Products and blogs

.gitignore

@@ -0,0 +1,44 @@
+.gradle
+build/
+data/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

build.gradle

@@ -0,0 +1,52 @@
+plugins {
+    id 'java'
+    id 'org.springframework.boot' version '3.4.1'
+    id 'io.spring.dependency-management' version '1.1.7'
+}
+
+group = 'com.homelabpulse'
+version = '1.0-SNAPSHOT'
+
+repositories {
+    mavenCentral()
+    maven { url 'https://repo.spring.io/milestone' }
+    maven { url 'https://repo.spring.io/snapshot' }
+}
+
+dependencies {
+    // Spring
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+    implementation 'org.springframework.boot:spring-boot-starter-validation'
+    implementation 'org.springframework.boot:spring-boot-starter-actuator'
+    implementation platform("org.springframework.ai:spring-ai-bom:1.0.0-SNAPSHOT")
+    implementation 'org.springframework.ai:spring-ai-core'
+    implementation 'org.springframework.ai:spring-ai-ollama'
+
+    // Mapstruct & Lombok
+    compileOnly 'org.projectlombok:lombok:1.18.36'
+    annotationProcessor 'org.projectlombok:lombok:1.18.36'
+    implementation 'org.mapstruct:mapstruct:1.6.3'
+    annotationProcessor 'org.mapstruct:mapstruct-processor:1.6.3'
+    implementation 'org.projectlombok:lombok-mapstruct-binding:0.2.0'
+
+    // Database
+    implementation 'org.flywaydb:flyway-core'
+    implementation 'org.flywaydb:flyway-database-postgresql'
+    implementation 'org.hibernate.orm:hibernate-core'
+    implementation 'org.postgresql:postgresql'
+
+    // Metrics
+    implementation 'io.micrometer:micrometer-registry-prometheus'
+
+    // Testing
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
+    testCompileOnly 'org.projectlombok:lombok'
+    testAnnotationProcessor 'org.projectlombok:lombok'
+    testImplementation platform('org.junit:junit-bom:5.10.0')
+    testImplementation 'org.junit.jupiter:junit-jupiter'
+}
+
+test {
+    useJUnitPlatform()
+}

docker-compose.yaml

@@ -0,0 +1,11 @@
+services:
+  postgres:
+    image: postgres:17
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: dealfinder
+    volumes:
+      - ./data/postgres:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.10-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,252 @@
+#!/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 "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$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, 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 "$JAVACMD" "$@"

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

settings.gradle

@@ -0,0 +1,2 @@
+rootProject.name = 'dealfinder'
+

src/main/java/com/homelabpulse/Application.java

@@ -0,0 +1,13 @@
+package com.homelabpulse;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
+
+@SpringBootApplication
+@EnableJpaAuditing
+public class Application {
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}

src/main/java/com/homelabpulse/config/OllamaConfig.java

@@ -0,0 +1,23 @@
+package com.homelabpulse.config;
+
+import org.springframework.ai.chat.model.ChatModel;
+import org.springframework.ai.ollama.OllamaChatModel;
+import org.springframework.ai.ollama.api.OllamaApi;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class OllamaConfig {
+    @Value("${dealfinder.ollama.baseUrl:http://localhost:11434}")
+    private String baseUrl;
+
+    @Bean
+    public ChatModel chatModel() {
+        OllamaApi api = new OllamaApi(baseUrl);
+        return OllamaChatModel.builder()
+                .ollamaApi(api)
+                .build();
+    }
+
+}

src/main/java/com/homelabpulse/config/RestControllerConfig.java

@@ -0,0 +1,15 @@
+package com.homelabpulse.config;
+
+import jakarta.persistence.EntityNotFoundException;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+@Configuration
+public class RestControllerConfig {
+    @ExceptionHandler(EntityNotFoundException.class)
+    public ResponseEntity<String> handleEntityNotFoundException(EntityNotFoundException ex) {
+        return new ResponseEntity<>(ex.getMessage(), HttpStatus.NOT_FOUND);
+    }
+}

