name: Build and push Docker image

on:
  push:
    branches:
      - main
      - master
      - "release/**"
    tags:
      - "v*"
  pull_request:
    branches:
      - main
      - master
  workflow_dispatch:
    inputs:
      ollama_version:
        description: "Ollama version to build"
        required: false
        default: "0.15.6"

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}
  OLLAMA_VERSION: "0.15.6"

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    timeout-minutes: 60

    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to GitHub Container Registry
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Resolve Ollama version
        id: version
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ] && [ -n "${{ inputs.ollama_version }}" ]; then
            echo "ollama_version=${{ inputs.ollama_version }}" >> "$GITHUB_OUTPUT"
          else
            echo "ollama_version=${{ env.OLLAMA_VERSION }}" >> "$GITHUB_OUTPUT"
          fi

      - name: Extract metadata (tags, labels)
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            # Tag with ollama version on default branch
            type=raw,value=ollama-${{ steps.version.outputs.ollama_version }},enable={{is_default_branch}}
            # Tag "latest" on default branch
            type=raw,value=latest,enable={{is_default_branch}}
            # Tag with git tag (v1.0.0 -> 1.0.0)
            type=semver,pattern={{version}}
            # Tag with branch name for release branches
            type=ref,event=branch,enable=${{ startsWith(github.ref, 'refs/heads/release/') }}
            # Tag with short SHA always
            type=sha,prefix=

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          file: Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            OLLAMA_VERSION=${{ steps.version.outputs.ollama_version }}
          cache-from: type=gha
          cache-to: type=gha,mode=max