name: dogfood

on:
  push:
    branches:
      - main
    paths:
      - "dogfood/**"
      - ".github/workflows/dogfood.yaml"
      - "flake.lock"
      - "flake.nix"
  pull_request:
    paths:
      - "dogfood/**"
      - ".github/workflows/dogfood.yaml"
      - "flake.lock"
      - "flake.nix"
  workflow_dispatch:

permissions:
  # Necessary for GCP authentication (https://github.com/google-github-actions/setup-gcloud#usage)
  id-token: write

jobs:
  build_image:
    if: github.actor != 'dependabot[bot]' # Skip Dependabot PRs
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Get branch name
        id: branch-name
        uses: tj-actions/branch-names@v8

      - name: "Branch name to Docker tag name"
        id: docker-tag-name
        run: |
          tag=${{ steps.branch-name.outputs.current_branch }}
          # Replace / with --, e.g. user/feature => user--feature.
          tag=${tag//\//--}
          echo "tag=${tag}" >> $GITHUB_OUTPUT

      - name: Set up Depot CLI
        uses: depot/setup-action@v1

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

      - name: Login to DockerHub
        if: github.ref == 'refs/heads/main'
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}

      - name: Build and push Non-Nix image
        uses: depot/build-push-action@v1
        with:
          project: b4q6ltmpzh
          token: ${{ secrets.DEPOT_TOKEN }}
          buildx-fallback: true
          context: "{{defaultContext}}:dogfood/contents"
          pull: true
          save: true
          push: ${{ github.ref == 'refs/heads/main' }}
          tags: "codercom/oss-dogfood:${{ steps.docker-tag-name.outputs.tag }},codercom/oss-dogfood:latest"

      - name: Build and push Nix image
        uses: depot/build-push-action@v1
        with:
          project: b4q6ltmpzh
          token: ${{ secrets.DEPOT_TOKEN }}
          buildx-fallback: true
          context: "."
          file: "dogfood/contents/Dockerfile.nix"
          pull: true
          save: true
          push: ${{ github.ref == 'refs/heads/main' }}
          tags: "codercom/oss-dogfood-nix:${{ steps.docker-tag-name.outputs.tag }},codercom/oss-dogfood-nix:latest"

  deploy_template:
    needs: build_image
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Terraform
        uses: ./.github/actions/setup-tf

      - name: Authenticate to Google Cloud
        uses: google-github-actions/auth@v2
        with:
          workload_identity_provider: projects/573722524737/locations/global/workloadIdentityPools/github/providers/github
          service_account: coder-ci@coder-dogfood.iam.gserviceaccount.com

      - name: Terraform init and validate
        run: |
          cd dogfood
          terraform init -upgrade
          terraform validate
          cd contents
          terraform init -upgrade
          terraform validate

      - name: Get short commit SHA
        if: github.ref == 'refs/heads/main'
        id: vars
        run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT

      - name: Get latest commit title
        if: github.ref == 'refs/heads/main'
        id: message
        run: echo "pr_title=$(git log --format=%s -n 1 ${{ github.sha }})" >> $GITHUB_OUTPUT

      - name: "Push template"
        if: github.ref == 'refs/heads/main'
        run: |
          cd dogfood
          terraform apply -auto-approve
        env:
          # Consumed by coderd provider
          CODER_URL: https://dev.coder.com
          CODER_SESSION_TOKEN: ${{ secrets.CODER_SESSION_TOKEN }}
          # Template source & details
          TF_VAR_CODER_TEMPLATE_NAME: ${{ secrets.CODER_TEMPLATE_NAME }}
          TF_VAR_CODER_TEMPLATE_VERSION: ${{ steps.vars.outputs.sha_short }}
          TF_VAR_CODER_TEMPLATE_DIR: ./contents
          TF_VAR_CODER_TEMPLATE_MESSAGE: ${{ steps.message.outputs.pr_title }}
          TF_LOG: info
