syntax = "proto3";
package zed.messages;

import "buffer.proto";

message Context {
    repeated ContextOperation operations = 1;
}

message ContextMetadata {
    string context_id = 1;
    optional string summary = 2;
}

message ContextMessageStatus {
    oneof variant {
        Done done = 1;
        Pending pending = 2;
        Error error = 3;
        Canceled canceled = 4;
    }

    message Done {}

    message Pending {}

    message Error {
        string message = 1;
    }

    message Canceled {}
}

message ContextMessage {
    LamportTimestamp id = 1;
    Anchor start = 2;
    LanguageModelRole role = 3;
    ContextMessageStatus status = 4;
}

message SlashCommandOutputSection {
    AnchorRange range = 1;
    string icon_name = 2;
    string label = 3;
    optional string metadata = 4;
}

message ThoughtProcessOutputSection {
    AnchorRange range = 1;
}

message ContextOperation {
    oneof variant {
        InsertMessage insert_message = 1;
        UpdateMessage update_message = 2;
        UpdateSummary update_summary = 3;
        BufferOperation buffer_operation = 5;
        SlashCommandStarted slash_command_started = 6;
        SlashCommandOutputSectionAdded slash_command_output_section_added = 7;
        SlashCommandCompleted slash_command_completed = 8;
        ThoughtProcessOutputSectionAdded thought_process_output_section_added = 9;
    }

    reserved 4;

    message InsertMessage {
        ContextMessage message = 1;
        repeated VectorClockEntry version = 2;
    }

    message UpdateMessage {
        LamportTimestamp message_id = 1;
        LanguageModelRole role = 2;
        ContextMessageStatus status = 3;
        LamportTimestamp timestamp = 4;
        repeated VectorClockEntry version = 5;
    }

    message UpdateSummary {
        string summary = 1;
        bool done = 2;
        LamportTimestamp timestamp = 3;
        repeated VectorClockEntry version = 4;
    }

    message SlashCommandStarted {
        LamportTimestamp id = 1;
        AnchorRange output_range = 2;
        string name = 3;
        repeated VectorClockEntry version = 4;
    }

    message SlashCommandOutputSectionAdded {
        LamportTimestamp timestamp = 1;
        SlashCommandOutputSection section = 2;
        repeated VectorClockEntry version = 3;
    }

    message SlashCommandCompleted {
        LamportTimestamp id = 1;
        LamportTimestamp timestamp = 3;
        optional string error_message = 4;
        repeated VectorClockEntry version = 5;
    }

    message ThoughtProcessOutputSectionAdded {
        LamportTimestamp timestamp = 1;
        ThoughtProcessOutputSection section = 2;
        repeated VectorClockEntry version = 3;
    }

    message BufferOperation {
        Operation operation = 1;
    }
}

message AdvertiseContexts {
    uint64 project_id = 1;
    repeated ContextMetadata contexts = 2;
}

message OpenContext {
    uint64 project_id = 1;
    string context_id = 2;
}

message OpenContextResponse {
    Context context = 1;
}

message CreateContext {
    uint64 project_id = 1;
}

message CreateContextResponse {
    string context_id = 1;
    Context context = 2;
}

message UpdateContext {
    uint64 project_id = 1;
    string context_id = 2;
    ContextOperation operation = 3;
}

message ContextVersion {
    string context_id = 1;
    repeated VectorClockEntry context_version = 2;
    repeated VectorClockEntry buffer_version = 3;
}

message SynchronizeContexts {
    uint64 project_id = 1;
    repeated ContextVersion contexts = 2;
}

message SynchronizeContextsResponse {
    repeated ContextVersion contexts = 1;
}

enum LanguageModelRole {
    LanguageModelUser = 0;
    LanguageModelAssistant = 1;
    LanguageModelSystem = 2;
    reserved 3;
}