Restructure workflows

Author: VOID404

.github/workflows/gha-summarizer.yaml

@@ -6,33 +6,64 @@ on:
     paths-ignore:
       - "README.md"
       - "LICENSE"
-  pull_request:
-    branches:
-      - main
-    paths-ignore:
-      - "README.md"
-      - "LICENSE"
+env:
+  image: ghcr.io/${{ github.repository }}/gha-summarizer
 
 jobs:
+  build:
+    permissions:
+      contents: read
+      packages: write
+    runs-on: ubuntu-latest
+    outputs:
+      imageid: ${{ steps.docker_metadata.outputs.imageid }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
+
+      - name: Set up Docker metadata
+        id: docker_metadata
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.image }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=ref,event=tag
+            type=sha
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          push: ${{ github.event_name != 'pull_request_target' }}
+          tags: ${{ steps.docker_metadata.outputs.tags }}
+          labels: ${{ steps.docker_metadata.outputs.labels }}
+
   test:
     permissions:
       contents: read
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
 
       - name: Render template
-        uses: ./
+        uses: docker://ghcr.io/void404/gha-summarizer/gha-summarizer@main
         with:
-          template: example/template.md
-          out-file: out.md
-
-      - name: Debug ls
-        if: always()
-        run: |
-          ls -la
-          ls -la ./gha-summarizer
+          args: example/template.md out.md
 
       - name: Check if the rendered file is different
         run: |