// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.schema.derived;

import com.yahoo.config.model.application.provider.MockFileRegistry;
import com.yahoo.config.model.deploy.TestProperties;
import com.yahoo.config.model.test.MockApplicationPackage;
import com.yahoo.document.DataType;
import com.yahoo.documentmodel.NewDocumentReferenceDataType;
import com.yahoo.schema.Schema;
import com.yahoo.schema.document.Case;
import com.yahoo.schema.document.MatchType;
import com.yahoo.schema.document.Matching;
import com.yahoo.schema.document.SDDocumentType;
import com.yahoo.schema.document.SDField;
import com.yahoo.schema.document.TemporarySDField;
import com.yahoo.vespa.config.search.vsm.VsmfieldsConfig;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

/**
 * @author geirst
 */
public class VsmFieldsTestCase {

     static Schema createSchema() {
        Schema schema = new Schema("test", MockApplicationPackage.createEmpty(), new MockFileRegistry(), new TestableDeployLogger(), new TestProperties());
        var sdoc = new SDDocumentType("test");
        schema.addDocument(sdoc);
        return schema;
     }
     private static VsmfieldsConfig vsmfieldsConfig(Schema schema) {
         VsmFields vsmFields = new VsmFields(schema);
         VsmfieldsConfig.Builder cfgBuilder = new VsmfieldsConfig.Builder();
         vsmFields.getConfig(cfgBuilder);return cfgBuilder.build();
     }

    @Test
     void reference_type_field_is_unsearchable() {
         Schema schema = createSchema();
         SDField field = new TemporarySDField(schema.getDocument(), "ref_field", NewDocumentReferenceDataType.forDocumentName("parent_type"));
         field.parseIndexingScript("{ summary }");
         schema.getDocument().addField(field);
         VsmfieldsConfig cfg = vsmfieldsConfig(schema);

         assertEquals(1, cfg.fieldspec().size());
         VsmfieldsConfig.Fieldspec fieldSpec = cfg.fieldspec().get(0);
         assertEquals("ref_field", fieldSpec.name());
         assertEquals(VsmfieldsConfig.Fieldspec.Searchmethod.NONE, fieldSpec.searchmethod());
     }

     private void testIndexMatching(Matching matching, VsmfieldsConfig.Fieldspec.Normalize.Enum normalize, String arg1) {
         Schema schema = createSchema();
         SDField field = new TemporarySDField(schema.getDocument(), "f", DataType.STRING);
         field.parseIndexingScript("{ index }");
         field.setMatching(matching);
         schema.getDocument().addField(field);
         VsmfieldsConfig cfg = vsmfieldsConfig(schema);
         VsmfieldsConfig.Fieldspec fieldSpec = cfg.fieldspec().get(0);
         assertEquals("f", fieldSpec.name());
         assertEquals(VsmfieldsConfig.Fieldspec.Searchmethod.AUTOUTF8, fieldSpec.searchmethod());
         assertEquals(normalize, fieldSpec.normalize());
         assertEquals(arg1, fieldSpec.arg1());
     }

     @Test
     void test_exact_string() {
         testIndexMatching(new Matching(MatchType.TEXT),
                 VsmfieldsConfig.Fieldspec.Normalize.LOWERCASE_AND_FOLD, "");
         testIndexMatching(new Matching(MatchType.TEXT).setCase(Case.CASED),
                 VsmfieldsConfig.Fieldspec.Normalize.NONE, "");
         testIndexMatching(new Matching(MatchType.EXACT).setCase(Case.CASED),
                 VsmfieldsConfig.Fieldspec.Normalize.LOWERCASE, "exact");
         testIndexMatching(new Matching(MatchType.WORD),
                 VsmfieldsConfig.Fieldspec.Normalize.LOWERCASE, "word");
         testIndexMatching(new Matching(MatchType.WORD).setCase(Case.CASED),
                 VsmfieldsConfig.Fieldspec.Normalize.NONE, "word");
     }
}