Feature/plugin

.vscode/launch.json

@@ -5,18 +5,36 @@
             // Use IntelliSense to find out which attributes exist for C# debugging
             // Use hover for the description of the existing attributes
             // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md
-            "name": ".NET Core Launch (console)",
+            "name": "Launch Hidi",
             "type": "coreclr",
             "request": "launch",
             "preLaunchTask": "build",
             // If you have changed target frameworks, make sure to update the program path.
             "program": "${workspaceFolder}/src/Microsoft.OpenApi.Hidi/bin/Debug/net7.0/Microsoft.OpenApi.Hidi.dll",
-            "args": [],
+            "args": ["plugin", 
+                    "-m","C:\\Users\\darrmi\\src\\github\\microsoft\\openapi.net\\test\\Microsoft.OpenApi.Hidi.Tests\\UtilityFiles\\exampleapimanifest.json", 
+                    "--of","./output"],
             "cwd": "${workspaceFolder}/src/Microsoft.OpenApi.Hidi",
             // For more information about the 'console' field, see https://aka.ms/VSCode-CS-LaunchJson-Console
             "console": "internalConsole",
             "stopAtEntry": false
         },
+        {
+            // Use IntelliSense to find out which attributes exist for C# debugging
+            // Use hover for the description of the existing attributes
+            // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md
+            "name": "Launch Workbench",
+            "type": "coreclr",
+            "request": "launch",
+            "preLaunchTask": "build",
+            // If you have changed target frameworks, make sure to update the program path.
+            "program": "${workspaceFolder}/src/Microsoft.OpenApi.WorkBench/bin/Debug/net7.0-windows/Microsoft.OpenApi.Workbench.exe",
+            "args": [],
+            "cwd": "${workspaceFolder}/src/Microsoft.OpenApi.Workbench",
+            // For more information about the 'console' field, see https://aka.ms/VSCode-CS-LaunchJson-Console
+            "console": "internalConsole",
+            "stopAtEntry": false
+        },        
         {
             "name": ".NET Core Attach",
             "type": "coreclr",

src/Microsoft.OpenApi.Hidi/Extensions/CommandExtensions.cs

@@ -0,0 +1,19 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. 
+
+using System.Collections.Generic;
+using System.CommandLine;
+
+namespace Microsoft.OpenApi.Hidi.Extensions
+{
+    internal static class CommandExtensions
+    {
+        public static void AddOptions(this Command command, IReadOnlyList<Option> options)
+        {
+            foreach (var option in options)
+            {
+                command.AddOption(option);
+            }
+        }
+    }
+}

src/Microsoft.OpenApi.Hidi/Extensions/OpenApiExtensibleExtensions.cs

@@ -0,0 +1,25 @@
+using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Interfaces;
+using System.Collections.Generic;
+
+namespace Microsoft.OpenApi.Hidi.Extensions
+{
+    internal static class OpenApiExtensibleExtensions
+    {
+        /// <summary>
+        /// Gets an extension value from the extensions dictionary.
+        /// </summary>
+        /// <param name="extensions">A dictionary of <see cref="IOpenApiExtension"/>.</param>
+        /// <param name="extensionKey">The key corresponding to the <see cref="IOpenApiExtension"/>.</param>
+        /// <returns>A <see cref="string"/> value matching the provided extensionKey. Return null when extensionKey is not found. </returns>
+        public static string GetExtension(this IDictionary<string, IOpenApiExtension> extensions, string extensionKey)
+        {
+            string extensionValue = null;
+            if (extensions.TryGetValue(extensionKey, out var value) && value != null)
+            {
+                extensionValue = (value as OpenApiString)?.Value;
+            }
+            return extensionValue;
+        }
+    }
+}

