":25}")
                .build();

        TrendSearchRequest last = new TrendSearchRequest();
        last.setTimeframe("4h");
        last.setWeightMaAlignment(99);

        TrendSearchRequest built = helper.buildRequest(app, last);

        assertEquals("4h", built.getTimeframe());
        assertEquals(25, built.getWeightMaAlignment());
    }
}