diff --git a/.gitattributes b/.gitattributes new file mode 100644 index 0000000..8af972c --- /dev/null +++ b/.gitattributes @@ -0,0 +1,3 @@ +/gradlew text eol=lf +*.bat text eol=crlf +*.jar binary diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..c2065bc --- /dev/null +++ b/.gitignore @@ -0,0 +1,37 @@ +HELP.md +.gradle +build/ +!gradle/wrapper/gradle-wrapper.jar +!**/src/main/**/build/ +!**/src/test/**/build/ + +### STS ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache +bin/ +!**/src/main/**/bin/ +!**/src/test/**/bin/ + +### IntelliJ IDEA ### +.idea +*.iws +*.iml +*.ipr +out/ +!**/src/main/**/out/ +!**/src/test/**/out/ + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ + +### VS Code ### +.vscode/ diff --git a/README.md b/README.md index 668a6a2..07aecbc 100644 --- a/README.md +++ b/README.md @@ -1,66 +1,13 @@ -# Reto Técnico: Procesamiento de Transacciones Bancarias (CLI) +# Procesamiento de Transacciones Bancarias CLI -## Objetivo: +## 💡 Introducción -Desarrolla una aplicación de línea de comandos (CLI) que procese un archivo CSV con transacciones bancarias y genere un reporte que incluya: +Este proyecto es una aplicación de línea de comandos desarrollada en Java 21+ con Spring Boot. Procesa un archivo CSV de transacciones bancarias para generar un reporte detallado con balance, estadísticas y transacción destacada. -- **Balance Final:** - Suma de los montos de las transacciones de tipo "Crédito" menos la suma de los montos de las transacciones de tipo "Débito". +## 🚀 Instrucciones de Ejecución -- **Transacción de Mayor Monto:** - Identificar el ID y el monto de la transacción con el valor más alto. +1. Clona el repositorio: -- **Conteo de Transacciones:** - Número total de transacciones para cada tipo ("Crédito" y "Débito"). - ---- - -## Instrucciones - -1. **Repositorio Base:** - Clona o haz un fork del repositorio base disponible en: - `https://github.com/codeableorg/interbank-academy-25` - -2. **Entrada de Datos:** - La aplicación deberá leer un archivo CSV. Ejemplo de contenido: - - ``` - id,tipo,monto - 1,Crédito,100.00 - 2,Débito,50.00 - 3,Crédito,200.00 - 4,Débito,75.00 - 5,Crédito,150.00 - ``` - -3. **Salida del Programa:** - La aplicación debe mostrar el reporte final en la terminal. - Ejemplo de salida: - - ``` - Reporte de Transacciones - --------------------------------------------- - Balance Final: 325.00 - Transacción de Mayor Monto: ID 3 - 200.00 - Conteo de Transacciones: Crédito: 3 Débito: 2 - ``` - -4. **Lenguaje de Programación:** - Utiliza el lenguaje de tu preferencia. Opciones recomendadas: - - - Python - - Java - - C# - - JavaScript (Node.js) - -5. **README del Proyecto:** - Incluye un archivo `README.md` con la siguiente estructura: - - - **Introducción:** Breve descripción del reto y su propósito. - - **Instrucciones de Ejecución:** Cómo instalar dependencias y ejecutar la aplicación. - - **Enfoque y Solución:** Lógica implementada y decisiones de diseño. - - **Estructura del Proyecto:** Archivos y carpetas principales. - -6. **Documentación y Calidad del Código:** - - Código bien documentado y fácil de leer. - - Comentarios explicando pasos clave y lógica del programa. +```bash +git clone https://github.com/codeableorg/interbank-academy-25.git +cd interbank-academy-25 diff --git a/build.gradle b/build.gradle new file mode 100644 index 0000000..67beb03 --- /dev/null +++ b/build.gradle @@ -0,0 +1,38 @@ +plugins { + id 'java' + id 'org.springframework.boot' version '3.4.4' + id 'io.spring.dependency-management' version '1.1.7' +} + +group = 'com' +version = '0.0.1-SNAPSHOT' + +java { + toolchain { + languageVersion = JavaLanguageVersion.of(22) + } +} + +configurations { + compileOnly { + extendsFrom annotationProcessor + } +} + +repositories { + mavenCentral() +} + +dependencies { + implementation 'org.springframework.boot:spring-boot-starter-webflux' + compileOnly 'org.projectlombok:lombok' + developmentOnly 'org.springframework.boot:spring-boot-devtools' + annotationProcessor 'org.projectlombok:lombok' + testImplementation 'org.springframework.boot:spring-boot-starter-test' + testImplementation 'io.projectreactor:reactor-test' + testRuntimeOnly 'org.junit.platform:junit-platform-launcher' +} + +tasks.named('test') { + useJUnitPlatform() +} diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..9bbc975 Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..37f853b --- /dev/null +++ b/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,7 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip +networkTimeout=10000 +validateDistributionUrl=true +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/gradlew b/gradlew new file mode 100644 index 0000000..faf9300 --- /dev/null +++ b/gradlew @@ -0,0 +1,251 @@ +#!