// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

using System;
using System.IO;
using System.Linq;
using Microsoft.DotNet.ProjectModel.FileSystemGlobbing.Abstractions;
using Microsoft.DotNet.ProjectModel.FileSystemGlobbing.Tests.TestUtility;
using Xunit;

namespace Microsoft.DotNet.ProjectModel.FileSystemGlobbing.Tests
{
    public class FunctionalTests : IDisposable
    {
        private readonly DisposableFileSystem _context;

        public FunctionalTests()
        {
            _context = CreateContext();
        }

        public void Dispose()
        {
            _context.Dispose();
        }

        [Theory]
        [InlineData("sub/source2.cs", "sub/source2.cs")]
        [InlineData("sub\\source2.cs", "sub\\source2.cs")]
        [InlineData("sub/source2.cs", "sub\\source2.cs")]
        public void DuplicatePatterns(string pattern1, string pattern2)
        {
            var matcher = new Matcher();
            matcher.AddInclude(pattern1);
            matcher.AddInclude(pattern2);

            ExecuteAndVerify(matcher, @"src/project",
                "src/project/sub/source2.cs");
        }

        [Theory]
        [InlineData("src/project", "source1.cs", new string[] { "source1.cs" })]
        [InlineData("src/project", "Source1.cs", new string[] { })]
        [InlineData("src/project", "compiler/preprocess/**/*.cs", new string[] { "compiler/preprocess/preprocess-source1.cs",
                                                                                 "compiler/preprocess/sub/preprocess-source2.cs",
                                                                                 "compiler/preprocess/sub/sub/preprocess-source3.cs" })]
        [InlineData("src/project", "compiler/Preprocess/**.cs", new string[] { })]
        public void IncludeCaseSensitive(string root, string includePattern, string[] expectedFiles)
        {
            var matcher = new Matcher(StringComparison.Ordinal);
            matcher.AddInclude(includePattern);

            ExecuteAndVerify(matcher, root, expectedFiles.Select(f => root + "/" + f).ToArray());
        }

        [Theory]
        [InlineData("src/project", "source1.cs", new string[] { "source1.cs" })]
        [InlineData("src/project", "Source1.cs", new string[] { "Source1.cs" })]
        [InlineData("src/project", "compiler/preprocess/**/*.cs", new string[] { "compiler/preprocess/preprocess-source1.cs",
                                                                                 "compiler/preprocess/sub/preprocess-source2.cs",
                                                                                 "compiler/preprocess/sub/sub/preprocess-source3.cs" })]
        [InlineData("src/project", "compiler/Preprocess/**.cs", new string[] { "compiler/Preprocess/preprocess-source1.cs",
                                                                                 "compiler/Preprocess/sub/preprocess-source2.cs",
                                                                                 "compiler/Preprocess/sub/sub/preprocess-source3.cs" })]
        public void IncludeCaseInsensitive(string root, string includePattern, string[] expectedFiles)
        {
            var matcher = new Matcher(StringComparison.OrdinalIgnoreCase);
            matcher.AddInclude(includePattern);

            ExecuteAndVerify(matcher, root, expectedFiles.Select(f => root + "/" + f).ToArray());
        }

