package cn.iocoder.yudao.module.mes.framework.config;

import org.junit.jupiter.api.Test;

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

/**
 * 追溯网址校验器测试。
 * <p>
 * 该校验同时把关配置文件与字典两个来源，若规则被放松，消费者扫不开的标签就会印出去且无法召回，
 * 因此这里逐个守住每个拒绝分支。
 */
class MesTraceUrlValidatorTest {

    @Test
    void acceptsPublicAccessibleUrls() {
        assertValid("http://1.95.78.124:9008/prod/trace.html");
        assertValid("https://trace.example.org/trace.html");
        assertValid("http://42.63.70.90:9003/trace.html");
        assertValid("  http://1.95.78.124:9008/prod/trace.html  "); // 两侧空格应被忽略
    }

    @Test
    void rejectsBlankUrl() {
        assertInvalid("");
        assertInvalid("   ");
        assertInvalid(null);
    }

    @Test
    void rejectsUnreplacedPlaceholdersAndLocalhost() {
        // 从示例配置直接拷来忘记替换，是标签印错地址最常见的原因
        assertInvalid("https://dev.your-domain.com/trace.html");
        assertInvalid("http://example.com/trace.html");
        assertInvalid("http://localhost:48080/trace.html");
        assertInvalid("http://LOCALHOST/trace.html");
    }

    @Test
    void rejectsPrivateAndLoopbackHosts() {
        assertInvalid("http://127.0.0.1:9008/trace.html");
        assertInvalid("http://10.0.0.5/trace.html");
        assertInvalid("http://172.16.0.9/trace.html");
        assertInvalid("http://172.31.255.254/trace.html");
        assertInvalid("http://192.168.0.10:48080/trace.html");
        assertInvalid("http://169.254.1.1/trace.html");
        assertInvalid("http://printer.local/trace.html");
    }

    @Test
    void acceptsHostsJustOutsidePrivateRanges() {
        // 172.15/172.32 不在 172.16.0.0/12 私网段内，不应被误杀
        assertValid("http://172.15.0.1/trace.html");
        assertValid("http://172.32.0.1/trace.html");
        assertValid("http://11.0.0.1/trace.html");
    }

    @Test
    void rejectsUnparseableUrl() {
        assertInvalid("这不是一个地址");
        assertInvalid("/trace.html");
        assertInvalid("trace.html");
    }

    @Test
    void invalidReasonExplainsWhy() {
        assertTrue(MesTraceUrlValidator.invalidReason("http://192.168.1.1/x").orElseThrow().contains("内网"));
        assertTrue(MesTraceUrlValidator.invalidReason("").orElseThrow().contains("未配置"));
        assertTrue(MesTraceUrlValidator.invalidReason("http://localhost/x").orElseThrow().contains("占位符"));
    }

    private void assertValid(String url) {
        assertTrue(MesTraceUrlValidator.isValid(url), "应判定为合法：" + url);
    }

    private void assertInvalid(String url) {
        assertFalse(MesTraceUrlValidator.isValid(url), "应判定为非法：" + url);
    }

}