syntax = "proto3";
package zed.messages;

message Envelope {
    uint32 id = 1;
    optional uint32 responding_to = 2;
    oneof payload {
        Auth auth = 3;
        AuthResponse auth_response = 4;
        ShareWorktree share_worktree = 5;
        ShareWorktreeResponse share_worktree_response = 6;
        OpenWorktree open_worktree = 7;
        OpenWorktreeResponse open_worktree_response = 8;
        OpenBuffer open_buffer = 9;
        OpenBufferResponse open_buffer_response = 10;
    }
}

message Auth {
    uint64 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;
}

message OpenBuffer {
    uint64 worktree_id = 1;
    bytes path = 2;
}

message OpenBufferResponse {
    Buffer buffer = 1;
}

message Worktree {
    repeated bytes paths = 1;
}

message Buffer {
    uint64 id = 1;
    bytes path = 2;
    bytes content = 3;
    repeated Operation history = 4;
}

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;
    }
}