package de.ctdo.bunti.model;

import javax.persistence.*;
import java.util.Map;

/**
 * A physical device type in the bunti system.
 * Maybe this is a lamp, or a switchable power source, or a strobe, ...
 * @author lucas
 */
@Entity
@Table(name = "devices")
@Inheritance(strategy=InheritanceType.SINGLE_TABLE)
public abstract class BuntiDevice {
    private int id;
    private String deviceName;
    private String picture;

    public BuntiDevice() {

    }


    /**
     * Get the type of this device
     * @return a string with the class name (=the Type)
     */
    @Transient
    public final String getType() {
        String fqClassName = this.getClass().getName();
        int firstChar = fqClassName.lastIndexOf ('.') + 1;
        if ( firstChar > 0 ) {
            fqClassName = fqClassName.substring ( firstChar );
        }
        return fqClassName;
    }

    /**
     * Gets the device Id
     * @return the device Id
     */
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "BUNTIDEVICE_ID", updatable=false, nullable=false)
    public final int getId() {
        return id;
    }

    public final void setId(int id) {
        this.id = id;
    }

    /**
     * Gets the device name
     * @return The name of the device
     */
    public String getDeviceName() {
        return deviceName;
    }

    /**
     * Sets the device Name
     * @param deviceName a String with the device name
     */
    public void setDeviceName(String deviceName) {
        this.deviceName = deviceName;
    }

    /**
     * Get the relative URL to the picture of this device
     * @return the relative URL to the picture
     */
    public String getPicture() {
        return picture;
    }

    /**
     * Get the relative URL to the picture of this device
     * @param picture The relative URL to the picture
     */
    public void setPicture(String picture) {
        this.picture = picture;
    }

    /**
     * Switch this device off.
     */
    public abstract void switchOff();

    /**
     * Switch this device on.
     */
    public abstract void switchOn();

    /**
     * The the internal options corresponding to the given Key Value Map
     *
     * @param options The options Map.
     * @return True on success. False otherwise.
     */
    public abstract boolean setValuesFromOptions(Map<String, Object> options);


    @Transient
    public abstract Map<String, Object> getOptions();

}