syntax = "proto3";
package zed.messages;

message Envelope {
    uint32 id = 1;
    optional uint32 responding_to = 2;
    optional uint32 original_sender_id = 3;
    oneof payload {
        Auth auth = 4;
        AuthResponse auth_response = 5;
        ShareWorktree share_worktree = 6;
        ShareWorktreeResponse share_worktree_response = 7;
        OpenWorktree open_worktree = 8;
        OpenWorktreeResponse open_worktree_response = 9;
        OpenFile open_file = 10;
        OpenFileResponse open_file_response = 11;
        CloseFile close_file = 12;
        OpenBuffer open_buffer = 13;
        OpenBufferResponse open_buffer_response = 14;
    }
}

message Auth {
    int32 user_id = 1;
    string access_token = 2;
}

message AuthResponse {
    bool credentials_valid = 1;
}

message ShareWorktree {
    Worktree worktree = 1;
}

message ShareWorktreeResponse {
    uint64 worktree_id = 1;
    string access_token = 2;
}

message OpenWorktree {
    uint64 worktree_id = 1;
    string access_token = 2;
}

message OpenWorktreeResponse {
    Worktree worktree = 1;
    uint32 replica_id = 2;
}

message AddGuest {
    uint64 worktree_id = 1;
    User user = 2;
}

message RemoveGuest {
    uint64 worktree_id = 1;
}

message OpenFile {
    uint64 worktree_id = 1;
    string path = 2;
}

message OpenFileResponse {
    uint64 id = 1;
    uint64 mtime = 2;
}

message CloseFile {
    uint64 worktree_id = 1;
    uint64 id = 2;
}

message OpenBuffer {
    uint64 worktree_id = 1;
    uint64 id = 2;
}

message OpenBufferResponse {
    Buffer buffer = 1;
}

message User {
    string github_login = 1;
    string avatar_url = 2;
    uint64 id = 3;
}

message Worktree {
    string root_name = 1;
    repeated Entry entries = 2;
}

message Entry {
    bool is_dir = 1;
    string path = 2;
    uint64 inode = 3;
    Timestamp mtime = 4;
    bool is_symlink = 5;
    bool is_ignored = 6;
}

message Buffer {
    string content = 1;
    repeated Operation history = 2;
}

message Operation {
    oneof variant {
        Edit edit = 1;
    }

    message Edit {
        uint32 replica_id = 1;
        uint32 local_timestamp = 2;
        uint32 lamport_timestamp = 3;
        repeated VectorClockEntry version = 4;
    }

    message VectorClockEntry {
        uint32 replica_id = 1;
        uint32 timestamp = 2;
    }
}

message Timestamp {
    uint64 seconds = 1;
    uint32 nanos = 2;
}