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This commit is contained in:
Dhananjaya99
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using Fitness_core_BE.DTOs.Auth;
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using System.Text.Json;
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using Fitness_core_BE.Exceptions;
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namespace Fitness_core_BE.Helpers
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{
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public class DataExtractor
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{
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public static string GetRequiredString(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element))
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throw new BadRequestException($"Missing required field '{key}'.");
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if (element.ValueKind != JsonValueKind.String)
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throw new BadRequestException($"Field '{key}' must be a string.");
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var value = element.GetString();
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if (string.IsNullOrWhiteSpace(value))
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return "";
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//throw new BadRequestException($"Field '{key}' cannot be empty.");
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return value;
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}
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public static string? GetOptionalString(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element) || element.ValueKind == JsonValueKind.Null)
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return null;
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if (element.ValueKind == JsonValueKind.String)
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{
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var value = element.GetString();
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return string.IsNullOrWhiteSpace(value) ? null : value;
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}
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if (element.ValueKind == JsonValueKind.Number)
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return element.GetRawText();
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throw new ArgumentException($"Field '{key}' must be a string.");
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}
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public static string? GetOptionalStringByKeys(
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Dictionary<string, JsonElement> data,
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params string[] keys)
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{
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foreach (var key in keys)
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{
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if (data.ContainsKey(key))
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return GetOptionalString(data, key);
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}
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return null;
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}
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public static string GetRequiredStringByKeys(
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Dictionary<string, JsonElement> data,
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params string[] keys)
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{
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var value = GetOptionalStringByKeys(data, keys);
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if (!string.IsNullOrWhiteSpace(value))
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return value;
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throw new BadRequestException($"Missing required field '{keys[0]}'.");
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}
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// ===================== INT =====================
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public static int GetRequiredInt(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element))
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throw new BadRequestException($"Missing required field '{key}'.");
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if (element.TryGetInt32(out var value))
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return value;
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if (element.ValueKind == JsonValueKind.String &&
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int.TryParse(element.GetString(), out value))
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{
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return value;
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}
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throw new BadRequestException($"Field '{key}' must be a valid integer.");
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}
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public static int? GetNullableInt(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element) || element.ValueKind == JsonValueKind.Null)
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return null;
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if (element.TryGetInt32(out var value))
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return value;
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if (element.ValueKind == JsonValueKind.String &&
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int.TryParse(element.GetString(), out value))
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{
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return value;
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}
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throw new BadRequestException($"Field '{key}' must be a valid integer.");
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}
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// ===================== FLOAT =====================
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public static float GetRequiredFloat(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element))
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throw new BadRequestException($"Missing required field '{key}'.");
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if (element.TryGetSingle(out var value))
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return value;
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// Allow numeric strings: "12.5"
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if (element.ValueKind == JsonValueKind.String &&
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float.TryParse(element.GetString(), out value))
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{
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return value;
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}
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throw new BadRequestException($"Field '{key}' must be a valid float.");
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}
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// ===================== DECIMAL =====================
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public static decimal GetRequiredDecimal(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element))
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throw new ArgumentException($"Missing required field '{key}'.");
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if (element.TryGetDecimal(out var value))
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return value;
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// Allow numeric strings: "12.5"
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if (element.ValueKind == JsonValueKind.String &&
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decimal.TryParse(element.GetString(), out value))
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{
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return value;
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}
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throw new ArgumentException($"Field '{key}' must be a valid decimal.");
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}
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public static decimal? GetOptionalDecimal(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element) || element.ValueKind == JsonValueKind.Null)
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return null;
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if (element.TryGetDecimal(out var value))
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return value;
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if (element.ValueKind == JsonValueKind.String &&
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decimal.TryParse(element.GetString(), out value))
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{
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return value;
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}
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throw new ArgumentException($"Field '{key}' must be a valid decimal.");
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}
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public static decimal? GetOptionalDecimalByKeys(
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Dictionary<string, JsonElement> data,
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params string[] keys)
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{
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foreach (var key in keys)
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{
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if (data.ContainsKey(key))
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return GetOptionalDecimal(data, key);
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}
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return null;
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}
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// ===================== BOOLEAN =====================
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public static bool GetRequiredBool(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element))
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throw new BadRequestException($"Missing required field '{key}'.");
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if (element.ValueKind == JsonValueKind.True) return true;
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if (element.ValueKind == JsonValueKind.False) return false;
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// Allow string values: "true" / "false"
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if (element.ValueKind == JsonValueKind.String &&
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bool.TryParse(element.GetString(), out var value))
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{
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return value;
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}
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throw new BadRequestException($"Field '{key}' must be a valid boolean.");
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}
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public static bool? GetOptionalBool(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element) || element.ValueKind == JsonValueKind.Null)
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return null;
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if (element.ValueKind == JsonValueKind.True) return true;
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if (element.ValueKind == JsonValueKind.False) return false;
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if (element.ValueKind == JsonValueKind.String &&
