/// <reference path="ContentDifferential.ts" />
class ContentUnit {
    public categories : Array<ContentDifferential> = [];

    public addCategory (...nouns : Array<Thing | typeof Thing | ContentDifferential>) {
        this.categories.push(new ContentDifferential(...nouns));
        return this;
    }

    public isMatch (cu : ContentUnit) {
        return ContentDifferential.isMatch(this.categories, cu.categories);
    }

    public getScore () {
        let score = 0;
        this.categories.forEach(diff => {
            score += diff.score;
        });

        return score / this.categories.length;
    }

    public matchAgainst (a : Array<ContentUnit>) : Array<number> {
        for (let i = 0; i < a.length; i++) {
            if (a[i].isMatch(this)) {
                return [i];
            }
        }
    }
}