package com.nanri.aiimage.config;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

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

/**
 * task-167：aiimage.http-client.* 配置命名空间契约（plan 10）。
 * 默认值与现状一致；非法值钳制；配置类绑定字段齐全。
 */
class HttpClientPropertiesTest {

    private HttpClientProperties properties;

    @BeforeEach
    void setUp() {
        properties = new HttpClientProperties();
    }

    @Test
    void namespaceDefaultsMatchCurrent() {
        assertEquals(10_000L, properties.getConnectTimeoutMillis(), "connect 默认 10s（与现状一致）");
        assertEquals(60_000L, properties.getReadTimeoutMillis(), "read 默认 60s");
        assertEquals(90_000L, properties.getCallTimeoutMillis(), "call 默认 90s");
        assertEquals(3, properties.getMaxRetries(), "重试默认 3");
        assertEquals(500L, properties.getBaseRetryDelayMillis(), "退避基础延迟 500ms");
    }

    @Test
    void connectTimeoutBounded() {
        assertEquals(10_000L, properties.effectiveConnectTimeoutMillis());
        properties.setConnectTimeoutMillis(1_000);
        assertEquals(1_000L, properties.effectiveConnectTimeoutMillis());
    }

    @Test
    void readTimeoutBounded() {
        assertEquals(60_000L, properties.effectiveReadTimeoutMillis());
        properties.setReadTimeoutMillis(3_600_000);
        assertEquals(3_600_000L, properties.effectiveReadTimeoutMillis());
    }

    @Test
    void retryCountBounded() {
        assertEquals(3, properties.effectiveMaxRetries());
        properties.setMaxRetries(0);
        assertEquals(0, properties.effectiveMaxRetries());
    }

    @Test
    void invalidValuesClamped() {
        properties.setConnectTimeoutMillis(-5);
        assertEquals(1_000L, properties.effectiveConnectTimeoutMillis(), "负数钳制到下限");
        properties.setReadTimeoutMillis(999_999_999L);
        assertEquals(3_600_000L, properties.effectiveReadTimeoutMillis(), "超上限钳制");
        properties.setMaxRetries(99);
        assertEquals(10, properties.effectiveMaxRetries(), "重试钳制到 10");
    }

    @Test
    void callTimeoutBounded() {
        properties.setCallTimeoutMillis(7_200_000);
        assertEquals(7_200_000L, properties.effectiveCallTimeoutMillis());
        properties.setCallTimeoutMillis(0);
        assertEquals(1_000L, properties.effectiveCallTimeoutMillis());
    }

    @Test
    void configClassBindingPrefix() throws Exception {
        var annotation = HttpClientProperties.class
                .getAnnotation(org.springframework.boot.context.properties.ConfigurationProperties.class);
        assertEquals("aiimage.http-client", annotation.prefix(), "绑定 aiimage.http-client 前缀");
        assertTrue(HttpClientProperties.class.isAnnotationPresent(
                org.springframework.stereotype.Component.class), "配置类需注册为组件");
    }

    @Test
    void envOverrideSemantics() {
        // env 覆盖走宽松绑定：设置后 effective 反映新值
        properties.setConnectTimeoutMillis(30_000);
        assertEquals(30_000L, properties.effectiveConnectTimeoutMillis());
    }
}