using System;
using System.ComponentModel.DataAnnotations;
using System.Resources;
using Kreta.BusinessLogic.Utils;
using Kreta.Enums.ManualEnums;
using Kreta.Resources;

namespace Kreta.BusinessLogic.Classes
{
    public class KretaRequiredAttribute : RequiredAttribute
    {
        public int StringResourcesId { get; set; }
        public override string FormatErrorMessage(string name)
        {
            return StringResourcesId != 0 ? StringResourcesUtils.GetString(StringResourcesId) : base.FormatErrorMessage(name);
        }

        public KretaRequiredAttribute()
        {
            ErrorMessageResourceName = nameof(ErrorResource.Required);
            ErrorMessageResourceType = typeof(ErrorResource);
        }

        public KretaRequiredAttribute(Type resourceType, string resourceName)
        {
            ErrorMessageResourceName = resourceName;
            ErrorMessageResourceType = resourceType;
        }
    }

    public class KretaStringLengthAttribute : StringLengthAttribute
    {
        public KretaStringLengthAttribute(int maximumLength) : base(maximumLength)
        {

        }

        public int StringResourcesId { get; set; }
        public override string FormatErrorMessage(string name)
        {
            return string.IsNullOrWhiteSpace(ErrorMessageResourceName) ? StringResourcesUtils.GetString(StringResourcesId) : base.FormatErrorMessage(ErrorMessageResourceName);
        }
    }

    public class KretaCompareAttribute : CompareAttribute
    {
        public KretaCompareAttribute(string otherProperty) : base(otherProperty)
        {

        }

        public int StringResourcesId { get; set; }
        public override string FormatErrorMessage(string name)
        {

            return StringResourcesUtils.GetString(StringResourcesId);
        }
    }

    public class KretaRangeAttribute : RangeAttribute
    {
        public KretaRangeAttribute(int minimum, int maximum) : base(minimum, maximum)
        {

        }
        public KretaRangeAttribute(double minimum, double maximum) : base(minimum, maximum)
        {

        }

        public int StringResourcesId { get; set; }

        public override string FormatErrorMessage(string name)
        {
            return string.IsNullOrWhiteSpace(ErrorMessageResourceName) ? StringResourcesUtils.GetString(StringResourcesId) : base.FormatErrorMessage(ErrorMessageResourceName);
        }
    }

    public class KretaParameterizedRangeAttribute : RangeAttribute
    {
        public double Min { get; set; }
        public double Max { get; set; }

        public KretaParameterizedRangeAttribute(int minimum, int maximum) : base(minimum, maximum)
        {
            Min = minimum;
            Max = maximum;
        }
        public KretaParameterizedRangeAttribute(double minimum, double maximum) : base(minimum, maximum)
        {
            Min = minimum;
            Max = maximum;
        }

        public int StringResourcesId { get; set; }

        public override string FormatErrorMessage(string name)
        {
            return string.IsNullOrWhiteSpace(ErrorMessageResourceName) ? StringResourcesUtils.GetString(StringResourcesId) :
                                                                    string.Format(base.ErrorMessageString, Min.ToString(), Max.ToString());
        }
    }

    public class KretaDateRangeAttribute : ValidationAttribute
    {
        public int StringResourcesId { get; set; }
        public string Min { get; set; }
        public string Max { get; set; }
        private DateTime? Minimum
        {
            get
            {
                DateTime val;
                if (DateTime.TryParse(Min, out val))
                {
                    return val;
                }
                return null;
            }
        }
        private DateTime? Maximum
        {
            get
            {
                DateTime val;
                if (DateTime.TryParse(Max, out val))
                {
                    return val;
                }
                return null;
            }
        }

        public KretaDateRangeAttribute()
        {
            Min = "1/1/1900";
            Max = "1/1/2100";
        }

        public override bool IsValid(object value)
        {
            if (value == null)
            {
                return true;
            }
            var val = (DateTime)value;
            var minOk = (!Minimum.HasValue || val >= Minimum);
            var maxOk = (!Maximum.HasValue || val <= Maximum);
            return minOk && maxOk;
        }

        public override string FormatErrorMessage(string name)
        {
            return string.IsNullOrWhiteSpace(ErrorMessageResourceName) ? StringResourcesUtils.GetString(StringResourcesId) : base.FormatErrorMessage(ErrorMessageResourceName);
        }
    }

    public class DateRangeAttribute : ValidationAttribute
    {
        public string ErrorMessageResourceName { get; set; }
        public Type ErrorMessageResourceType { get; set; }
        public string Min { get; set; }
        public string Max { get; set; }
        private DateTime? Minimum
        {
            get
            {
                DateTime val;
                if (DateTime.TryParse(Min, out val))
                {
                    return val;
                }
                return null;
            }
        }
        private DateTime? Maximum
        {
            get
            {
                DateTime val;
                if (DateTime.TryParse(Max, out val))
                {
                    return val;
                }
                return null;
            }
        }

        public DateRangeAttribute()
        {
            Min = "1/1/1900";
            Max = "1/1/2100";
        }

        public override bool IsValid(object value)
        {
            if (value == null)
            {
                return true;
            }
            var val = (DateTime)value;
            var minOk = (!Minimum.HasValue || val >= Minimum);
            var maxOk = (!Maximum.HasValue || val <= Maximum);
            return minOk && maxOk;
        }

        public override string FormatErrorMessage(string name)
        {
            ResourceManager rm = new ResourceManager(ErrorMessageResourceType);
            return rm.GetString(ErrorMessageResourceName);
        }
    }

    public class KretaMinLengthAttribute : MinLengthAttribute
    {
        public KretaMinLengthAttribute(int length) : base(length)
        {

