Removed unused feature.

Optimized use statements in main.

Simplified truth_combinations code a little.

Updated OpenAPI spec

Cargo.lock

@@ -675,7 +675,6 @@ dependencies = [
  "http-body",
  "http-body-util",
  "pin-project-lite",
- "tower",
  "tower-layer",
  "tower-service",
  "tracing",

Cargo.toml

@@ -13,7 +13,7 @@ tokio = { version = "1.38.0", features = ["macros", "rt-multi-thread"] }
 serde = { version = "1.0.203", features = ["derive", "rc"] }
 # API
 axum = { version = "0.7.5", features = ["macros"] }
-tower-http = { version = "0.5.2", features = ["cors", "trace", "normalize-path", "tower"] }
+tower-http = { version = "0.5.2", features = ["cors", "trace", "normalize-path"] }
 tower = "0.4.13"
 # Logging
 tracing = "0.1.40"

spec/dist/@typespec/openapi3/openapi.v2.yaml

@@ -1,12 +1,71 @@
 openapi: 3.0.0
 info:
-  title: Simplify Truth Expressions
+  title: Simplify Truth API
+  description: A service to simplify truth expressions, and generate truth tables.
   version: v2
-tags: []
+tags:
+  - name: Common
+  - name: Expression
+  - name: Table
 paths:
-  /simplify/{exp}:
+  /:
     get:
-      operationId: Simplify_simplify
+      tags:
+        - Common
+      operationId: Index_index
+      summary: Information
+      description: Information about this API.
+      parameters: []
+      responses:
+        '200':
+          description: The request has succeeded.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Responses.InfoResponse'
+  /is-valid/{exp}:
+    get:
+      tags:
+        - Common
+        - Expression
+      operationId: Index_isValid
+      summary: Check if an expression is valid
+      description: Check if an expression is valid.
+      parameters:
+        - name: exp
+          in: path
+          required: true
+          schema:
+            type: string
+      responses:
+        '200':
+          description: The request has succeeded.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Responses.IsValidResponse'
+  /openapi:
+    get:
+      tags:
+        - Common
+      operationId: Index_openAPI
+      summary: The OpenAPI specification
+      description: The OpenAPI specification for this API.
+      parameters: []
+      responses:
+        '200':
+          description: Returns a response as HTML, with the content type set to "text/html".
+          content:
+            text/html:
+              schema:
+                type: string
+  /simplify/table/{exp}:
+    get:
+      tags:
+        - Expression
+        - Table
+      operationId: Simplify_simplifyTable
+      summary: Simplify and generate a truth table
       parameters:
         - name: exp
           in: path
@@ -17,14 +76,62 @@ paths:
           in: query
           required: false
           schema:
-            $ref: '#/components/schemas/SimplifyOptions'
+            $ref: '#/components/schemas/Options.SimplifyTableOptions'
       responses:
         '200':
           description: The request has succeeded.
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/SimplifyResponse'
+                $ref: '#/components/schemas/Responses.SimplifyTableResponse'
+  /simplify/{exp}:
+    get:
+      tags:
+        - Expression
+      operationId: Simplify_simplify
+      summary: Simplify a truth expression
+      parameters:
+        - name: exp
+          in: path
+          required: true
+          schema:
+            type: string
+        - name: query
+          in: query
+          required: false
+          schema:
+            $ref: '#/components/schemas/Options.SimplifyOptions'
+      responses:
+        '200':
+          description: The request has succeeded.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Responses.SimplifyResponse'
+  /table/{exp}:
+    get:
+      tags:
+        - Table
+      operationId: TruthTable_simplify
+      summary: Generate a truth table
+      parameters:
+        - name: exp
+          in: path
+          required: true
+          schema:
+            type: string
+        - name: query
+          in: query
+          required: false
+          schema:
+            $ref: '#/components/schemas/Options.TableOptions'
+      responses:
+        '200':
+          description: The request has succeeded.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Responses.TruthTableResponse'
 components:
   schemas:
     Expression:
@@ -32,12 +139,14 @@ components:
         - $ref: '#/components/schemas/Models.ExpressionNot'
         - $ref: '#/components/schemas/Models.ExpressionBinary'
         - $ref: '#/components/schemas/Models.ExpressionAtomic'
+      title: A truth expression
     Models.BinaryOperator:
       type: string
       enum:
         - AND
         - OR
         - IMPLICATION
+      title: A binary operator
     Models.ExpressionAtomic:
       type: object
       required:
@@ -45,6 +154,8 @@ components:
       properties:
         atomic:
           type: string
+          title: The atomic value
+      title: An atomic expression
     Models.ExpressionBinary:
       type: object
       required:
@@ -53,52 +164,214 @@ components:
         - right
       properties:
         left:
-          $ref: '#/components/schemas/Expression'
+          allOf:
+            - $ref: '#/components/schemas/Expression'
+          title: The left expression
         operator:
-          $ref: '#/components/schemas/Models.BinaryOperator'
+          allOf:
+            - $ref: '#/components/schemas/Models.BinaryOperator'
+          title: The binary operator
         right:
-          $ref: '#/components/schemas/Expression'
+          allOf:
+            - $ref: '#/components/schemas/Expression'
+          title: The right expression
+      title: A binary expression
     Models.ExpressionNot:
       type: object
       required:
         - not
       properties:
         not:
-          $ref: '#/components/schemas/Expression'
-    SimplifyOptions:
+          allOf:
+            - $ref: '#/components/schemas/Expression'
+          title: The expression to negate
