name: Deploy

on:
  schedule:
    - cron: '0 * * * *'   # every hour on the hour
  workflow_dispatch:

jobs:
  check-changes:
    name: Detect Changed Files
    runs-on: ubuntu-latest
    timeout-minutes: 5
    outputs:
      android: ${{ steps.diff.outputs.android }}
      linux: ${{ steps.diff.outputs.linux }}

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Detect Android and Linux changes
        id: diff
        shell: bash
        env:
          FORGEJO_TOKEN: ${{ github.token }}
        run: |
          # On workflow_dispatch always build everything
          if [ "$GITHUB_EVENT_NAME" = "workflow_dispatch" ]; then
            echo "android=true" >> "$GITHUB_OUTPUT"
            echo "linux=true"   >> "$GITHUB_OUTPUT"
            exit 0
          fi

          HEAD_SHA=$(git rev-parse HEAD)

          # Skip if this exact commit was already successfully deployed (prevents
          # hourly schedule from redeploying the same commit on every tick).
          LAST_DEPLOYED_SHA=$(python3 - << 'PYEOF'
          import json, os, sys, urllib.request
          token = os.environ.get("FORGEJO_TOKEN", "")
          server = os.environ.get("GITHUB_SERVER_URL", "").rstrip("/")
          repo = os.environ.get("GITHUB_REPOSITORY", "")
          url = f"{server}/api/v1/repos/{repo}/actions/runs?workflow_id=deploy.yml&status=success&limit=5"
          req = urllib.request.Request(url, headers={"Authorization": f"token {token}"})
          try:
              with urllib.request.urlopen(req) as r:
                  data = json.loads(r.read())
              runs = [
                  r for r in data.get("workflow_runs", [])
                  if r.get("status") == "success"
              ]
              print(runs[0].get("commit_sha") or "")
          except Exception as e:
              print(f"API check failed: {e}", file=sys.stderr)
              print("")
          PYEOF
          )

          if [ -n "$LAST_DEPLOYED_SHA" ] && [ "$HEAD_SHA" = "$LAST_DEPLOYED_SHA" ]; then
            echo "HEAD $HEAD_SHA already successfully deployed — skipping"
            echo "android=false" >> "$GITHUB_OUTPUT"
            echo "linux=false"   >> "$GITHUB_OUTPUT"
            exit 0
          fi

          # Diff from the last successfully deployed commit to catch all changes since
          # that deploy, not just the most recent commit. Falls back to HEAD~1 when
          # LAST_DEPLOYED_SHA is unknown or not in local history.
          if [ -n "$LAST_DEPLOYED_SHA" ] && git cat-file -e "$LAST_DEPLOYED_SHA" 2>/dev/null; then
            echo "Diffing from last deployed SHA $LAST_DEPLOYED_SHA"
            CHANGED=$(git diff --name-only "$LAST_DEPLOYED_SHA" HEAD 2>/dev/null \
              || git show --name-only --format= HEAD)
          else
            CHANGED=$(git diff --name-only HEAD~1 HEAD 2>/dev/null \
              || git show --name-only --format= HEAD)
          fi

          echo "Changed files:"
          echo "$CHANGED"

          android_re='^(android/|integration_test/|lib/|pubspec\.yaml|pubspec\.lock|drift_schemas/|scripts/deploy_playstore\.py)'
          linux_re='^(linux/|lib/|pubspec\.yaml|pubspec\.lock)'

          echo "$CHANGED" | grep -qE "$android_re" \
            && echo "android=true" >> "$GITHUB_OUTPUT" \
            || echo "android=false" >> "$GITHUB_OUTPUT"

          echo "$CHANGED" | grep -qE "$linux_re" \
            && echo "linux=true"   >> "$GITHUB_OUTPUT" \
            || echo "linux=false"  >> "$GITHUB_OUTPUT"

  deploy-playstore:
    name: Build & Deploy to Play Store
    runs-on: ubuntu-latest
    timeout-minutes: 60
    needs: [check-changes]
    if: needs.check-changes.outputs.android == 'true'

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 100

      - name: Check runner tools
        run: |
          command -v dagger  >/dev/null 2>&1 || { echo "ERROR: dagger is not installed in the runner image. Add it to .forgejo/Dockerfile."; exit 1; }
          command -v task    >/dev/null 2>&1 || { echo "ERROR: task is not installed in the runner image. Add it to .forgejo/Dockerfile."; exit 1; }

      - name: Setup Dagger Remote Engine
        env:
          SOPS_AGE_KEY: ${{ secrets.SOPS_AGE_KEY }}
        run: scripts/setup_dagger_remote.sh

      - name: Publish Android to Play Store
        env:
          DAGGER_NO_NAG: "1"
        run: task publish-android


  deploy-apk:
    name: Build & Deploy APK to Server
    runs-on: ubuntu-latest
    timeout-minutes: 60
    needs: [check-changes]
    if: needs.check-changes.outputs.android == 'true'

