syntax = "proto3";

package thumbnail_service;

option go_package = "./proto";

import "google/api/annotations.proto";

// Enum for the file type
enum FileType {
    FILE_TYPE_UNSPECIFIED = 0;  // Default value for unspecified file type
    IMAGE = 1;                  // Image file
    VIDEO = 2;                  // Video file
    PDF = 3;                    // PDF file
}

// Service definition
service ThumbnailService {
    rpc GenerateThumbnail(ThumbnailRequest) returns (ThumbnailResponse) {
        option (google.api.http) = {
            post: "/v1/thumbnail"
            body: "*"
        };
    }
    rpc OcrFile(OCRFileRequest) returns (OCRFileResponse) {
        option (google.api.http) = {
            post: "/v1/ocr"
            body: "*"
        };
    }
}

// Request message for generating thumbnails
message ThumbnailRequest {
    bytes file_content = 1; // File content as bytes
    FileType file_type = 2; // File type (image, video, pdf)
    int32 max_width = 3;     // Optional max width for resizing (0 means no limit)
    int32 max_height = 4;    // Optional max height for resizing (0 means no limit)
}

// Response message for the thumbnail generation
message ThumbnailResponse {
    string message = 1;           // Message indicating success or failure
    bytes thumbnail_content = 2;  // Thumbnail content as bytes
}

//create a ocred version of a document
message OCRFileRequest {
    bytes file_content = 1;     //file
    FileType file_type = 2;     //file type for future adding of maybe other stuff?
    bool cleanUp = 3;           // if whitespace should be normalized and cleaned from "useless chars"
}

//Response message of ocred document
message OCRFileResponse {
    string message = 1;         // Status Message
    bytes ocr_content = 2;      //data of the ocred file
    string text_content = 3;    //text of the file
}