package com.baiyue.lastleg.calendar;

import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Service;
import org.springframework.web.server.ResponseStatusException;
import java.time.temporal.ChronoUnit;
import java.util.HashSet;
import java.util.List;

@Service
public class WarehouseCalendarService {
    private final WarehouseCalendarRepository repository;
    private final com.baiyue.lastleg.service.ContainerWarehouseArrivalService arrivals;
    /** 装配日历只读仓储查询。 */
    public WarehouseCalendarService(WarehouseCalendarRepository repository,
        com.baiyue.lastleg.service.ContainerWarehouseArrivalService arrivals) { this.repository = repository; this.arrivals=arrivals; }
    /** 明确权限、版本与计划冻结资格；不以默认计划改写真实到仓时间。 */
    public List<WarehouseCalendarModels.Entry> calendar(WarehouseCalendarModels.Query query, boolean canEdit) {
        if (query.from() == null || query.to() == null || !query.to().isAfter(query.from())
            || ChronoUnit.DAYS.between(query.from(), query.to()) > 42
            || new HashSet<>(query.sourceContainerBookingIds()).size() != query.sourceContainerBookingIds().size())
            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "日历范围须为1至42天，来源柜不能重复");
        var rows = repository.calendar(query);
        if (rows.size() > 2000) throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "到仓记录过多，请缩小日期范围");
        var resolved=arrivals.resolve(rows.stream().map(WarehouseCalendarModels.Entry::sourceContainerBookingId).toList())
            .stream().collect(java.util.stream.Collectors.toMap(
                com.baiyue.lastleg.dto.ContainerArrivalTimeView::sourceContainerBookingId,java.util.function.Function.identity()));
        return rows.stream().map(row -> {
            var arrival=resolved.get(row.sourceContainerBookingId());
            if(arrival==null) throw new ResponseStatusException(HttpStatus.SERVICE_UNAVAILABLE,"来源柜到仓日期读取不完整");
            return new WarehouseCalendarModels.Entry(row.sourceContainerBookingId(), row.cabinetNo(), row.containerNo(),
                row.warehouseName(), row.warehouseCode(), row.plannedAt(), row.actualAt(), row.version(), row.planCount(),
                canEdit && row.version() >= 0 && row.planCount() == 0 && row.actualAt() == null,
                arrival.plannedDate(),arrival.isDefault());
        }).toList();
    }
}