#include "Domain.h"

Domain * Domain::head = 0;

Domain::Domain(const Regex & _pattern) : pattern(_pattern) {
    prev = 0;
    next = head;
    head = this;
    next->prev = this;
}

Domain::~Domain() {
    if (head == this)
        head = next;
    if (next)
        next->prev = prev;
    if (prev)
        prev->next = next;
}

void Domain::OnTop() {
    if (next)
        next->prev = prev;
    if (prev)
        prev->next = next;

    prev = 0;
    next = head;
    head = this;
    next->prev = this;    
}

Domain * Domain::find_domain(const String & url) {
    Domain * r = 0;
    
    if (head)
        r = head->find_domain_r(url);
    
    return r;
}

Domain * Domain::find_domain_r(const String & url) {
    if (pattern.Match(url))
        return this;
    
    if (next)
        return next->find_domain_r(url);
    
    return 0;
}