using static MFiles.Grpc.Samples.MFilesValues;

namespace MFiles.Grpc.Samples.Recipes;

/// <summary>
/// Recipe "errors": provoke "not found" and "access denied" and show the decoded M-Files errors.
/// </summary>
public static class Errors
{
    // M-Files error codes this recipe checks for.
    private const uint NotFound = 0x8004000B;
    private const uint AccessDenied = 0x800407E4;

    public static async Task RunAsync(MFilesSettings settings, string[] args)
    {
        await using var connection = await MFilesConnection.ConnectAsync(settings, RecipeHelpers.ClientName);

        // [START errors]
        // Not found: a document ID that does not exist.
        var objects = new IRPCObjectOperations.IRPCObjectOperationsClient(connection.CallInvoker);
        try
        {
            await objects.GetObjectInfoAndPropertiesAsync(new GetObjectInfoAndPropertiesRequest
            {
                ObjId = ObjId(0, 999_999_999),
                LatestVersion = true,
            });
            throw new InvalidOperationException("Expected the call to fail.");
        }
        catch (MFilesException e) when (e.Has(NotFound))
        {
            Print("Not found", e);
        }

        // Access denied: an administrative call by a user who is not a vault administrator.
        var admin = new IRPCPropertyDefsAdmin.IRPCPropertyDefsAdminClient(connection.CallInvoker);
        try
        {
            await admin.GetPropertyDefsAdminAsync(new GetPropertyDefsAdminRequest());
            Console.WriteLine("Access denied: not provoked, the user is a vault administrator");
        }
        catch (MFilesException e) when (e.Has(AccessDenied))
        {
            Print("Access denied", e);
        }
        // [END errors]
    }

    // [START print-error]
    private static void Print(string label, MFilesException e)
    {
        Console.WriteLine($"{label}: gRPC status {e.StatusCode}, M-Files error {e.ErrorCodeHex} ({e.ErrorCode})");
        Console.WriteLine($"  Message: {e.Message.ReplaceLineEndings(" ")}");
        Console.WriteLine($"  Error stack, original error first: " +
            string.Join(", ", e.ErrorCodes.Distinct().Select(code => $"0x{code:X8}")));
    }
    // [END print-error]
}