package com.tcm.training.admin.upload;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import org.springframework.mock.web.MockMultipartFile;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;

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

class LocalAppPackageStorageServiceTest {

    @TempDir
    Path tempDir;

    @Test
    void storeShouldWritePackageAndReturnPublicUrl() throws IOException {
        LocalUploadProperties properties = buildProperties();
        LocalAppPackageStorageService service = new LocalAppPackageStorageService(properties);
        MockMultipartFile file = new MockMultipartFile(
                "file",
                "demo.apk",
                "application/vnd.android.package-archive",
                "apk-content".getBytes()
        );

        UploadFileResult result = service.store(file, "ANDROID");

        assertEquals("demo.apk", result.getFileName());
        assertTrue(result.getUrl().startsWith("https://api.example.com/uploads/app-package/android/"));
        Path storedFile = tempDir.resolve(result.getObjectKey());
        assertTrue(Files.exists(storedFile));
        assertEquals("apk-content", new String(Files.readAllBytes(storedFile)));
    }

    @Test
    void storeShouldRejectMissingPublicBaseUrl() {
        LocalUploadProperties properties = buildProperties();
        properties.setPublicBaseUrl(" ");
        LocalAppPackageStorageService service = new LocalAppPackageStorageService(properties);
        MockMultipartFile file = new MockMultipartFile(
                "file",
                "demo.apk",
                "application/vnd.android.package-archive",
                "apk-content".getBytes()
        );

        IllegalArgumentException error = assertThrows(IllegalArgumentException.class, () -> service.store(file, "ANDROID"));

        assertEquals("安装包公网下载地址未配置", error.getMessage());
    }

    @Test
    void storeShouldRejectPackageDirOutsideUploadRoot() {
        LocalUploadProperties properties = buildProperties();
        properties.setAppPackageDir("../packages");
        LocalAppPackageStorageService service = new LocalAppPackageStorageService(properties);
        MockMultipartFile file = new MockMultipartFile(
                "file",
                "demo.apk",
                "application/vnd.android.package-archive",
                "apk-content".getBytes()
        );

        IllegalArgumentException error = assertThrows(IllegalArgumentException.class, () -> service.store(file, "ANDROID"));

        assertEquals("安装包存储目录不合法", error.getMessage());
    }

    @Test
    void buildPublicUrlShouldAvoidDoubleSlash() {
        LocalUploadProperties properties = buildProperties();
        properties.setPublicBaseUrl("https://api.example.com/");
        properties.setPathPrefix("/uploads/");
        LocalAppPackageStorageService service = new LocalAppPackageStorageService(properties);

        String publicUrl = service.buildPublicUrl("app-package/android/2026/04/23/demo.apk");

        assertEquals("https://api.example.com/uploads/app-package/android/2026/04/23/demo.apk", publicUrl);
    }

    private LocalUploadProperties buildProperties() {
        LocalUploadProperties properties = new LocalUploadProperties();
        properties.setDir(tempDir.toString());
        properties.setPathPrefix("/uploads");
        properties.setAppPackageDir("app-package");
        properties.setPublicBaseUrl("https://api.example.com");
        return properties;
    }
}