feat: add Java and C packages

.github/workflows/maven-publish.yml

@@ -0,0 +1,77 @@
+# This workflow will build a package using Maven and then publish it to GitHub packages when a release is created
+# For more information see: https://github.com/actions/setup-java/blob/main/docs/advanced-usage.md#apache-maven-with-a-settings-path
+
+name: Maven Package
+
+on:
+  release:
+    types: [created]
+
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up JDK 8
+      uses: actions/setup-java@v3
+      with:
+        java-version: '8'
+        distribution: 'temurin'
+        server-id: github
+        settings-path: ${{ github.workspace }}
+
+    - name: Create settings.xml
+      run: |
+        echo '<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
+                            http://maven.apache.org/xsd/settings-1.0.0.xsd">
+
+        <activeProfiles>
+          <activeProfile>github</activeProfile>
+        </activeProfiles>
+
+        <profiles>
+          <profile>
+            <id>github</id>
+            <repositories>
+              <repository>
+                <id>central</id>
+                <url>https://repo1.maven.org/maven2</url>
+              </repository>
+              <repository>
+                <id>github</id>
+                <url>https://maven.pkg.github.com/gabriel-logan/Gerador-CPF-e-CNPJ-valido</url>
+                <snapshots>
+                  <enabled>true</enabled>
+                </snapshots>
+              </repository>
+            </repositories>
+          </profile>
+        </profiles>
+
+        <servers>
+          <server>
+            <id>github</id>
+            <username>gabriel-logan</username>
+            <password>${{secrets.MVN_TOKEN_GITHUB_PACKAGES}}</password>
+          </server>
+        </servers>
+        </settings>' > settings.xml
+
+    - name: Build with Maven
+      working-directory: ./packages/java
+      run: mvn -B package --file pom.xml
+
+    - name: Publish to GitHub Packages Apache Maven
+      working-directory: ./packages/java
+      run: mvn deploy -s settings.xml
+      env:
+        GITHUB_TOKEN: ${{ github.token }}

packages/c/.gitignore

@@ -0,0 +1,33 @@
+# Object files
+*.o
+
+# Executable files
+*.exe
+*.out
+
+# Compiler generated files
+*.dSYM/
+*.gcda
+*.gcno
+
+# Dependency files
+*.d
+
+# IDE configuration files
+/.vscode/
+/.idea/
+
+# Build files
+/build/
+
+# Log files
+*.log
+
+# Temporary files
+*.tmp
+
+# Backup files
+*~
+
+# Output directory
+/output/

packages/c/README.md

@@ -0,0 +1,13 @@
+# cpf-and-cnpj-generator
+
+## How to use
+
+```bash
+gcc cpfGenerator.c -o cpfGenerator
+./cpfGenerator
+```
+
+```bash
+gcc cnpjGenerator.c -o cnpjGenerator
+./cnpjGenerator
+```