/bin/sh + +# +# Copyright © 2015-2021 the original authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +# SPDX-License-Identifier: Apache-2.0 +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +# This is normally unused +# shellcheck disable=SC2034 +APP_BASE_NAME=${0##*/} +# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036) +APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD=$JAVA_HOME/jre/sh/java + else + JAVACMD=$JAVA_HOME/bin/java + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + if ! command -v java >/dev/null 2>&1 + then + die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Collect all arguments for the java command: +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, +# and any embedded shellness will be escaped. +# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be +# treated as '${Hostname}' itself on the command line. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -classpath "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# Stop when "xargs" is not available. +if ! command -v xargs >/dev/null 2>&1 +then + die "xargs is not available" +fi + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/gradlew.bat b/gradlew.bat new file mode 100644 index 0000000..9d21a21 --- /dev/null +++ b/gradlew.bat @@ -0,0 +1,94 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem +@rem SPDX-License-Identifier: Apache-2.0 +@rem + +@if "%DEBUG%"=="" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%"=="" set DIRNAME=. +@rem This is normally unused +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if %ERRORLEVEL% equ 0 goto execute + +echo. 1>&2 +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2 +echo. 1>&2 +echo Please set the JAVA_HOME variable in your environment to match the 1>&2 +echo location of your Java installation. 1>&2 + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto execute + +echo. 1>&2 +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2 +echo. 1>&2 +echo Please set the JAVA_HOME variable in your environment to match the 1>&2 +echo location of your Java installation. 1>&2 + +goto fail + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* + +:end +@rem End local scope for the variables with windows NT shell +if %ERRORLEVEL% equ 0 goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +set EXIT_CODE=%ERRORLEVEL% +if %EXIT_CODE% equ 0 set EXIT_CODE=1 +if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE% +exit /b %EXIT_CODE% + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/settings.gradle b/settings.gradle new file mode 100644 index 0000000..8c047bc --- /dev/null +++ b/settings.gradle @@ -0,0 +1 @@ +rootProject.name = 'interbank' diff --git a/src/main/java/com/interbank/InterbankApplication.java b/src/main/java/com/interbank/InterbankApplication.java new file mode 100644 index 0000000..2c72239 --- /dev/null +++ b/src/main/java/com/interbank/InterbankApplication.java @@ -0,0 +1,30 @@ +package com.interbank; + +import com.interbank.model.Transaction; +import com.interbank.service.TransactionService; +import lombok.RequiredArgsConstructor; +import org.springframework.boot.CommandLineRunner; +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; + +import java.util.List; + +@SpringBootApplication +@RequiredArgsConstructor +public class InterbankApplication implements CommandLineRunner { + + private final TransactionService transactionService; + + public static void main(String[] args) { + SpringApplication.run(InterbankApplication.class, args); + } + + @Override + public void run(String... args) { + System.out.println("Ejecutando la aplicación..."); + String csvPath = "./data.csv"; + List transactions = transactionService.loadTransactions(csvPath); + transactionService.generateReport(transactions); + } + +} diff --git a/src/main/java/com/interbank/model/Transaction.java