package kr.co.vividnext.sodalive.content

import kr.co.vividnext.sodalive.i18n.translation.SourceTextNormalizer
import org.junit.jupiter.api.Assertions.assertEquals
import org.junit.jupiter.api.Test
import org.mockito.Mockito

class LanguageDetectionCacheServiceTest {
    @Test
    fun shouldReuseCachedLanguageDetectionForSameNormalizedText() {
        val repository = Mockito.mock(LanguageDetectionResultRepository::class.java)
        val service = LanguageDetectionCacheService(repository)
        val sourceHash = SourceTextNormalizer.hash("Hello world")

        Mockito.`when`(
            repository.findBySourceHashAndProviderAndNormalizationVersion(
                sourceHash = sourceHash,
                provider = "papago",
                normalizationVersion = SourceTextNormalizer.NORMALIZATION_VERSION
            )
        ).thenReturn(
            LanguageDetectionResult(
                sourceHash = sourceHash,
                sourceTextSample = "Hello world",
                detectedLanguage = "en",
                provider = "papago",
                confidence = null,
                normalizationVersion = SourceTextNormalizer.NORMALIZATION_VERSION
            )
        )

        var providerCalls = 0
        val detected = service.detectWithCache("Hello   world") {
            providerCalls++
            "ko"
        }

        assertEquals("en", detected)
        assertEquals(0, providerCalls)
        Mockito.verify(repository, Mockito.never()).save(Mockito.any(LanguageDetectionResult::class.java))
    }
}