mbroersen / jeloquent

export default class HasOneThrough extends Relation {

    localKey: string;

    throughModel: ModelStaticInterface;

    private _lcModelClassName: string;

    private _lcParentClassName: string;

    private _lcThroughModelClassName: string;

    constructor(model: ModelStaticInterface, throughModel: ModelStaticInterface, foreignKey: string = null, localKey = 'id') {

        super(model, foreignKey);

        this.throughModel = throughModel;

        this.localKey = localKey;

    }

    get indexName(): string {

        return `${this._lcThroughModelClassName}.${this._lcParentClassName}_id`;

    }

    get originalValue(): unknown {

        const findModel = this.$parent[`original_${this._lcThroughModelClassName}`];

        return findModel[`original_${this._lcModelClassName}`] ?? null;

    }

    get value(): unknown {

        const findModel = this.$parent[this._lcThroughModelClassName];

        return findModel[this._lcModelClassName] ?? null;

    }

    getRelationalFields(): Array<ForeignKey> {

        return [];

    }

    setName(): HasOneThrough {

        this._lcThroughModelClassName = this.throughModel.snakeCaseClassName;

        this._lcModelClassName = this.model.snakeCaseClassName;

        this._lcParentClassName = this.$parent.snakeCaseClassName;

        this.foreignKey = `${this._lcThroughModelClassName}_id`;

        this.$name = `${this._lcModelClassName}`;

        return this;

    }

}