39 lines
1.3 KiB
C#
39 lines
1.3 KiB
C#
using System;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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namespace JobsJobsJobs.Shared
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{
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/// <summary>
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/// A short ID
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/// </summary>
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public record ShortId(string Id)
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{
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/// <summary>
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/// Validate the format of the short ID
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/// </summary>
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private static readonly Regex ValidShortId =
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new Regex("^[a-z0-9_-]{12}", RegexOptions.Compiled | RegexOptions.IgnoreCase);
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/// <summary>
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/// Create a new short ID
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/// </summary>
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/// <returns>A new short ID</returns>
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public static async Task<ShortId> Create() => new ShortId(await Nanoid.Nanoid.GenerateAsync(size: 12));
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/// <summary>
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/// Try to parse a string of text into a short ID
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/// </summary>
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/// <param name="text">The text of the prospective short ID</param>
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/// <returns>The short ID</returns>
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/// <exception cref="FormatException">If the format is not valid</exception>
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public static ShortId Parse(string text)
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{
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if (text.Length == 12 && ValidShortId.IsMatch(text)) return new ShortId(text);
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throw new FormatException($"The string {text} is not a valid short ID");
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}
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public override string ToString() => Id;
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}
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}
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