packages/c/src/cnpjGenerator.c

@@ -0,0 +1,73 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+// Function to generate a random number between 0 and 9
+int randomDigit() {
+    return rand() % 10;
+}
+
+// Function to generate the first 12 digits of the CNPJ
+void generateCNPJBase(int cnpjBase[]) {
+    for (int i = 0; i < 12; i++) {
+        cnpjBase[i] = randomDigit();
+    }
+}
+
+// Function to calculate the first verifier digit
+int calculateFirstVerifier(int cnpjBase[]) {
+    int weight[12] = {5, 4, 3, 2, 9, 8, 7, 6, 5, 4, 3, 2};
+    int sum = 0;
+
+    for (int i = 0; i < 12; i++) {
+        sum += cnpjBase[i] * weight[i];
+    }
+
+    int remainder = sum % 11;
+
+    return remainder < 2 ? 0 : 11 - remainder;
+}
+
+// Function to calculate the second verifier digit
+int calculateSecondVerifier(int cnpjBase[], int firstVerifier) {
+    int weight[13] = {6, 5, 4, 3, 2, 9, 8, 7, 6, 5, 4, 3, 2};
+    int sum = 0;
+
+    for (int i = 0; i < 12; i++) {
+        sum += cnpjBase[i] * weight[i];
+    }
+
+    sum += firstVerifier * weight[12];
+
+    int remainder = sum % 11;
+
+    return remainder < 2 ? 0 : 11 - remainder;
+}
+
+void generateValidCNPJ(char* cnpj) {
+    int cnpjBase[12];
+    generateCNPJBase(cnpjBase);
+
+    int firstVerifier = calculateFirstVerifier(cnpjBase);
+
+    int cnpjBaseWithVerifier[13];
+    for (int i = 0; i < 12; i++) {
+        cnpjBaseWithVerifier[i] = cnpjBase[i];
+    }
+    cnpjBaseWithVerifier[12] = firstVerifier;
+
+    int secondVerifier = calculateSecondVerifier(cnpjBaseWithVerifier, firstVerifier);
+
+    sprintf(cnpj, "%d%d%d%d%d%d%d%d%d%d%d%d%d%d",
+            cnpjBase[0], cnpjBase[1], cnpjBase[2], cnpjBase[3], cnpjBase[4], cnpjBase[5],
+            cnpjBase[6], cnpjBase[7], cnpjBase[8], cnpjBase[9], cnpjBase[10], cnpjBase[11],
+            firstVerifier, secondVerifier);
+}
+
+int main() {
+    srand(time(NULL));
+    char cnpj[15];
+    generateValidCNPJ(cnpj);
+    printf("CNPJ válido gerado: %s\n", cnpj);
+    return 0;
+}

packages/c/src/cpfGenerator.c

@@ -0,0 +1,53 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+// Function to generate a random number between 0 and 9
+int randomNum() {
+    // generates a random number of 9 digits
+    return rand() % 10;
+}
+
+// Function to calculate the verifier digits
+int calculateDigit(int cpfArray[], int factor) {
+    // The sum is calculated by multiplying each digit by a factor and summing the results
+    int sum = 0;
+    for (int i = 0; i < factor - 1; i++) {
+        sum += cpfArray[i] * (factor - i);
+    }
+    // If the sum is less than 2, the verifier digit is 0, otherwise it is 11 minus the remainder of the sum divided by 11
+    return sum % 11 < 2 ? 0 : 11 - (sum % 11);
+}
+
+// Function to generate and validate a CPF
+void genAndValidate(char *cpf) {
+    int cpfArray[11];
+
+    // Generates an array of 9 random numbers
+    for (int i = 0; i < 9; i++) {
+        cpfArray[i] = randomNum();
+    }
+
+    // Calculates the first verifier digit
+    cpfArray[9] = calculateDigit(cpfArray, 10);
+
+    // Calculates the second verifier digit
+    cpfArray[10] = calculateDigit(cpfArray, 11);
+
+    // Converts the generated CPF numbers into a string
+    for (int i = 0; i < 11; i++) {
+        cpf[i] = '0' + cpfArray[i];
+    }
+    cpf[11] = '\0'; // Null-terminate the string
+}
+
+int main() {
+    // Seed the random number generator
+    srand(time(NULL));
+
+    char cpf[12];
+    genAndValidate(cpf);
+    printf("Generated CPF: %s\n", cpf);
+
+    return 0;
+}

packages/java/.gitignore

@@ -0,0 +1,31 @@
+# Compiled class files
+*.class
+
+# Package files
+*.jar
+*.war
+*.ear
+
+# Maven specific files
+target/
+
+# Gradle specific files
+build/
+
+# IntelliJ IDEA specific files
+.idea/
+*.iml
+*.iws
+*.ipr
+
+# Eclipse specific files
+.classpath
+.project
+.settings/
+
+# Logs
+*.log
+
+# OS specific files
+.DS_Store
+Thumbs.db

packages/java/README.md

@@ -0,0 +1,2 @@
+# cpf-and-cnpj-generator
+

packages/java/pom.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>io.github</groupId>
+    <artifactId>cpf_and_cnpj-generator</artifactId>
+    <version>0.0.1</version>
+
+    <properties>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>5.7.0</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <distributionManagement>
+        <repository>
+            <id>github</id>
+            <name>GitHub gabriel-logan Apache Maven Packages</name>
+            <url>https://maven.pkg.github.com/gabriel-logan/Gerador-CPF-e-CNPJ-valido</url>
+        </repository>
+    </distributionManagement>
+
+</project>