src/Microsoft.OpenApi.Hidi/Extensions/StringExtensions.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Microsoft.OpenApi.Hidi.Extensions
+{
+    /// <summary>
+    /// Extension class for <see cref="string"/>.
+    /// </summary>
+    internal static class StringExtensions
+    {
+        /// <summary>
+        /// Checks if the specified searchValue is equal to the target string based on the specified <see cref="StringComparison"/>.
+        /// </summary>
+        /// <param name="target">The target string to commpare to.</param>
+        /// <param name="searchValue">The search string to seek.</param>
+        /// <param name="comparison">The <see cref="StringComparison"/> to use. This defaults to <see cref="StringComparison.OrdinalIgnoreCase"/>.</param>
+        /// <returns>true if the searchValue parameter occurs within this string; otherwise, false.</returns>
+        public static bool IsEquals(this string target, string searchValue, StringComparison comparison = StringComparison.OrdinalIgnoreCase)
+        {
+            if (string.IsNullOrWhiteSpace(target) || string.IsNullOrWhiteSpace(searchValue))
+            {
+                return false;
+            }
+            return target.Equals(searchValue, comparison);
+        }
+
+        /// <summary>
+        /// Splits the target string in substrings based on the specified char separator.
+        /// </summary>
+        /// <param name="target">The target string to split by char. </param>
+        /// <param name="separator">The char separator.</param>
+        /// <returns>An <see cref="IList{String}"/> containing substrings.</returns>
+        public static IList<string> SplitByChar(this string target, char separator)
+        {
+            if (string.IsNullOrWhiteSpace(target))
+            {
+                return new List<string>();
+            }
+            return target.Split(new char[] { separator }, StringSplitOptions.RemoveEmptyEntries).ToList();
+        }
+    }
+}