+      title: The inverse of an expression
+    Models.TruthTable:
       type: object
       required:
-        - lang
-        - simplify
-        - caseSensitive
+        - header
+        - truthMatrix
+      properties:
+        header:
+          type: array
+          items:
+            type: string
+          title: The header of the truth table
+        truthMatrix:
+          type: array
+          items:
+            type: array
+            items:
+              type: boolean
+          title: The rows and columns of the truth table
+      title: A truth table
+    Options.Hide:
+      type: string
+      enum:
+        - NONE
+        - 'TRUE'
+        - 'FALSE'
+      title: Whether to hide specific rows in a truth table
+    Options.SimplifyOptions:
+      type: object
       properties:
-        lang:
-          type: string
-          enum:
-            - en
-            - nb
-          default: en
         simplify:
           type: boolean
+          title: Whether to simplify the expression
           default: true
-        caseSensitive:
+        ignoreCase:
           type: boolean
+          title: Whether to ignore case when simplifying
           default: false
-    SimplifyResponse:
+      title: Options for simplifying an expression
+    Options.SimplifyTableOptions:
+      type: object
+      properties:
+        simplify:
+          type: boolean
+          title: Whether to simplify the expression
+          default: true
+        ignoreCase:
+          type: boolean
+          title: Whether to ignore case when simplifying
+          default: false
+        sort:
+          allOf:
+            - $ref: '#/components/schemas/Options.Sort'
+          title: Sort order for the truth table
+          default: DEFAULT
+        hide:
+          allOf:
+            - $ref: '#/components/schemas/Options.Hide'
+          title: Hide specific rows in the truth table
+          default: NONE
+        hideIntermediateSteps:
+          type: boolean
+          description: |-
+            Hide intermediate steps when generating the truth table
+            For example in the expression "A and B or C", the intermediate step is: A and B
+          title: Hide intermediate steps when generating the truth table
+          default: false
+      title: Options for simplifying an expression and generating a truth table
+    Options.Sort:
+      type: string
+      enum:
+        - DEFAULT
+        - TRUE_FIRST
+        - FALSE_FIRST
+      title: Sort order for a truth table
+    Options.TableOptions:
+      type: object
+      properties:
+        sort:
+          allOf:
+            - $ref: '#/components/schemas/Options.Sort'
+          title: Sort order for the truth table
+          default: DEFAULT
+        hide:
+          allOf:
+            - $ref: '#/components/schemas/Options.Hide'
+          title: Hide specific rows in the truth table
+          default: NONE
+        hideIntermediateSteps:
+          type: boolean
+          description: |-
+            Hide intermediate steps when generating the truth table
+            For example in the expression "A and B or C", the intermediate step is: A and B
+          title: Hide intermediate steps when generating the truth table
+          default: false
+      title: Options for generating a truth table
+    Responses.InfoResponse:
+      type: object
+      required:
+        - message
+        - docs
+        - createdBy
+      properties:
+        message:
+          type: string
+        docs:
+          type: string
+        createdBy:
+          type: string
+      description: Information about this API.
+      title: Information
+    Responses.IsValidResponse:
+      type: object
+      required:
+        - isValid
+      properties:
+        isValid:
+          type: boolean
+      description: If an expression is valid.
+      title: If an expression is valid
+    Responses.SimplifyResponse:
       type: object
       required:
         - before
         - after
+        - operations
         - expression
       properties:
         before:
           type: string
+          title: Before simplification
         after:
           type: string
-        orderOfOperations:
+          title: After simplification
+        operations:
           type: array
           items:
             type: string
-          default: []
+          title: Steps taken to simplify
         expression:
-          $ref: '#/components/schemas/Expression'
+          allOf:
+            - $ref: '#/components/schemas/Expression'
+          title: The simplified expression
+      description: Response after simplifying an expression.
+      title: Simplify Response
+    Responses.SimplifyTableResponse:
+      type: object
+      required:
+        - before
+        - after
+        - operations
+        - expression
+        - truthTable
+      properties:
+        before:
+          type: string
+          title: Before simplification
+        after:
+          type: string
+          title: After simplification
+        operations:
+          type: array
+          items:
+            type: string
+          title: Steps taken to simplify
+        expression:
+          allOf:
+            - $ref: '#/components/schemas/Expression'
+          title: The simplified expression
+        truthTable:
+          allOf:
+            - $ref: '#/components/schemas/Models.TruthTable'
+          title: The truth table
+      description: Response after simplifying an expression and generating a truth table.
+      title: Simplify and Table Response
+    Responses.TruthTableResponse:
+      type: object
+      required:
+        - truthTable
+      properties:
+        truthTable:
+          allOf:
+            - $ref: '#/components/schemas/Models.TruthTable'
+          title: The truth table
+      description: Response after generating a truth table.
+      title: Truth Table Response
+    Version:
+      type: string
+      enum:
+        - v2

