using System.Text;
using Microsoft.Extensions.Logging.Abstractions;
using Piwigo.Client.Contract;

namespace Piwigo.Client.Tests;

[TestFixture]
public class ImageApiTests : ApiTestsBase
{
    private IImageApi _imageApi = null!;
    private const string ApiToken = "37ff55f201cf54eadf11f734a74f1d0e";

    protected override void OnSetUp()
    {
        base.OnSetUp();
        _imageApi = new ImageApi(Context, new NullLogger<ImageApi>());
    }

    [Test]
    public async Task SetInfoAsync_should_pass_correct_mapped_values_to_piwigo()
    {
        SetOkResult();

        var albums = new List<(int AlbumId, int? Rank)>
        {
            new ValueTuple<int, int?>(3, 10),
            new ValueTuple<int, int?>(5, null),
            new ValueTuple<int, int?>(7, 11)
        };
        var imageInfo = new ImageInfo
        {
            Author = "unit test",
            Comment = "perfect image",
            Level = 42,
            Name = "Image001.jpg",
            CreatedAt = new DateTime(2022, 10, 22, 21, 50, 42),
            FileName = "RAW-Image001.jpg",
            Albums = albums,
            TagIds = new List<int> { 2, 4, 8 }
        };

        await _imageApi.SetInfoAsync(4, imageInfo);

        CorrectMethodShouldGetCalled("pwg.images.setInfo");

        CorrectParamShouldGetSent("image_id", "4");
        CorrectParamShouldGetSent("file", imageInfo.FileName);
        CorrectParamShouldGetSent("name", imageInfo.Name);
        CorrectParamShouldGetSent("author", imageInfo.Author);
        CorrectParamShouldGetSent("date_creation", "2022-10-22 21:50:42");
        CorrectParamShouldGetSent("comment", imageInfo.Comment);
        CorrectParamShouldGetSent("level", imageInfo.Level.ToString()!);
        CorrectParamShouldGetSent("categories", "3,10;5;7,11");
        CorrectParamShouldGetSent("tag_ids", "2,4,8");
        CorrectParamShouldGetSent("single_value_mode", "fill_if_empty");
        CorrectParamShouldGetSent("multiple_value_mode", "append");
    }

    [Test]
    public async Task RateAsync_should_pass_correct_values_to_server_and_return_correctly_mapped_result()
    {
        SetJsonResult(@"{""stat"":""ok"",""result"":{""score"":5,""average"":4.5,""count"":""2""}}");

        var rating = await _imageApi.RateAsync(4, 5);

        rating.Score.Should().Be(5);
        rating.Average.Should().Be(4.5f);
        rating.Count.Should().Be(2);

        CorrectMethodShouldGetCalled("pwg.images.rate");
        CorrectParamShouldGetSent("image_id", "4");
        CorrectParamShouldGetSent("rate", "5");
    }

    [Test]
    public async Task ExistsByMd5SumsAsync_should_pass_correct_values_to_server_and_return_correctly_mapped_result()
    {
        SetJsonResult(@"{""stat"":""ok"",""result"":{""2c6d9eab0c567d5f96c53825ae53f3d4"":""4"",""ee45c441b8ea4bcb3ab9b7a51370b242"":null}}");

        var existsResult = await _imageApi.ExistsByMd5SumsAsync(new[] { "2c6d9eab0c567d5f96c53825ae53f3d4", "ee45c441b8ea4bcb3ab9b7a51370b242" });

        existsResult.Should().HaveCount(2);
        existsResult["2c6d9eab0c567d5f96c53825ae53f3d4"].Should().Be(4);
        existsResult["ee45c441b8ea4bcb3ab9b7a51370b242"].Should().BeNull();

        CorrectMethodShouldGetCalled("pwg.images.exist");
        CorrectParamShouldGetSent("md5sum_list", "2c6d9eab0c567d5f96c53825ae53f3d4,ee45c441b8ea4bcb3ab9b7a51370b242");
    }

