@typecad/typecad/dist/reference_counter.js

🤖programmatically 💥create 🛰️hardware

export class ReferenceCounter {
    constructor() {
        this.counters = new Map();
        this.usedReferences = new Set();
    }
    getNextReference(prefix) {
        let nextRef;
        let currentCount = this.counters.get(prefix) || 0;
        do {
            currentCount++;
            nextRef = `${prefix}${currentCount}`;
        } while (this.usedReferences.has(nextRef));
        this.counters.set(prefix, currentCount);
        this.usedReferences.add(nextRef);
        return nextRef;
    }
    setReference(reference) {
        if (this.usedReferences.has(reference)) {
            return false;
        }
        const prefix = reference.match(/^[#]?[a-zA-Z]+/)[0].toLowerCase();
        const number = parseInt(reference.match(/\d+/)[0]);
        this.usedReferences.add(reference);
        const currentCount = this.counters.get(prefix) || 0;
        if (number > currentCount) {
            this.counters.set(prefix, number);
        }
        return true;
    }
}