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public class Dino.Entities.Jid : Object {
    public string? localpart { get; set; }
    public string domainpart { get; set; }
    public string? resourcepart { get; set; }

    public Jid? bare_jid {
        owned get { return localpart != null ? new Jid(@"$localpart@$domainpart") : new Jid(domainpart); }
    }

    private string jid { get; private set; }

    public Jid(string jid) {
        Jid? parsed = Jid.parse(jid);
        string? localpart = parsed != null ? parsed.localpart : null;
        string domainpart = parsed != null ? parsed.domainpart : jid;
        string? resourcepart = parsed != null ? parsed.resourcepart : null;
        Jid.components(localpart, domainpart, resourcepart);
    }

    public Jid.with_resource(string bare_jid, string resource) {
        Jid? parsed = Jid.parse(bare_jid);
        Jid.components(parsed.localpart, parsed.domainpart, resourcepart);
    }

    public Jid.components(string? localpart, string domainpart, string? resourcepart) {
        string jid = domainpart;
        if (localpart != null) {
            jid = @"$localpart@$jid";
        }
        if (resourcepart != null) {
            jid = @"$jid/$resourcepart";
        }
        this.jid = jid;
        this.localpart = localpart;
        this.domainpart = domainpart;
        this.resourcepart = resourcepart;
    }

    public static Jid? parse(string jid) {
        int slash_index = jid.index_of("/");
        string resourcepart = slash_index == -1 ? null : jid.slice(slash_index + 1, jid.length);
        string bare_jid = slash_index == -1 ? jid : jid.slice(0, slash_index);
        int at_index = bare_jid.index_of("@");
        string localpart = at_index == -1 ? null : bare_jid.slice(0, at_index);
        string domainpart = at_index == -1 ? bare_jid : bare_jid.slice(at_index + 1, bare_jid.length);

        if (domainpart == "") return null;
        if (slash_index != -1 && resourcepart == "") return null;
        if (at_index != -1 && localpart == "") return null;

        return new Jid.components(localpart, domainpart, resourcepart);
    }

    public bool is_bare() {
        return localpart != null && resourcepart == null;
    }

    public bool is_full() {
        return localpart != null && resourcepart != null;
    }

    public string to_string() {
        return jid;
    }

    public bool equals_bare(Jid jid) {
        return equals_bare_func(this, jid);
    }

    public bool equals(Jid jid) {
        return equals_func(this, jid);
    }

    public static new bool equals_bare_func(Jid jid1, Jid jid2) {
        return jid1.bare_jid.to_string() == jid2.bare_jid.to_string();
    }

    public static bool equals_func(Jid jid1, Jid jid2) {
        return jid1.to_string() == jid2.to_string();
    }

    public static new uint hash_bare_func(Jid jid) {
        return jid.bare_jid.to_string().hash();
    }

    public static new uint hash_func(Jid jid) {
        return jid.to_string().hash();
    }
}