| using Repoverse.Core.Model; |
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|
| namespace Repoverse.Core; |
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| public sealed record RepoverseUri |
| { |
| public const string Scheme = "repoverse"; |
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| public RepoId? Repo { get; init; } |
| public string? Path { get; init; } |
| public int? Line { get; init; } |
| public int? Room { get; init; } |
| public (int X, int Y, int Z)? Location { get; init; } |
|
|
| public static RepoverseUri Parse(string text) |
| { |
| const string prefix = Scheme + "://"; |
| if (!text.StartsWith(prefix, StringComparison.OrdinalIgnoreCase)) |
| throw new FormatException($"Not a {Scheme} URI: '{text}'."); |
| var rest = text[prefix.Length..]; |
|
|
| if (rest.StartsWith('@')) |
| { |
| var p = rest[1..].Split(','); |
| if (p.Length != 3) throw new FormatException("Location must be @x,y,z."); |
| return new RepoverseUri { Location = (int.Parse(p[0]), int.Parse(p[1]), int.Parse(p[2])) }; |
| } |
|
|
| int? line = null, room = null; |
| var hash = rest.IndexOf('#'); |
| if (hash >= 0) |
| { |
| var frag = rest[(hash + 1)..]; |
| if (!frag.StartsWith('L') || !int.TryParse(frag[1..], out var l)) throw new FormatException($"Bad fragment '#{frag}'."); |
| line = l; |
| rest = rest[..hash]; |
| } |
| var q = rest.IndexOf('?'); |
| if (q >= 0) |
| { |
| foreach (var kv in rest[(q + 1)..].Split('&')) |
| if (kv.StartsWith("room=") && int.TryParse(kv[5..], out var r)) room = r; |
| else throw new FormatException($"Unknown query '{kv}'."); |
| rest = rest[..q]; |
| } |
|
|
| var parts = rest.Split('/', 3); |
| if (parts.Length < 2 || parts[0].Length == 0 || parts[1].Length == 0) throw new FormatException("Expected owner/repo."); |
| var path = parts.Length == 3 && parts[2].Length > 0 |
| ? string.Join('/', parts[2].Split('/').Select(Uri.UnescapeDataString)) |
| : null; |
| return new RepoverseUri { Repo = new RepoId(Uri.UnescapeDataString(parts[0]), Uri.UnescapeDataString(parts[1])), Path = path, Line = line, Room = room }; |
| } |
|
|
| public override string ToString() |
| { |
| if (Location is var (x, y, z)) return $"{Scheme}: |
| var s = $"{Scheme}://{Uri.EscapeDataString(Repo!.Value.Owner)}/{Uri.EscapeDataString(Repo.Value.Name)}"; |
| if (Path != null) s += "/" + string.Join('/', Path.Split('/').Select(Uri.EscapeDataString)); |
| if (Room != null) s += $"?room={Room}"; |
| if (Line != null) s += $"#L{Line}"; |
| return s; |
| } |
|
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| |
| public string? GitHubUrl(string branch = "HEAD") => Repo is not { } r ? null |
| : Path == null ? $"https://github.com/{r.Owner}/{r.Name}" |
| : $"https://github.com/{r.Owner}/{r.Name}/blob/{branch}/{Path}{(Line is { } l ? $"#L{l}" : "")}"; |
| } |
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