using Microsoft.AspNetCore.Mvc;
using HardwarePerformance.Infrastructure.Data;

namespace HardwarePerformance.API.Controllers;

[ApiController]
[Route("api/[controller]")]
public class TestController : ControllerBase
{
    private readonly SimpleAppDbContext _context;
    private readonly ILogger<TestController> _logger;

    public TestController(SimpleAppDbContext context, ILogger<TestController> logger)
    {
        _context = context;
        _logger = logger;
    }

    [HttpGet("database-status")]
    public async Task<IActionResult> GetDatabaseStatus()
    {
        try
        {
            var isConnected = await _context.TestConnectionAsync();
            
            return Ok(new
            {
                IsConnected = isConnected,
                Message = isConnected ? "数据库连接成功" : "数据库连接失败",
                Timestamp = DateTime.Now
            });
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "检查数据库连接时发生错误");
            return StatusCode(500, new
            {
                IsConnected = false,
                Message = $"检查数据库连接时发生错误: {ex.Message}",
                Timestamp = DateTime.Now
            });
        }
    }

    [HttpPost("initialize-database")]
    public async Task<IActionResult> InitializeDatabase()
    {
        try
        {
            await _context.InitializeDatabaseAsync();
            await _context.SeedInitialDataAsync();
            
            return Ok(new
            {
                Message = "数据库初始化成功，种子数据已添加",
                Timestamp = DateTime.Now
            });
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "初始化数据库时发生错误");
            return StatusCode(500, new
            {
                Message = $"初始化数据库时发生错误: {ex.Message}",
                Timestamp = DateTime.Now
            });
        }
    }

    [HttpGet("categories")]
    public async Task<IActionResult> GetCategories()
    {
        try
        {
            var categories = new List<object>();
            
            using var connection = new MySql.Data.MySqlClient.MySqlConnection(
                "Server=localhost;Database=HardwarePerformance;User=root;Password=123456;");
            await connection.OpenAsync();
            
            using var cmd = new MySql.Data.MySqlClient.MySqlCommand("SELECT * FROM Categories", connection);
            using var reader = await cmd.ExecuteReaderAsync();
            
            while (await reader.ReadAsync())
            {
                categories.Add(new
                {
                    Id = reader.GetInt32("Id"),
                    Name = reader.GetString("Name"),
                    Description = reader.IsDBNull("Description") ? null : reader.GetString("Description"),
                    CreatedAt = reader.GetDateTime("CreatedAt")
                });
            }
            
            return Ok(categories);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "获取类别列表时发生错误");
            return StatusCode(500, new
            {
                Message = $"获取类别列表时发生错误: {ex.Message}",
                Timestamp = DateTime.Now
            });
        }
    }

    [HttpGet("products")]
    public async Task<IActionResult> GetProducts()
    {
        try
        {
            var products = new List<object>();
            
            using var connection = new MySql.Data.MySqlClient.MySqlConnection(
                "Server=localhost;Database=HardwarePerformance;User=root;Password=123456;");
            await connection.OpenAsync();
            
            using var cmd = new MySql.Data.MySqlClient.MySqlCommand(
                @"SELECT p.*, c.Name as CategoryName 
                  FROM Products p 
                  LEFT JOIN Categories c ON p.CategoryId = c.Id", connection);
            using var reader = await cmd.ExecuteReaderAsync();
            
            while (await reader.ReadAsync())
            {
                products.Add(new
                {
                    Id = reader.GetInt32("Id"),
                    Name = reader.GetString("Name"),
                    Model = reader.IsDBNull("Model") ? null : reader.GetString("Model"),
                    Manufacturer = reader.IsDBNull("Manufacturer") ? null : reader.GetString("Manufacturer"),
                    ImageUrl = reader.IsDBNull("ImageUrl") ? null : reader.GetString("ImageUrl"),
                    ReleaseDate = reader.IsDBNull("ReleaseDate") ? (DateTime?)null : reader.GetDateTime("ReleaseDate"),
                    CategoryId = reader.IsDBNull("CategoryId") ? (int?)null : reader.GetInt32("CategoryId"),
                    CategoryName = reader.IsDBNull("CategoryName") ? null : reader.GetString("CategoryName"),
                    CurrentRank = reader.IsDBNull("CurrentRank") ? (int?)null : reader.GetInt32("CurrentRank"),
                    CreatedAt = reader.GetDateTime("CreatedAt")
                });
            }
            
            return Ok(products);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "获取产品列表时发生错误");
            return StatusCode(500, new
            {
                Message = $"获取产品列表时发生错误: {ex.Message}",
                Timestamp = DateTime.Now
            });
        }
    }
}