// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.gui;

import org.junit.BeforeClass;
import org.junit.Test 
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.osm.UserInfo;
import org.openstreetmap.josm.fixtures.JOSMFixture;

import static org.junit.Assert.*;

class JosmUserIdentityManagerTest {
	
	final shouldFail = new GroovyTestCase().&shouldFail
	
	private static JOSMFixture josmFixture
	
	@BeforeClass
	public static void initTestCase() {
	    josmFixture = JOSMFixture.createFunctionalTestFixture()
	}
	
	@Test
	public void test_SingletonAccess() {
		
		JosmUserIdentityManager im = JosmUserIdentityManager.getInstance()		

		// created ?
		assert im != null
		
		// registered as listener ? 
		assert Main.pref.@listeners.contains(im)
		
		JosmUserIdentityManager im2 = JosmUserIdentityManager.getInstance()

		// only one instance
		assert im == im2		
	}
	
	@Test
	public void test_setAnonymouse() {
		JosmUserIdentityManager im = JosmUserIdentityManager.getInstance()
		
		im.setPartiallyIdentified "test"
		im.setAnonymous()
				
		assert im.isAnonymous()
		assert ! im.isPartiallyIdentified()
		assert ! im.isFullyIdentified()
		
		assert im.getUserId() == 0
		assert im.getUserName() == null
		assert im.getUserInfo() == null
	}
	
	@Test
	public void test_setPartiallyIdentified() {
		JosmUserIdentityManager im = JosmUserIdentityManager.getInstance()
		
		im.setPartiallyIdentified "test"
		
		shouldFail(IllegalArgumentException) {
		    im.setPartiallyIdentified null
		}
		
		shouldFail(IllegalArgumentException) {
			im.setPartiallyIdentified ""
		}
		
		shouldFail(IllegalArgumentException) {
			im.setPartiallyIdentified "  \t  "
		}
		
		im.setPartiallyIdentified "test"
		
		assert ! im.isAnonymous()
		assert im.isPartiallyIdentified()
		assert ! im.isFullyIdentified()
		
		assert im.getUserId() == 0
		assert im.getUserName() == "test"
		assert im.getUserInfo() == null
	}
	
	
	@Test
	public void test_setFullyIdentified() {
		JosmUserIdentityManager im = JosmUserIdentityManager.getInstance()

		UserInfo userInfo = new UserInfo(id: 1, description: "a description")
		
		im.setFullyIdentified "test", userInfo
		
		shouldFail(IllegalArgumentException) {
			im.setFullyIdentified null, userInfo
		}
		shouldFail(IllegalArgumentException) {
			im.setFullyIdentified "", userInfo
		}
		shouldFail(IllegalArgumentException) {
			im.setFullyIdentified " \t ", userInfo
		}
		shouldFail(IllegalArgumentException) {
			im.setFullyIdentified "test", null
		}
		
		im.setFullyIdentified "test", userInfo
		
		assert ! im.isAnonymous()
		assert ! im.isPartiallyIdentified()
		assert im.isFullyIdentified()
		
		assert im.getUserId() == 1
		assert im.getUserName() == "test"
		assert im.getUserInfo() == userInfo
	}
	
	/**
	 * Preferences include neither an url nor a user name => we have
	 * an anonymous user 
	 */
	@Test 
	public void initFromPreferences_1() {
		JosmUserIdentityManager im = JosmUserIdentityManager.getInstance()
		
		// reset it 
		im.@userName = null
		im.@userInfo = null
		
		Main.pref.put "osm-server.url", null
		Main.pref.put "osm-server.username", null
		
		im.initFromPreferences()
		
		assert im.isAnonymous()
	}
	
	/**
	 * Preferences include neither an url nor a user name => we have
	 * an annoymous user 
	 */
	@Test 
	public void initFromPreferences_2() {
		JosmUserIdentityManager im = JosmUserIdentityManager.getInstance()
		
		// reset it 
		im.@userName = null
		im.@userInfo = null
		
		// for this test we disable the listener
		Main.pref.removePreferenceChangeListener im
		
		Main.pref.put "osm-server.url", "http://api.openstreetmap.org"
		Main.pref.put "osm-server.username", null
		
		im.initFromPreferences()
		
		assert im.isAnonymous()
	}
	
	/**
	 * Preferences include an user name => we have a partially identified user 
	 */
	@Test 
	public void initFromPreferences_3() {
		JosmUserIdentityManager im = JosmUserIdentityManager.getInstance()

