name: CD / VPS

on:
  workflow_run:
    workflows:
      - CI
    types:
      - completed
    branches:
      - main
  workflow_dispatch:
    inputs:
      ref:
        description: 'Git ref to deploy (branch, tag, or SHA)'
        required: true
        default: 'main'

permissions:
  contents: read
  packages: write

concurrency:
  group: cd-vps-${{ github.event_name == 'workflow_dispatch' && inputs.ref || github.ref_name }}
  cancel-in-progress: false

jobs:
  detect:
    runs-on: ubuntu-latest
    outputs:
      eligible: ${{ steps.detect.outputs.eligible }}
      ref: ${{ steps.detect.outputs.ref }}
      sha: ${{ steps.detect.outputs.sha }}
    steps:
      - id: detect
        run: |
          eligible=false
          ref=""
          sha=""

          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
            eligible=true
            ref="${{ inputs.ref }}"
          elif [[ "${{ github.event_name }}" == "workflow_run" && "${{ github.event.workflow_run.conclusion }}" == "success" ]]; then
            eligible=true
            ref="${{ github.event.workflow_run.head_sha }}"
          fi

          echo "eligible=$eligible" >> "$GITHUB_OUTPUT"
          echo "ref=$ref" >> "$GITHUB_OUTPUT"
          echo "sha=${ref}" >> "$GITHUB_OUTPUT"

  build-bot:
    runs-on: ubuntu-latest
    needs: detect
    if: ${{ needs.detect.outputs.eligible == 'true' }}
    outputs:
      image: ${{ steps.meta.outputs.image }}
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ needs.detect.outputs.ref }}

      - uses: docker/setup-buildx-action@v3

      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - id: meta
        run: |
          owner="${{ github.repository_owner }}"
          owner_lc="${owner,,}"
          revision="$(git rev-parse HEAD)"
          image="ghcr.io/${owner_lc}/household-bot-bot:${revision}"
          echo "image=$image" >> "$GITHUB_OUTPUT"

      - uses: docker/build-push-action@v6
        with:
          context: .
          file: apps/bot/Dockerfile
          push: true
          tags: |
            ${{ steps.meta.outputs.image }}
          platforms: linux/amd64
          provenance: false

  build-miniapp:
    runs-on: ubuntu-latest
    needs: detect
    if: ${{ needs.detect.outputs.eligible == 'true' }}
    outputs:
      image: ${{ steps.meta.outputs.image }}
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ needs.detect.outputs.ref }}

      - uses: docker/setup-buildx-action@v3

      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - id: meta
        run: |
          owner="${{ github.repository_owner }}"
          owner_lc="${owner,,}"
          revision="$(git rev-parse HEAD)"
          image="ghcr.io/${owner_lc}/household-bot-miniapp:${revision}"
          echo "image=$image" >> "$GITHUB_OUTPUT"

      - uses: docker/build-push-action@v6
        with:
          context: .
          file: apps/miniapp/Dockerfile
          push: true
          tags: |
            ${{ steps.meta.outputs.image }}
          platforms: linux/amd64
          provenance: false

  deploy:
    runs-on: ubuntu-latest
    needs: [detect, build-bot, build-miniapp]
    if: ${{ needs.detect.outputs.eligible == 'true' }}
    env:
      VPS_HOST: ${{ vars.VPS_HOST }}
      VPS_USER: ${{ vars.VPS_USER || 'root' }}
      VPS_PORT: ${{ vars.VPS_PORT || '22' }}
      DEPLOY_ROOT: ${{ vars.VPS_DEPLOY_ROOT || '/opt/household-bot' }}
      BOT_IMAGE: ${{ needs.build-bot.outputs.image }}
      MINIAPP_IMAGE: ${{ needs.build-miniapp.outputs.image }}
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ needs.detect.outputs.ref }}

      - name: Validate deploy config
        run: |
          test -n "$VPS_HOST"
          test -n "$BOT_IMAGE"
          test -n "$MINIAPP_IMAGE"
          test -n "${{ secrets.VPS_SSH_KEY }}"

      - name: Prepare SSH
        run: |
          install -m 700 -d ~/.ssh
          printf '%s\n' '${{ secrets.VPS_SSH_KEY }}' > ~/.ssh/id_ed25519
          chmod 600 ~/.ssh/id_ed25519
          ssh-keyscan -p "$VPS_PORT" "$VPS_HOST" >> ~/.ssh/known_hosts

      - name: Upload deploy bundle
        run: |
          ssh -p "$VPS_PORT" "$VPS_USER@$VPS_HOST" "mkdir -p '$DEPLOY_ROOT/app'"
          tar czf - deploy/vps scripts/ops/vps-deploy.sh | \
            ssh -p "$VPS_PORT" "$VPS_USER@$VPS_HOST" "tar xzf - -C '$DEPLOY_ROOT/app'"

      - name: Run remote deploy
        run: |
          ssh -p "$VPS_PORT" "$VPS_USER@$VPS_HOST" \
            "export DEPLOY_ROOT='$DEPLOY_ROOT' APP_DIR='$DEPLOY_ROOT/app' ENV_DIR='$DEPLOY_ROOT/env' BOT_IMAGE='$BOT_IMAGE' MINIAPP_IMAGE='$MINIAPP_IMAGE' GHCR_USERNAME='${{ github.actor }}' GHCR_TOKEN='${{ secrets.GITHUB_TOKEN }}'; '$DEPLOY_ROOT/app/scripts/ops/vps-deploy.sh'"

      - name: Setup Bun
        uses: oven-sh/setup-bun@v2
        with:
          bun-version-file: .bun-version

      - name: Install dependencies
        run: bun install --frozen-lockfile

      - name: Smoke check
        env:
          BOT_API_URL: ${{ vars.VPS_BOT_URL || 'https://household-bot.whekin.dev' }}
          MINI_APP_URL: ${{ vars.VPS_MINIAPP_URL || 'https://household.whekin.dev' }}
          TELEGRAM_BOT_TOKEN: ${{ secrets.TELEGRAM_BOT_TOKEN }}
          TELEGRAM_EXPECTED_WEBHOOK_URL: ${{ vars.VPS_BOT_URL || 'https://household-bot.whekin.dev' }}/webhook/telegram
        run: bun run ops:deploy:smoke

      - name: Set Telegram webhook
        env:
          TELEGRAM_BOT_TOKEN: ${{ secrets.TELEGRAM_BOT_TOKEN }}
          TELEGRAM_WEBHOOK_SECRET: ${{ secrets.TELEGRAM_WEBHOOK_SECRET }}
          TELEGRAM_WEBHOOK_URL: ${{ vars.VPS_BOT_URL || 'https://household-bot.whekin.dev' }}/webhook/telegram
        run: |
          if [[ -z "${TELEGRAM_BOT_TOKEN:-}" || -z "${TELEGRAM_WEBHOOK_SECRET:-}" ]]; then
            echo "Skipping webhook sync: TELEGRAM_BOT_TOKEN or TELEGRAM_WEBHOOK_SECRET is missing"
            exit 0
          fi

          bun run ops:telegram:webhook set