using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using LingAdmin.API.Data;
using LingAdmin.API.Models;
using LingAdmin.API.DTOs;
using Dapr.Client;

namespace LingAdmin.API.Controllers;

[ApiController]
[Route("api/[controller]")]
public class AuditController : ControllerBase
{
    private readonly AppDbContext _context;
    private readonly DaprClient _daprClient;
    private readonly ILogger<AuditController> _logger;

    public AuditController(AppDbContext context, DaprClient daprClient, ILogger<AuditController> logger)
    {
        _context = context;
        _daprClient = daprClient;
        _logger = logger;
    }

    [HttpGet]
    public async Task<ActionResult<ApiResponse<List<AuditLog>>>> GetAuditLogs()
    {
        try
        {
            var logs = await _context.AuditLogs
                .OrderByDescending(a => a.Timestamp)
                .ToListAsync();
            return Ok(ApiResponse<List<AuditLog>>.Success(logs));
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Error retrieving audit logs");
            return StatusCode(500, ApiResponse<List<AuditLog>>.Error("Internal server error", 500));
        }
    }

    [HttpGet("{id}")]
    public async Task<ActionResult<ApiResponse<AuditLog>>> GetAuditLog(int id)
    {
        try
        {
            var log = await _context.AuditLogs.FindAsync(id);
            if (log == null)
            {
                return NotFound(ApiResponse<AuditLog>.Error("Audit log not found", 404));
            }
            return Ok(ApiResponse<AuditLog>.Success(log));
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Error retrieving audit log {Id}", id);
            return StatusCode(500, ApiResponse<AuditLog>.Error("Internal server error", 500));
        }
    }

    [HttpPost]
    public async Task<ActionResult<ApiResponse<AuditLog>>> CreateAuditLog(AuditLog log)
    {
        try
        {
            if (log.Timestamp == default)
            {
                log.Timestamp = DateTime.UtcNow;
            }

            _context.AuditLogs.Add(log);
            await _context.SaveChangesAsync();

            return CreatedAtAction(nameof(GetAuditLog), new { id = log.Id }, ApiResponse<AuditLog>.Success(log));
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Error creating audit log");
            return StatusCode(500, ApiResponse<AuditLog>.Error("Internal server error", 500));
        }
    }
}