import { assetManager, JsonAsset } from "cc"
import { isNumber } from "db://assets/script/Manager/Utils"
import { IData } from "./interfaceMgr"

export type OptionObjectKey<E> = {
    [P in keyof E]?: E[P]
}

export class Data<T extends IData> {

    protected _data: T[] = null
    protected className = ''

    get data() {
        return this._data
    }

    processItem(data: T): T {
        return data
    }

    clone(v: T) {
        if (!v) return undefined
        return {
            ...v
        }
    }

    split(v: any) {
        return `${v}`.split('|').map(v => Number(v))
    }

    split2(v: any) {
        return `${v}`.split('|').map(v => (v))
    }

    async loadData() {
        if (this._data != null) return true
        return new Promise<boolean>((resolve, reject) => {
            assetManager.getBundle('hall').load(`data/${this.className}`, (error, data: JsonAsset) => {
                if (!error) {
                    this._data = (data.json as T[]).filter(v => isNumber(v.id)).map(v => this.processItem(v))
                    console.log(`load ${this.className} data success`)
                    resolve(true)
                } else {
                    reject(error)
                }
            })
        })
    }

    private predicate(q: OptionObjectKey<T>, v: T) {
        const keys = Object.keys(q)
        for (let index = 0; index < keys.length; index++) {
            if (q[keys[index]] != v[keys[index]]) return false
        }
        return true
    }

    findOne(q: OptionObjectKey<T>) {
        return this.data.find(v => this.predicate(q, v))
    }

    find(q: OptionObjectKey<T>) {
        return this.data.filter(v => this.predicate(q, v))
    }

    findById(id: number) {
        return this.data.find(v => v.id == id)
    }

    findByDifferentId(id: number) {
        return this.data.filter(v => v.id != id)
    }
}