acdream/src/AcDream.Core/Plugins/PluginManifest.cs

73 lines
2.2 KiB
C#

using System.Text.Json;
using System.Text.Json.Serialization;
namespace AcDream.Core.Plugins;
public sealed record PluginManifest(
string Id,
string DisplayName,
string Version,
string EntryDll,
int ApiVersion,
IReadOnlyList<string> Dependencies)
{
public static PluginManifest Parse(string json)
{
PluginManifestDto? dto;
try
{
dto = JsonSerializer.Deserialize<PluginManifestDto>(json, JsonOptions);
}
catch (JsonException ex)
{
throw new PluginManifestException($"invalid json: {ex.Message}", ex);
}
if (dto is null)
throw new PluginManifestException("manifest is empty");
Require(dto.Id, nameof(dto.Id));
Require(dto.DisplayName, nameof(dto.DisplayName));
Require(dto.Version, nameof(dto.Version));
Require(dto.EntryDll, nameof(dto.EntryDll));
if (dto.ApiVersion <= 0)
throw new PluginManifestException("apiVersion must be >= 1");
return new PluginManifest(
dto.Id!,
dto.DisplayName!,
dto.Version!,
dto.EntryDll!,
dto.ApiVersion,
dto.Dependencies ?? Array.Empty<string>());
}
private static void Require(string? value, string fieldName)
{
if (string.IsNullOrWhiteSpace(value))
throw new PluginManifestException(
$"missing required field: {char.ToLowerInvariant(fieldName[0])}{fieldName[1..]}");
}
private static readonly JsonSerializerOptions JsonOptions = new()
{
PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
PropertyNameCaseInsensitive = true,
};
private sealed class PluginManifestDto
{
public string? Id { get; set; }
public string? DisplayName { get; set; }
public string? Version { get; set; }
public string? EntryDll { get; set; }
public int ApiVersion { get; set; }
public IReadOnlyList<string>? Dependencies { get; set; }
}
}
public sealed class PluginManifestException : Exception
{
public PluginManifestException(string message) : base(message) { }
public PluginManifestException(string message, Exception inner) : base(message, inner) { }
}