import com.slack.api.Slack;
import com.slack.api.methods.request.files.FilesUploadV2Request;
import com.slack.api.methods.response.files.FilesUploadResponse;
import com.slack.api.methods.response.files.FilesUploadV2Response;

import java.io.File;
import java.util.Arrays;
import java.util.List;

public class Sample {
  public static void main(String[] args) throws Exception {

    String token = System.getenv("SLACK_BOT_TOKEN");
    Slack slack = Slack.getInstance();

    // Legacy files.upload code example
    FilesUploadResponse legacyResponse = slack.methods(token).filesUpload(r -> r
        .file(new File("./logo.png"))
        .filename("logo.png")
        .title("Company Logo")
        .initialComment("Here is the latest version of our company logo!")
        .channels(Arrays.asList("C123456"))
    );
    com.slack.api.model.File legacyFile = legacyResponse.getFile();

    // V2 wrapper is mostly the same!
    FilesUploadV2Response v2Response = slack.methods(token).filesUploadV2(r -> r
        .file(new File("./logo.png"))
        .filename("logo.png")
        .title("Company Logo")
        .initialComment("Here is the latest version of our company logo!")
        .channel("C123456") // sharing a file in multiple channels is no longer supported
    );
    com.slack.api.model.File v2File = v2Response.getFile();

    // Now you can upload multiple files at a time!
    FilesUploadV2Response v2MultiFilesResponse = slack.methods(token).filesUploadV2(r -> r
        .fileUploads(Arrays.asList(
            FilesUploadV2Request.FileUpload.builder()
                .file(new File("./logo.png"))
                .filename("logo.png")
                .title("Company Logo")
                .build(),
            FilesUploadV2Request.FileUpload.builder()
                .file(new File("./2022-03-01-meeting-minutes.md"))
                .filename("2022-03-01-meeting-minutes.md")
                .title("2022-03-01 Meeting Minutes")
                .snippetType("text")
                .build()
        ))
        .initialComment("Here are the files I mentioned in the meeting :wave:")
        .channel("C123456")
    );
    List<com.slack.api.model.File> v2Files = v2MultiFilesResponse.getFiles();
  }
}