package com.mitchellbosecke.pebble.extension.filters;

import com.mitchellbosecke.pebble.extension.Filter;
import com.mitchellbosecke.pebble.template.EvaluationContext;
import com.mitchellbosecke.pebble.template.PebbleTemplate;

import java.time.Instant;
import java.util.Date;
import java.util.List;
import java.util.Map;

public class TimestampFilter implements Filter {
    @Override
    public Object apply(Object input, Map<String, Object> args, PebbleTemplate self, EvaluationContext context, int lineNumber) {
        if (input instanceof Instant) {
            return Date.from((Instant)input);
        }
        throw new IllegalArgumentException("invalid input");
    }

    @Override
    public List<String> getArgumentNames() {
        return null;
    }
}