//
//	text_manipulate.bsh
//
//					Sep/02/2015
//
// --------------------------------------------------------------
import	java.text.DateFormat;
import	java.text.SimpleDateFormat;
// --------------------------------------------------------------
// [2]:
Map text_to_dict_proc (fname_in)
{
	String delimit = "[\t]";

	dict_aa = text_to_dict_proc_exec (fname_in,delimit);

	return	dict_aa;
}

// --------------------------------------------------------------
// [2-4]:
Map text_to_dict_proc_exec (fname_in,delimit)
{
	Map dict_aa = new HashMap ();

	FileReader in_file = new FileReader (fname_in);
	BufferedReader	buff = new BufferedReader (in_file);
	String	line;

	while ((line = buff.readLine ()) != null)
		{
		Map dict_unit = new HashMap ();
		String [] cols = line.split (delimit,-1);

		dict_unit.put ("name",cols[1]);
		dict_unit.put ("population",cols[2]);
		dict_unit.put ("date_mod",cols[3]);

		dict_aa.put (cols[0],dict_unit);
		}

	return	dict_aa;
}

// --------------------------------------------------------------
// [4]:
void dict_display_proc (Map dict_aa)
{
	String delimit = "\t";
	Set set_aaa = dict_aa.keySet ();

	Set <String> ss = new TreeSet <String> (set_aaa);

	for (Object key_aa: ss)
		{
		String key = (String)key_aa;

		if ((!key.equals ("_id")) && (!key.equals ("_rev")))
			{
			Map dict_unit = dict_aa.get (key_aa);

			String str_out = unit_to_string_proc (delimit,key_aa,dict_unit);
			System.out.println (str_out);
			}
		}
}

// --------------------------------------------------------------
Map dict_append_proc (dict_aa,
	String key_aa,String name,int population,String date_mod)
{
	String str_population = Integer.toString (population);

	Map dict_unit = new HashMap ();

	dict_unit.put ("name",name);
	dict_unit.put ("population",str_population);
	dict_unit.put ("date_mod",date_mod);

	dict_aa.put (key_aa,dict_unit);

	return	dict_aa;
}

// --------------------------------------------------------------
// [8]:
dict_to_text_proc (file_out,dict_aa)
{
	String delimit = "\t";
	dict_to_text_proc_exec (file_out,dict_aa,delimit);
}

// --------------------------------------------------------------
// [8-4]:
dict_to_text_proc_exec (file_out,dict_aa,delimit)
{
	File file = new File (file_out);
	FileWriter filewriter = new FileWriter (file);
	BufferedWriter bw = new BufferedWriter (filewriter);

	PrintWriter pw = new PrintWriter (bw);

	Set set_aaa = dict_aa.keySet ();


	for (Object key_aa: set_aaa)
		{
		dict_unit = dict_aa.get (key_aa);

		String str_out = unit_to_string_proc (delimit,key_aa,dict_unit);

		pw.println (str_out);
		}

	pw.close ();
}

// --------------------------------------------------------------
// [8-4-6]:
String unit_to_string_proc (delimit,key_aa,dict_unit)
{
	String str_out = key_aa + delimit;
	str_out += dict_unit.get ("name") + delimit;
	str_out += dict_unit.get ("population") + delimit;
	str_out += dict_unit.get ("date_mod");

	return	str_out;
}

// --------------------------------------------------------------
Map dict_update_proc (dict_aa,String key_aa,int population)
{
	String str_population = Integer.toString (population);

	if (dict_aa.containsKey (key_aa))
		{
		String today = get_current_date_proc ();

		Map dict_unit = dict_aa.get (key_aa);

		dict_unit.put ("population",str_population);
		dict_unit.put ("date_mod",today);

		dict_aa.put (key_aa,dict_unit);
		}

	return	dict_aa;
}

// --------------------------------------------------------------
String get_current_date_proc ()
{
	Date ddx = new Date ();
	DateFormat dfm = new SimpleDateFormat ("yyyy-MM-dd");
	String	str_ddx = dfm.format (ddx);

	return	str_ddx;
}

// --------------------------------------------------------------
Map dict_delete_proc (dict_aa,String key_aa)
{
	if (dict_aa.containsKey (key_aa))
		{
		dict_aa.remove (key_aa);
		}

	return	dict_aa;
}

// --------------------------------------------------------------
// [10]:
Map csv_to_dict_proc (fname_in)
{
	String delimit = "[,]";

	dict_aa = text_to_dict_proc_exec (fname_in,delimit);

	return	dict_aa;
}

// --------------------------------------------------------------
// [12]:
dict_to_csv_proc (file_out,dict_aa)
{
	String delimit = ",";
	dict_to_text_proc_exec (file_out,dict_aa,delimit);
}

// --------------------------------------------------------------
String file_to_str_proc (String fname_in)
{
	FileReader in_file = new FileReader (fname_in);
	BufferedReader	buff = new BufferedReader (in_file);
	String	line;

	String str_in = "";
	while ((line = buff.readLine ()) != null)
		{
		str_in += line;
		}

	return	str_in;
}


// --------------------------------------------------------------
file_write_proc (String file_out,String str_out)
{
	File file = new File (file_out);
	FileWriter filewriter = new FileWriter (file);
	BufferedWriter bw = new BufferedWriter (filewriter);

	PrintWriter pw = new PrintWriter (bw);
	pw.println (str_out);
	pw.close ();
}

// --------------------------------------------------------------