src/Microsoft.OpenApi.Hidi/Formatters/PowerShellFormatter.cs

@@ -0,0 +1,261 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using Humanizer;
+using Humanizer.Inflections;
+using Microsoft.OpenApi.Hidi.Extensions;
+using Microsoft.OpenApi.Models;
+using Microsoft.OpenApi.Services;
+
+namespace Microsoft.OpenApi.Hidi.Formatters
+{
+    internal class PowerShellFormatter : OpenApiVisitorBase
+    {
+        private const string DefaultPutPrefix = ".Update";
+        private const string PowerShellPutPrefix = ".Set";
+        private readonly Stack<OpenApiSchema> _schemaLoop = new();
+        private static readonly Regex s_oDataCastRegex = new("(.*(?<=[a-z]))\\.(As(?=[A-Z]).*)", RegexOptions.Compiled, TimeSpan.FromSeconds(5));
+        private static readonly Regex s_hashSuffixRegex = new(@"^[^-]+", RegexOptions.Compiled, TimeSpan.FromSeconds(5));
+        private static readonly Regex s_oDataRefRegex = new("(?<=[a-z])Ref(?=[A-Z])", RegexOptions.Compiled, TimeSpan.FromSeconds(5));
+
+        static PowerShellFormatter()
+        {
+            // Add singularization exclusions.
+            // TODO: Read exclusions from a user provided file.
+            Vocabularies.Default.AddSingular("(drive)s$", "$1"); // drives does not properly singularize to drive.               
+            Vocabularies.Default.AddSingular("(data)$", "$1"); // exclude the following from singularization.
+            Vocabularies.Default.AddSingular("(delta)$", "$1");
+            Vocabularies.Default.AddSingular("(quota)$", "$1");
+            Vocabularies.Default.AddSingular("(statistics)$", "$1");
+        }
+
+        //TODO: FHL taks for PS
+        // Fixes (Order matters):
+        // 1. Singularize operationId operationIdSegments.
+        // 2. Add '_' to verb in an operationId.
+        // 3. Fix odata cast operationIds.
+        // 4. Fix hash suffix in operationIds.
+        // 5. Fix Put operation id should have -> {xxx}_Set{Yyy}
+        // 5. Fix anyOf and oneOf schema.
+        // 6. Add AdditionalProperties to object schemas.
+
+        public override void Visit(OpenApiSchema schema)
+        {
+            AddAddtionalPropertiesToSchema(schema);
+            ResolveAnyOfSchema(schema);
+            ResolveOneOfSchema(schema);
+
+            base.Visit(schema);
+        }
+
+        public override void Visit(OpenApiPathItem pathItem)
+        {
+            if (pathItem.Operations.TryGetValue(OperationType.Put, out var value))
+            {
+                var operationId = value.OperationId;
+                pathItem.Operations[OperationType.Put].OperationId = ResolvePutOperationId(operationId);
+            }
+
+            base.Visit(pathItem);
+        }
+
+        public override void Visit(OpenApiOperation operation)
+        {
+            if (string.IsNullOrWhiteSpace(operation.OperationId))
+                throw new ArgumentException(nameof(operation), $"OperationId is required {PathString}");
+
+            var operationId = operation.OperationId;
+            var operationTypeExtension = operation.Extensions.GetExtension("x-ms-docs-operation-type");
+            if (operationTypeExtension.IsEquals("function"))
+                operation.Parameters = ResolveFunctionParameters(operation.Parameters);
+
+            // Order matters. Resolve operationId.
+            operationId = RemoveHashSuffix(operationId);
+            if (operationTypeExtension.IsEquals("action") || operationTypeExtension.IsEquals("function"))
+                operationId = RemoveKeyTypeSegment(operationId, operation.Parameters);
+            operationId = SingularizeAndDeduplicateOperationId(operationId.SplitByChar('.'));
+            operationId = ResolveODataCastOperationId(operationId);
+            operationId = ResolveByRefOperationId(operationId);
+            // Verb segment resolution should always be last. user.get -> user_Get
+            operationId = ResolveVerbSegmentInOpertationId(operationId);
+
+            operation.OperationId = operationId;
+            base.Visit(operation);
+        }
+
+        private static string ResolveVerbSegmentInOpertationId(string operationId)
+        {
+            var charPos = operationId.LastIndexOf('.', operationId.Length - 1);
+            if (operationId.Contains('_') || charPos < 0)
+                return operationId;
+            var newOperationId = new StringBuilder(operationId);
+            newOperationId[charPos] = '_';
+            operationId = newOperationId.ToString();
+            return operationId;
+        }
+
+        private static string ResolvePutOperationId(string operationId)
+        {
+            return operationId.Contains(DefaultPutPrefix) ?
+                operationId.Replace(DefaultPutPrefix, PowerShellPutPrefix) : operationId;
+        }
+
+        private static string ResolveByRefOperationId(string operationId)
+        {
+            // Update $ref path operationId name
+            // Ref key word is enclosed between lower-cased and upper-cased letters
+            // Ex.: applications_GetRefCreatedOnBehalfOf to applications_GetCreatedOnBehalfOfByRef
+            return s_oDataRefRegex.Match(operationId).Success ? $"{s_oDataRefRegex.Replace(operationId, string.Empty)}ByRef" : operationId;
+        }
+
+        private static string ResolveODataCastOperationId(string operationId)
+        {
+            var match = s_oDataCastRegex.Match(operationId);
+            return match.Success ? $"{match.Groups[1]}{match.Groups[2]}" : operationId;
+        }
+
+        private static string SingularizeAndDeduplicateOperationId(IList<string> operationIdSegments)
+        {
+            var segmentsCount = operationIdSegments.Count;
+            var lastSegmentIndex = segmentsCount - 1;
+            var singularizedSegments = new List<string>();
+
+            for (int x = 0; x < segmentsCount; x++)
+            {
