package com.tourguide.modules.user.service;

import com.tourguide.common.exception.BusinessException;
import com.tourguide.config.properties.StorageProperties;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import org.springframework.mock.web.MockMultipartFile;

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

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;

class MiniAvatarStorageServiceTest {
    @TempDir
    Path tempDirectory;

    @Test
    void shouldStoreSupportedAvatarInConfiguredDirectory() throws Exception {
        StorageProperties properties = createProperties();
        MiniAvatarStorageService storageService = new MiniAvatarStorageService(properties);
        MockMultipartFile file = new MockMultipartFile(
                "file", "avatar.png", "image/png", new byte[]{1, 2, 3});

        String publicPath = storageService.store(file);

        assertThat(publicPath).startsWith("/uploads/avatars/").endsWith(".png");
        String filename = publicPath.substring(publicPath.lastIndexOf('/') + 1);
        assertThat(Files.exists(tempDirectory.resolve(filename))).isTrue();
    }

    @Test
    void shouldRejectUnsupportedAvatarType() {
        MiniAvatarStorageService storageService = new MiniAvatarStorageService(createProperties());
        MockMultipartFile file = new MockMultipartFile(
                "file", "avatar.txt", "text/plain", new byte[]{1, 2, 3});

        assertThatThrownBy(() -> storageService.store(file))
                .isInstanceOf(BusinessException.class)
                .hasMessage("头像仅支持 JPG、PNG 或 WebP 格式");
    }

    private StorageProperties createProperties() {
        StorageProperties properties = new StorageProperties();
        properties.setAvatarDirectory(tempDirectory.toString());
        properties.setAvatarPublicPath("/uploads/avatars");
        return properties;
    }
}