build(web/ui): Add Gradle integration with Next.js project

This change adds support for building the OpenDC web interface project
that uses Next.js using Gradle. This enables a single build pipeline
using Gradle.

5 files changed, 68 insertions, 1 deletions

diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
index d62ade8c..dfe89d2e 100644
--- a/buildSrc/build.gradle.kts
+++ b/buildSrc/build.gradle.kts
@@ -41,4 +41,6 @@ dependencies {
 
     implementation(libs.jandex.gradle)
     implementation(libs.quarkus.gradle)
+
+    implementation(libs.gradle.node)
 }
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 24d96b5a..5aee60fd 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -4,6 +4,7 @@ clikt = "3.4.0"
 config = "1.4.2"
 commons-math3 = "3.6.1"
 dokka = "1.6.10"
+gradle-node = "3.2.1"
 hadoop = "3.3.1"
 jackson = "2.13.2"
 jandex-gradle = "0.11.0"
@@ -103,6 +104,7 @@ microprofile-openapi-api = { module = "org.eclipse.microprofile.openapi:micropro
 
 # Other (Build)
 dokka-gradle = { module = "org.jetbrains.dokka:dokka-gradle-plugin", version.ref = "dokka" }
+gradle-node = { module = "com.github.node-gradle:gradle-node-plugin", version.ref = "gradle-node" }
 jandex-gradle = { module = "org.kordamp.gradle:jandex-gradle-plugin", version.ref = "jandex-gradle" }
 ktlint-gradle = { module = "org.jlleitschuh.gradle:ktlint-gradle", version.ref = "ktlint-gradle" }
 jmh-gradle = { module = "me.champeau.jmh:jmh-gradle-plugin", version.ref = "jmh-gradle" }
diff --git a/opendc-web/opendc-web-ui/build.gradle.kts b/opendc-web/opendc-web-ui/build.gradle.kts
index 7edfd134..9063d0e3 100644
--- a/opendc-web/opendc-web-ui/build.gradle.kts
+++ b/opendc-web/opendc-web-ui/build.gradle.kts
@@ -19,3 +19,64 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
+
+import com.github.gradle.node.yarn.task.YarnTask
+
+description = "Web interface for OpenDC"
+
+plugins {
+    java
+    id("com.github.node-gradle.node")
+}
+
+val lintTask = tasks.register<YarnTask>("lintNext") {
+    args.set(listOf("lint"))
+    dependsOn(tasks.yarn)
+    inputs.dir("src")
+    inputs.files("package.json", "next.config.js", ".eslintrc")
+    outputs.upToDateWhen { true }
+}
+
+val buildTask = tasks.register<YarnTask>("buildNext") {
+    args.set(listOf("build"))
+    dependsOn(tasks.yarn)
+    inputs.dir(project.fileTree("src"))
+    inputs.dir("node_modules")
+    inputs.files("package.json", "next.config.js")
+    outputs.dir("${project.buildDir}/build")
+}
+
+tasks.register<YarnTask>("dev") {
+    args.set(listOf("dev"))
+    dependsOn(tasks.yarn)
+    inputs.dir(project.fileTree("src"))
+    inputs.dir("node_modules")
+    inputs.files("package.json", "next.config.js")
+    outputs.upToDateWhen { true }
+}
+
+tasks.register<YarnTask>("start") {
+    args.set(listOf("start"))
+    dependsOn(buildTask)
+    inputs.dir(project.fileTree("src"))
+    inputs.dir("node_modules")
+    inputs.files("package.json", "next.config.js")
+    outputs.upToDateWhen { true }
+}
+
+sourceSets {
+    java {
+        main {
+            java.srcDir("src")
+            resources.srcDir("public")
+        }
+
+        test {
+            java.srcDir("test")
+        }
+    }
+}
+
+tasks.test {
+    dependsOn(lintTask)
+}
diff --git a/opendc-web/opendc-web-ui/next.config.js b/opendc-web/opendc-web-ui/next.config.js
index ceb0900e..59341b1f 100644
--- a/opendc-web/opendc-web-ui/next.config.js
+++ b/opendc-web/opendc-web-ui/next.config.js
@@ -30,6 +30,7 @@ module.exports = withConfig({
     experimental: {
         eslint: true
     },
+    distDir: 'build/next',
     async redirects() {
         return [
             {
diff --git a/opendc-web/opendc-web-ui/package.json b/opendc-web/opendc-web-ui/package.json
index 1a4552bf..816c0177 100644
--- a/opendc-web/opendc-web-ui/package.json
+++ b/opendc-web/opendc-web-ui/package.json
@@ -69,9 +69,10 @@
         "format": "prettier --write src",
         "precommit": "lint-staged",
         "dev": "next dev",
+        "lint": "next lint",
         "build": "next build",
         "start": "next start",
-        "export": "next export -o build"
+        "export": "next export -o build/export"
     },
     "browserslist": {
         "production": [