module;

export module lsp.protocol.common.message;

import std;

import lsp.protocol.common.basic_types;

export namespace lsp::protocol
{
    // LSP Error Codes
    enum class ErrorCodes : int
    {
        ParseError = -32700,
        InvalidRequest = -32600,
        MethodNotFound = -32601,
        InvalidParams = -32602,
        InternalError = -32603,

        JsonrpcReservedErrorRangeStart = -32099,
        ServerNotInitialized = -32002,
        UnknownErrorCode = -32001,
        JsonrpcReservedErrorRangeEnd = -32000,
        LspReservedErrorRangeStart = -32899,
        RequestFailed = -32803,
        ServerCancelled = -32802,
        ContentModified = -32801,
        RequestCancelled = -32800,
        LspReservedErrorRangeEnd = -32800
    };

    struct RequestMessage
    {
        string jsonrpc = "2.0";
        RequestId id;
        string method;
        std::optional<LSPAny> params;
    };

    struct ResponseError
    {
        string jsonrpc = "2.0";
        integer code;
        string message;
        std::optional<LSPAny> data;
    };

    struct ResponseMessage
    {
        string jsonrpc = "2.0";
        std::optional<RequestId> id;
        std::optional<LSPAny> result;
        std::optional<ResponseError> error;
    };

    struct NotificationMessage
    {
        string jsonrpc = "2.0";
        string method;
        std::optional<LSPAny> params;
    };

    // $/cancelRequest notification params
    struct CancelParams
    {
        // The request id to cancel.
        RequestId id; // integer | string
    };
}