using System;
using System.Security.Claims;
using System.Threading.Tasks;
using D3ROVoice.Api.Dtos;
using D3ROVoice.Api.Services;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

namespace D3ROVoice.Api.Controllers;

[Authorize]
[ApiController]
[Route("api/[controller]")]
public class LlmController : ControllerBase
{
    private readonly ILlmProxyService _llmService;

    public LlmController(ILlmProxyService llmService)
    {
        _llmService = llmService;
    }

    [HttpPost("generate")]
    public async Task<IActionResult> Generate([FromBody] LlmGenerateRequest request)
    {
        var userIdStr = User.FindFirstValue(ClaimTypes.NameIdentifier);
        var userEmail = User.FindFirstValue(ClaimTypes.Email) ?? "unknown@user";
        int userId = int.TryParse(userIdStr, out var id) ? id : 0;

        if (string.IsNullOrWhiteSpace(request.Prompt))
        {
            return BadRequest(new { message = "Prompt는 필수 항목입니다." });
        }

        var result = await _llmService.GenerateAsync(userId, userEmail, request);
        return Ok(result);
    }

    [HttpPost("chat")]
    public async Task<IActionResult> Chat([FromBody] LlmChatRequest request)
    {
        var userIdStr = User.FindFirstValue(ClaimTypes.NameIdentifier);
        var userEmail = User.FindFirstValue(ClaimTypes.Email) ?? "unknown@user";
        int userId = int.TryParse(userIdStr, out var id) ? id : 0;

        var result = await _llmService.ChatAsync(userId, userEmail, request);
        return Ok(result);
    }
}