package foundation.icall.callout;

import foundation.util.ContentBuilder;
import foundation.util.Util;

public class Fields {

	private String value;
	private String[] fields;
	
	public Fields(String value) {
		this.value = value;
		parse();
	}
	
	private void parse() {
		if (Util.isEmpty(value)) {
			return;
		}
		
		value = value.trim().replace("，", ",").replace(";", ",").replace("；", ",");
		fields = value.split(",");
		
		int max = fields.length;
		for (int i = 0; i< max; i++) {
			String segment = fields[i];
			fields[i] = segment.trim();
		}
	}
	
	public String getFieldPairsString(String oneTable, String anotherTable) {
		ContentBuilder builder = new ContentBuilder(" and ");
		
		for (String field: fields) {
			builder.append(oneTable + "." + field + "=" + anotherTable + "." + field);
		}
		
		return builder.toString();
	}
}