using System;
using System.Diagnostics;
using System.Linq;
using BO.AppServer.Metadata.Dto;
using BO.ProcessServer.Business.Enums;
using BO.ProcessServer.Options;
using Quadarax.Foundation.Core.Logging;


namespace BO.ProcessServer.Business.Scenarios
{
    internal class Scenarios
    {
        private Configuration _configuration;
        private ILog _log;

        public Scenarios(Configuration configuration, ILogger logger)
        {
            if (logger == null) throw new ArgumentNullException(nameof(logger));
            _configuration = configuration ?? throw new ArgumentNullException(nameof(configuration));
            _log = logger.GetLogger(GetType());
        }
        
        public bool ExistsScenario(DocumentRDto docInfo)
        {
            if (docInfo == null) throw new ArgumentNullException(nameof(docInfo));
            return _configuration.System.Scenarios.Any(x => MatchScenario(x, docInfo));
        }

        public Configuration.CfgScenario FindScenario(DocumentRDto docInfo)
        {
            return _configuration.System.Scenarios.FirstOrDefault(x => MatchScenario(x, docInfo));
        }


        private bool MatchScenario(Configuration.CfgScenario scenario, DocumentRDto document)
        {

            var match = scenario.AcceptFiltersIfAll;
            foreach (var filter in scenario.AcceptFilters)
            {

                switch (filter.Code)
                {
                        case ScenarioAcceptFilterCodeEnum.PresetWatermarkIs:
                            if (scenario.AcceptFiltersIfAll)
                                match = match && bool.Parse(filter.Value) == document.PresetWatermark;
                            else
                                match = bool.Parse(filter.Value) == document.PresetWatermark;
                            break;
                        case ScenarioAcceptFilterCodeEnum.PresetQualityEq:
                            if (scenario.AcceptFiltersIfAll)
                                match = match && int.Parse(filter.Value) == document.PresetCreditCost;
                            else
                                match = int.Parse(filter.Value) == document.PresetCreditCost;
                            break;
                        case ScenarioAcceptFilterCodeEnum.PresetQualityLt:
                            if (scenario.AcceptFiltersIfAll)
                                match = match && int.Parse(filter.Value) > document.PresetCreditCost;
                            else
                                match = int.Parse(filter.Value) > document.PresetCreditCost;
                            break;
                        case ScenarioAcceptFilterCodeEnum.PresetQualityGt:
                            if (scenario.AcceptFiltersIfAll)
                                match = match && int.Parse(filter.Value) < document.PresetCreditCost;
                            else
                                match = int.Parse(filter.Value) < document.PresetCreditCost;
                            break;
                        case ScenarioAcceptFilterCodeEnum.PresetProcessProfileEq:
                            if (scenario.AcceptFiltersIfAll)
                                match = match && document.PresetProcessProfile == filter.Value;
                            else
                                match = document.PresetProcessProfile == filter.Value;
                            break;
                        case ScenarioAcceptFilterCodeEnum.PresetProcessProfileStarts:
                            if (scenario.AcceptFiltersIfAll)
                                match = match && document.PresetProcessProfile.StartsWith(filter.Value);
                            else
                                match = document.PresetProcessProfile.StartsWith(filter.Value);
                            break;
                        case ScenarioAcceptFilterCodeEnum.PresetProcessProfileEnds:
                            if (scenario.AcceptFiltersIfAll)
                                match = match && document.PresetProcessProfile.EndsWith(filter.Value);
                            else
                                match = document.PresetProcessProfile.EndsWith(filter.Value);
                            break;
                        case ScenarioAcceptFilterCodeEnum.PresetProcessProfileContains:
                            if (scenario.AcceptFiltersIfAll)
                                match = match && document.PresetProcessProfile.Contains(filter.Value);
                            else
                                match = document.PresetProcessProfile.Contains(filter.Value);
                            break;
                        case ScenarioAcceptFilterCodeEnum.PresetTestIs:
                            if (scenario.AcceptFiltersIfAll)
                                match = match && bool.Parse(filter.Value) == document.PresetTest;
                            else
                                match = bool.Parse(filter.Value) == document.PresetTest;
                            break;
                        default:
                            throw new NotSupportedException($"Not supported code '{filter.Code}'");
                }

                if (!scenario.AcceptFiltersIfAll && match)
                    break;
                
            }
            return match;
        }

    }
}