using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using GB5Shared.DTO.Framework.Login;

namespace GB5Shared.DTO.Qualifier
{
    public class QualifierDefinitionDTO
    {
        public int Id { get; set; }

        public string? Code { get; set; }

        public string? Name { get; set; }

        public int EntityId { get; set; }

        public QualifierStage Stage { get; set; }
        public QualifierType QualifierType { get; set; }
        public string ExecutorKey { get; set; } = default!;

        public int Priority { get; set; }

        public bool IsActive { get; set; }

        public string? ConditionExpression { get; set; }

        public int RetryCount { get; set; } = 0;

        public bool StopOnFailure { get; set; } = true;

        public bool RunParallel { get; set; }

        public Dictionary<string, object>? Config { get; set; }
    }

    public enum QualifierStage
    {
        PreValidate = 1,
        PreWorkflow = 2,
        PrePersist = 3,
        PostPersist = 4,
        PreEventPublish = 5
    }

    public class ValidationError
    {
        public string? Field { get; set; }

        public string Message { get; set; } = default!;
    }
    public class QualifierExecutionLog
    {
        public int EntityId { get; set; }

        public int QualifierId { get; set; }

        public QualifierStage Stage { get; set; }

        public bool IsSuccess { get; set; }

        public long DurationMs { get; set; }

        public string? Error { get; set; }

        public DateTime CreatedOn { get; set; }
    }


    public class ExecuteContext

    {
        public string EntityName { get; set; } = null!;
        public int EntityId { get; set; }
        public int ObjectId { get; set; }
        public int EventTypeId { get; set; }
        public int BizTransactionTypeId { get; set; } = -1;
        public string? Comment { get; set; }
        public QualifierType QualifierType { get; set; }
        public object? Data { get; init; }
        private readonly Dictionary<string, object> _bag = new();
        private readonly Dictionary<string, object> _cache = new();

        public void Set(string key, object value) => _bag[key] = value;
        public T Get<T>(string key) => _bag.TryGetValue(key, out var v) ? (T)v : default!;

        public bool TryGetCached<T>(string key, out T value)
        {
            if (_cache.TryGetValue(key, out var v))
            {
                value = (T)v;
                return true;
            }
            value = default!;
            return false;
        }
        public IReadOnlyDictionary<string, object> ExportBag()
          => _bag;
        public IReadOnlyDictionary<string, object?> Facts { get; set; } = new Dictionary<string, object?>();
        public LoginDTO? Login { get; set; }

        public void SetCached(string key, object value) => _cache[key] = value;
    }

    public enum QualifierType
    {
        Validate,
        Enrich,
        Derive,
        Normalize,
        Classify, 
        Workflow,
        Event,
        BusinessRule
    }

}