import { Injectable } from "@nestjs/common";
import { SkillDto, SkillType } from "@/skills/skills.types";
import {skills} from "@/skills/skills";

@Injectable()
export class SkillsService {
    private readonly skills: ReadonlyArray<SkillDto>;

    constructor() {
        this.skills = SkillDto.asDto(skills)
                .sort((skillA, skillB) => skillA.category > skillB.category ? 1 : -1);
    }

    getMany(filter?: Partial<SkillType>) {
        const filtersValues = Object.entries(filter ?? {}).map(([key, filterValue]) => ([key, new RegExp(filterValue, "i")])) as [keyof SkillType, RegExp][];
        if (!filter || filtersValues.length === 0) {
            return this.skills;
        }

        return this.skills.filter((skill) => filtersValues.some(([key, filterValue]) => filterValue.test(skill[key])));
    }
}