package com.fasterxml.jackson.datatype.joda.cfg;

import java.util.Arrays;

import org.joda.time.DateTimeZone;
import org.joda.time.DateTimeFieldType;
import org.joda.time.format.DateTimeFormatter;
import org.joda.time.format.ISODateTimeFormat;
import org.joda.time.format.ISOPeriodFormat;

Simple container class that holds both default formatter information
and explicit overrides caller has set for the Joda module to register.
Note that changes to configuration instance MUST be made before
registering the module; changes after registration may not have effect
on actual settings used.
Since:
2.5/**
 * Simple container class that holds both default formatter information
 * and explicit overrides caller has set for the Joda module to register.
 * Note that changes to configuration instance <b>MUST</b> be made before
 * registering the module; changes after registration may not have effect
 * on actual settings used.
 *
 * @since 2.5
 */
public class FormatConfig
{
    private final static DateTimeZone DEFAULT_TZ = DateTimeZone.getDefault();

    // Matching wrappers for more information needed with formatter
    
    public final static JacksonJodaDateFormat DEFAULT_DATEONLY_FORMAT
        = createUTC(ISODateTimeFormat.date());

    public final static JacksonJodaDateFormat DEFAULT_TIMEONLY_FORMAT
        = createUTC(ISODateTimeFormat.time());

    /* 28-Jul-2015, tatu: As per [datatype-joda#70], there is difference between
     *    "dateTime()" and "dateTimeParser()"... so we need to differentiate between
     *    parser/generator it seems.
     */
    public final static JacksonJodaDateFormat DEFAULT_DATETIME_PARSER
        = createUTC(ISODateTimeFormat.dateTimeParser());

    public final static JacksonJodaDateFormat DEFAULT_DATETIME_PRINTER
        = createUTC(ISODateTimeFormat.dateTime());

    
Deprecated:
Since 2.6.1/**
     * @deprecated Since 2.6.1
     */
    @Deprecated
    public final static JacksonJodaDateFormat DEFAULT_DATETIME_FORMAT = DEFAULT_DATETIME_PRINTER;
    
    // should these differ from ones above? Presumably should use local timezone or... ?

    public final static JacksonJodaDateFormat DEFAULT_LOCAL_DATEONLY_FORMAT
        = createDefaultTZ(ISODateTimeFormat.date());

    public final static JacksonJodaDateFormat DEFAULT_LOCAL_TIMEONLY_PRINTER
        = createDefaultTZ(ISODateTimeFormat.time());

    public final static JacksonJodaDateFormat DEFAULT_LOCAL_TIMEONLY_PARSER
        = createDefaultTZ(ISODateTimeFormat.localTimeParser());
    
    public final static JacksonJodaDateFormat DEFAULT_LOCAL_DATETIME_PRINTER
        = createDefaultTZ(ISODateTimeFormat.dateTime());

    public final static JacksonJodaDateFormat DEFAULT_LOCAL_DATETIME_PARSER
        = createDefaultTZ(ISODateTimeFormat.localDateOptionalTimeParser());

    public final static JacksonJodaPeriodFormat DEFAULT_PERIOD_FORMAT
        = new JacksonJodaPeriodFormat(ISOPeriodFormat.standard());

    public final static JacksonJodaDateFormat DEFAULT_YEAR_MONTH_FORMAT
            = new JacksonJodaDateFormat(ISODateTimeFormat.yearMonth());

    public final static JacksonJodaDateFormat DEFAULT_MONTH_DAY_FORMAT
            = createMonthDayFormat();

    // // // And then some wrapper methods for improved diagnostics, and possible
    // // // default settings for things like "withOffsetParsed()" (see
    // // // [dataformat-joda#75] for more information)
    
    private final static JacksonJodaDateFormat createUTC(DateTimeFormatter f) {
        return new JacksonJodaDateFormat(f.withZoneUTC());
    }

    private final static JacksonJodaDateFormat createDefaultTZ(DateTimeFormatter f) {
        return new JacksonJodaDateFormat(f.withZone(DEFAULT_TZ));
    }

    private final static JacksonJodaDateFormat createMonthDayFormat()
    {
        return new JacksonJodaDateFormat(ISODateTimeFormat.forFields(
                Arrays.asList(DateTimeFieldType.monthOfYear(), DateTimeFieldType.dayOfMonth()),
                true, true));
    }
}