import { element } from "./element.js";
import { submission } from "./submission.js";

class database {
    #submissions;

    constructor() {
        this.clean();
    }

    search(input) {
        const phrase = input.trim();
        const found = [];
        
        this.submissions.forEach(name => {
            const current = this.#submissions[name];

            if (name.search(phrase) !== -1) {
                found.push(current);
            }

            current.elemenets.forEach(name => {
                if (name.search(phrase) !== -1) {
                    found.push(current.get(name));
                }
            });
        });

        return found;
    }
    
    clean() {
        this.#submissions = {};
    }   

    add(container) {
        if (!(container instanceof submission)) {
            throw "Trying to add something which is not an submission.";
        }
        
        if (container.name in this.#submissions) {
            throw "Trying to add submission which already exists.";
        }   

        this.#submissions[container.name] = container;
    }

    get submissions() {
        return Object.keys(this.#submissions);
    }

    get(name) {
        if (typeof(name) !== "string") {
            throw "Submission name must be an string.";
        }

        if (!(name in this.#submissions)) {
            throw "Trying to get submission which not exists.";
        }

        return this.#submissions[name];
    }
} 

export { database };