using Microsoft.AspNetCore.Mvc;
using WebClientBase.Shared;
using WebClientBase.Shared.DTOs;

namespace WebClientBase.Server.Controllers;

/// <summary>
/// EN: Authentication API controller.
/// VI: Auth API controller.
/// </summary>
[ApiController]
[Route("api/[controller]")]
public class AuthController : ControllerBase
{
    /// <summary>
    /// EN: Register a new user.
    /// VI: Đăng ký user mới.
    /// </summary>
    /// <param name="request">Registration data with validation</param>
    [HttpPost("register")]
    [ProducesResponseType(typeof(ApiResponse<UserProfileDto>), StatusCodes.Status201Created)]
    [ProducesResponseType(typeof(ValidationProblemDetails), StatusCodes.Status400BadRequest)]
    public ActionResult<ApiResponse<UserProfileDto>> Register([FromBody] RegisterDto request)
    {
        // EN: [ApiController] validates before this code runs
        // VI: [ApiController] validate trước khi code này chạy

        // EN: Demo - create user profile
        // VI: Demo - tạo user profile
        var profile = new UserProfileDto
        {
            Id = Guid.NewGuid(),
            Email = request.Email,
            DisplayName = request.DisplayName,
            CreatedAt = DateTime.UtcNow
        };

        return CreatedAtAction(nameof(GetProfile), new { id = profile.Id }, ApiResponse<UserProfileDto>.Ok(profile));
    }

    /// <summary>
    /// EN: Login with email and password.
    /// VI: Đăng nhập với email và mật khẩu.
    /// </summary>
    [HttpPost("login")]
    [ProducesResponseType(typeof(ApiResponse<UserProfileDto>), StatusCodes.Status200OK)]
    [ProducesResponseType(typeof(ValidationProblemDetails), StatusCodes.Status400BadRequest)]
    [ProducesResponseType(typeof(ApiResponse), StatusCodes.Status401Unauthorized)]
    public ActionResult<ApiResponse<UserProfileDto>> Login([FromBody] LoginDto request)
    {
        // EN: Demo - always succeed with mock profile
        // VI: Demo - luôn thành công với profile giả
        var profile = new UserProfileDto
        {
            Id = Guid.NewGuid(),
            Email = request.Email,
            DisplayName = "Demo User",
            CreatedAt = DateTime.UtcNow.AddDays(-30)
        };

        return Ok(ApiResponse<UserProfileDto>.Ok(profile));
    }

    /// <summary>
    /// EN: Get user profile by ID.
    /// VI: Lấy user profile theo ID.
    /// </summary>
    [HttpGet("profile/{id:guid}")]
    [ProducesResponseType(typeof(ApiResponse<UserProfileDto>), StatusCodes.Status200OK)]
    [ProducesResponseType(typeof(ApiResponse), StatusCodes.Status404NotFound)]
    public ActionResult<ApiResponse<UserProfileDto>> GetProfile(Guid id)
    {
        // EN: Demo - return mock profile
        // VI: Demo - trả về profile giả
        var profile = new UserProfileDto
        {
            Id = id,
            Email = "demo@example.com",
            DisplayName = "Demo User",
            AvatarUrl = "https://example.com/avatar.jpg",
            CreatedAt = DateTime.UtcNow.AddDays(-30)
        };

        return Ok(ApiResponse<UserProfileDto>.Ok(profile));
    }
}