/**
 * Class model for Entity Interface
 */

import type { EntityInterface } from "@/types/entity";
import type { IndividualInterface } from "@/types/individual";
import type { OrganizationInterface } from "@/types/organization";
import type { GroupInterface } from "@/types/group";
import { IndividualObject } from "./individual";
import { OrganizationObject } from "./organization";
import { GroupObject } from "./group";

export class EntityObject implements EntityInterface {

    _data!: EntityInterface;
  
    constructor() {
        this._data = {
            provider: '',
            service: '',
            collection: '',
            identifier: '',
            signature: null,
            created: null,
            modified: null,
            properties: new IndividualObject(),
        };
    }
  
    fromJson(data: EntityInterface) : EntityObject {
        this._data = data;
        if (data.properties) {
            const type = data.properties.type;
            if (type === 'organization') {
                this._data.properties = new OrganizationObject().fromJson(data.properties as OrganizationInterface);
            } else if (type === 'group') {
                this._data.properties = new GroupObject().fromJson(data.properties as GroupInterface);
            } else {
                this._data.properties = new IndividualObject().fromJson(data.properties as IndividualInterface);
            }
        }
        return this;
    }
  
    toJson(): EntityInterface {
        const json = { ...this._data };
        if (this._data.properties instanceof IndividualObject ||
            this._data.properties instanceof OrganizationObject ||
            this._data.properties instanceof GroupObject) {
            json.properties = this._data.properties.toJson();
        }
        return json;
    }

    clone(): EntityObject {
        const cloned = new EntityObject();
        cloned._data = { ...this._data };
        return cloned;
    }
  
    /** Immutable Properties */
    
    get provider(): string {
        return this._data.provider;
    }

    get service(): string {
        return this._data.service;
    }

    get collection(): string | number {
        return this._data.collection;
    }

    get identifier(): string | number {
        return this._data.identifier;
    }

    get signature(): string | null {
        return this._data.signature;
    }

    get created(): string | null {
        return this._data.created;
    }

    get modified(): string | null {
        return this._data.modified;
    }

    get properties(): IndividualObject | OrganizationObject | GroupObject {
        if (this._data.properties instanceof IndividualObject ||
            this._data.properties instanceof OrganizationObject ||
            this._data.properties instanceof GroupObject) {
            return this._data.properties;
        }

        const defaultProperties = new IndividualObject();
        this._data.properties = defaultProperties;
        return defaultProperties;
    }

    set properties(value: IndividualObject | OrganizationObject | GroupObject) {
        this._data.properties = value;
    }

}