        [Theory]
        [InlineData("src/project/compiler/preprocess/", "source.cs", new string[] { "preprocess-source1.cs",
                                                                                    "sub/preprocess-source2.cs",
                                                                                    "sub/sub/preprocess-source3.cs",
                                                                                    "sub/sub/preprocess-source3.txt" })]
        [InlineData("src/project/compiler/preprocess/", "preprocess-source1.cs", new string[] {
                                                                                    "sub/preprocess-source2.cs",
                                                                                    "sub/sub/preprocess-source3.cs",
                                                                                    "sub/sub/preprocess-source3.txt" })]
        [InlineData("src/project/compiler/preprocess/", "preprocesS-source1.cs", new string[] {
                                                                                    "preprocess-source1.cs",
                                                                                    "sub/preprocess-source2.cs",
                                                                                    "sub/sub/preprocess-source3.cs",
                                                                                    "sub/sub/preprocess-source3.txt" })]
        [InlineData("src/project/compiler/preprocess/", "**/Preprocess*", new string[] { "preprocess-source1.cs",
                                                                                     "sub/preprocess-source2.cs",
                                                                                     "sub/sub/preprocess-source3.cs",
                                                                                     "sub/sub/preprocess-source3.txt" })]
        [InlineData("src/project/compiler/preprocess/", "**/preprocess*", new string[] { })]
        [InlineData("src/project/compiler/preprocess/", "**/*source*.cs", new string[] { "sub/sub/preprocess-source3.txt" })]
        [InlineData("src/project/compiler/preprocess/", "**/*Source*.cs", new string[] {
                                                                                    "preprocess-source1.cs",
                                                                                    "sub/preprocess-source2.cs",
                                                                                    "sub/sub/preprocess-source3.cs",
                                                                                    "sub/sub/preprocess-source3.txt" })]
        [InlineData("src/project/compiler/preprocess/", "sub/sub/*", new string[] { "preprocess-source1.cs",
                                                                                    "sub/preprocess-source2.cs" })]
        [InlineData("src/project/compiler/preprocess/", "sub/Sub/*", new string[] { "preprocess-source1.cs",
                                                                                    "sub/preprocess-source2.cs",
                                                                                    "sub/sub/preprocess-source3.cs",
                                                                                    "sub/sub/preprocess-source3.txt" })]
        public void ExcludeCaseSensitive(string root, string excludePattern, string[] expectedFiles)
        {
            var matcher = new Matcher(StringComparison.Ordinal);
            matcher.AddInclude("**/*.*");
            matcher.AddExclude(excludePattern);

            ExecuteAndVerify(matcher, root, expectedFiles.Select(f => root + "/" + f).ToArray());
        }

        [Theory]
        [InlineData("src/project/compiler/preprocess/", "source.cs", new string[] { "preprocess-source1.cs",
                                                                                    "sub/preprocess-source2.cs",
                                                                                    "sub/sub/preprocess-source3.cs",
                                                                                    "sub/sub/preprocess-source3.txt" })]
        [InlineData("src/project/compiler/preprocess/", "preprocess-source1.cs", new string[] {
                                                                                    "sub/preprocess-source2.cs",
                                                                                    "sub/sub/preprocess-source3.cs",
                                                                                    "sub/sub/preprocess-source3.txt" })]
        [InlineData("src/project/compiler/preprocess/", "preprocesS-source1.cs", new string[] {
                                                                                    "sub/preprocess-source2.cs",
                                                                                    "sub/sub/preprocess-source3.cs",
                                                                                    "sub/sub/preprocess-source3.txt" })]
        [InlineData("src/project/compiler/preprocess/", "**/Preprocess*", new string[] { })]
        [InlineData("src/project/compiler/preprocess/", "**/preprocess*", new string[] { })]
        [InlineData("src/project/compiler/preprocess/", "**/*source*.cs", new string[] { "sub/sub/preprocess-source3.txt" })]
        [InlineData("src/project/compiler/preprocess/", "**/*Source*.cs", new string[] { "sub/sub/preprocess-source3.txt" })]
        [InlineData("src/project/compiler/preprocess/", "sub/sub/*", new string[] { "preprocess-source1.cs",
                                                                                    "sub/preprocess-source2.cs" })]
        [InlineData("src/project/compiler/preprocess/", "sub/Sub/*", new string[] { "preprocess-source1.cs",
                                                                                    "sub/preprocess-source2.cs" })]
        public void ExcludeCaseInsensitive(string root, string excludePattern, string[] expectedFiles)
        {
            var matcher = new Matcher(StringComparison.OrdinalIgnoreCase);
            matcher.AddInclude("**/*.*");
            matcher.AddExclude(excludePattern);

            ExecuteAndVerify(matcher, root, expectedFiles.Select(f => root + "/" + f).ToArray());
        }

        [Fact]
        public void RecursiveAndDoubleParentsWithRecursiveSearch()
        {
            var matcher = new Matcher();
            matcher.AddInclude("**/*.cs")
                   .AddInclude(@"../../lib/**/*.cs");

            ExecuteAndVerify(matcher, @"src/project",
                "src/project/source1.cs",
                "src/project/sub/source2.cs",
                "src/project/sub/source3.cs",
                "src/project/sub2/source4.cs",
                "src/project/sub2/source5.cs",
                "src/project/compiler/preprocess/preprocess-source1.cs",
                "src/project/compiler/preprocess/sub/preprocess-source2.cs",
                "src/project/compiler/preprocess/sub/sub/preprocess-source3.cs",
                "src/project/compiler/shared/shared1.cs",
                "src/project/compiler/shared/sub/shared2.cs",
                "src/project/compiler/shared/sub/sub/sharedsub.cs",
                "lib/source6.cs",
                "lib/sub3/source7.cs",
                "lib/sub4/source8.cs");
        }

