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package cdc.mf.checks.atts.name;

import java.util.regex.Pattern;

import cdc.issues.IssueSeverity;
import cdc.issues.checks.CheckContext;
import cdc.issues.checks.CheckResult;
import cdc.issues.checks.SnapshotManager;
import cdc.issues.locations.Location;
import cdc.issues.rules.Rule;
import cdc.mf.checks.IssueDescription;
import cdc.mf.checks.MfAbstractRuleChecker;
import cdc.mf.model.MfNameItem;
import cdc.util.strings.StringUtils;

/**
 * Check that if an {@link MfNameItem} has a name, it does not match a pattern.
 *
 * @author Damien Carbonne
 * @param  The {@link MfNameItem} type.
 */
public abstract class AbstractNameMustNotMatchPattern extends MfAbstractRuleChecker {
    public static final IssueSeverity SEVERITY = IssueSeverity.MAJOR;

    private final Pattern pattern;

    protected AbstractNameMustNotMatchPattern(SnapshotManager manager,
                                              Class objectClass,
                                              Rule rule,
                                              String regex) {
        super(manager,
              objectClass,
              rule);
        this.pattern = Pattern.compile(regex);
    }

    @Override
    protected final String getHeader(O object) {
        return getTheNameOfHeader(object);
    }

    @Override
    public CheckResult check(CheckContext context,
                             O object,
                             Location location) {
        final String name = object.getName();
        if (!StringUtils.isNullOrEmpty(name)) {
            final boolean matches = pattern.matcher(name).matches();
            if (matches) {
                final IssueDescription.Builder description = IssueDescription.builder();

                description.header(getHeader(object))
                           .value(name)
                           .violation("matches " + pattern.pattern());

                add(issue().description(description)
                           .location(location)
                           .build());
                return CheckResult.FAILURE;
            } else {
                return CheckResult.SUCCESS;
            }
        } else {
            return CheckResult.SUCCESS;
        }
    }
}