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package com.avaje.ebeaninternal.server.deploy;

import com.avaje.ebean.text.StringFormatter;
import com.avaje.ebean.text.StringParser;
import com.avaje.ebeaninternal.server.el.ElPropertyValue;

/**
 * Used to evaluate imported foreign keys so as to avoid unnecessary joins.
 */
public final class BeanFkeyProperty implements ElPropertyValue {

    private final String placeHolder;
    private final String prefix;
    private final String name;
    private final String dbColumn;

    private int deployOrder;

    public BeanFkeyProperty(String prefix, String name, String dbColumn, int deployOrder) {
        this.prefix = prefix;
        this.name = name;
        this.dbColumn = dbColumn;
        this.deployOrder = deployOrder;
        this.placeHolder = calcPlaceHolder(prefix, dbColumn);
    }

    public int getDeployOrder() {
        return deployOrder;
    }

    private String calcPlaceHolder(String prefix, String dbColumn) {
        if (prefix != null) {
            return "${" + prefix + "}" + dbColumn;
        } else {
            return ROOT_ELPREFIX + dbColumn;
        }
    }

    public BeanFkeyProperty create(String expression) {
        int len = expression.length() - name.length() - 1;
        String prefix = expression.substring(0, len);

        return new BeanFkeyProperty(prefix, name, dbColumn, deployOrder);
    }

    /**
     * Returns false for keys.
     */
    public boolean isDbEncrypted() {
        return false;
    }

    /**
     * Returns false for keys.
     */
    public boolean isLocalEncrypted() {
        return false;
    }

    /**
     * Only usable as ElPropertyDeploy.
     */
    public boolean isDeployOnly() {
        return true;
    }

    /**
     * Returns false.
     */
    public boolean containsMany() {
        return false;
    }
    
    public boolean containsManySince(String sinceProperty) {
        return containsMany();
    }

    public String getDbColumn() {
        return dbColumn;
    }

    public String getName() {
        return name;
    }

    public String getElName() {
        return name;
    }

    /**
     * Returns null as not an AssocOne.
     */
    public Object[] getAssocOneIdValues(Object value) {
        return null;
    }

    /**
     * Returns null as not an AssocOne.
     */
    public String getAssocOneIdExpr(String prefix, String operator) {
        return null;
    }

    /**
     * Returns null as not an AssocOne.
     */
    public String getAssocIdInExpr(String prefix) {
        return null;
    }

    /**
     * Returns null as not an AssocOne.
     */
    public String getAssocIdInValueExpr(int size) {
        return null;
    }

    /**
     * Returns false as not an AssocOne.
     */
    public boolean isAssocId() {
        return false;
    }
    
    public boolean isAssocProperty() {
        return false;
    }

    public String getElPlaceholder(boolean encrypted) {
        return placeHolder;
    }

    public String getElPrefix() {
        return prefix;
    }

    public boolean isDateTimeCapable() {
        return false;
    }

    public Object parseDateTime(long systemTimeMillis) {
        throw new RuntimeException("ElPropertyDeploy only - not implemented");
    }

    public StringFormatter getStringFormatter() {
        throw new RuntimeException("ElPropertyDeploy only - not implemented");
    }

    public StringParser getStringParser() {
        throw new RuntimeException("ElPropertyDeploy only - not implemented");
    }

    public void elSetReference(Object bean) {
        throw new RuntimeException("ElPropertyDeploy only - not implemented");
    }

    public Object elConvertType(Object value) {
        throw new RuntimeException("ElPropertyDeploy only - not implemented");
    }

    public void elSetValue(Object bean, Object value, boolean populate, boolean reference) {
        throw new RuntimeException("ElPropertyDeploy only - not implemented");
    }

    public Object elGetValue(Object bean) {
        throw new RuntimeException("ElPropertyDeploy only - not implemented");
    }

    public Object elGetReference(Object bean) {
        throw new RuntimeException("ElPropertyDeploy only - not implemented");
    }

    public BeanProperty getBeanProperty() {
        throw new RuntimeException("ElPropertyDeploy only - not implemented");
    }

    public String getDeployProperty() {
        throw new RuntimeException("ElPropertyDeploy only - not implemented");
    }

}