flatrender/services/identity/FlatRender.IdentitySvc/Controllers/DiscountsController.cs

using FlatRender.IdentitySvc.Application.Services.Interfaces;
using FlatRender.IdentitySvc.Models.Requests;
using FlatRender.IdentitySvc.Models.Responses;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

namespace FlatRender.IdentitySvc.Controllers;

[ApiController]
[Route("v1/discounts")]
[Authorize]
public class DiscountsController(IDiscountService discountService) : ControllerBase
{
    [HttpPost("validate")]
    [AllowAnonymous]
    [ProducesResponseType(typeof(DiscountValidateResponse), 200)]
    public async Task<IActionResult> Validate([FromBody] ValidateDiscountRequest request)
    {
        var tenantId = GetTenantIdOrDefault();
        var result = await discountService.ValidateAsync(tenantId, request.Code, request.PlanId);
        return Ok(result);
    }

    [HttpGet]
    [ProducesResponseType(typeof(PagedResponse<DiscountResponse>), 200)]
    public async Task<IActionResult> List([FromQuery] int page = 1, [FromQuery] int pageSize = 20)
    {
        var result = await discountService.ListAsync(GetTenantId(), page, pageSize);
        return Ok(result);
    }

    [HttpPost]
    [ProducesResponseType(typeof(DiscountResponse), 201)]
    public async Task<IActionResult> Create([FromBody] CreateDiscountRequest request)
    {
        var result = await discountService.CreateAsync(GetTenantId(), request);
        return StatusCode(201, result);
    }

    private Guid GetTenantId() => Guid.Parse(User.FindFirst("tenant_id")?.Value
        ?? throw new UnauthorizedAccessException());

    private Guid GetTenantIdOrDefault()
    {
        var claim = User.FindFirst("tenant_id")?.Value;
        return claim != null ? Guid.Parse(claim) : Guid.Empty;
    }
}