        [Fact]
        public void RecursiveAndDoubleParentsSearch()
        {
            var matcher = new Matcher();
            matcher.AddInclude("**/*.cs")
                   .AddInclude(@"../../lib/*.cs");

            ExecuteAndVerify(matcher, @"src/project",
                "src/project/source1.cs",
                "src/project/sub/source2.cs",
                "src/project/sub/source3.cs",
                "src/project/sub2/source4.cs",
                "src/project/sub2/source5.cs",
                "src/project/compiler/preprocess/preprocess-source1.cs",
                "src/project/compiler/preprocess/sub/preprocess-source2.cs",
                "src/project/compiler/preprocess/sub/sub/preprocess-source3.cs",
                "src/project/compiler/shared/shared1.cs",
                "src/project/compiler/shared/sub/shared2.cs",
                "src/project/compiler/shared/sub/sub/sharedsub.cs",
                "lib/source6.cs");
        }

        [Fact]
        public void WildcardAndDoubleParentWithRecursiveSearch()
        {
            var matcher = new Matcher();
            matcher.AddInclude(@"..\..\lib\**\*.cs");
            matcher.AddInclude(@"*.cs");

            ExecuteAndVerify(matcher, @"src/project",
                "src/project/source1.cs",
                "lib/source6.cs",
                "lib/sub3/source7.cs",
                "lib/sub4/source8.cs");
        }

        [Fact]
        public void WildcardAndDoubleParentsSearch()
        {
            var matcher = new Matcher();
            matcher.AddInclude(@"..\..\lib\*.cs");
            matcher.AddInclude(@"*.cs");

            ExecuteAndVerify(matcher, @"src/project",
                "src/project/source1.cs",
                "lib/source6.cs");
        }

        [Fact]
        public void DoubleParentsWithRecursiveSearch()
        {
            var matcher = new Matcher();
            matcher.AddInclude(@"..\..\lib\**\*.cs");

            ExecuteAndVerify(matcher, @"src/project",
                "lib/source6.cs",
                "lib/sub3/source7.cs",
                "lib/sub4/source8.cs");
        }

        [Fact]
        public void OneLevelParentAndRecursiveSearch()
        {
            var matcher = new Matcher();
            matcher.AddInclude(@"../project2/**/*.cs");

            ExecuteAndVerify(matcher, @"src/project",
                "src/project2/source1.cs",
                "src/project2/sub/source2.cs",
                "src/project2/sub/source3.cs",
                "src/project2/sub2/source4.cs",
                "src/project2/sub2/source5.cs",
                "src/project2/compiler/preprocess/preprocess-source1.cs",
                "src/project2/compiler/preprocess/sub/preprocess-source2.cs",
                "src/project2/compiler/preprocess/sub/sub/preprocess-source3.cs",
                "src/project2/compiler/shared/shared1.cs",
                "src/project2/compiler/shared/sub/shared2.cs",
                "src/project2/compiler/shared/sub/sub/sharedsub.cs");
        }

        [Fact]
        public void RecursiveSuffixSearch()
        {
            var matcher = new Matcher();
            matcher.AddInclude(@"**.txt");

            ExecuteAndVerify(matcher, @"src/project",
                "src/project/compiler/preprocess/sub/sub/preprocess-source3.txt",
                "src/project/compiler/shared/shared1.txt",
                "src/project/compiler/shared/sub/shared2.txt",
                "src/project/content1.txt");
        }

        [Fact]
        public void FolderExclude()
        {
            var matcher = new Matcher();
            matcher.AddInclude(@"**/*.*");
            matcher.AddExclude(@"obj");
            matcher.AddExclude(@"bin");
            matcher.AddExclude(@".*");