src/main/java/com/homelabpulse/controller/BlogController.java

@@ -0,0 +1,46 @@
+package com.homelabpulse.controller;
+
+import com.homelabpulse.dto.BlogDTO;
+import com.homelabpulse.service.BlogService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/blogs")
+public class BlogController {
+    private final BlogService blogService;
+
+    @PostMapping
+    public ResponseEntity<BlogDTO> save(@RequestBody BlogDTO blogDTO) {
+        return new ResponseEntity<>(blogService.save(blogDTO), HttpStatus.CREATED);
+    }
+
+    @GetMapping
+    public ResponseEntity<List<BlogDTO>> getAll() {
+        List<BlogDTO> blogs = blogService.getAll();
+        return blogs.isEmpty() ? ResponseEntity.noContent().build() : ResponseEntity.ok(blogs);
+    }
+
+    @GetMapping("/{id}")
+    public ResponseEntity<BlogDTO> getById(@PathVariable("id") Long id) {
+        BlogDTO blogDto = blogService.getById(id);
+        if (blogDto == null) {
+            return ResponseEntity.notFound().build();
+        }
+        return ResponseEntity.ok(blogDto);
+    }
+
+    @DeleteMapping("/{id}")
+    public ResponseEntity<BlogDTO> deleteById(@PathVariable("id") Long id) {
+        BlogDTO blogDTO = blogService.deleteById(id);
+        if (blogDTO == null) {
+            return ResponseEntity.notFound().build();
+        }
+        return new ResponseEntity<>(blogDTO, HttpStatus.NO_CONTENT);
+    }
+}

src/main/java/com/homelabpulse/controller/ProductController.java

@@ -0,0 +1,46 @@
+package com.homelabpulse.controller;
+
+import com.homelabpulse.dto.ProductDTO;
+import com.homelabpulse.service.ProductService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/products")
+public class ProductController {
+    private final ProductService productService;
+
+    @PostMapping
+    public ResponseEntity<ProductDTO> save(@RequestBody ProductDTO productDTO) {
+        return new ResponseEntity<>(productService.save(productDTO), HttpStatus.CREATED);
+    }
+
+    @GetMapping
+    public ResponseEntity<List<ProductDTO>> getAll() {
+        List<ProductDTO> products = productService.getAll();
+        return products.isEmpty() ? ResponseEntity.noContent().build() : ResponseEntity.ok(products);
+    }
+
+    @GetMapping("/{id}")
+    public ResponseEntity<ProductDTO> getById(@PathVariable("id") Long id) {
+        ProductDTO productDto = productService.getById(id);
+        if (productDto == null) {
+            return ResponseEntity.notFound().build();
+        }
+        return ResponseEntity.ok(productDto);
+    }
+
+    @DeleteMapping("/{id}")
+    public ResponseEntity<ProductDTO> deleteById(@PathVariable("id") Long id) {
+        ProductDTO productDTO = productService.deleteById(id);
+        if (productDTO == null) {
+            return ResponseEntity.notFound().build();
+        }
+        return new ResponseEntity<>(productDTO, HttpStatus.NO_CONTENT);
+    }
+}

src/main/java/com/homelabpulse/dto/AuditableDTO.java

@@ -0,0 +1,13 @@
+package com.homelabpulse.dto;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.LocalDateTime;
+
+@Getter
+@Setter
+public class AuditableDTO {
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

src/main/java/com/homelabpulse/dto/BlogDTO.java

@@ -0,0 +1,16 @@
+package com.homelabpulse.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class BlogDTO extends AuditableDTO {
+    private Long id;
+    private Long productId;
+    private String content;
+}

src/main/java/com/homelabpulse/dto/ProductDTO.java

@@ -0,0 +1,17 @@
+package com.homelabpulse.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class ProductDTO extends AuditableDTO {
+    private Long id;
+    private String url;
+    private String title;
+    private String description;
+}

src/main/java/com/homelabpulse/entity/AuditableEntity.java

@@ -0,0 +1,21 @@
+package com.homelabpulse.entity;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.MappedSuperclass;
+import lombok.Data;
+import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.UpdateTimestamp;
+
+import java.time.LocalDateTime;
+
+@Data
+@MappedSuperclass
+public class AuditableEntity {
+    @CreationTimestamp
+    @Column(name = "created_at", updatable = false)
+    private LocalDateTime createdAt;
+
+    @UpdateTimestamp
+    @Column(name = "updated_at")
+    private LocalDateTime updatedAt;
+}

