package org.libvirt;

/**
 * @author stoty
 *
 */
public class VirConnectCredential {
	
	public static enum VirConnectCredentialType {
		//This is off by one, but we don't care, because we can't convert java Enum to C enum in a sane way anyway 
		/**
		 * Identity to act as
		 */
		VIR_CRED_USERNAME,
		/**
		 * Identify to authorize as
		 */
		VIR_CRED_AUTHNAME,
		/**
		 * RFC 1766 languages, comma separated
		 */
		VIR_CRED_LANGUAGE,
		/**
		 * client supplies a nonce
		 */
		VIR_CRED_CNONCE,
		/**
		 * Passphrase secret
		 */
		VIR_CRED_PASSPHRASE,
		/**
		 * Challenge response
		 */
		VIR_CRED_ECHOPROMPT,
		/**
		 * Challenge response
		 */
		VIR_CRED_NOECHOPROMPT,
		/**
		 * Authentication realm
		 */
		VIR_CRED_REALM,
		/**
		 * Externally managed credential More may be added - expect the unexpected
		 */
		VIR_CRED_EXTERNAL;
		
		/**
		 * Maps the java VirConnectCredentialType Enum to libvirt's integer constant
		 * 
		 * @return The integer equivalent
		 */
		private int mapToInt(){
			switch(this){
				case VIR_CRED_USERNAME: return 1;
				case VIR_CRED_AUTHNAME: return 2;
				case VIR_CRED_LANGUAGE: return 3;
				case VIR_CRED_CNONCE: return 4;
				case VIR_CRED_PASSPHRASE: return 5;
				case VIR_CRED_ECHOPROMPT: return 6;
				case VIR_CRED_NOECHOPROMPT: return 7;
				case VIR_CRED_REALM: return 8;
				case VIR_CRED_EXTERNAL: return 9;
			}
			//We may never reach this point
			assert(false);
			return 0;
		}
	}

	/**
	 * One of virConnectCredentialType constants
	 */
	public VirConnectCredentialType type;
	/**
	 * Prompt to show to user
	 */
	public String prompt;
	/**
	 * Additional challenge to show
	 */
	public String challenge;
	/**
	 * Optional default result
	 */
	public String defresult;
	/**
	 * Result to be filled with user response (or defresult)
	 */
	public String result;

	/**
	 * Convenience constructor to be called from the JNI side
	 * 
	 * @param type
	 * @param prompt
	 * @param challenge
	 * @param defresult
	 */
	VirConnectCredential(int type, String prompt, String challenge, String defresult){
		switch(type){
			case 1: this.type=VirConnectCredentialType.VIR_CRED_USERNAME; break;
			case 2: this.type=VirConnectCredentialType.VIR_CRED_AUTHNAME; break;
			case 3: this.type=VirConnectCredentialType.VIR_CRED_LANGUAGE; break;
			case 4: this.type=VirConnectCredentialType.VIR_CRED_CNONCE; break;
			case 5: this.type=VirConnectCredentialType.VIR_CRED_PASSPHRASE; break;
			case 6: this.type=VirConnectCredentialType.VIR_CRED_ECHOPROMPT; break;
			case 7: this.type=VirConnectCredentialType.VIR_CRED_NOECHOPROMPT; break;
			case 8: this.type=VirConnectCredentialType.VIR_CRED_REALM; break;
			case 9: this.type=VirConnectCredentialType.VIR_CRED_EXTERNAL; break;
			default: assert(false);
		}
		this.prompt = prompt;
		this.challenge = challenge;
		this.defresult = defresult;
	}
	

}