            ExecuteAndVerify(matcher, @"src/project",
                "src/project/source1.cs",
                "src/project/sub/source2.cs",
                "src/project/sub/source3.cs",
                "src/project/sub2/source4.cs",
                "src/project/sub2/source5.cs",
                "src/project/compiler/preprocess/preprocess-source1.cs",
                "src/project/compiler/preprocess/sub/preprocess-source2.cs",
                "src/project/compiler/preprocess/sub/sub/preprocess-source3.cs",
                "src/project/compiler/preprocess/sub/sub/preprocess-source3.txt",
                "src/project/compiler/shared/shared1.cs",
                "src/project/compiler/shared/shared1.txt",
                "src/project/compiler/shared/sub/shared2.cs",
                "src/project/compiler/shared/sub/shared2.txt",
                "src/project/compiler/shared/sub/sub/sharedsub.cs",
                "src/project/compiler/resources/resource.res",
                "src/project/compiler/resources/sub/resource2.res",
                "src/project/compiler/resources/sub/sub/resource3.res",
                "src/project/content1.txt");
        }

        [Fact]
        public void FolderInclude()
        {
            var matcher = new Matcher();
            matcher.AddInclude(@"compiler/");
            ExecuteAndVerify(matcher, @"src/project",
                "src/project/compiler/preprocess/preprocess-source1.cs",
                "src/project/compiler/preprocess/sub/preprocess-source2.cs",
                "src/project/compiler/preprocess/sub/sub/preprocess-source3.cs",
                "src/project/compiler/preprocess/sub/sub/preprocess-source3.txt",
                "src/project/compiler/shared/shared1.cs",
                "src/project/compiler/shared/shared1.txt",
                "src/project/compiler/shared/sub/shared2.cs",
                "src/project/compiler/shared/sub/shared2.txt",
                "src/project/compiler/shared/sub/sub/sharedsub.cs",
                "src/project/compiler/resources/resource.res",
                "src/project/compiler/resources/sub/resource2.res",
                "src/project/compiler/resources/sub/sub/resource3.res");
        }

        [Theory]
        [InlineData("source1.cs", "src/project/source1.cs")]
        [InlineData("../project2/source1.cs", "src/project2/source1.cs")]
        public void SingleFile(string pattern, string expect)
        {
            var matcher = new Matcher();
            matcher.AddInclude(pattern);
            ExecuteAndVerify(matcher, "src/project", expect);
        }

        [Fact]
        public void SingleFileAndRecursive()
        {
            var matcher = new Matcher();
            matcher.AddInclude("**/*.cs");
            matcher.AddInclude("../project2/source1.cs");
            ExecuteAndVerify(matcher, "src/project",
                "src/project/source1.cs",
                "src/project/sub/source2.cs",
                "src/project/sub/source3.cs",
                "src/project/sub2/source4.cs",
                "src/project/sub2/source5.cs",
                "src/project/compiler/preprocess/preprocess-source1.cs",
                "src/project/compiler/preprocess/sub/preprocess-source2.cs",
                "src/project/compiler/preprocess/sub/sub/preprocess-source3.cs",
                "src/project/compiler/shared/shared1.cs",
                "src/project/compiler/shared/sub/shared2.cs",
                "src/project/compiler/shared/sub/sub/sharedsub.cs",
                "src/project2/source1.cs");
        }

        [Fact]
        public void StemCorrectWithDifferentWildCards()
        {
            var matcher = new Matcher();
            matcher.AddInclude("sub/*.cs");
            matcher.AddInclude("**/*.cs");

            var directoryPath = Path.Combine(_context.RootPath, "src/project");
            var results = matcher.Execute(new DirectoryInfoWrapper(new DirectoryInfo(directoryPath)));

            var actual = results.Files.Select(match => match.Stem);
            var expected = new string[] {
                "source1.cs",
                "source2.cs",
                "source3.cs",
                "sub2/source4.cs",
                "sub2/source5.cs",
                "compiler/preprocess/preprocess-source1.cs",
                "compiler/preprocess/sub/preprocess-source2.cs",
                "compiler/preprocess/sub/sub/preprocess-source3.cs",
                "compiler/shared/shared1.cs",
                "compiler/shared/sub/shared2.cs",
                "compiler/shared/sub/sub/sharedsub.cs"
            };

            Assert.Equal(
                expected.OrderBy(e => e),
                actual.OrderBy(e => e),
                StringComparer.OrdinalIgnoreCase);
        }