    [Test]
    public async Task DeleteOrphansAsync_should_pass_request_toPiwigo_and_return_performed_results()
    {
        SetJsonResult(@"{""stat"":""ok"",""result"":{""nb_deleted"":10,""nb_orphans"":154}}");

        var (deleted, orphans) = await _imageApi.DeleteOrphansAsync(ApiToken, 10);

        deleted.Should().Be(10);
        orphans.Should().Be(154);

        CorrectMethodShouldGetCalled("pwg.images.deleteOrphans");
        CorrectParamShouldGetSent("block_size", "10");
        CorrectParamShouldGetSent("pwg_token", ApiToken);
    }

    [Test]
    public async Task DeleteAsync_should_pass_request_toPiwigo_and_return_success()
    {
        SetJsonResult(@"{""stat"":""ok"",""result"":1}");

        var result = await _imageApi.DeleteAsync(1, ApiToken);

        result.Should().Be(true);

        CorrectMethodShouldGetCalled("pwg.images.delete");
        CorrectParamShouldGetSent("image_id", "1");
        CorrectParamShouldGetSent("pwg_token", ApiToken);
    }

    [Test]
    public async Task CheckImageAsync_should_pass_data_to_piwigo_and_return_status()
    {
        SetJsonResult(@"{""stat"":""ok"",""result"":{""file"":""differs""}}");

        const string md5Sum = "ee45c441b8ea4bcb3ab9b7a51370b242";
        var result = await _imageApi.CheckImageAsync(1, md5Sum);

        result.Should().Be(ImageCheckStatus.Differs);

        CorrectMethodShouldGetCalled("pwg.images.checkFiles");
        CorrectParamShouldGetSent("image_id", "1");
        CorrectParamShouldGetSent("file_sum", md5Sum);
    }

    [Test]
    public async Task AddComment_should_pass_data_to_piwigo_and_return_new_comment()
    {
        SetJsonResult(@"{""stat"":""ok"",""result"":{""comment"":{""id"":2,""validation"":true}}}");

        var commentId = await _imageApi.AddCommentAsync(4, "admin", "test comment", "testKey");

        CorrectMethodShouldGetCalled("pwg.images.addComment");
        CorrectParamShouldGetSent("image_id", "4");
        CorrectParamShouldGetSent("author", "admin");
        CorrectParamShouldGetSent("content", "test comment");
        CorrectParamShouldGetSent("key", "testKey");

        commentId.Should().Be(2);
    }

    [Test]
    public async Task GetInfo_should_pass_request_and_return_data()
    {
        await SetJsonResultFromFileAsync("ImageApi.getInfo.json");

        var response = await _imageApi.GetInfoAsync(3, 2, 100);

        CorrectMethodShouldGetCalled("pwg.images.getInfo");
        CorrectParamShouldGetSent("image_id", "3");
        CorrectParamShouldGetSent("comments_page", "2");
        CorrectParamShouldGetSent("comments_per_page", "100");

        await Verify(response);
    }

    [Test]
    public async Task Update_should_pass_data_to_piwigo()
    {
        SetJsonResult(@"{stat: ""ok"",
        result: {
            image_id: 1042,
            url: ""https://localhost/image.jpg""
        }}");

        var imageUpload = GetImageUpload();

        var uploaded = await _imageApi.UpdateAsync(1234, imageUpload);

        uploaded.ImageId.Should().Be(1042);
        uploaded.Url.Should().Be("https://localhost/image.jpg");

        CorrectMethodShouldGetCalled("pwg.images.add");

        CorrectParamShouldGetSent("original_filename", imageUpload.FileName!);
        CorrectParamShouldGetSent("name", imageUpload.Name!);
        CorrectParamShouldGetSent("author", imageUpload.Author!);
        CorrectParamShouldGetSent("date_creation", "2022-10-22 21:50:42");
        CorrectParamShouldGetSent("comment", imageUpload.Comment!);
        CorrectParamShouldGetSent("level", imageUpload.Level.ToString()!);
        CorrectParamShouldGetSent("categories", "3,10;5;7,11");
        CorrectParamShouldGetSent("tag_ids", "2,4,8");
        CorrectParamShouldGetSent("image_id", "1234");
    }

