using Microsoft.AspNetCore.Mvc;
using Nexus.Api.Helpers;

namespace Nexus.Api.Controllers;

[ApiController]
[Route("api/v1/docs")]
public class DocsController : ControllerBase
{
    [HttpGet]
    public IResult GetAll()
    {
        var workspaceRoot = "/mnt/workspace-iris";
        var results = new List<object>();

        void ScanDir(string dir, string category)
        {
            if (!Directory.Exists(dir)) return;
            foreach (var file in Directory.GetFiles(dir, "*.*"))
            {
                var ext = Path.GetExtension(file).ToLowerInvariant();
                if (ext is not (".md" or ".json" or ".txt" or ".yaml" or ".yml" or ".html" or ".css"))
                    continue;
                var fi = new FileInfo(file);
                results.Add(new
                {
                    name = fi.Name,
                    path = file.Replace(workspaceRoot, "").TrimStart('/'),
                    category,
                    type = ext.Replace(".", ""),
                    size = fi.Length,
                    modifiedAt = fi.LastWriteTimeUtc
                });
            }
        }

        ScanDir("/mnt/workspace-iris/nexus-phases", "phases");
        ScanDir("/mnt/workspace-iris/skills", "skills");
        ScanDir("/mnt/workspace-iris", "workspace");
        ScanDir("/home/node/.openclaw/workspace/nexus", "nexus");
        ScanDir("/home/node/.openclaw/workspace/nexus/phases", "nexus-phases");

        return Results.Ok(results.OrderByDescending(x => ((DateTime)((dynamic)x).modifiedAt)).Take(100));
    }

    [HttpGet("{**path}")]
    public async Task<IResult> GetFile(string path)
    {
        if (string.IsNullOrWhiteSpace(path))
            return Results.BadRequest("Path required.");

        string? resolvedPath = null;
        foreach (var root in new[] { "/mnt/workspace-iris", "/home/node/.openclaw/workspace/nexus" })
        {
            if (PathSecurityHelper.TryResolveSafePath(root, path, out var candidate) && System.IO.File.Exists(candidate))
            {
                resolvedPath = candidate;
                break;
            }
        }

        if (resolvedPath is null)
            return Results.NotFound();

        var content = await System.IO.File.ReadAllTextAsync(resolvedPath);
        var fi = new FileInfo(resolvedPath);
        return Results.Ok(new { name = fi.Name, path = resolvedPath.Replace("/mnt/workspace-iris/", "").Replace("/home/node/.openclaw/workspace/nexus/", ""), content, size = fi.Length, modifiedAt = fi.LastWriteTimeUtc });
    }
}