        }

        public int StringResourcesId { get; set; }
        public override string FormatErrorMessage(string name)
        {

            return StringResourcesUtils.GetString(StringResourcesId);
        }
    }

    public class KretaMaxLengthAttribute : MaxLengthAttribute
    {
        public KretaMaxLengthAttribute(int length) : base(length)
        {

        }

        public int StringResourcesId { get; set; }
        public override string FormatErrorMessage(string name)
        {

            return StringResourcesUtils.GetString(StringResourcesId);
        }
    }

    public class KretaDataTypeAttribute : DataTypeAttribute
    {
        public KretaDataTypeAttribute(DataType dataType) : base(dataType)
        {

        }

        public KretaDataTypeAttribute() : base(DataType.Custom)
        {

        }

        public new KretaCustomDataTypeEnum CustomDataType { get; set; }

        public int StringResourcesId { get; set; }
        public override string FormatErrorMessage(string name)
        {

            return StringResourcesUtils.GetString(StringResourcesId);
        }

        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
        {
            if (DataType == DataType.Custom)
            {
                if (value != null)
                {
                    var isValid = true;
                    switch (CustomDataType)
                    {
                        case KretaCustomDataTypeEnum.Integer:
                            isValid = int.TryParse(value.ToString(), out _);
                            break;
                        case KretaCustomDataTypeEnum.Decimal:
                            isValid = decimal.TryParse(value.ToString(), out _);
                            break;
                        case KretaCustomDataTypeEnum.Float:
                            isValid = float.TryParse(value.ToString(), out _);
                            break;
                        case KretaCustomDataTypeEnum.Double:
                            isValid = double.TryParse(value.ToString(), out _);
                            break;
                    }

                    if (!isValid)
                    {
                        return new ValidationResult("Must be numeric");
                    }
                }

                return ValidationResult.Success;
            }

            return base.IsValid(value, validationContext);
        }
    }

    public class KretaRequiredIfAttribute : KretaRequiredAttribute
    {
        private string PropertyName { get; }
        private object DesiredValue { get; }

        public KretaRequiredIfAttribute(string propertyName, object desiredvalue)
        {
            PropertyName = propertyName;
            DesiredValue = desiredvalue;
        }

        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
        {
            object instance = validationContext.ObjectInstance;
            Type type = instance.GetType();
            object propertyValue = type.GetProperty(PropertyName).GetValue(instance, null);
            if (propertyValue.ToString() == DesiredValue.ToString())
            {
                ValidationResult result = base.IsValid(value, validationContext);
                return result;
            }
            return ValidationResult.Success;
        }
    }

    public class KretaRequiredIfOtherPropertyIsNullAttribute : KretaRequiredAttribute
    {
        private string PropertyName { get; }

        public KretaRequiredIfOtherPropertyIsNullAttribute(string propertyName)
        {
            PropertyName = propertyName;
        }

        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
        {
            object instance = validationContext.ObjectInstance;
            Type type = instance.GetType();
            object propertyValue = type.GetProperty(PropertyName).GetValue(instance, null);
            if (propertyValue == null)
            {
                ValidationResult result = base.IsValid(value, validationContext);
                return result;
            }
            return ValidationResult.Success;
        }
    }

    public class KretaRegularExpressionAttribute : RegularExpressionAttribute
    {
        public KretaRegularExpressionAttribute(string pattern) : base(pattern)
        {

        }

        public int StringResourcesId { get; set; }
        public override string FormatErrorMessage(string name)
        {
            return string.IsNullOrWhiteSpace(ErrorMessageResourceName) ? StringResourcesUtils.GetString(StringResourcesId) : base.FormatErrorMessage(ErrorMessageResourceName);
        }
    }

    //public class KretaIntegerAttribute<T> : ValidationAttribute<T> where T : class
    //{
    //    protected override ValidationResult IsValid(object value, ValidationContext validationContext)
    //    {
    //        if (value != null)
    //        {
    //            decimal val;
    //            var isNumeric = decimal.TryParse(value.ToString(), out val);

    //            if (!isNumeric)
    //            {
    //                return new ValidationResult("Must be numeric");
    //            }
    //        }

    //        return ValidationResult.Success;
    //    }

    //    public int StringResourcesId { get; set; }
    //    public override string FormatErrorMessage(string name)
    //    {

    //        return StringResourcesUtils.GetString(StringResourcesId);
    //    }
    //}

}