package net.sourceforge.fenixedu.util.stork;

import java.util.ArrayList;
import java.util.List;
import java.util.Properties;

import net.sourceforge.fenixedu.domain.candidacyProcess.erasmus.StorkAttributeType;

public class SPUtil {

    private static SPUtil instance;

    private Properties properties;

    private List<Attribute> attributes;

    public static SPUtil getInstance() {
        // if (instance == null) {
        // instance = new SPUtil();
        // }

        return new SPUtil();
    }

    private SPUtil() {
        this.attributes = new ArrayList<Attribute>();

        try {
            this.properties = new Properties();
            properties.load(SPUtil.class.getClassLoader().getResourceAsStream("/sp.properties"));
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        loadAttributes();
    }

    private void loadAttributes() {
        for (int i = 1; i <= getNumberOfAttributes(); i++) {
            String name = this.properties.getProperty(f("attribute%s.name", i));
            Boolean mandatory = Boolean.valueOf(this.properties.getProperty(f("attribute%s.type", i)));
            String value = this.properties.getProperty(f("%s.value", name));
            this.attributes.add(new Attribute(i, StorkAttributeType.getTypeFromStorkName(name), mandatory, value));
        }

    }

    public String getId() {
        return this.properties.getProperty("sp.id");
    }

    public String getUrl() {
        return this.properties.getProperty("sp.url");
    }

    public String getQaLevel() {
        return this.properties.getProperty("sp.qaalevel");
    }

    public String getSpepsCountryUrl() {
        return this.properties.getProperty("speps.country.url");
    }

    public String getSpepsAuthUrl() {
        return this.properties.getProperty("speps.auth.url");
    }

    public Integer getNumberOfAttributes() {
        return Integer.valueOf(this.properties.getProperty("attribute.number"));
    }

    public String getSpInvokeUrl() {
        return this.properties.getProperty("sp.invoke.url");
    }

    public String getSPReturnFromPepsUrl() {
        return this.properties.getProperty("sp.return.from.peps.url");
    }

    public String getSPReturnFromPepsUrlEncoded() {
        return java.net.URLEncoder.encode(getSPReturnFromPepsUrl());
    }

    public String getSPReturnFromPepsToAccessApplicationUrl() {
        return this.properties.getProperty("sp.return.from.peps.to.access.application.url");
    }

    public String getSPReturnFromPepsToAccessApplicationUrlEncoded() {
        return java.net.URLEncoder.encode(getSPReturnFromPepsToAccessApplicationUrl());
    }

    public String getSPReturnFromPepsToBindApplicationWithStork() {
        return this.properties.getProperty("sp.return.from.peps.to.bind.application.with.stork");
    }

    public List<Attribute> getAttributes() {
        return this.attributes;
    }

    public Attribute getAttributeByName(String name) {
        for (Attribute attr : this.attributes) {
            if (name.equals(attr.getType().getStorkName())) {
                return attr;
            }
        }

        return null;
    }

    public Attribute getAttributeById(Integer id) {
        for (Attribute attr : this.attributes) {
            if (id.equals(attr.getId())) {
                return attr;
            }
        }

        return null;
    }

    private static String f(String format, Object... args) {
        return String.format(format, args);
    }

    public String getAttributesList() {
        StringBuilder sb = new StringBuilder();

        for (Attribute attribute : this.getAttributes()) {
            if (attribute.isValueAssigned()) {
                sb.append(f("%s:%s:%s;", attribute.getType().getStorkName(), attribute.getMandatory().toString(),
                        attribute.getValue()));
            } else {
                sb.append(f("%s:%s;", attribute.getType().getStorkName(), attribute.getMandatory().toString()));
            }
        }

        return sb.toString();
    }

    public String getMemcachedHostname() {
        return this.properties.getProperty("memcached.hostname");
    }

    public Integer getMemcachedPort() {
        return new Integer(this.properties.getProperty("memcached.port"));
    }
}