using System.CommandLine;
using System.CommandLine.Parsing;
using ScadaLink.Commons.Messages.Management;

namespace ScadaLink.CLI.Commands;

public static class ExternalSystemCommands
{
    public static Command Build(Option<string> contactPointsOption, Option<string> formatOption)
    {
        var command = new Command("external-system") { Description = "Manage external systems" };

        command.Add(BuildList(contactPointsOption, formatOption));
        command.Add(BuildCreate(contactPointsOption, formatOption));
        command.Add(BuildDelete(contactPointsOption, formatOption));

        return command;
    }

    private static Command BuildList(Option<string> contactPointsOption, Option<string> formatOption)
    {
        var cmd = new Command("list") { Description = "List all external systems" };
        cmd.SetAction(async (ParseResult result) =>
        {
            return await CommandHelpers.ExecuteCommandAsync(
                result, contactPointsOption, formatOption, new ListExternalSystemsCommand());
        });
        return cmd;
    }

    private static Command BuildCreate(Option<string> contactPointsOption, Option<string> formatOption)
    {
        var nameOption = new Option<string>("--name") { Description = "System name", Required = true };
        var urlOption = new Option<string>("--endpoint-url") { Description = "Endpoint URL", Required = true };
        var authTypeOption = new Option<string>("--auth-type") { Description = "Auth type (ApiKey, BasicAuth)", Required = true };
        var authConfigOption = new Option<string?>("--auth-config") { Description = "Auth configuration JSON" };

        var cmd = new Command("create") { Description = "Create an external system" };
        cmd.Add(nameOption);
        cmd.Add(urlOption);
        cmd.Add(authTypeOption);
        cmd.Add(authConfigOption);
        cmd.SetAction(async (ParseResult result) =>
        {
            var name = result.GetValue(nameOption)!;
            var url = result.GetValue(urlOption)!;
            var authType = result.GetValue(authTypeOption)!;
            var authConfig = result.GetValue(authConfigOption);
            return await CommandHelpers.ExecuteCommandAsync(
                result, contactPointsOption, formatOption,
                new CreateExternalSystemCommand(name, url, authType, authConfig));
        });
        return cmd;
    }

    private static Command BuildDelete(Option<string> contactPointsOption, Option<string> formatOption)
    {
        var idOption = new Option<int>("--id") { Description = "External system ID", Required = true };
        var cmd = new Command("delete") { Description = "Delete an external system" };
        cmd.Add(idOption);
        cmd.SetAction(async (ParseResult result) =>
        {
            var id = result.GetValue(idOption);
            return await CommandHelpers.ExecuteCommandAsync(
                result, contactPointsOption, formatOption, new DeleteExternalSystemCommand(id));
        });
        return cmd;
    }
}