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package ext.test4j.hamcrest.core;

import ext.test4j.hamcrest.Description;
import ext.test4j.hamcrest.Factory;
import ext.test4j.hamcrest.Matcher;
import ext.test4j.hamcrest.TypeSafeDiagnosingMatcher;

public class Every extends TypeSafeDiagnosingMatcher> {
	private final Matcher matcher;

	public Every(Matcher matcher) {
		this.matcher= matcher;
	}
	
	@Override
	public boolean matchesSafely(Iterable collection, Description mismatchDescription) {
		for (T t : collection) {
			if (!matcher.matches(t)) {
				mismatchDescription.appendText("an item ");
				matcher.describeMismatch(t, mismatchDescription);
				return false;
			}
		}
		return true;
	}

	public void describeTo(Description description) {
		description.appendText("every item is ").appendDescriptionOf(matcher);
	}
	
	
	 /**
   * @param itemMatcher A matcher to apply to every element in a collection.
   * @return Evaluates to TRUE for a collection in which every item matches itemMatcher 
   */
	@Factory
	public static  Matcher> everyItem(final Matcher itemMatcher) {
		return new Every(itemMatcher);
	}

}