    [Test]
    public async Task Add_should_pass_data_to_piwigo()
    {
        SetJsonResult(@"{stat: ""ok"",
        result: {
            image_id: 1042,
            url: ""https://localhost/image.jpg""
        }}");

        var imageUpload = GetImageUpload();

        var uploaded = await _imageApi.AddAsync(imageUpload);

        uploaded.ImageId.Should().Be(1042);
        uploaded.Url.Should().Be("https://localhost/image.jpg");

        CorrectMethodShouldGetCalled("pwg.images.add");

        // must not be sent or it will be used as an update.
        // Piwigo uses the same request for add or update depending on this parameter
        ParamShouldNotGetSent("image_id");

        CorrectParamShouldGetSent("original_filename", imageUpload.FileName!);
        CorrectParamShouldGetSent("name", imageUpload.Name!);
        CorrectParamShouldGetSent("author", imageUpload.Author!);
        CorrectParamShouldGetSent("date_creation", "2022-10-22 21:50:42");
        CorrectParamShouldGetSent("comment", imageUpload.Comment!);
        CorrectParamShouldGetSent("level", imageUpload.Level.ToString()!);
        CorrectParamShouldGetSent("categories", "3,10;5;7,11");
        CorrectParamShouldGetSent("tag_ids", "2,4,8");
    }

    [Test]
    public async Task ReadyForUpload_should_return_correct_value()
    {
        SetJsonResult(@"{stat: ""ok"",
        result: {
            message: null,
            ready_for_upload: true
        }}");

        var isReady = await _imageApi.ReadyForUploadAsync();

        CorrectMethodShouldGetCalled("pwg.images.checkUpload");

        isReady.Should().BeTrue();
    }

    [Test]
    public async Task AddChunk_should_post_base64_encoded_data()
    {
        SetOkResult();

        var bytes = Encoding.UTF8.GetBytes("PiwigoTestString");
        var expectedBase64 = Convert.ToBase64String(bytes);

        await _imageApi.AddChunkAsync(bytes, "origSum", 0);

        CorrectMethodShouldGetCalled("pwg.images.addChunk");

        CorrectParamShouldGetSent("data", expectedBase64);
        CorrectParamShouldGetSent("original_sum", "origSum");
        CorrectParamShouldGetSent("type", "file");
        CorrectParamShouldGetSent("position", "0");
    }

    [Test]
    public async Task GetImages_should_return_expected_images()
    {
        await SetJsonResultFromFileAsync("ImageApi.getImages.json");

        var result = await _imageApi.GetImagesAsync(7, true, new ImagePagingInfo(0, 100, 0), ImageFilter.Empty);

        CorrectMethodShouldGetCalled("pwg.categories.getImages");
        CorrectParamShouldGetSent("cat_id", "7");
        CorrectParamShouldGetSent("recursive", "true");
        CorrectParamShouldGetSent("per_page", "100");
        CorrectParamShouldGetSent("page", "0");

        await Verify(result);
    }

    private static ImageUpload GetImageUpload()
    {
        var albums = new List<(int AlbumId, int? Rank)>
        {
            new ValueTuple<int, int?>(3, 10),
            new ValueTuple<int, int?>(5, null),
            new ValueTuple<int, int?>(7, 11)
        };

        var imageUpload = new ImageUpload("md5Sum")
        {
            Author = "unit test",
            Comment = "perfect image",
            Level = 42,
            Name = "Image001.jpg",
            CreatedAt = new DateTime(2022, 10, 22, 21, 50, 42),
            FileName = "RAW-Image001.jpg",
            Albums = albums,
            TagIds = new List<int> { 2, 4, 8 }
        };
        return imageUpload;
    }
}