package com.talentcard.server.business.merchant;

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

import org.junit.jupiter.api.Test;

/**
 * 个人（小微）主体的 MCC 取的是**商户在进件表单里选的行业**。
 *
 * <p>进件第一步让个人商户选「行业类型」（餐饮服务／酒店服务／景区服务／加油服务／停车服务／其它），
 * 它跟着企业主体的公司类型一起落在 {@code company_type} 列上。原先上报汇付的 {@code mcc}
 * 只认商家档案上的经营类型，等于把这一项**静默丢掉**：档案没配好就一律落 7399（其它），
 * 通道侧的微信行业类目和费率跟着一起错，而商户页面上明明选过行业。
 *
 * <p>「其它」与识别不出来的取值返回空串，交给商家档案兜底——不要在这里拍一个 7399，
 * 那会把「档案里配了准确行业」的商户也降级成「其它」。
 */
class MerchantOnboardingIndustryMccTests {

    @Test
    void theIndustryPickedOnTheFormBecomesTheMcc() {
        assertThat(MerchantSettlementService.mccForIndustry("餐饮服务")).isEqualTo("5812");
        assertThat(MerchantSettlementService.mccForIndustry("酒店服务")).isEqualTo("7011");
        assertThat(MerchantSettlementService.mccForIndustry("景区服务")).isEqualTo("7991");
        assertThat(MerchantSettlementService.mccForIndustry("加油服务")).isEqualTo("5541");
        assertThat(MerchantSettlementService.mccForIndustry("停车服务")).isEqualTo("7523");
    }

    /** 别名与规范化代码同样认，商户端换过文案不影响映射。 */
    @Test
    void theIndustryIsResolvedThroughTheSharedCatalog() {
        assertThat(MerchantSettlementService.mccForIndustry("餐饮")).isEqualTo("5812");
        assertThat(MerchantSettlementService.mccForIndustry("food")).isEqualTo("5812");
        assertThat(MerchantSettlementService.mccForIndustry("餐饮商家")).isEqualTo("5812");
        assertThat(MerchantSettlementService.mccForIndustry(" theatre ")).isEqualTo("7832");
    }

    @Test
    void anUnrecognisedIndustryFallsBackToTheMerchantProfile() {
        assertThat(MerchantSettlementService.mccForIndustry("其它")).isEmpty();
        assertThat(MerchantSettlementService.mccForIndustry("街边小店")).isEmpty();
        assertThat(MerchantSettlementService.mccForIndustry("")).isEmpty();
        assertThat(MerchantSettlementService.mccForIndustry(null)).isEmpty();
    }
}