import { ColumnOptions } from './decorators';
import { EntityMetadataKey, ColumnMetadataKey } from './decorators';
import { Injectable, Type, GET_INGER_DECORATOR, Injector } from "@notadd/core";
@Injectable()
export class TypeormHelper {
    constructor(private injector: Injector) { }
    getComment<T>(type: Type<T>): { [key: string]: string } {
        const getNger = this.injector.get(GET_INGER_DECORATOR)
        const target = getNger(type)
        const isEntity = target.classes.some(it => it.metadataKey === EntityMetadataKey)
        const result = {};
        if (isEntity) {
            target.properties.forEach(it => {
                if (it.metadataKey === ColumnMetadataKey) {
                    const options = it.options as ColumnOptions;
                    if (options) Reflect.set(result, it.property, options.comment || '')
                }
            })
        }
        return result;
    }
}