b/src/main/java/com/interbank/model/Transaction.java new file mode 100644 index 0000000..afa0003 --- /dev/null +++ b/src/main/java/com/interbank/model/Transaction.java @@ -0,0 +1,14 @@ +package com.interbank.model; + +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.NoArgsConstructor; + +@Data +@NoArgsConstructor +@AllArgsConstructor +public class Transaction { + private int id; + private String type; + private double amount; +} diff --git a/src/main/java/com/interbank/service/TransactionService.java b/src/main/java/com/interbank/service/TransactionService.java new file mode 100644 index 0000000..3e10892 --- /dev/null +++ b/src/main/java/com/interbank/service/TransactionService.java @@ -0,0 +1,53 @@ +package com.interbank.service; + +import com.interbank.model.Transaction; +import com.interbank.util.CsvReader; +import lombok.RequiredArgsConstructor; +import org.springframework.stereotype.Service; + +import java.util.Comparator; +import java.util.List; + +@Service +@RequiredArgsConstructor +public class TransactionService { + private final CsvReader csvReader; + + public List loadTransactions(String path) { + return csvReader.readTransactions(path); + } + + public void generateReport(List transactions) { + double totalCredit = transactions.stream() + .filter(t -> t.getType().equalsIgnoreCase("Crédito")) + .mapToDouble(Transaction::getAmount) + .sum(); + + double totalDebit = transactions.stream() + .filter(t -> t.getType().equalsIgnoreCase("Débito")) + .mapToDouble(Transaction::getAmount) + .sum(); + + double balance = totalCredit - totalDebit; + + Transaction maxTransaction = transactions.stream() + .max(Comparator.comparingDouble(Transaction::getAmount)) + .orElse(null); + + long creditCount = transactions.stream() + .filter(t -> t.getType().equalsIgnoreCase("Crédito")) + .count(); + + long debitCount = transactions.stream() + .filter(t -> t.getType().equalsIgnoreCase("Débito")) + .count(); + + System.out.println("Reporte de Transacciones"); + System.out.println("---------------------------------------------"); + System.out.printf("Balance Final: %.2f%n", balance); + if (maxTransaction != null) { + System.out.printf("Transacción de Mayor Monto: ID %d - %.2f%n", maxTransaction.getId(), maxTransaction.getAmount()); + } + System.out.printf("Conteo de Transacciones: Crédito: %d Débito: %d%n", creditCount, debitCount); + } +} diff --git a/src/main/java/com/interbank/util/CsvReader.java b/src/main/java/com/interbank/util/CsvReader.java new file mode 100644 index 0000000..ef95017 --- /dev/null +++ b/src/main/java/com/interbank/util/CsvReader.java @@ -0,0 +1,37 @@ +package com.interbank.util; + +import com.interbank.model.Transaction; +import lombok.extern.slf4j.Slf4j; +import org.springframework.stereotype.Component; + +import java.io.BufferedReader; +import java.io.FileReader; +import java.util.ArrayList; +import java.util.List; + +@Slf4j +@Component +public class CsvReader { + public List readTransactions(String filePath) { + List transactions = new ArrayList<>(); + + try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) { + String line; + reader.readLine(); // Saltar cabecera + + while ((line = reader.readLine()) != null) { + String[] fields = line.split(","); + int id = Integer.parseInt(fields[0].trim()); + String type = fields[1].trim(); + double amount = Double.parseDouble(fields[2].trim()); + + transactions.add(new Transaction(id, type, amount)); + } + + } catch (Exception e) { + log.error("Error al leer el archivo CSV: {}", e.getMessage()); + } + + return transactions; + } +} diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties new file mode 100644 index 0000000..46474d5 --- /dev/null +++ b/src/main/resources/application.properties @@ -0,0 +1 @@ +spring.application.name=interbank diff --git a/src/test/java/com/interbank/InterbankApplicationTests.java b/src/test/java/com/interbank/InterbankApplicationTests.java new file mode 100644 index 0000000..0f71c8d --- /dev/null +++ b/src/test/java/com/interbank/InterbankApplicationTests.java @@ -0,0 +1,13 @@ +package com.interbank; + +import org.junit.jupiter.api.Test; +import org.springframework.boot.test.context.SpringBootTest; + +@SpringBootTest +class InterbankApplicationTests { + + @Test + void contextLoads() { + } + +}