Files
git.stella-ops.org/src/Policy/StellaOps.Policy.Engine/Endpoints/PolicyCompilationEndpoints.cs
2025-10-28 15:10:40 +02:00

108 lines
3.7 KiB
C#

using Microsoft.AspNetCore.Http.HttpResults;
using Microsoft.AspNetCore.Mvc;
using StellaOps.Policy;
using StellaOps.Policy.Engine.Services;
using System.Collections.Immutable;
namespace StellaOps.Policy.Engine.Endpoints;
internal static class PolicyCompilationEndpoints
{
private const string CompileRoute = "/api/policy/policies/{policyId}/versions/{version}:compile";
public static IEndpointRouteBuilder MapPolicyCompilation(this IEndpointRouteBuilder endpoints)
{
endpoints.MapPost(CompileRoute, CompilePolicy)
.WithName("CompilePolicy")
.WithSummary("Compile and lint a policy DSL document.")
.WithDescription("Compiles a stella-dsl@1 policy document and returns deterministic digest and statistics.")
.Produces<PolicyCompileResponse>(StatusCodes.Status200OK)
.Produces<ProblemHttpResult>(StatusCodes.Status400BadRequest)
.RequireAuthorization(); // scopes enforced by policy middleware.
return endpoints;
}
private static IResult CompilePolicy(
[FromRoute] string policyId,
[FromRoute] int version,
[FromBody] PolicyCompileRequest request,
PolicyCompilationService compilationService)
{
if (request is null)
{
return Results.BadRequest(BuildProblem("ERR_POL_001", "Request body missing.", policyId, version));
}
var result = compilationService.Compile(request);
if (!result.Success)
{
return Results.BadRequest(BuildProblem("ERR_POL_001", "Policy compilation failed.", policyId, version, result.Diagnostics));
}
var response = new PolicyCompileResponse(
result.Digest!,
result.Statistics ?? new PolicyCompilationStatistics(0, ImmutableDictionary<string, int>.Empty),
ConvertDiagnostics(result.Diagnostics));
return Results.Ok(response);
}
private static PolicyProblemDetails BuildProblem(string code, string message, string policyId, int version, ImmutableArray<PolicyIssue>? diagnostics = null)
{
var problem = new PolicyProblemDetails
{
Code = code,
Title = "Policy compilation error",
Detail = message,
PolicyId = policyId,
PolicyVersion = version
};
if (diagnostics is { Length: > 0 } diag)
{
problem.Diagnostics = diag;
}
return problem;
}
private static ImmutableArray<PolicyDiagnosticDto> ConvertDiagnostics(ImmutableArray<PolicyIssue> issues)
{
if (issues.IsDefaultOrEmpty)
{
return ImmutableArray<PolicyDiagnosticDto>.Empty;
}
var builder = ImmutableArray.CreateBuilder<PolicyDiagnosticDto>(issues.Length);
foreach (var issue in issues)
{
if (issue.Severity != PolicyIssueSeverity.Warning)
{
continue;
}
builder.Add(new PolicyDiagnosticDto(issue.Code, issue.Message, issue.Path));
}
return builder.ToImmutable();
}
private sealed class PolicyProblemDetails : ProblemDetails
{
public string Code { get; set; } = "ERR_POL_001";
public string? PolicyId { get; set; }
public int PolicyVersion { get; set; }
public ImmutableArray<PolicyIssue> Diagnostics { get; set; } = ImmutableArray<PolicyIssue>.Empty;
}
}
internal sealed record PolicyCompileResponse(
string Digest,
PolicyCompilationStatistics Statistics,
ImmutableArray<PolicyDiagnosticDto> Warnings);
internal sealed record PolicyDiagnosticDto(string Code, string Message, string Path);