package com.zy.asrs.utils.param;

import lombok.Data;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

@Data
public class ItemUtilParam {

    @Data
    public static class Item {
        String name;
        double unitSpace;
        int maxCapacity;
        int stock;
        int remaining;

        public Item(String name, int maxCapacity, int stock) {
            this.name = name;
            this.maxCapacity = maxCapacity;
            this.unitSpace = 1.0 / maxCapacity;
            this.stock = stock;
            this.remaining = stock;
        }

        @Override
        public String toString() {
            return name + "(单放" + maxCapacity + "个, 库存" + stock + "个)";
        }
    }


    static class Locker {
        int id;
        double remainingSpace;
        long bindingTags;
        Map<String, Integer> contents;
        Set<String> itemTypes;

        public Locker(int id) {
            this.id = id;
            this.remainingSpace = 1.0;
            this.contents = new HashMap<>();
            this.itemTypes = new HashSet<>();
            this.bindingTags = System.currentTimeMillis();

        }

        public boolean canAdd(ItemUtilParam.Item item, int quantity) {
            return remainingSpace >= quantity * item.unitSpace;
        }

        public void addItem(ItemUtilParam.Item item, int quantity) {
            double spaceUsed = quantity * item.unitSpace;
            remainingSpace -= spaceUsed;
            contents.put(item.name, contents.getOrDefault(item.name, 0) + quantity);
            itemTypes.add(item.name);
            item.remaining -= quantity;
        }

        public boolean containsItemType(String itemName) {
            return itemTypes.contains(itemName);
        }

        @Override
        public String toString() {
            StringBuilder sb = new StringBuilder();
            sb.append("储物柜").append(id).append(": ");
            sb.append(String.format("剩余空间%.4f", remainingSpace)).append("\n");
            for (Map.Entry<String, Integer> entry : contents.entrySet()) {
                sb.append("  ").append(entry.getKey()).append(": ").append(entry.getValue()).append("个\n");
            }
            return sb.toString();
        }
    }
}