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 100

      - name: Check runner tools
        run: |
          command -v dagger  >/dev/null 2>&1 || { echo "ERROR: dagger is not installed in the runner image. Add it to .forgejo/Dockerfile."; exit 1; }
          command -v task    >/dev/null 2>&1 || { echo "ERROR: task is not installed in the runner image. Add it to .forgejo/Dockerfile."; exit 1; }

      - name: Setup Dagger Remote Engine
        env:
          SOPS_AGE_KEY: ${{ secrets.SOPS_AGE_KEY }}
        run: scripts/setup_dagger_remote.sh

      - name: Build & Deploy APK to server
        env:
          DAGGER_NO_NAG: "1"
        run: task deploy-apk


  build-linux:
    name: Build Linux Release
    runs-on: ubuntu-latest
    timeout-minutes: 60
    needs: [check-changes]
    if: needs.check-changes.outputs.linux == 'true'

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 100

      - name: Check runner tools
        run: |
          command -v dagger  >/dev/null 2>&1 || { echo "ERROR: dagger is not installed in the runner image. Add it to .forgejo/Dockerfile."; exit 1; }
          command -v task    >/dev/null 2>&1 || { echo "ERROR: task is not installed in the runner image. Add it to .forgejo/Dockerfile."; exit 1; }

      - name: Setup Dagger Remote Engine
        env:
          SOPS_AGE_KEY: ${{ secrets.SOPS_AGE_KEY }}
        run: scripts/setup_dagger_remote.sh

      - name: Build & Deploy Linux to server
        env:
          DAGGER_NO_NAG: "1"
        run: task deploy-linux


  label-deploy-health:
    name: Update Deploy Health Label
    runs-on: ubuntu-latest
    needs: [deploy-playstore, deploy-apk, build-linux]
    if: |
      always() && vars.DEPLOY_HEALTH_ISSUE != '' && (
        needs.deploy-playstore.result == 'success' || needs.deploy-playstore.result == 'failure' ||
        needs.deploy-apk.result == 'success' || needs.deploy-apk.result == 'failure' ||
        needs.build-linux.result == 'success' || needs.build-linux.result == 'failure'
      )
    timeout-minutes: 5

    steps:
      - name: Set CI/Full-Pass or CI/Full-Fail label on tracking issue
        env:
          FORGEJO_TOKEN: ${{ github.token }}
          FORGEJO_URL: ${{ github.server_url }}
          DEPLOY_HEALTH_ISSUE: ${{ vars.DEPLOY_HEALTH_ISSUE }}
          ALL_SUCCEEDED: ${{ (needs.deploy-playstore.result == 'success' || needs.deploy-playstore.result == 'skipped') && (needs.deploy-apk.result == 'success' || needs.deploy-apk.result == 'skipped') && (needs.build-linux.result == 'success' || needs.build-linux.result == 'skipped') }}
        run: |
          python3 - << 'PYEOF'
          import os, json, urllib.request, urllib.error

          issue = os.environ.get("DEPLOY_HEALTH_ISSUE", "").strip()
          if not issue:
              print("DEPLOY_HEALTH_ISSUE not set; skipping")
              raise SystemExit(0)

          token = os.environ["FORGEJO_TOKEN"]
          url_base = os.environ["FORGEJO_URL"].rstrip("/")
          succeeded = os.environ.get("ALL_SUCCEEDED", "false").lower() == "true"
          add_label = "CI/Full-Pass" if succeeded else "CI/Full-Fail"
          remove_label = "CI/Full-Fail" if succeeded else "CI/Full-Pass"

          headers = {"Authorization": f"token {token}", "Content-Type": "application/json"}
          api = f"{url_base}/api/v1/repos/guettli/sharedinbox"

          def api_get(path):
              req = urllib.request.Request(f"{api}{path}", headers=headers)
              with urllib.request.urlopen(req) as r:
                  return json.loads(r.read())

          def api_put(path, body):
              data = json.dumps(body).encode()
              req = urllib.request.Request(f"{api}{path}", data=data, headers=headers, method="PUT")
              try:
                  with urllib.request.urlopen(req) as r:
                      return json.loads(r.read())
              except urllib.error.HTTPError as e:
                  print(f"PUT {path} failed: {e.read().decode()}")
                  raise

          repo_labels = api_get("/labels")
          label_map = {l["name"]: l["id"] for l in repo_labels}

          if add_label not in label_map:
              print(f"Label '{add_label}' not found in repo — create it first")
              raise SystemExit(1)

          current = api_get(f"/issues/{issue}/labels")
          keep_ids = [l["id"] for l in current if l["name"] not in ("CI/Full-Pass", "CI/Full-Fail")]
          keep_ids.append(label_map[add_label])

          api_put(f"/issues/{issue}/labels", {"labels": keep_ids})
          print(f"Set '{add_label}' on issue #{issue}")
          PYEOF