src/main/java/com/homelabpulse/entity/Blog.java

@@ -0,0 +1,22 @@
+package com.homelabpulse.entity;
+
+import jakarta.persistence.*;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+@Data
+@Entity
+@Table(name = "blog")
+@EqualsAndHashCode(callSuper = true)
+public class Blog extends AuditableEntity {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id", nullable = false, updatable = false)
+    private Long id;
+
+    @Column(name = "product_id")
+    private Long productId;
+
+    @Column(name = "content")
+    private String content;
+}

src/main/java/com/homelabpulse/entity/Product.java

@@ -0,0 +1,25 @@
+package com.homelabpulse.entity;
+
+import jakarta.persistence.*;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+@Data
+@Entity
+@Table(name = "product")
+@EqualsAndHashCode(callSuper = true)
+public class Product extends AuditableEntity {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id", nullable = false, updatable = false)
+    private Long id;
+
+    @Column(name = "url", nullable = false, length = 500, unique = true)
+    private String url;
+
+    @Column(name = "title", nullable = false)
+    private String title;
+
+    @Column(name = "description")
+    private String description;
+}

src/main/java/com/homelabpulse/mapper/BlogMapper.java

@@ -0,0 +1,11 @@
+package com.homelabpulse.mapper;
+
+import com.homelabpulse.dto.BlogDTO;
+import com.homelabpulse.entity.Blog;
+import org.mapstruct.Mapper;
+
+@Mapper(componentModel = "spring")
+public interface BlogMapper {
+    BlogDTO toDTO(Blog blog);
+    Blog toEntity(BlogDTO blogDTO);
+}

src/main/java/com/homelabpulse/mapper/ProductMapper.java

@@ -0,0 +1,11 @@
+package com.homelabpulse.mapper;
+
+import com.homelabpulse.dto.ProductDTO;
+import com.homelabpulse.entity.Product;
+import org.mapstruct.Mapper;
+
+@Mapper(componentModel = "spring")
+public interface ProductMapper {
+    ProductDTO toDTO(Product product);
+    Product toEntity(ProductDTO productDTO);
+}

src/main/java/com/homelabpulse/repository/BlogRepository.java

@@ -0,0 +1,9 @@
+package com.homelabpulse.repository;
+
+import com.homelabpulse.entity.Blog;
+import org.springframework.data.repository.ListCrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface BlogRepository extends ListCrudRepository<Blog, Long> {
+}

src/main/java/com/homelabpulse/repository/ProductRepository.java

@@ -0,0 +1,9 @@
+package com.homelabpulse.repository;
+
+import com.homelabpulse.entity.Product;
+import org.springframework.data.repository.ListCrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface ProductRepository extends ListCrudRepository<Product, Long> {
+}

src/main/java/com/homelabpulse/service/BlogService.java

@@ -0,0 +1,41 @@
+package com.homelabpulse.service;
+
+import com.homelabpulse.dto.BlogDTO;
+import com.homelabpulse.entity.Blog;
+import com.homelabpulse.mapper.BlogMapper;
+import com.homelabpulse.repository.BlogRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Optional;
+
+@Service
+@RequiredArgsConstructor
+public class BlogService {
+    private final BlogRepository blogRepository;
+    private final BlogMapper blogMapper;
+
+    public BlogDTO save(BlogDTO blogDTO) {
+        Blog newBlog = blogMapper.toEntity(blogDTO);
+        Blog blog = blogRepository.save(newBlog);
+        return blogMapper.toDTO(blog);
+    }
+
+    public List<BlogDTO> getAll() {
+        List<Blog> blogs = blogRepository.findAll();
+        return blogs.stream().map(blogMapper::toDTO).toList();
+    }
+
+    public BlogDTO getById(Long id) {
+        Optional<Blog> blogOpt = blogRepository.findById(id);
+        return blogOpt.map(blogMapper::toDTO).orElse(null);
+    }
+
+    public BlogDTO deleteById(Long id) {
+        Optional<Blog> blogOpt = blogRepository.findById(id);
+        BlogDTO blogDto = blogOpt.map(blogMapper::toDTO).orElse(null);
+        blogOpt.ifPresent(blogRepository::delete);
+        return blogDto;
+    }
+}

