using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

/// <summary>
/// User directory for batch assignment and operational lookups.
/// </summary>
[ApiController]
[Route("api/v1/users")]
[Produces("application/json")]
[Authorize]
public class UsersController : ControllerBase
{
    private readonly IUserDirectoryService _users;

    public UsersController(IUserDirectoryService users) => _users = users;

    /// <summary>
    /// Lists active users, optionally filtered by role.
    /// </summary>
    [HttpGet]
    [Authorize(Roles = "INTAKE_CLERK,ADMINISTRATOR")]
    [ProducesResponseType(typeof(ApiResponse<IReadOnlyList<UserSummaryResponse>>), StatusCodes.Status200OK)]
    public async Task<IActionResult> List([FromQuery] string? role)
    {
        UserRole? parsedRole = null;
        if (!string.IsNullOrWhiteSpace(role))
            parsedRole = UserRoleExtensions.FromDbString(role);

        var results = await _users.ListByRoleAsync(parsedRole);
        return Ok(ApiResponse<IReadOnlyList<UserSummaryResponse>>.Ok(results));
    }
}