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 buildah fuse-overlayfs

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

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

      - name: Login to registry
        shell: sh
        run: |
          echo "${{ secrets.PERSONAL_TOKEN }}" | buildah login --username "${{ gitea.actor }}" --password-stdin gitea.leeworks.dev

      - name: Build and push with buildah
        shell: sh
        run: |
          echo "Building image with buildah..."
          buildah bud -t ${{ steps.tags.outputs.IMAGE_TAG }} .

          echo "Pushing image..."
          buildah push ${{ steps.tags.outputs.IMAGE_TAG }}

          if [ "${{ steps.tags.outputs.PUSH_LATEST }}" = "true" ]; then
            echo "Tagging and pushing latest..."
            buildah tag ${{ steps.tags.outputs.IMAGE_TAG }} ${{ steps.tags.outputs.IMAGE_LATEST }}
            buildah push ${{ steps.tags.outputs.IMAGE_LATEST }}
          fi

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