spec/main.tsp

@@ -1,38 +1,75 @@
 import "@typespec/http";
 import "@typespec/versioning";
 import "./models.tsp";
+import "./response.tsp";
+import "./options.tsp";
 using TypeSpec.Http;
 using TypeSpec.Versioning;
 using Models;
+using Responses;
+using Options;
+
+/**
+ * A service to simplify truth expressions, and generate truth tables.
+ */
+@service({
+  title: "Simplify Truth API",
+})
+@versioned(Version)
+namespace SimplifyTruths;
 
 enum Version {
-    v2
+  v2,
 }
 
-@versioned(Version)
-@service({
-    title: "Simplify Truth Expressions",
-    description: "Simplify truth expressions",
-})
-namespace Simplify {
-    model SimplifyResponse {
-        before: string;
-        after: string;
-        orderOfOperations?: string[] = [];
-        expression: Expression;
-    }
+@tag("Common")
+interface Index {
+  /**
+   * Information about this API.
+   */
+  @get
+  @summary("Information")
+  index(): InfoResponse;
 
-    model SimplifyOptions {
-        lang: "en" | "nb" = "en";
-        simplify: boolean = true;
-        caseSensitive: boolean = false;
-    }
+  /**
+   * The OpenAPI specification for this API.
+   */
+  @get
+  @route("/openapi")
+  @summary("The OpenAPI specification")
+  openAPI(): HTML;
 