        [Fact]
        public void MultipleSubDirsAfterFirstWildcardMatch_HasCorrectStem()
        {
            var matcher = new Matcher();
            matcher.AddInclude("compiler/**/*.cs");

            var directoryPath = Path.Combine(_context.RootPath, "src/project");
            var results = matcher.Execute(new DirectoryInfoWrapper(new DirectoryInfo(directoryPath)));

            var actual = results.Files.Select(match => match.Stem);
            var expected = new string[] {
                "preprocess/preprocess-source1.cs",
                "preprocess/sub/preprocess-source2.cs",
                "preprocess/sub/sub/preprocess-source3.cs",
                "shared/shared1.cs",
                "shared/sub/shared2.cs",
                "shared/sub/sub/sharedsub.cs"
            };

            Assert.Equal(
                expected.OrderBy(e => e),
                actual.OrderBy(e => e),
                StringComparer.OrdinalIgnoreCase);
        }

        private DisposableFileSystem CreateContext()
        {
            var context = new DisposableFileSystem();
            context.CreateFiles(
                "src/project/source1.cs",
                "src/project/sub/source2.cs",
                "src/project/sub/source3.cs",
                "src/project/sub2/source4.cs",
                "src/project/sub2/source5.cs",
                "src/project/compiler/preprocess/preprocess-source1.cs",
                "src/project/compiler/preprocess/sub/preprocess-source2.cs",
                "src/project/compiler/preprocess/sub/sub/preprocess-source3.cs",
                "src/project/compiler/preprocess/sub/sub/preprocess-source3.txt",
                "src/project/compiler/shared/shared1.cs",
                "src/project/compiler/shared/shared1.txt",
                "src/project/compiler/shared/sub/shared2.cs",
                "src/project/compiler/shared/sub/shared2.txt",
                "src/project/compiler/shared/sub/sub/sharedsub.cs",
                "src/project/compiler/resources/resource.res",
                "src/project/compiler/resources/sub/resource2.res",
                "src/project/compiler/resources/sub/sub/resource3.res",
                "src/project/content1.txt",
                "src/project/obj/object.o",
                "src/project/bin/object",
                "src/project/.hidden/file1.hid",
                "src/project/.hidden/sub/file2.hid",
                "src/project2/source1.cs",
                "src/project2/sub/source2.cs",
                "src/project2/sub/source3.cs",
                "src/project2/sub2/source4.cs",
                "src/project2/sub2/source5.cs",
                "src/project2/compiler/preprocess/preprocess-source1.cs",
                "src/project2/compiler/preprocess/sub/preprocess-source2.cs",
                "src/project2/compiler/preprocess/sub/sub/preprocess-source3.cs",
                "src/project2/compiler/preprocess/sub/sub/preprocess-source3.txt",
                "src/project2/compiler/shared/shared1.cs",
                "src/project2/compiler/shared/shared1.txt",
                "src/project2/compiler/shared/sub/shared2.cs",
                "src/project2/compiler/shared/sub/shared2.txt",
                "src/project2/compiler/shared/sub/sub/sharedsub.cs",
                "src/project2/compiler/resources/resource.res",
                "src/project2/compiler/resources/sub/resource2.res",
                "src/project2/compiler/resources/sub/sub/resource3.res",
                "src/project2/content1.txt",
                "src/project2/obj/object.o",
                "src/project2/bin/object",
                "lib/source6.cs",
                "lib/sub3/source7.cs",
                "lib/sub4/source8.cs",
                "res/resource1.text",
                "res/resource2.text",
                "res/resource3.text",
                ".hidden/file1.hid",
                ".hidden/sub/file2.hid");

            return context;
        }

        private void ExecuteAndVerify(Matcher matcher, string directoryPath, params string[] expectFiles)
        {
            directoryPath = Path.Combine(_context.RootPath, directoryPath);
            var results = matcher.Execute(new DirectoryInfoWrapper(new DirectoryInfo(directoryPath)));

            var actual = results.Files.Select(match => Path.GetFullPath(Path.Combine(_context.RootPath, directoryPath, match.Path)));
            var expected = expectFiles.Select(relativePath => Path.GetFullPath(Path.Combine(_context.RootPath, relativePath)));

            Assert.Equal(
                expected.OrderBy(e => e),
                actual.OrderBy(e => e),
                StringComparer.OrdinalIgnoreCase);
        }
    }
}