using Console.Waterworks.Core.Assistants;
using Console.Waterworks.Core.Constants;
using Console.Waterworks.Core.Loggers;
using Console.Waterworks.Core.Models;
using Console.Waterworks.Core.Specialists;
using System;

namespace Console.Waterworks.Core.CoOrdinators
{
    class CoOrdinator
    {
        CoOrdinatorAssistant _assistant = new CoOrdinatorAssistant();
        ProgramInfoSpecialist _progInfoSpec = new ProgramInfoSpecialist();
        ConsoleIOSpecialist _consoleSpec = new ConsoleIOSpecialist();
        CommandsSpecialist _commSpec = new CommandsSpecialist();
        HelpSpecialist _helpSpec = new HelpSpecialist();
        CW_Logger _logger = new CW_Logger();

        internal void PrepareConsoleEnvironment()
        {
            _logger.LogInfoMessage($"Preparing console..");
            _consoleSpec.PrepareConsoleEnvironment();
            _consoleSpec.SetInputPrompt($"{_progInfoSpec.GetProductName()}> ");
            _logger.LogSuccessMessage("Console environment is now setup");
        }

        internal void DisplayProgramInfo()
        {
            _logger.LogInfoMessage($"Displaying program information..");
            _assistant.SetConsoleTitle(_logger, _progInfoSpec, _consoleSpec);
            _assistant.OutputProgramInfo(_logger, _progInfoSpec, _consoleSpec);
        }

        internal void RunProgram(string commandsNamespace)
        {
            _logger.LogInfoMessage("Attempting to building commands library..");
            var commandClasses = _commSpec.GetCommandClasses(commandsNamespace);
            var commandLibraries = _commSpec.GetCommandLibraries(commandClasses);
            _assistant.LogCommandGatheringAttempt(commandClasses, commandLibraries, _logger);
            while (true)
            {
                var consoleInput = _consoleSpec.GetInputFromUser();
                if (string.IsNullOrEmpty(consoleInput)) continue;
                try
                {
                    _logger.LogInfoMessage("Parsing input from user..");
                    var command = new Command(consoleInput, commandsNamespace, CW_Constants.COMMAND_CLASS_NAME);
                    _logger.LogInfoMessage("Attempting to execute command..");
                    var result = _commSpec.ExecuteCommand(commandsNamespace, command, commandClasses, commandLibraries, _consoleSpec);
                    _consoleSpec.WriteOutputToConsole(result);
                    _logger.LogSuccessMessage("Command has been executed.");
                    _logger.LogNoteMessage("An error message does not mean the command did not execute properly or sucessfully.");
                }
                catch (Exception ex)
                {
                    _logger.LogErrorMessage("Command was not successfully executed. See the error message in console for further details");
                    _consoleSpec.WriteErrorMessage(ex.Message);
                }
                _logger.LogInfoMessage("Resetting the console's formatting..");
                _logger.LogNoteMessage("This is to make sure no error messages or one-off formating change corrupts the console environment.");
                _consoleSpec.ResetConsoleColour();
                _logger.LogSuccessMessage("Console's formating has been reset");
            }
        }

        internal string DisplayHelpSection(string commandsNamespace)
        {
            _logger.LogInfoMessage("Attempting to display help section..");
            var commandClasses = _commSpec.GetCommandClasses(commandsNamespace);
            if (commandClasses.Count == 0)
            {
                _logger.LogErrorMessage("Unable to find any help information. Make sure the commands hace the correct atrributes applied");
                _consoleSpec.WriteErrorSuffix();
                return "Unable to find help information";
            }
            _logger.LogSuccessMessage("Found help information");
            _logger.LogInfoMessage("Attempting to display the help information..");
            _consoleSpec.WriteOutputToConsole("Displaying Help section...");
            _consoleSpec.LineBreak();
            var commandMembers = _helpSpec.GetCommandMembers(commandClasses);
            foreach (var command in commandMembers)
            {
                if (_helpSpec.ListCommand(command) == true)
                {
                    _consoleSpec.WriteOutputToConsole($"Command Name: {command.Name}");
                    _consoleSpec.WriteOutputToConsole($"Parameters: {_helpSpec.GetParametres(command)}");
                    _consoleSpec.WriteOutputToConsole($"Description: {_helpSpec.GetDescription(command)}");
                    _consoleSpec.WriteOutputToConsole($"Example: {_helpSpec.GetUsageExamples(command)}");
                    _consoleSpec.LineBreak();
                }
            }
            _logger.LogSuccessMessage("Help section displayed in the console");
            return "End of Help section.";
        }
    }
}