using api.Services.Contracts.Rag;
using Api.Models.Rag;
using Api.Services.Rag;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.RateLimiting;

namespace Api.Controllers;

[ApiController]
[Route("api/rag")]
[EnableRateLimiting("rag")]
public sealed class RagController : ControllerBase
{
    private readonly ICvRagService _cvRagService;
    private readonly ILogger<RagController> _logger;

    public RagController(ICvRagService cvRagService, ILogger<RagController> logger)
    {
        _cvRagService = cvRagService;
        _logger = logger;
    }

    [HttpPost("cv")]
    [RequestSizeLimit(8 * 1024 * 1024)]
    public async Task<IActionResult> UploadCv([FromForm(Name = "cv")] IFormFile? cv, [FromForm] bool gdprConsent, CancellationToken ct)
    {
        try
        {
            if (cv is null) return BadRequest(new { error = "Missing CV PDF." });
            var result = await _cvRagService.IngestCvAsync(cv, gdprConsent, ct);
            return Ok(result);
        }
        catch (InvalidOperationException ex)
        {
            return BadRequest(new { error = ex.Message });
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "CV ingestion failed");
            return StatusCode(500, new { error = "CV ingestion failed." });
        }
    }

    [HttpPost("match-job")]
    public async Task<IActionResult> MatchJob([FromBody] JobMatchRequest request, CancellationToken ct)
    {
        try
        {
            var result = await _cvRagService.MatchJobAsync(request, ct);
            return Ok(result);
        }
        catch (InvalidOperationException ex)
        {
            return BadRequest(new { error = ex.Message });
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Job matching failed");
            return StatusCode(500, new { error = "Job matching failed." });
        }
    }
}