using ManagerService.Data;
using ManagerService.Helpers;
using Xunit;

namespace ManagerService.Tests.Helpers
{
    /// <summary>
    /// Le calculateur est appelé par la création, le backfill et MigrationController.
    /// Ces tests fixent la distinction qu'ils perdaient chacun de leur côté : un type
    /// URL n'a pas de blob, donc ni chemin de stockage ni poids au quota.
    /// </summary>
    public class ResourceStorageTests
    {
        [Theory]
        [InlineData(ResourceType.Image)]
        [InlineData(ResourceType.Video)]
        [InlineData(ResourceType.Audio)]
        [InlineData(ResourceType.PDF)]
        [InlineData(ResourceType.JSON)]
        [InlineData(ResourceType.Word)]
        [InlineData(ResourceType.PowerPoint)]
        [InlineData(ResourceType.Text)]
        public void Apply_BlobType_WritesPathAndSize(ResourceType type)
        {
            var resource = new Resource { Id = "res-1", InstanceId = "inst-1", Type = type };

            ResourceStorage.Apply(resource, 4096);

            Assert.Equal("pictures/inst-1/res-1", resource.StoragePath);
            Assert.Equal(4096, resource.SizeBytes);
        }

        [Theory]
        [InlineData(ResourceType.ImageUrl)]
        [InlineData(ResourceType.VideoUrl)]
        [InlineData(ResourceType.JSONUrl)]
        public void Apply_UrlType_WritesNothing(ResourceType type)
        {
            var resource = new Resource { Id = "res-1", InstanceId = "inst-1", Type = type };

            ResourceStorage.Apply(resource, 4096);

            Assert.Null(resource.StoragePath);
            // Reste à 0 : un média hébergé ailleurs ne doit pas peser sur le quota.
            Assert.Equal(0, resource.SizeBytes);
        }

        [Fact]
        public void PathFor_IsDeterministic_SoBackfillCanRebuildIt()
        {
            Assert.Equal(
                ResourceStorage.PathFor(ResourceType.Image, "inst-1", "res-1"),
                ResourceStorage.PathFor(ResourceType.Image, "inst-1", "res-1"));
        }

        [Fact]
        public void PathFor_UrlType_IsNull()
        {
            Assert.Null(ResourceStorage.PathFor(ResourceType.ImageUrl, "inst-1", "res-1"));
        }
    }
}