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

namespace ScadaLink.CLI.Commands;

public static class DataConnectionCommands
{
    public static Command Build(Option<string> contactPointsOption, Option<string> formatOption)
    {
        var command = new Command("data-connection") { Description = "Manage data connections" };

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

        return command;
    }

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

    private static Command BuildCreate(Option<string> contactPointsOption, Option<string> formatOption)
    {
        var nameOption = new Option<string>("--name") { Description = "Connection name", Required = true };
        var protocolOption = new Option<string>("--protocol") { Description = "Protocol (e.g. OpcUa)", Required = true };
        var configOption = new Option<string?>("--configuration") { Description = "Connection configuration JSON" };

        var cmd = new Command("create") { Description = "Create a new data connection" };
        cmd.Add(nameOption);
        cmd.Add(protocolOption);
        cmd.Add(configOption);
        cmd.SetAction(async (ParseResult result) =>
        {
            var name = result.GetValue(nameOption)!;
            var protocol = result.GetValue(protocolOption)!;
            var config = result.GetValue(configOption);
            return await CommandHelpers.ExecuteCommandAsync(
                result, contactPointsOption, formatOption,
                new CreateDataConnectionCommand(name, protocol, config));
        });
        return cmd;
    }

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

    private static Command BuildAssign(Option<string> contactPointsOption, Option<string> formatOption)
    {
        var connectionIdOption = new Option<int>("--connection-id") { Description = "Data connection ID", Required = true };
        var siteIdOption = new Option<int>("--site-id") { Description = "Site ID", Required = true };

        var cmd = new Command("assign") { Description = "Assign a data connection to a site" };
        cmd.Add(connectionIdOption);
        cmd.Add(siteIdOption);
        cmd.SetAction(async (ParseResult result) =>
        {
            var connectionId = result.GetValue(connectionIdOption);
            var siteId = result.GetValue(siteIdOption);
            return await CommandHelpers.ExecuteCommandAsync(
                result, contactPointsOption, formatOption,
                new AssignDataConnectionToSiteCommand(connectionId, siteId));
        });
        return cmd;
    }
}