Add CI workflow and Gemini PR review automation

Author: jwilkinson87

.github/workflows/ci.yml

@@ -0,0 +1,148 @@
+# .github/workflows/ci.yml
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+    paths: ['**/*.kt', '**/*.kts', '.github/workflows/ci.yml']
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    if: github.event_name == 'push' || github.event_name == 'pull_request'
+    runs-on: ubuntu-latest
+    name: "Run Tests"
+
+    env:
+      GH_USERNAME: ${{ github.actor }}
+      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set envs
+        run: |
+          echo "GITHUB_CURRENT_BRANCH=${GITHUB_REF##*/}" >> $GITHUB_ENV
+          echo "GITHUB_CURRENT_REPO_NAME=${GITHUB_REPOSITORY}" >> $GITHUB_ENV
+          echo "GITHUB_CURRENT_REPO_URL=https://github.com/${GITHUB_REPOSITORY}" >> $GITHUB_ENV
+          echo "GITHUB_CURRENT_RUN_URL=https://github.com/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID}" >> $GITHUB_ENV
+          echo "GITHUB_CURRENT_RUN_ID=${GITHUB_RUN_ID}" >> $GITHUB_ENV
+          echo "GITHUB_CURRENT_RUN_TRIGGERING_ACTOR=${GITHUB_TRIGGERING_ACTOR}" >> $GITHUB_ENV
+          echo "GITHUB_CURRENT_RUN_ATTEMPT=${GITHUB_RUN_ATTEMPT}" >> $GITHUB_ENV
+
+      - name: Notify slack on test start
+        id: slack-test-start
+        uses: slackapi/[email protected]
+        with:
+          channel-id: "C060CAKN98T"
+          payload: |
+            {
+              "blocks": [
+                {
+                  "type": "section",
+                  "fields": [
+                    {
+                      "type": "mrkdwn",
+                      "text": "*Application:*\n<${{ env.GITHUB_CURRENT_REPO_URL }}|${{ env.GITHUB_CURRENT_REPO_NAME }}>"
+                    },
+                    {
+                      "type": "mrkdwn",
+                      "text": "*Branch:*\n`${{ env.GITHUB_CURRENT_BRANCH }}`"
+                    },
+                    {
+                      "type": "mrkdwn",
+                      "text": "*Tests:*\n:large_yellow_circle: Running <${{ env.GITHUB_CURRENT_RUN_URL }}|(view)>"
+                    }
+                  ]
+                }
+              ]
+            }
+        env:
+          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
+
+      - name: Set up JDK 23
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: 23
+
+      - name: Cache Gradle dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Test
+        run: ./gradlew test
+
+      - name: Notify slack on passed tests
+        id: slack-tests-passed
+        uses: slackapi/[email protected]
+        with:
+          channel-id: "C060CAKN98T"
+          update-ts: ${{ steps.slack-test-start.outputs.ts }}
+          payload: |
+            {
+              "blocks": [
+                {
+                  "type": "section",
+                  "fields": [
+                    {
+                      "type": "mrkdwn",
+                      "text": "*Application:*\n<${{ env.GITHUB_CURRENT_REPO_URL }}|${{ env.GITHUB_CURRENT_REPO_NAME }}>"
+                    },
+                    {
+                      "type": "mrkdwn",
+                      "text": "*Branch:*\n`${{ env.GITHUB_CURRENT_BRANCH }}`"
+                    },
+                    {
+                      "type": "mrkdwn",
+                      "text": "*Tests:*\n:large_green_circle: Passed <${{ env.GITHUB_CURRENT_RUN_URL }}|(view)>"
+                    }
+                  ]
+                }
+              ]
+            }
+        env:
+          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
+
+      - name: Notify slack on failed tests
+        if: ${{ failure() }}
+        id: slack-tests-failed
+        uses: slackapi/[email protected]
+        with:
+          channel-id: "C060CAKN98T"
+          update-ts: ${{ steps.slack-test-start.outputs.ts }}
+          payload: |
+            {
+              "blocks": [
+                {
+                  "type": "section",
+                  "fields": [
+                    {
+                      "type": "mrkdwn",
+                      "text": "*Application:*\n<${{ env.GITHUB_CURRENT_REPO_URL }}|${{ env.GITHUB_CURRENT_REPO_NAME }}>"
+                    },
+                    {
+                      "type": "mrkdwn",
+                      "text": "*Branch:*\n`${{ env.GITHUB_CURRENT_BRANCH }}`"
+                    },
+                    {
+                      "type": "mrkdwn",
+                      "text": "*Tests:*\n:red_circle: Failed <${{ env.GITHUB_CURRENT_RUN_URL }}|(view)>"
+                    }
+                  ]
+                }
+              ]
+            }
+        env:
+          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}