package jnpf.dmsService;

import jnpf.exception.DataException;
import org.junit.jupiter.api.Test;
import java.time.Instant;
import java.util.Date;
import static org.junit.jupiter.api.Assertions.*;

class DmsApprovedFileDatesTest {
    private Date at(String instant) { return Date.from(Instant.parse(instant)); }
    @Test void formalDateUsesShanghaiMidnightWithoutMovingToRegistrationTime() {
        assertEquals(at("2026-09-19T16:00:00Z"), DmsApprovedFileDates.scheduled(at("2026-09-20T03:00:00Z")));
        assertEquals(at("2026-09-13T16:00:00Z"), DmsApprovedFileDates.scheduled(at("2026-09-14T00:00:00Z")));
    }
    @Test void formalEffectiveDateIsRequired() {
        assertThrows(DataException.class, () -> DmsApprovedFileDates.scheduled(null));
    }
    @Test void revocationAndInvalidationNeverRunBeforeApproval() {
        Date approved = at("2026-09-17T04:30:00Z");
        assertEquals(approved, DmsApprovedFileDates.disableScheduled(null, approved));
        assertEquals(approved, DmsApprovedFileDates.disableScheduled(at("2026-09-16T16:00:00Z"), approved));
        assertEquals(approved, DmsApprovedFileDates.disableScheduled(at("2026-09-10T16:00:00Z"), approved));
        assertThrows(DataException.class, () -> DmsApprovedFileDates.disableScheduled(null, null));
    }
    @Test void futureDisableDateUsesShanghaiMidnightAndEachFileKeepsItsDate() {
        Date approved = at("2026-09-17T04:30:00Z");
        assertEquals(at("2026-09-17T16:00:00Z"),
                DmsApprovedFileDates.disableScheduled(at("2026-09-18T06:00:00Z"), approved));
        assertEquals(at("2026-09-19T16:00:00Z"),
                DmsApprovedFileDates.disableScheduled(at("2026-09-20T06:00:00Z"), approved));
    }
    @Test void expiryIncludesEntireBusinessDayAndRejectsExpiredInput() {
        assertEquals(at("2026-09-20T16:00:00Z"), DmsApprovedFileDates.expires(at("2026-09-20T00:00:00Z"), at("2026-09-20T05:00:00Z")));
        assertThrows(DataException.class, () -> DmsApprovedFileDates.expires(at("2026-09-20T00:00:00Z"), at("2026-09-20T16:00:00Z")));
    }
}