// ==========================================================================
//  Squidex Headless CMS
// ==========================================================================
//  Copyright (c) Squidex UG (haftungsbeschraenkt)
//  All rights reserved. Licensed under the MIT license.
// ==========================================================================

using Squidex.ClientLibrary;
using TestSuite.Model;

#pragma warning disable SA1300 // Element should begin with upper-case letter
#pragma warning disable SA1507 // Code should not contain multiple blank lines in a row

namespace TestSuite.ApiTests;

public class ContentLanguageTests(ContentFixture fixture) : IClassFixture<ContentFixture>
{
    public ContentFixture _ { get; } = fixture;

    [Fact]
    public async Task Should_filter_language()
    {
        // STEP 1: Create content.
        var content = await _.Contents.CreateAsync(
            new TestEntityData
            {
                Localized = new Dictionary<string, string?>
                {
                    ["de"] = "Hallo",
                    ["en"] = "Hello",
                },
            },
            ContentCreateOptions.AsPublish,
            QueryContext.Default.WithLanguages("de"));

        Assert.False(content.Data.Localized.ContainsKey("en"));
        Assert.Equal("Hallo", content.Data.Localized["de"]);
    }

    [Theory]
    [InlineData("de", "Hallo")]
    [InlineData("en", "Hello")]
    [InlineData("custom", "Custom")]
    public async Task Should_flatten_language(string code, string expected)
    {
        // STEP 1: Create content.
        var content = await _.Contents.CreateAsync(
            new TestEntityData
            {
                Localized = new Dictionary<string, string?>
                {
                    ["de"] = "Hallo",
                    ["en"] = "Hello",
                    ["custom"] = "Custom",
                },
            },
            ContentCreateOptions.AsPublish);


        // STEP 2: Get content.
        var contents = _.Client.DynamicContents(_.Contents.SchemaName);

        var contentFlatten = await contents.GetAsync(content.Id, QueryContext.Default.Flatten().WithLanguages(code));

        Assert.Equal(expected, (string?)contentFlatten.Data["localized"]);
    }

    [Fact]
    public async Task Should_provide_etag_based_on_headers()
    {
        // STEP 1: Create content.
        var content = await _.Contents.CreateAsync(
            new TestEntityData
            {
                Localized = new Dictionary<string, string?>
                {
                    ["de"] = "Hallo",
                    ["en"] = "Hello",
                },
            },
            ContentCreateOptions.AsPublish);


        // STEP 2: Get content.
        var (etag1, _) = await GetEtagAsync(content.Id, []);

        var (etag2, _) = await GetEtagAsync(
            content.Id,
            new Dictionary<string, string>
            {
                ["X-Flatten"] = "1",
            });

        var (etag3, _) = await GetEtagAsync(
            content.Id,
            new Dictionary<string, string>
            {
                ["X-Languages"] = "en",
            });

        var (etag4, _) = await GetEtagAsync(
            content.Id,
            new Dictionary<string, string>
            {
                ["X-Languages"] = "en",
                ["X-Flatten"] = "1",
            });

        static void AssertValue(string? value, string? not = null)
        {
            Assert.NotNull(value);
            Assert.NotEmpty(value);
            Assert.NotEqual(not, value);
        }

        AssertValue(etag1);
        AssertValue(etag2, etag1);
        AssertValue(etag3, etag1);
        AssertValue(etag4, etag1);
    }

    private async Task<(string?, string)> GetEtagAsync(string id, Dictionary<string, string> headers)
    {
        var url = $"{_.Client.Options.Url}api/content/{_.AppName}/{_.SchemaName}/{id}";

        var httpClient = _.Client.CreateHttpClient();

        foreach (var (key, value) in headers)
        {
            httpClient.DefaultRequestHeaders.TryAddWithoutValidation(key, value);
        }

        var httpResponse = await httpClient.GetAsync(url);

        return (httpResponse.Headers.GetValues("ETag").FirstOrDefault(), httpResponse.Headers.Vary.ToString());
    }
}