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bool.TryParse(element.GetString(), out var value))
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{
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return value;
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}
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throw new BadRequestException($"Field '{key}' must be a valid boolean.");
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}
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// ===================== GUID =====================
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public static Guid GetRequiredGuid(
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Dictionary<string, JsonElement> data,
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string key)
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{
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var value = GetRequiredString(data, key);
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if (!Guid.TryParse(value, out var guid))
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throw new BadRequestException($"Field '{key}' must be a valid GUID.");
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return guid;
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}
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/// <summary>A JSON array of GUID strings, or null if the key is absent/null. An
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/// empty array is returned as an empty list (distinct from "field not sent"),
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/// which matters for "clear this plan's places" updates.</summary>
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public static List<Guid>? GetOptionalGuidList(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element) || element.ValueKind == JsonValueKind.Null)
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return null;
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if (element.ValueKind != JsonValueKind.Array)
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throw new BadRequestException($"Field '{key}' must be an array.");
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var result = new List<Guid>();
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foreach (var item in element.EnumerateArray())
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{
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if (item.ValueKind != JsonValueKind.String || !Guid.TryParse(item.GetString(), out var guid))
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throw new BadRequestException($"Field '{key}' must contain only GUID strings.");
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result.Add(guid);
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}
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return result;
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}
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// ===================== DATETIME =====================
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public static DateTime GetRequiredDateTime(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element))
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throw new BadRequestException($"Missing required field '{key}'.");
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if (element.ValueKind == JsonValueKind.Null)
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throw new BadRequestException($"Field '{key}' cannot be null.");
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// ISO 8601 string
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if (element.ValueKind == JsonValueKind.String &&
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DateTime.TryParse(element.GetString(), out var date))
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{
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return date;
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}
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// Native JSON DateTime
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if (element.TryGetDateTime(out date))
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{
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return date;
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}
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throw new BadRequestException($"Field '{key}' must be a valid DateTime.");
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}
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public static DateTime? GetOptionalDateTime(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element) || element.ValueKind == JsonValueKind.Null)
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return null;
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if (element.ValueKind == JsonValueKind.String &&
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DateTime.TryParse(element.GetString(), out var date))
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{
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return date;
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}
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if (element.TryGetDateTime(out date))
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return date;
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throw new ArgumentException($"Field '{key}' must be a valid DateTime.");
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}
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// ===================== DATEONLY =====================
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public static DateOnly GetRequiredDateOnly(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element))
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throw new BadRequestException($"Missing required field '{key}'.");
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if (element.ValueKind == JsonValueKind.Null)
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throw new BadRequestException($"Field '{key}' cannot be null.");
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DateTime date;
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// ISO 8601 string (e.g., "2025-02-25")
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if (element.ValueKind == JsonValueKind.String &&
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DateTime.TryParse(element.GetString(), out date))
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{
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return DateOnly.FromDateTime(date);
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}
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if (element.TryGetDateTime(out date))
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{
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return DateOnly.FromDateTime(date);
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}
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throw new BadRequestException($"Field '{key}' must be a valid date.");
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}
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/// <summary>
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/// A date of birth, rejected if it is today or in the future. Progress predictions
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/// divide by the member's age, so a zero age has to be stopped at the write rather
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/// than surfacing later as a failure in an unrelated screen.
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/// </summary>
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public static DateOnly GetRequiredDateOfBirth(
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Dictionary<string, JsonElement> data,
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string key)
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{
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var birthDate = GetRequiredDateOnly(data, key);
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if (birthDate >= DateOnly.FromDateTime(DateTime.UtcNow))
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throw new BadRequestException(
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$"Field '{key}' must be a date in the past.");
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return birthDate;
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}
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/// <summary>
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/// Same as GetRequiredDateOfBirth, but missing/null/blank is allowed and returns null
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/// instead of throwing -- a birthday isn't needed to run a subscription, so gyms that
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/// don't collect it at signup shouldn't be blocked from adding a member.
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/// </summary>
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public static DateOnly? GetOptionalDateOfBirth(
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Dictionary<string, JsonElement> data,
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string key)
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{
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if (!data.TryGetValue(key, out var element) || element.ValueKind == JsonValueKind.Null)
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return null;
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if (element.ValueKind == JsonValueKind.String && string.IsNullOrWhiteSpace(element.GetString()))
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return null;
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return GetRequiredDateOfBirth(data, key);
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}
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// ===================== USER ID FROM HttpContext =====================
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public static Guid GetUserIdFromContext(HttpContext httpContext)
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{
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if (httpContext == null) throw new ArgumentNullException(nameof(httpContext));
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var userIdFromContext = httpContext.Items["UserId"]?.ToString()
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?? httpContext.User?.FindFirst("UserId")?.Value;
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if (string.IsNullOrWhiteSpace(userIdFromContext) || !Guid.TryParse(userIdFromContext, out var userId))
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{
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throw new UnauthorizedAccessException("User is not authenticated. Please login and send cookie.");
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}
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return userId;
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}
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//============================AuthResponce EXtractor============
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public static AuthResponse GetRequiredAuthResponse(Dictionary<string, JsonElement> data)
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{
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AuthResponse authResponse = new AuthResponse
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{
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StatusCode = GetRequiredInt(data, "StatusCode"),
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Success = GetRequiredBool(data, "success"),
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Message = GetRequiredString(data, "message"),
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Data = data
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};
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return authResponse;
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}
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}
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}
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