package com.condado.newsletter.service

import org.assertj.core.api.Assertions.assertThat
import org.junit.jupiter.api.Test
import org.springframework.beans.factory.annotation.Value
import java.nio.file.Files
import java.nio.file.Path

class LlamaConfigurationBindingTest {

    @Test
    fun should_bindLlamaBaseUrlAndModelWithoutFallback_when_readingServiceValueAnnotations() {
        val constructor = LlamaPreviewService::class.java.declaredConstructors.single()
        val baseUrlExpression = constructor.parameters[1].getAnnotation(Value::class.java).value
        val modelExpression = constructor.parameters[2].getAnnotation(Value::class.java).value

        assertThat(baseUrlExpression).isEqualTo("\${llama.base-url}")
        assertThat(modelExpression).isEqualTo("\${llama.model}")
    }

    @Test
    fun should_referenceEnvironmentPlaceholdersWithoutFallback_when_readingApplicationYaml() {
        val yaml = Files.readString(Path.of("src/main/resources/application.yml"))

        assertThat(yaml).contains("base-url: \${LLAMA_BASE_URL}")
        assertThat(yaml).contains("model: \${LLAMA_MODEL}")
        assertThat(yaml).doesNotContain("LLAMA_BASE_URL:http://localhost:11434")
        assertThat(yaml).doesNotContain("LLAMA_MODEL:gemma3:4b")
    }
}