-    @route("/simplify")
-    interface Simplify {
-        @get op simplify(
-            @path exp: string,
-            @query query?: SimplifyOptions
-        ): SimplifyResponse;
-    }
+  /**
+   * Check if an expression is valid.
+   */
+  @get
+  @tag("Expression")
+  @route("/is-valid")
+  @summary("Check if an expression is valid")
+  isValid(@path exp: string): IsValidResponse;
+}
+
+@tag("Expression")
+@route("/simplify")
+interface Simplify {
+  @get
+  @summary("Simplify a truth expression")
+  simplify(@path exp: string, @query query?: SimplifyOptions): SimplifyResponse;
+
+  @get
+  @tag("Table")
+  @route("/table")
+  @summary("Simplify and generate a truth table")
+  simplifyTable(
+    @path exp: string,
+    @query query?: SimplifyTableOptions,
+  ): SimplifyTableResponse;
+}
+
+@tag("Table")
+@route("/table")
+interface TruthTable {
+  @get
+  @summary("Generate a truth table")
+  simplify(@path exp: string, @query query?: TableOptions): TruthTableResponse;
 }

spec/models.tsp

@@ -3,29 +3,50 @@ using TypeSpec.OpenAPI;
 
 namespace Models;
 
+@summary("A binary operator")
 enum BinaryOperator {
-    AND,
-    OR,
-    IMPLICATION
+  AND,
+  OR,
+  IMPLICATION,
 }
 
+@summary("The inverse of an expression")
 model ExpressionNot {
-    not: Expression;
+  @summary("The expression to negate")
+  not: Expression;
 }
 
+@summary("A binary expression")
 model ExpressionBinary {
-    left: Expression;
-    operator: BinaryOperator;
-    right: Expression;
+  @summary("The left expression")
+  left: Expression;
+
+  @summary("The binary operator")
+  operator: BinaryOperator;
+
+  @summary("The right expression")
+  right: Expression;
 }
 
+@summary("An atomic expression")
 model ExpressionAtomic {
-    atomic: string;
+  @summary("The atomic value")
+  atomic: string;
 }
 
 @oneOf
+@summary("A truth expression")
 union Expression {
-    ExpressionNot;
-    ExpressionBinary;
-    ExpressionAtomic;
-}
+  ExpressionNot,
+  ExpressionBinary,
+  ExpressionAtomic,
+}
+
+@summary("A truth table")
+model TruthTable {
+  @summary("The header of the truth table")
+  header: string[];
+
+  @summary("The rows and columns of the truth table")
+  truthMatrix: boolean[][];
+}

spec/options.tsp

@@ -0,0 +1,46 @@
+namespace Options;
+
+@summary("Options for simplifying an expression")
+model SimplifyOptions {
+  @summary("Whether to simplify the expression")
+  simplify?: boolean = true;
+
+  @summary("Whether to ignore case when simplifying")
+  ignoreCase?: boolean = false;
+}
+
+@summary("Sort order for a truth table")
+enum Sort {
+  DEFAULT,
+  TRUE_FIRST,
+  FALSE_FIRST,
+}
+
+@summary("Whether to hide specific rows in a truth table")
+enum Hide {
+  NONE,
+  TRUE,
+  FALSE,
+}
+
+@summary("Options for generating a truth table")
+model TableOptions {
+  @summary("Sort order for the truth table")
+  sort?: Sort = Sort.DEFAULT;
+
+  @summary("Hide specific rows in the truth table")
+  hide?: Hide = Hide.NONE;
+
+  /**
+   * Hide intermediate steps when generating the truth table
+   * For example in the expression "A and B or C", the intermediate step is: A and B
+   */
+  @summary("Hide intermediate steps when generating the truth table")
+  hideIntermediateSteps?: boolean = false;
+}
+
+@summary("Options for simplifying an expression and generating a truth table")
+model SimplifyTableOptions {
+  ...SimplifyOptions;
+  ...TableOptions;
+}

