syntax = "proto3";

package thumbnail_service;

option go_package = "./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);
}

// 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
}