name: Build and Push Docker Image

on:
  push:
    branches:
      - main
    tags:
      - '*'
  workflow_dispatch:

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
      - name: Install dependencies
        shell: sh
        run: |
          apk add --no-cache git wget ca-certificates

      - name: Install Kaniko
        shell: sh
        run: |
          wget -O /usr/local/bin/executor https://github.com/GoogleContainerTools/kaniko/releases/download/v1.23.2/executor-linux-amd64
          chmod +x /usr/local/bin/executor

      - name: Checkout code
        shell: sh
        run: |
          git clone https://gitea.leeworks.dev/${{ gitea.repository }}.git .
          git checkout ${{ gitea.sha }}

      - name: Determine image tags
        id: tags
        shell: sh
        run: |
          REGISTRY="gitea.leeworks.dev"
          REPO_OWNER="${{ gitea.repository_owner }}"
          REPO_NAME="${{ gitea.repository }}"

          # Extract repository name without owner
          REPO_NAME_ONLY=$(echo "$REPO_NAME" | cut -d'/' -f2)

          # Convert to lowercase for Docker registry compatibility
          REPO_OWNER_LOWER=$(echo "$REPO_OWNER" | tr '[:upper:]' '[:lower:]')
          REPO_NAME_LOWER=$(echo "$REPO_NAME_ONLY" | tr '[:upper:]' '[:lower:]')

          # Base image path
          IMAGE_BASE="${REGISTRY}/${REPO_OWNER_LOWER}/${REPO_NAME_LOWER}"

          # Determine tag based on ref
          if [[ "${{ gitea.ref }}" == refs/tags/* ]]; then
            # Tag push - use the tag name
            TAG_NAME="${{ gitea.ref_name }}"
            echo "IMAGE_TAG=${IMAGE_BASE}:${TAG_NAME}" >> $GITHUB_OUTPUT
            echo "PUSH_LATEST=true" >> $GITHUB_OUTPUT
          elif [[ "${{ gitea.ref_name }}" == "main" ]]; then
            # Main branch - use commit SHA (shortened to 7 chars) and latest
            SHORT_SHA=$(echo "${{ gitea.sha }}" | cut -c1-7)
            echo "IMAGE_TAG=${IMAGE_BASE}:${SHORT_SHA}" >> $GITHUB_OUTPUT
            echo "PUSH_LATEST=true" >> $GITHUB_OUTPUT
          else
            # Other branches - use branch name
            BRANCH_TAG=$(echo "${{ gitea.ref_name }}" | sed 's/\//-/g')
            echo "IMAGE_TAG=${IMAGE_BASE}:${BRANCH_TAG}" >> $GITHUB_OUTPUT
            echo "PUSH_LATEST=false" >> $GITHUB_OUTPUT
          fi

          echo "IMAGE_LATEST=${IMAGE_BASE}:latest" >> $GITHUB_OUTPUT

      - name: Setup Kaniko config
        shell: sh
        run: |
          mkdir -p /kaniko/.docker
          cat > /kaniko/.docker/config.json <<EOF
          {
            "auths": {
              "gitea.leeworks.dev": {
                "auth": "$(echo -n "${{ gitea.actor }}:${{ secrets.PERSONAL_TOKEN }}" | base64)"
              }
            }
          }
          EOF

      - name: Build and push with Kaniko
        shell: sh
        run: |
          echo "Building and pushing image with Kaniko..."
          if [[ "${{ steps.tags.outputs.PUSH_LATEST }}" == "true" ]]; then
            /usr/local/bin/executor \
              --context=/workspace/${{ gitea.repository }} \
              --dockerfile=Dockerfile \
              --destination=${{ steps.tags.outputs.IMAGE_TAG }} \
              --destination=${{ steps.tags.outputs.IMAGE_LATEST }}
          else
            /usr/local/bin/executor \
              --context=/workspace/${{ gitea.repository }} \
              --dockerfile=Dockerfile \
              --destination=${{ steps.tags.outputs.IMAGE_TAG }}
          fi

          echo "Build and push completed successfully!"
          echo "Image available at ${{ steps.tags.outputs.IMAGE_TAG }}"