import BaseModel from './BaseModel';
import { index, getModelForClass, prop, DocumentType, modelOptions } from '@typegoose/typegoose';
import { BAG } from '../pubUtils/dicParam';
import { nowSeconds } from '../pubUtils/timeUtil';

@index({ roleId: 1, id: 1 })
@modelOptions({ schemaOptions: { id: false } })
export default class ActivityItem extends BaseModel {
    @prop({ required: true, default: '' })
    roleId: string;					// 角色 id
    @prop({ required: true, default: '' })
    roleName: string;				// 角色名称

    @prop({ required: true, default: '' })
    id: number;				  // 道具 id
    @prop({ required: true, default: '' })
    itemName: string;			  // 道具名称

    @prop({ required: true, default: 0 })
    expireTime: number;			  // 限时

    @prop({ required: true })
    count: number;			    // 道具数量


    public static async findbyRole(roleId: string, select = '') {
        const items: ActivityItemType[] = await ActivityItemModel.find({ roleId, count: {$gte: 0}, expireTime: { $gte: nowSeconds() } }).select(select).lean();
        return items;
    }

    public static async findbyRoleAndIds(roleId: string, ids: Array<number>, lean = true) {
        const items: ActivityItemType[] = await ActivityItemModel.find({ roleId, id: { $in: ids }, count: {$gte: 0}, expireTime: { $gte: nowSeconds() } }).select('id count expireTime').lean(lean);
        return items;
    }

    public static async findbyRoleAndGid(roleId: string, id: number, lean = true) {
        const items: ActivityItemType = await ActivityItemModel.findOne({ roleId, id }).select('id count expireTime').lean(lean);
        return items;
    }

    public static async increaseActivityItem(roleId: string, id: number, count: number, itemInfo: { roleId: string, roleName: string, id: number, itemName: string, expireTime?: number }) {
        const doc = new ActivityItemModel();
        const setOnInsert = Object.assign(doc.toJSON(), itemInfo);
        delete setOnInsert.expireTime;
        let items: ActivityItemType = await ActivityItemModel.findOneAndUpdate({ roleId, id, expireTime: { $gte: nowSeconds() } }, { $setOnInsert: setOnInsert, $inc: { count }, $set: { expireTime: itemInfo.expireTime } }, { new: true, upsert: true }).lean();
        if(items.count > BAG.BAG_GOODS_UPLIMITED) {
            items = await ActivityItemModel.findOneAndUpdate({ roleId, id, count: { $gte: BAG.BAG_GOODS_UPLIMITED }, expireTime: { $gte: nowSeconds() } }, { $set: { count: BAG.BAG_GOODS_UPLIMITED, expireTime: itemInfo.expireTime } }, { new: true }).lean();
        }
        return items;
    }

    public static async decreaseActivityItems(roleId: string, items: Array<{ id: number, count: number }>, lean = true) {
        let updateActivityItems = new Array<{ id: number, count: number }>(), hasError: boolean = false, result = new Array();
        for (let { id, count } of items) {
            let rec: ActivityItemType = await ActivityItemModel.findOneAndUpdate({ roleId, id, count: { $gte: count }, expireTime: { $gte: nowSeconds() } }, { $inc: { count: -1 * count } }, { new: true }).lean(lean);
            if (!!rec) {
                let index = result.findIndex(cur => cur.id == rec.id);
                if (index != -1) {
                    result[index].count = rec.count;
                    result[index].inc += -count;
                } else {
                    result.push({ id: rec.id, count: rec.count, expireTime: rec.expireTime, inc: -count });
                }
                updateActivityItems.push({ id, count });
            } else {
                hasError = true; break;
            }
        }
        if (hasError) { // 数量不足
            for (let { id, count } of updateActivityItems) {
                await ActivityItemModel.findOneAndUpdate({ roleId, id, expireTime: { $gte: nowSeconds() } }, { $inc: { count: -count } }, { new: true }).lean(lean);
            }
            return { hasError: true }
        } else {
            return { hasError: false, result }
        }
    }
}


export const ActivityItemModel = getModelForClass(ActivityItem);

export interface ActivityItemType extends Pick<DocumentType<ActivityItem>, keyof ActivityItem> {
    id: number;
};