        // for this test we disable the listener
		Main.pref.removePreferenceChangeListener im

		// reset it 
		im.@userName = null
		im.@userInfo = null
		
		Main.pref.put "osm-server.url", "http://api.openstreetmap.org"
		Main.pref.put "osm-server.username", "test"
		
		im.initFromPreferences()
		
		assert im.isPartiallyIdentified()
	}
	
	/**
	 * Preferences include an user name which is different from the current
	 * user name and we are currently fully identifed => josm user becomes
	 * partially identified  
	 */
	@Test 
	public void initFromPreferences_4() {
		JosmUserIdentityManager im = JosmUserIdentityManager.getInstance()

        // for this test we disable the listener
		Main.pref.removePreferenceChangeListener im

		im.setFullyIdentified "test1", new UserInfo(id: 1)
		
		Main.pref.put "osm-server.url", "http://api.openstreetmap.org"
		Main.pref.put "osm-server.username", "test2"
		
		im.initFromPreferences()
		
		assert im.isPartiallyIdentified()
	}
	
	/**
	 * Preferences include an user name which is the same as the current
	 * user name and we are currently fully identifed => josm user remains
	 * fully identified
	 */
	@Test 
	public void initFromPreferences_5() {
		JosmUserIdentityManager im = JosmUserIdentityManager.getInstance()

        // for this test we disable the listener
		Main.pref.removePreferenceChangeListener im
    	
		im.setFullyIdentified "test1", new UserInfo(id: 1)
		
		Main.pref.put "osm-server.url", "http://api.openstreetmap.org"
		Main.pref.put "osm-server.username", "test1"
		
		im.initFromPreferences()
		
		assert im.isFullyIdentified()
	}
	
	@Test 
	public void apiUrlChanged() {
		JosmUserIdentityManager im = JosmUserIdentityManager.getInstance()
		
		// make sure im is a preference change listener 
		Main.pref.addPreferenceChangeListener im
		
		// reset it 
		im.@userName = null
		im.@userInfo = null
				
		Main.pref.put "osm-server.url", "http://api.openstreetmap.org"
		assert im.isAnonymous()
		
         Main.pref.put "osm-server.url", null
         assert im.isAnonymous()
		
		// reset it 
		im.@userName = "test"
		im.@userInfo = null
		
		Main.pref.put "osm-server.url", "http://api.openstreetmap.org"
		assert im.isPartiallyIdentified()
		assert im.getUserName() == "test"
		
		Main.pref.put "osm-server.url", null
		assert im.isAnonymous()
		
		// reset it 
		im.@userName = "test"
		im.@userInfo = new UserInfo(id:1)
		
		Main.pref.put "osm-server.url", "http://api.openstreetmap.org"
		assert im.isPartiallyIdentified()
		assert im.getUserName() == "test"
		
		// reset it 
		im.@userName = "test"
		im.@userInfo = new UserInfo(id:1)
		
		
		Main.pref.put "osm-server.url", null
		assert im.isAnonymous()				
	}
	
	@Test 
	public void userNameChanged() {
		JosmUserIdentityManager im = JosmUserIdentityManager.getInstance()
		
		// make sure im is a preference change listener 
		Main.pref.addPreferenceChangeListener im
		
		// reset it 
		im.@userName = null
		im.@userInfo = null
		
		Main.pref.put "osm-server.username", "test"
		assert im.isPartiallyIdentified()
		assert im.getUserName() == "test"
		
		Main.pref.put "osm-server.username", null
		assert im.isAnonymous()
		
		// reset it 
		im.@userName = "test1"
		im.@userInfo = null
		
		Main.pref.put "osm-server.username", "test2"
		assert im.isPartiallyIdentified()
		assert im.getUserName() == "test2"
		
		Main.pref.put "osm-server.username", null
		assert im.isAnonymous()
		
		// reset it 
		im.@userName = "test1"
		im.@userInfo = new UserInfo(id:1)
		
		Main.pref.put "osm-server.username", "test2"
		assert im.isPartiallyIdentified()
		assert im.getUserName() == "test2"
		
		// reset it 
		im.@userName = "test1"
		im.@userInfo = new UserInfo(id:1)
		
		
		Main.pref.put "osm-server.username", null
		assert im.isAnonymous()             
	}
}