package foundation.data.mapping;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import foundation.util.ContentBuilder;

public class MappingsRuntime {
	  
	private List<FieldMappingRuntime> fieldMappingRuntimes;
	private Map<String, FieldMappingRuntime> fromMap;
    private Map<String, FieldMappingRuntime> toMap;
      
    
    public MappingsRuntime() {
    	fieldMappingRuntimes = new ArrayList<FieldMappingRuntime>();
    	fromMap = new HashMap<String, FieldMappingRuntime>();
    	toMap = new HashMap<String, FieldMappingRuntime>();
    }

	public void addItem(FieldMappingRuntime fieldMappingRuntime) {
		String fromName = fieldMappingRuntime.getFromName();
		String toName = fieldMappingRuntime.getToName();
		
		if (fromName == null || toName == null) {
			return;
		}
		
		fromName = fromName.toLowerCase();
		toName = toName.toLowerCase();
		
		fieldMappingRuntimes.add(fieldMappingRuntime);
		fromMap.put(fromName, fieldMappingRuntime);
		toMap.put(toName, fieldMappingRuntime);
	}
	
	public int[] getFromIndex() {
		int[] result = new int[fieldMappingRuntimes.size()];

		for (int i = 0; i < result.length; i++) {
			FieldMappingRuntime fieldMappingRuntime = fieldMappingRuntimes.get(i);
			result[i] = fieldMappingRuntime.getFromIndex();
		}
		
		return result;
	}

	public List<FieldMappingRuntime> getMappingRuntimeList() {
		return fieldMappingRuntimes;
	}

	public boolean containsFromField(String fieldName) {
		if (fieldName == null) {
			return false;
		}
		
		fieldName = fieldName.toLowerCase();
		return fromMap.containsKey(fieldName);
	}
	
	public boolean containsToField(String fieldName) {
		if (fieldName == null) {
			return false;
		}
		
		fieldName = fieldName.toLowerCase();
		return toMap.containsKey(fieldName);
	}

	public int size() {
		return fieldMappingRuntimes.size();
	}
	
	public String getFromFieldNames(String division) {
		ContentBuilder result = new ContentBuilder(division);
		
		for (FieldMappingRuntime fieldMappingRuntime: fieldMappingRuntimes) {
			String fromName = fieldMappingRuntime.getFromName();
			result.append(fromName);
		}
		
		return result.toString();
	}
	
	public String getToFieldNames(String division, String... additional) {
		ContentBuilder result = new ContentBuilder(division);
		
		for (FieldMappingRuntime fieldMappingRuntime: fieldMappingRuntimes) {
			String toName = fieldMappingRuntime.getToName();
			result.append(toName);
		}
		
		if (additional != null) {
			for (String fieldName: additional) {
				result.append(fieldName);
			}
		}
		
		return result.toString();
	}

}