using System;
using System.Collections.Generic;
using System.Linq;
using Moq;
using NUnit.Framework;
using Umbraco.Cms.Core.Models;
using Umbraco.Cms.Core.Routing;
using Umbraco.Cms.Core.Services;
using Umbraco.Cms.Infrastructure.PublishedCache;
using Umbraco.Cms.Infrastructure.PublishedCache.DataSource;
using Umbraco.Cms.Tests.Common.Builders;
using Umbraco.Cms.Tests.Common.Builders.Extensions;
using Umbraco.Cms.Tests.UnitTests.TestHelpers;
using Umbraco.Extensions;

namespace Umbraco.Cms.Tests.UnitTests.Umbraco.Infrastructure.PublishedCache
{
    /// <summary>
    /// Unit tests for IPublishedContent and extensions
    /// </summary>
    [TestFixture]
    public class PublishedContentDataTableTests : PublishedSnapshotServiceTestBase
    {
        private readonly DataType[] _dataTypes = GetDefaultDataTypes();

        private static ContentType CreateContentType(string name, IDataType dataType, IReadOnlyDictionary<string, string> propertyAliasesAndNames)
        {
            var contentType = new ContentType(TestHelper.ShortStringHelper, -1)
            {
                Alias = name,
                Name = name,
                Key = Guid.NewGuid(),
                Id = name.GetHashCode()
            };
            foreach(var prop in propertyAliasesAndNames)
            {
                contentType.AddPropertyType(new PropertyType(TestHelper.ShortStringHelper, dataType, prop.Key)
                {
                    Name = prop.Value
                });
            }

            return contentType;
        }

        private IEnumerable<ContentNodeKit> CreateCache(
            bool createChildren,
            IDataType dataType,
            out ContentType[] contentTypes)
        {
            var result = new List<ContentNodeKit>();
            var valueCounter = 1;
            var parentId = 3;

            var properties = new Dictionary<string, string>
            {
                ["property1"] = "Property 1",
                ["property2"] = "Property 2",
            };

            ContentType parentContentType = CreateContentType("Parent", dataType, new Dictionary<string, string>(properties)
                {
                    ["property3"] = "Property 3"
                });
            ContentType childContentType = CreateContentType("Child", dataType, new Dictionary<string, string>(properties)
            {
                ["property4"] = "Property 4"
            });
            ContentType child2ContentType = CreateContentType("Child2", dataType, new Dictionary<string, string>(properties)
            {
                ["property4"] = "Property 4"
            });

            contentTypes = new[] { parentContentType, childContentType, child2ContentType };

            ContentData parentData = new ContentDataBuilder()
                .WithName("Page" + Guid.NewGuid())
                .WithProperties(new PropertyDataBuilder()                    
                    .WithPropertyData("property1", "value" + valueCounter)
                    .WithPropertyData("property2", "value" + (valueCounter + 1))
                    .WithPropertyData("property3", "value" + (valueCounter + 2))
                    .Build())
                .Build();

            ContentNodeKit parent = ContentNodeKitBuilder.CreateWithContent(
                parentContentType.Id,
                parentId, $"-1,{parentId}",
                draftData: parentData,
                publishedData: parentData);

            result.Add(parent);

            if (createChildren)
            {
                for (int i = 0; i < 3; i++)
                {
                    valueCounter += 3;
                    var childId = parentId + i + 1;

                    ContentData childData = new ContentDataBuilder()
                        .WithName("Page" + Guid.NewGuid())
                        .WithProperties(new PropertyDataBuilder()
                            .WithPropertyData("property1", "value" + valueCounter)
                            .WithPropertyData("property2", "value" + (valueCounter + 1))
                            .WithPropertyData("property4", "value" + (valueCounter + 2))
                            .Build())
                        .Build();
                    
                    ContentNodeKit child = ContentNodeKitBuilder.CreateWithContent(
                        i > 0 ? childContentType.Id : child2ContentType.Id,
                        childId, $"-1,{parentId},{childId}", i,
                        draftData: childData,
                        publishedData: childData);

                    result.Add(child);
                }
            }

            return result;
        }

        [Test]
        public void To_DataTable()
        {   
            var cache = CreateCache(true, _dataTypes[0], out ContentType[] contentTypes);
            InitializedCache(cache, contentTypes, dataTypes: _dataTypes);

            var snapshot = GetPublishedSnapshot();
            var root = snapshot.Content.GetAtRoot().First();

            var dt = root.ChildrenAsTable(
                VariationContextAccessor,
                ContentTypeService,
                MediaTypeService,
                Mock.Of<IMemberTypeService>(),
                Mock.Of<IPublishedUrlProvider>());

            Assert.AreEqual(11, dt.Columns.Count);
            Assert.AreEqual(3, dt.Rows.Count);
            Assert.AreEqual("value4", dt.Rows[0]["Property 1"]);
            Assert.AreEqual("value5", dt.Rows[0]["Property 2"]);
            Assert.AreEqual("value6", dt.Rows[0]["Property 4"]);
            Assert.AreEqual("value7", dt.Rows[1]["Property 1"]);
            Assert.AreEqual("value8", dt.Rows[1]["Property 2"]);
            Assert.AreEqual("value9", dt.Rows[1]["Property 4"]);
            Assert.AreEqual("value10", dt.Rows[2]["Property 1"]);
            Assert.AreEqual("value11", dt.Rows[2]["Property 2"]);
            Assert.AreEqual("value12", dt.Rows[2]["Property 4"]);
        }

        [Test]
        public void To_DataTable_With_Filter()
        {
            var cache = CreateCache(true, _dataTypes[0], out ContentType[] contentTypes);
            InitializedCache(cache, contentTypes, dataTypes: _dataTypes);

            var snapshot = GetPublishedSnapshot();
            var root = snapshot.Content.GetAtRoot().First();

            var dt = root.ChildrenAsTable(
                VariationContextAccessor,
                ContentTypeService,
                MediaTypeService,
                Mock.Of<IMemberTypeService>(),
                Mock.Of<IPublishedUrlProvider>(),
                "Child");

            Assert.AreEqual(11, dt.Columns.Count);
            Assert.AreEqual(2, dt.Rows.Count);
            Assert.AreEqual("value7", dt.Rows[0]["Property 1"]);
            Assert.AreEqual("value8", dt.Rows[0]["Property 2"]);
            Assert.AreEqual("value9", dt.Rows[0]["Property 4"]);
            Assert.AreEqual("value10", dt.Rows[1]["Property 1"]);
            Assert.AreEqual("value11", dt.Rows[1]["Property 2"]);
            Assert.AreEqual("value12", dt.Rows[1]["Property 4"]);
        }

        [Test]
        public void To_DataTable_No_Rows()
        {
            var cache = CreateCache(false, _dataTypes[0], out ContentType[] contentTypes);
            InitializedCache(cache, contentTypes, dataTypes: _dataTypes);

            var snapshot = GetPublishedSnapshot();
            var root = snapshot.Content.GetAtRoot().First();

            var dt = root.ChildrenAsTable(
                VariationContextAccessor,
                ContentTypeService,
                MediaTypeService,
                Mock.Of<IMemberTypeService>(),
                Mock.Of<IPublishedUrlProvider>());

            //will return an empty data table
            Assert.AreEqual(0, dt.Columns.Count);
            Assert.AreEqual(0, dt.Rows.Count);
        }

    }
}