103 lines
3.6 KiB
C#
103 lines
3.6 KiB
C#
using BankSampahApp.Models;
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namespace BankSampahApp.Services;
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/// <summary>
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/// Implementation of validation service
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/// </summary>
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public class ValidationService : IValidationService
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{
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/// <inheritdoc/>
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public ValidationResult ValidateStatistics(StatisticsModel statistics)
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{
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if (statistics == null)
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return ValidationResult.Failure("Statistics model is required");
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var errors = new List<string>();
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if (statistics.TotalUsers < 0)
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errors.Add("Total users cannot be negative");
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if (statistics.WasteCollected < 0)
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errors.Add("Waste collected cannot be negative");
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if (statistics.RewardsDistributed < 0)
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errors.Add("Rewards distributed cannot be negative");
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if (statistics.EnvironmentImpact < 0 || statistics.EnvironmentImpact > 100)
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errors.Add("Environment impact must be between 0 and 100");
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return errors.Any() ? ValidationResult.Failure(errors) : ValidationResult.Success();
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}
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/// <inheritdoc/>
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public ValidationResult ValidateFeature(FeatureModel feature)
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{
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if (feature == null)
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return ValidationResult.Failure("Feature model is required");
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var errors = new List<string>();
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var titleValidation = ValidateRequiredString(feature.Title, "Title", 100);
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if (!titleValidation.IsValid)
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errors.AddRange(titleValidation.Errors);
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var descriptionValidation = ValidateRequiredString(feature.Description, "Description", 500);
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if (!descriptionValidation.IsValid)
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errors.AddRange(descriptionValidation.Errors);
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var iconValidation = ValidateRequiredString(feature.Icon, "Icon", 10);
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if (!iconValidation.IsValid)
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errors.AddRange(iconValidation.Errors);
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return errors.Any() ? ValidationResult.Failure(errors) : ValidationResult.Success();
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}
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/// <inheritdoc/>
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public ValidationResult ValidateDateRange(DateTime startDate, DateTime endDate)
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{
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var errors = new List<string>();
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if (startDate > endDate)
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errors.Add("Start date cannot be greater than end date");
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if (startDate > DateTime.UtcNow)
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errors.Add("Start date cannot be in the future");
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if (endDate > DateTime.UtcNow)
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errors.Add("End date cannot be in the future");
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var maxRangeDays = 365; // 1 year maximum
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if ((endDate - startDate).Days > maxRangeDays)
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errors.Add($"Date range cannot exceed {maxRangeDays} days");
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return errors.Any() ? ValidationResult.Failure(errors) : ValidationResult.Success();
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}
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/// <inheritdoc/>
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public ValidationResult ValidateRequiredString(string? value, string fieldName, int maxLength = int.MaxValue)
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{
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var errors = new List<string>();
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if (string.IsNullOrWhiteSpace(value))
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errors.Add($"{fieldName} is required");
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else if (value.Length > maxLength)
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errors.Add($"{fieldName} cannot exceed {maxLength} characters");
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return errors.Any() ? ValidationResult.Failure(errors) : ValidationResult.Success();
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}
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/// <inheritdoc/>
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public ValidationResult ValidateNumericRange(decimal value, string fieldName, decimal minValue = 0, decimal maxValue = decimal.MaxValue)
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{
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var errors = new List<string>();
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if (value < minValue)
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errors.Add($"{fieldName} cannot be less than {minValue}");
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if (value > maxValue)
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errors.Add($"{fieldName} cannot be greater than {maxValue}");
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return errors.Any() ? ValidationResult.Failure(errors) : ValidationResult.Success();
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}
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} |