spec/package.json

@@ -5,7 +5,8 @@
   "author": "Martin Berg Alstad",
   "scripts": {
     "tsp-compile": "tsp compile . --output-dir dist",
-    "redoc-build": "redocly build-docs dist/@typespec/openapi3/openapi.v2.yaml --output ../src/resources/static/openapi.html"
+    "redoc-build": "redocly build-docs dist/@typespec/openapi3/openapi.v2.yaml --output ../src/resources/static/openapi.html",
+    "tsp-format": "tsp format \"**/*.tsp\""
   },
   "dependencies": {
     "@typespec/compiler": "latest",

spec/response.tsp

@@ -0,0 +1,69 @@
+import "@typespec/http";
+import "./models.tsp";
+using TypeSpec.Http;
+using Models;
+
+namespace Responses;
+
+/**
+ * Returns a response as HTML, with the content type set to "text/html".
+ */
+@summary("Returns a response as HTML")
+model HTML {
+  @header contentType: "text/html";
+  @body _: string;
+}
+
+/**
+ * Information about this API.
+ */
+@summary("Information")
+model InfoResponse {
+  message: string;
+  docs: string;
+  createdBy: string;
+}
+
+/**
+ * If an expression is valid.
+ */
+@summary("If an expression is valid")
+model IsValidResponse {
+  isValid: boolean;
+}
+
+/**
+ * Response after simplifying an expression.
+ */
+@summary("Simplify Response")
+model SimplifyResponse {
+  @summary("Before simplification")
+  before: string;
+
+  @summary("After simplification")
+  after: string;
+
+  @summary("Steps taken to simplify")
+  operations: string[];
+
+  @summary("The simplified expression")
+  expression: Expression;
+}
+
+/**
+ * Response after generating a truth table.
+ */
+@summary("Truth Table Response")
+model TruthTableResponse {
+  @summary("The truth table")
+  truthTable: Models.TruthTable;
+}
+
+/**
+ * Response after simplifying an expression and generating a truth table.
+ */
+@summary("Simplify and Table Response")
+model SimplifyTableResponse {
+  ...SimplifyResponse;
+  ...TruthTableResponse;
+}

src/expressions/truth_table.rs

@@ -112,7 +112,7 @@ impl TruthTable {
             return vec![];
         }
         atomics.sort();
-        Self::truth_combinations(atomics.len()).iter()
+        Self::truth_combinations(atomics.len() as u32).iter()
             .filter_map(|combo| {
                 let expression = Self::resolve_expression(expression, &atomics.iter()
                     .enumerate()
@@ -127,12 +127,13 @@ impl TruthTable {
             }).collect()
     }
 
-    fn truth_combinations(count: usize) -> TruthMatrix {
-        (0..2usize.pow(count as u32))
-            .map(|i| (0..count).rev()
-                // Just trust me bro
-                .map(|j| (i >> j) & 1 == 0).collect()
-            ).collect()
+    fn truth_combinations(count: u32) -> TruthMatrix {
+        let row_len = 2usize.pow(count);
+        let rows = 0..row_len;
+        rows.map(|index| (0..count).rev()
+            // Just trust me bro
+            .map(|shift| (index >> shift) & 1 == 0).collect()
+        ).collect()
     }
 
     fn resolve_expression(expression: &Expression, booleans: &HashMap<String, bool>, header: &[String], hide_intermediate: bool) -> Vec<bool> {

src/main.rs

@@ -1,15 +1,14 @@
 use std::net::SocketAddr;
-use axum::{ServiceExt};
-use axum::extract::Request;
-use lib::{create_app, join_routes};
 
+use axum::extract::Request;
+use axum::ServiceExt;
+use lib::{create_app, join_routes};
 use tokio::net::TcpListener;
+use tower::Layer;
 use tower_http::cors::{Any, CorsLayer};
 use tower_http::normalize_path::NormalizePathLayer;
 use tower_http::trace;
 use tower_http::trace::TraceLayer;
-use tower::Layer;
-
 use tracing::Level;
 
 use crate::routing::routes::*;