/**
 * Class model for Collection Interface
 */

import type { CollectionInterface, CollectionModelInterface, CollectionPropertiesInterface, CollectionPropertiesModelInterface } from "@/types/collection";
import { clonePlain } from './clone-plain';
import type { CollectionIdentifier, ServiceIdentifier } from "@/services";

export class CollectionObject implements CollectionModelInterface {

    _data!: CollectionInterface<CollectionPropertiesInterface>;
    _properties: CollectionPropertiesObject | undefined = undefined;

    constructor() {
        this._data = {
            '@type': 'mail:collection',
            version: 1,
            provider: '',
            service: '',
            collection: null,
            identifier: '',
            properties: {'@type': 'mail:folder', label: ''},
        };
    }

    fromJson(data: CollectionInterface): CollectionObject {
        this._data = clonePlain(data);
        this._properties = undefined;
        return this;
    }

    toJson(): CollectionInterface {
        const json = this._properties
            ? {
                ...this._data,
                properties: this._properties.toJson(),
            }
            : this._data;

        return clonePlain(json);
    }

    clone(): CollectionObject {
        return new CollectionObject().fromJson(this.toJson());
    }

    /** Immutable Properties */

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

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

    get collection(): CollectionIdentifier | null {
        return this._data.collection as CollectionIdentifier | null;
    }

    get identifier(): CollectionIdentifier {
        return this._data.identifier as CollectionIdentifier;
    }

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

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

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

    get properties(): CollectionPropertiesObject {
        if (this._properties) {
            return this._properties;
        }
        else if (this._data.properties) {
            const properties = new CollectionPropertiesObject().fromJson(this._data.properties as CollectionPropertiesInterface);
            this._properties = properties;
            return properties;
        }
        
        return new CollectionPropertiesObject();
    }

    set properties(value: CollectionPropertiesObject) {
        this._properties = value;
    }
}

export class CollectionPropertiesObject implements CollectionPropertiesModelInterface {

    private _data!: CollectionPropertiesInterface;

    constructor() {
        this._data = {
            '@type': 'mail:folder',
            total: 0,
            unread: 0,
            role: null,
            label: '',
            rank: 0,
            subscribed: true,
        };
    }

    fromJson(data: CollectionPropertiesInterface): CollectionPropertiesObject {
        this._data = clonePlain(data);
        return this;
    }

    toJson(): CollectionPropertiesInterface {
        return clonePlain(this._data);
    }

    clone(): CollectionPropertiesObject {
        return new CollectionPropertiesObject().fromJson(this.toJson());
    }

    /** Immutable Properties */

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

    get total(): number | undefined {
        return this._data.total;
    }

    get unread(): number | undefined {
        return this._data.unread;
    }

    /** Mutable Properties */

    get label(): string {
        return this._data.label || '';
    }

    set label(value: string) {
        this._data.label = value;
    }

    get rank(): number | undefined {
        return this._data.rank;
    }

    set rank(value: number) {
        this._data.rank = value;
    }

    get subscribed(): boolean | undefined {
        return this._data.subscribed;
    }

    set subscribed(value: boolean) {
        this._data.subscribed = value;
    }

}