Emergence/Emergence.api/Controllers/TenantController.cs

using Emergence.api.Models;
using Emergence.models;
using Emergence.services.Interface;
using Microsoft.AspNetCore.Http.HttpResults;
using Microsoft.AspNetCore.Mvc;
using System.Text.Json.Serialization;

namespace Emergence.api.Controllers;

[ApiController]
[Route("[controller]")]
public class TenantController : ControllerBase
{
    private readonly ITenantService _tenantService;
    public TenantController(ITenantService tenantService)
    {
        _tenantService = tenantService;
    }

    [HttpGet(Name = "GetTenants")]
    public async Task<Results<Ok<IEnumerable<TenantModel>>, NotFound>> GetTenants()
    {
        var tenants = await _tenantService.GetAllAsync();
        if (tenants is null)
        {
            return TypedResults.NotFound();
        }
        return TypedResults.Ok(tenants);
    }

    [HttpGet("{id}", Name = "GetTenantById")]
    public async Task<Results<Ok<TenantModel>, NotFound, BadRequest>> GetTenantById(Guid id)
    {
        var tenant = await _tenantService.GetByIdAsync(id);
        if (tenant is null)
        {
            return TypedResults.NotFound();
        }
        return TypedResults.Ok(tenant);
    }

    [HttpPost(Name = "CreateTenant")]
    public async Task<Results<Created<TenantModel>, Conflict<ErrorDetailResults>, BadRequest<ValidationProblemResult>, UnprocessableEntity<ErrorDetailResults>>> Create(TenantModel tenant)
    {
        if (tenant == null || !ModelState.IsValid)
            return TypedResults.BadRequest<ValidationProblemResult>(new ValidationProblemResult(ModelState));

        if (tenant.Id.HasValue && tenant.Id.Value != Guid.Empty && _tenantService.GetByIdAsync(tenant.Id.Value).Result != null)
            return TypedResults.Conflict(new ErrorDetailResults($"Tenant already exists", $"Tenant with the id: {tenant.Id} already exists"));

        var newTenant = await _tenantService.CreateAsync(tenant);
        if (newTenant is null)
        {
            return TypedResults.UnprocessableEntity(new ErrorDetailResults($"Tenant failed to create", $"The new tenant failed to create. Please try again."));
        }
        return TypedResults.Created($"/tenant/{newTenant.Id}", newTenant);
    }
}