/* $This file is distributed under the terms of the license in /doc/license.txt$ */

package freemarker.ext.dump;

import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.fail;

import java.io.StringReader;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.SortedMap;
import java.util.TreeMap;

import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.junit.Before;
import org.junit.Test;

import freemarker.core.Environment;
import freemarker.ext.dump.BaseDumpDirective.DateType;
import freemarker.ext.dump.BaseDumpDirective.Key;
import freemarker.ext.dump.BaseDumpDirective.Type;
import freemarker.template.Configuration;
import freemarker.template.Template;

public class DumpAllDirectiveTest {

    private Template template;

    @Before
    public void setUp() {
        Configuration config = new Configuration();
        String templateStr = "";
        try {
            template = new Template("template", new StringReader(templateStr), config);
        } catch (Exception e) {
            fail(e.getMessage());
        }
        // Turn off log messages to console
        Logger.getLogger(BaseDumpDirective.class).setLevel(Level.OFF);
    }

    @Test 
    public void dumpDataModel() {
 
        Map<String, Object> dataModel = new HashMap<String, Object>();
        
        String stringName = "dog";
        String stringVal = "Rover";
        dataModel.put(stringName, stringVal);
        
        String boolName = "isLoggedIn";
        boolean boolVal = true;
        dataModel.put(boolName, boolVal);
        
        String intName = "tabCount";
        int intVal = 7;
        dataModel.put(intName, intVal);
        
        String dateName = "now";
        Date dateVal = new Date();
        dataModel.put(dateName, dateVal);
        
        String listName = "fruit";
        List<String> listVal = new ArrayList<String>();
        listVal.add("apples");
        listVal.add("bananas");
        listVal.add("oranges");
        dataModel.put(listName, listVal);
        
        SortedMap<String, Object> expectedDump = new TreeMap<String, Object>();
        
        Map<String, Object> expectedStringDump = new HashMap<String, Object>();
        expectedStringDump.put(Key.TYPE.toString(), Type.STRING);
        expectedStringDump.put(Key.VALUE.toString(), stringVal);
        expectedDump.put(stringName, expectedStringDump);
        
        Map<String, Object> expectedBoolDump = new HashMap<String, Object>();
        expectedBoolDump.put(Key.TYPE.toString(), Type.BOOLEAN);
        expectedBoolDump.put(Key.VALUE.toString(), boolVal);
        expectedDump.put(boolName, expectedBoolDump);
        
        Map<String, Object> expectedIntDump = new HashMap<String, Object>();
        expectedIntDump.put(Key.TYPE.toString(), Type.NUMBER);
        expectedIntDump.put(Key.VALUE.toString(), intVal);
        expectedDump.put(intName, expectedIntDump);
        
        Map<String, Object> expectedDateDump = new HashMap<String, Object>();
        expectedDateDump.put(Key.TYPE.toString(), Type.DATE);
        expectedDateDump.put(Key.DATE_TYPE.toString(), DateType.UNKNOWN);
        expectedDateDump.put(Key.VALUE.toString(), dateVal);
        expectedDump.put(dateName, expectedDateDump);
        
        Map<String, Object> expectedListDump = new HashMap<String, Object>();
        expectedListDump.put(Key.TYPE.toString(), Type.SEQUENCE);
        List<Map<String, Object>> listItemsExpectedDump = new ArrayList<Map<String, Object>>(listVal.size());
        for ( String str : listVal ) {
            Map<String, Object> itemDump = new HashMap<String, Object>();
            itemDump.put(Key.TYPE.toString(), Type.STRING);
            itemDump.put(Key.VALUE.toString(), str);
            listItemsExpectedDump.add(itemDump);            
        }
        expectedListDump.put(Key.VALUE.toString(), listItemsExpectedDump);
        expectedDump.put(listName, expectedListDump);
        
        SortedMap<String, Object> dump = getDump(dataModel);
        assertEquals(expectedDump, dump);
        
        // Test sorting of the data model
        List<String> expectedKeys = new ArrayList<String>(expectedDump.keySet());
        List<String> actualKeys = new ArrayList<String>(dump.keySet());
        assertEquals(expectedKeys, actualKeys);
        
    }
    
    
    /////////////////////////// Private helper methods ///////////////////////////

    private SortedMap<String, Object> getDump(Map<String, Object> dataModel) {
        try {
            Environment env = template.createProcessingEnvironment(dataModel, new StringWriter());
            return new DumpAllDirective().getDataModelDump(env);     
        } catch (Exception e) {
            fail(e.getMessage());
            return null;
        }             
    }    

}