src/main/java/com/homelabpulse/service/ProductService.java

@@ -0,0 +1,41 @@
+package com.homelabpulse.service;
+
+import com.homelabpulse.dto.ProductDTO;
+import com.homelabpulse.entity.Product;
+import com.homelabpulse.mapper.ProductMapper;
+import com.homelabpulse.repository.ProductRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Optional;
+
+@Service
+@RequiredArgsConstructor
+public class ProductService {
+    private final ProductRepository productRepository;
+    private final ProductMapper productMapper;
+
+    public ProductDTO save(ProductDTO productDTO) {
+        Product newProduct = productMapper.toEntity(productDTO);
+        Product product = productRepository.save(newProduct);
+        return productMapper.toDTO(product);
+    }
+
+    public List<ProductDTO> getAll() {
+        List<Product> products = productRepository.findAll();
+        return products.stream().map(productMapper::toDTO).toList();
+    }
+
+    public ProductDTO getById(Long id) {
+        Optional<Product> productOpt = productRepository.findById(id);
+        return productOpt.map(productMapper::toDTO).orElse(null);
+    }
+
+    public ProductDTO deleteById(Long id) {
+        Optional<Product> productOpt = productRepository.findById(id);
+        ProductDTO productDto = productOpt.map(productMapper::toDTO).orElse(null);
+        productOpt.ifPresent(productRepository::delete);
+        return productDto;
+    }
+}

src/main/resources/application-local.properties

@@ -0,0 +1,8 @@
+spring.datasource.url=jdbc:postgresql://localhost:5432/dealfinder
+spring.datasource.username=postgres
+spring.datasource.password=postgres
+spring.jpa.show-sql = true
+
+logging.level.org.flywaydb=DEBUG
+
+dealfinder.ollama.baseUrl=http://10.0.0.254:11434

src/main/resources/application.properties

@@ -0,0 +1,9 @@
+spring.datasource.driverClassName = org.postgresql.Driver
+
+spring.flyway.enabled=true
+spring.flyway.locations=classpath:db/migration
+spring.flyway.baseline-on-migrate=true
+spring.flyway.out-of-order=true
+spring.flyway.validate-on-migrate=true
+
+management.endpoints.web.exposure.include=info,health,prometheus

src/main/resources/db/migration/V0__Create_Audit_Trigger_Function.sql

@@ -0,0 +1,4 @@
+-- V0__Create_Audit_Trigger_Function.sql
+
+CREATE OR REPLACE FUNCTION update_updated_at_column()
+RETURNS TRIGGER AS $$ BEGIN NEW.updated_at = CURRENT_TIMESTAMP; RETURN NEW; END; $$ LANGUAGE plpgsql;

src/main/resources/db/migration/V1__Create_Product_Table.sql

@@ -0,0 +1,15 @@
+-- V1__Create_Product_Table.sql
+
+CREATE TABLE product (
+    id BIGSERIAL PRIMARY KEY,
+    url VARCHAR(500) NOT NULL UNIQUE,
+    title VARCHAR NOT NULL,
+    description VARCHAR,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TRIGGER set_updated_at_trigger
+BEFORE UPDATE ON product
+FOR EACH ROW
+EXECUTE FUNCTION update_updated_at_column();

src/main/resources/db/migration/V2__Create_Blog_Table.sql

@@ -0,0 +1,15 @@
+-- V2__Create_Blog_Table.sql
+
+CREATE TABLE blog (
+    id BIGSERIAL PRIMARY KEY,
+    content VARCHAR,
+    product_id BIGSERIAL,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (product_id) REFERENCES product(id)
+);
+
+CREATE TRIGGER set_updated_at_trigger
+BEFORE UPDATE ON blog
+FOR EACH ROW
+EXECUTE FUNCTION update_updated_at_column();