@gang-js/core/dist/services/utils/GangUrlBuilder.js

a state sharing algorithm

export class GangUrlBuilder {
    constructor(urlString) {
        const protocolSplit = urlString.split(':');
        if (protocolSplit.length < 2)
            throw new Error(`GangUrlBuilder.ctor protocol not found ${urlString}`);
        this.protocol = protocolSplit[0];
        const path = protocolSplit.slice(1).join(':').split('?');
        this.root = path[0];
        this.parameters = {};
        if (path[1]) {
            path[1].split('&').forEach((part) => {
                const kv = part.split('=');
                this.add(kv[0], kv[1]);
            });
        }
    }
    static from(urlString) {
        return new GangUrlBuilder(urlString);
    }
    add(key, value) {
        if (!key)
            throw new Error('GangUrlBuilder.add key is required');
        if (!value)
            throw new Error('GangUrlBuilder.add value is required');
        if (this.parameters[key] != null) {
            this.parameters[key].push(value);
        }
        else {
            this.parameters[key] = [value];
        }
        return this;
    }
    set(key, value) {
        if (!key)
            throw new Error('GangUrlBuilder.set key is required');
        if (!value) {
            delete this.parameters[key];
        }
        else if (Array.isArray(value)) {
            this.parameters[key] = value;
        }
        else {
            this.parameters[key] = [value];
        }
        return this;
    }
    setAll(data) {
        if (data == null)
            return this;
        return Object.entries(data).reduce((o, [k, v]) => o.set(k, v), this);
    }
    getString(key) {
        return this.parameters[key] === undefined ? undefined : this.parameters[key][0];
    }
    remove(key) {
        delete this.parameters[key];
        return this;
    }
    build() {
        let url = `${this.protocol}:${this.root}`;
        if (this.parameters) {
            const keys = Object.keys(this.parameters);
            if (keys.length) {
                let separator = '?';
                keys.forEach((key) => {
                    const values = this.parameters[key];
                    values.forEach((value) => {
                        url += `${separator}${key}=${value}`;
                        separator = '&';
                    });
                });
            }
        }
        return url;
    }
}