using System.ComponentModel.DataAnnotations;

namespace FutureMailAPI.DTOs
{
    public class OAuthAuthorizationRequestDto
    {
        [Required]
        public string ResponseType { get; set; } = "code"; // code for authorization code flow
        
        [Required]
        public string ClientId { get; set; } = string.Empty;
        
        [Required]
        public string RedirectUri { get; set; } = string.Empty;
        
        public string Scope { get; set; } = "read write"; // Default scopes
        
        public string State { get; set; } = string.Empty; // CSRF protection
    }
    
    public class OAuthTokenRequestDto
    {
        [Required]
        public string GrantType { get; set; } = string.Empty; // authorization_code, refresh_token, client_credentials, password
        
        public string Code { get; set; } = string.Empty; // For authorization_code grant
        
        public string RefreshToken { get; set; } = string.Empty; // For refresh_token grant
        
        public string Username { get; set; } = string.Empty; // For password grant
        
        public string Password { get; set; } = string.Empty; // For password grant
        
        [Required]
        public string ClientId { get; set; } = string.Empty;
        
        public string ClientSecret { get; set; } = string.Empty; // Optional for public clients
        
        public string RedirectUri { get; set; } = string.Empty; // Required for authorization_code grant
        
        public string Scope { get; set; } = string.Empty; // Optional, defaults to requested scopes
    }
    
    public class OAuthTokenResponseDto
    {
        public string AccessToken { get; set; } = string.Empty;
        public string TokenType { get; set; } = "Bearer";
        public int ExpiresIn { get; set; } // Seconds until expiration
        public string RefreshToken { get; set; } = string.Empty;
        public string Scope { get; set; } = string.Empty;
    }
    
    public class OAuthAuthorizationResponseDto
    {
        public string Code { get; set; } = string.Empty;
        public string State { get; set; } = string.Empty;
    }
    
    public class OAuthClientDto
    {
        public int Id { get; set; }
        public string ClientId { get; set; } = string.Empty;
        public string Name { get; set; } = string.Empty;
        public string[] RedirectUris { get; set; } = Array.Empty<string>();
        public string[] Scopes { get; set; } = Array.Empty<string>();
        public bool IsActive { get; set; }
        public DateTime CreatedAt { get; set; }
        public DateTime UpdatedAt { get; set; }
    }
    
    public class OAuthClientCreateDto
    {
        [Required]
        [StringLength(100)]
        public string Name { get; set; } = string.Empty;
        
        [Required]
        public string[] RedirectUris { get; set; } = Array.Empty<string>();
        
        [Required]
        public string[] Scopes { get; set; } = Array.Empty<string>();
    }
    
    public class OAuthClientSecretDto
    {
        public string ClientId { get; set; } = string.Empty;
        public string ClientSecret { get; set; } = string.Empty;
    }
    
    public class OAuthLoginDto
    {
        [Required]
        public string UsernameOrEmail { get; set; } = string.Empty;
        
        [Required]
        public string Password { get; set; } = string.Empty;
        
        [Required]
        public string ClientId { get; set; } = string.Empty;
        
        public string ClientSecret { get; set; } = string.Empty; // Optional for public clients
        
        public string Scope { get; set; } = "read write"; // Default scopes
    }
}