import {ResInterface} from "../../interfaces/res";
import AppDataSource from "../dbConnecter";
import {ItemType} from "../entities/itemTypes";
import {Map} from "../entities/map";
import {MapItem} from "../entities/mapItem";

const mapItemRepository = AppDataSource.getRepository(MapItem);
const mapRepository = AppDataSource.getRepository(Map);
const itemTypeRepository = AppDataSource.getRepository(ItemType);

export const createMapItem = async (
    _id: string,
    x: number,
    y: number,
    rotation: 0 | 1 | 2 | 3,
    typeId: string,
    mapId: string
) => {
    const itemType = await itemTypeRepository.findOne({where: {id: typeId}});
    const map = await mapRepository.findOne({where: {id: mapId}, relations: ["mapItems"]});

    if (itemType && map) {
        if (!map.mapItems.some((item) => item.x == x && item.y == y)) {
            const mapItem = new MapItem();
            mapItem._id = _id;
            mapItem.x = x;
            mapItem.y = y;
            mapItem.type = itemType;
            mapItem.rotation = rotation;
            mapItem.map = map;

            return await mapItemRepository.save(mapItem);
        } else {
            throw new Error("不能在已存在MapItem的坐标放置新的MapItem");
        }
    } else {
        throw new Error("不存在的地图Id或类型Id");
    }
};

export const deleteMapItem = async (id: string) => {
    const mapItem = await mapItemRepository.findOne({
        where: {id},
    });
    if (mapItem) {
        await mapItemRepository.remove(mapItem);
        return true;
    } else return false;
};

export const linkMapItem = async (sourceId: string, targetId: string) => {
    const targetMapItem = await mapItemRepository.findOne({where: {id: targetId}});
    if (!targetMapItem) throw new Error("不存在的目标id");
    const sourceMapItem = await mapItemRepository.findOne({where: {id: sourceId}});
    if (!sourceMapItem) throw new Error("不存在的源目标id");
    sourceMapItem.linkto = targetMapItem;
    await mapItemRepository.save(sourceMapItem);
};

export const updateMapItem = async (newMapItem: MapItem) => {
    mapItemRepository.merge(newMapItem);
};

export const getMapItemById = async (id: string) => {
    const mapItem = await mapItemRepository.findOne({
        select: ["_id", "id", "x", "y", "type", "linkto", "property"],
        where: {id},
    });
    if (mapItem) {
        return mapItem;
    } else {
        return null;
    }
};

export const getMapItemsList = async () => {
    const mapItemsList = await mapItemRepository.find({relations: ["property", "linkto", "type"]});
    return mapItemsList;
};

export const getMapItemListByMapId = async (id: string) => {
    // const map = await mapRepository
    // 	.createQueryBuilder("map")
    // 	.leftJoinAndSelect("map.mapItems", "mapItem")
    // 	.leftJoinAndMapOne("mapItem.linkto", MapItem, "mapItemInMapItem", "mapItem.linktoId = mapItemInMapItem.id")
    // 	.leftJoinAndMapOne(
    // 		"mapItemInMapItem.type",
    // 		ItemType,
    // 		"typeInMapItemLink",
    // 		"mapItemInMapItem.typeId = typeInMapItemLink.id"
    // 	)
    // 	.leftJoinAndMapOne(
    // 		"mapItem.property",
    // 		Property,
    // 		"propertyInMapItemLink",
    // 		"mapItem.propertyId = propertyInMapItemLink.id"
    // 	)
    // 	.leftJoinAndMapOne(
    // 		"propertyInMapItemLink.street",
    // 		Street,
    // 		"streetInPropertyInMapItemLink",
    // 		"propertyInMapItemLink.streetId = streetInPropertyInMapItemLink.id"
    // 	)
    // 	.leftJoinAndMapOne("mapItem.type", ItemType, "type", "mapItem.typeId = type.id")
    // 	.leftJoinAndMapOne("type.model", Model, "model", "type.modelId = model.id")
    // 	.where("map.id = :id", { id })
    // 	.getOne();

    const map = await mapRepository.findOne({
        where: {id}, relations: [
            "mapItems",
            "mapItems.linkto",
            "mapItems.linkto.type",
            "mapItems.linkto.property",
            "mapItems.linkto.property.street",
            "mapItems.type",
            "mapItems.type.model",
            "mapItems.arrivedEvent",
            "mapItems.property",
            "mapItems.property.street",
        ]
    })
    if (map) {
        return map.mapItems;
    } else {
        throw new Error("错误的mapId")
    }
};