feat.Penguin Logistics Online Network Distribution System

PenguinLogisticsOnlineNetworkDistributionSystem/src/Plonds.Api/Program.cs

@@ -0,0 +1,86 @@
+using Microsoft.Extensions.Options;
+using Plonds.Api.Configuration;
+using Plonds.Api.Services;
+using Plonds.Shared;
+
+var builder = WebApplication.CreateBuilder(args);
+
+builder.Services.Configure<PlondsApiOptions>(builder.Configuration.GetSection("Plonds"));
+builder.Services.AddSingleton(sp =>
+{
+    var options = sp.GetRequiredService<IOptions<PlondsApiOptions>>().Value;
+    return options;
+});
+builder.Services.AddSingleton<IPlondsManifestStore>(sp =>
+{
+    var options = sp.GetRequiredService<PlondsApiOptions>();
+    return new FileSystemPlondsManifestStore(options);
+});
+
+var app = builder.Build();
+
+var apiBasePath = app.Configuration["Plonds:ApiBasePath"];
+if (string.IsNullOrWhiteSpace(apiBasePath))
+{
+    apiBasePath = PlondsConstants.DefaultApiBasePath;
+}
+
+if (!apiBasePath.StartsWith('/'))
+{
+    apiBasePath = "/" + apiBasePath;
+}
+
+app.MapGet("/healthz", () => Results.Ok(new { status = "ok", protocol = PlondsConstants.ProtocolName, version = PlondsConstants.ProtocolVersion }));
+
+app.MapGet($"{apiBasePath}/metadata", async (IPlondsManifestStore store, CancellationToken cancellationToken) =>
+{
+    var catalog = await store.GetCatalogAsync(cancellationToken);
+    return Results.Ok(catalog);
+});
+
+app.MapGet($"{apiBasePath}/channels/{{channel}}/{{platform}}/latest", async (
+    string channel,
+    string platform,
+    string? currentVersion,
+    IPlondsManifestStore store,
+    CancellationToken cancellationToken) =>
+{
+    var latest = await store.GetLatestAsync(channel, platform, cancellationToken);
+    if (latest is null)
+    {
+        return Results.NotFound(new
+        {
+            error = "latest_pointer_not_found",
+            channel,
+            platform
+        });
+    }
+
+    if (!string.IsNullOrWhiteSpace(currentVersion) &&
+        Version.TryParse(currentVersion, out var current) &&
+        Version.TryParse(latest.Version, out var target) &&
+        target <= current)
+    {
+        return Results.NoContent();
+    }
+
+    return Results.Ok(latest);
+});
+
+app.MapGet($"{apiBasePath}/distributions/{{distributionId}}", async (string distributionId, IPlondsManifestStore store, CancellationToken cancellationToken) =>
+{
+    var distribution = await store.GetDistributionAsync(distributionId, cancellationToken);
+    if (distribution is null)
+    {
+        return Results.NotFound(new
+        {
+            error = "distribution_not_found",
+            distributionId
+        });
+    }
+
+    return Results.Ok(distribution);
+});
+
+app.Run();
+