+                var segment = operationIdSegments[x].Singularize(inputIsKnownToBePlural: false);
+
+                // If a segment name is contained in the previous segment, the latter is considered a duplicate.
+                // The last segment is ignored as a rule.
+                if ((x > 0 && x < lastSegmentIndex) && singularizedSegments.Last().Equals(segment, StringComparison.OrdinalIgnoreCase))
+                    continue;
+
+                singularizedSegments.Add(segment);
+            }
+            return string.Join(".", singularizedSegments);
+        }
+
+        private static string RemoveHashSuffix(string operationId)
+        {
+            // Remove hash suffix values from OperationIds.
+            return s_hashSuffixRegex.Match(operationId).Value;
+        }
+
+        private static string RemoveKeyTypeSegment(string operationId, IList<OpenApiParameter> parameters)
+        {
+            var segments = operationId.SplitByChar('.');
+            foreach (var parameter in parameters)
+            {
+                var keyTypeExtension = parameter.Extensions.GetExtension("x-ms-docs-key-type");
+                if (keyTypeExtension != null && operationId.Contains(keyTypeExtension))
+                {
+                    segments.Remove(keyTypeExtension);
+                }
+            }
+            return string.Join(".", segments);
+        }
+
+        private static IList<OpenApiParameter> ResolveFunctionParameters(IList<OpenApiParameter> parameters)
+        {
+            foreach (var parameter in parameters.Where(p => p.Content?.Any() ?? false))
+            {
+                // Replace content with a schema object of type array
+                // for structured or collection-valued function parameters
+                parameter.Content = null;
+                parameter.Schema = new OpenApiSchema
+                {
+                    Type = "array",
+                    Items = new OpenApiSchema
+                    {
+                        Type = "string"
+                    }
+                };
+            }
+            return parameters;
+        }
+
+        private void AddAddtionalPropertiesToSchema(OpenApiSchema schema)
+        {
+            if (schema != null && !_schemaLoop.Contains(schema) && "object".Equals(schema?.Type, StringComparison.OrdinalIgnoreCase))
+            {
+                schema.AdditionalProperties = new OpenApiSchema() { Type = "object" };
+
+                /* Because 'additionalProperties' are now being walked,
+                 * we need a way to keep track of visited schemas to avoid
+                 * endlessly creating and walking them in an infinite recursion.
+                 */
+                _schemaLoop.Push(schema.AdditionalProperties);
+            }
+        }
+
+        private static void ResolveOneOfSchema(OpenApiSchema schema)
+        {
+            if (schema.OneOf?.Any() ?? false)
+            {
+                var newSchema = schema.OneOf.FirstOrDefault();
+                schema.OneOf = null;
+                FlattenSchema(schema, newSchema);
+            }
+        }
+
+        private static void ResolveAnyOfSchema(OpenApiSchema schema)
+        {
+            if (schema.AnyOf?.Any() ?? false)
+            {
+                var newSchema = schema.AnyOf.FirstOrDefault();
+                schema.AnyOf = null;
+                FlattenSchema(schema, newSchema);
+            }
+        }
+
+        private static void FlattenSchema(OpenApiSchema schema, OpenApiSchema newSchema)
+        {
+            if (newSchema != null)
+            {
+                if (newSchema.Reference != null)
+                {
+                    schema.Reference = newSchema.Reference;
+                    schema.UnresolvedReference = true;
+                }
+                else
+                {
+                    // Copies schema properties based on https://github.com/microsoft/OpenAPI.NET.OData/pull/264.
+                    CopySchema(schema, newSchema);
+                }
+            }
+        }
+
+        private static void CopySchema(OpenApiSchema schema, OpenApiSchema newSchema)
+        {
+            schema.Title ??= newSchema.Title;
+            schema.Type ??= newSchema.Type;
+            schema.Format ??= newSchema.Format;
+            schema.Description ??= newSchema.Description;
+            schema.Maximum ??= newSchema.Maximum;
+            schema.ExclusiveMaximum ??= newSchema.ExclusiveMaximum;
+            schema.Minimum ??= newSchema.Minimum;
+            schema.ExclusiveMinimum ??= newSchema.ExclusiveMinimum;
+            schema.MaxLength ??= newSchema.MaxLength;
+            schema.MinLength ??= newSchema.MinLength;
+            schema.Pattern ??= newSchema.Pattern;
+            schema.MultipleOf ??= newSchema.MultipleOf;
+            schema.Not ??= newSchema.Not;
+            schema.Required ??= newSchema.Required;
+            schema.Items ??= newSchema.Items;
+            schema.MaxItems ??= newSchema.MaxItems;
+            schema.MinItems ??= newSchema.MinItems;
+            schema.UniqueItems ??= newSchema.UniqueItems;
+            schema.Properties ??= newSchema.Properties;
+            schema.MaxProperties ??= newSchema.MaxProperties;
+            schema.MinProperties ??= newSchema.MinProperties;
+            schema.Discriminator ??= newSchema.Discriminator;
+            schema.ExternalDocs ??= newSchema.ExternalDocs;
+            schema.Enum ??= newSchema.Enum;
+            schema.ReadOnly = !schema.ReadOnly ? newSchema.ReadOnly : schema.ReadOnly;
+            schema.WriteOnly = !schema.WriteOnly ? newSchema.WriteOnly : schema.WriteOnly;
+            schema.Nullable = !schema.Nullable ? newSchema.Nullable : schema.Nullable;
+            schema.Deprecated = !schema.Deprecated ? newSchema.Deprecated : schema.Deprecated;
+        }
+    }
+}