.github/workflows/deploy-to-hf-spaces.yml

name: Deploy to Hugging Face Spaces

on:
   push:
      branches: [main, stage] # change if your branches differ
      # paths: [ "**" ]           # OPTIONAL: uncomment to trigger on any change
   workflow_dispatch: {} # allow manual runs from the Actions tab

# prevent overlapping deploys per-branch
concurrency:
   group: hf-deploy-${{ github.ref }}
   cancel-in-progress: true

permissions:
   contents: read

jobs:
   deploy:
      runs-on: ubuntu-latest

      # map branches -> environments (useful if you add environment approvals)
      environment: ${{ github.ref_name == 'main' && 'production' || 'staging' }}

      env:
         WORKING_DIR: ${{ vars.WORKING_DIR || '.' }}

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

         - name: Resolve target Space from branch
           run: |
              if [[ "${GITHUB_REF_NAME}" == "main" ]]; then
                echo "SPACE_ID=${{ secrets.SPACE_ID_MAIN }}" >> $GITHUB_ENV
                echo "TARGET_ENV=production" >> $GITHUB_ENV
              else
                echo "SPACE_ID=${{ secrets.SPACE_ID_STAGE }}" >> $GITHUB_ENV
                echo "TARGET_ENV=staging" >> $GITHUB_ENV
              fi

         # ---------- diagnostics: fail fast if secrets are missing ----------
         - name: Verify required secrets/vars are present
           run: |
              missing=0
              test -n "${{ secrets.HF_TOKEN }}"          || { echo "❌ Missing secret: HF_TOKEN"; missing=1; }
              test -n "${{ secrets.SPACE_ID_MAIN }}"     || { echo "❌ Missing secret: SPACE_ID_MAIN"; missing=1; }
              test -n "${{ secrets.SPACE_ID_STAGE }}"    || { echo "❌ Missing secret: SPACE_ID_STAGE"; missing=1; }
              if [ $missing -ne 0 ]; then
                echo "Add these in: Settings → Secrets and variables → Actions."
                exit 1
              fi

         - name: Ensure SPACE_ID is set
           run: |
              if [ -z "${SPACE_ID}" ]; then
                echo "❌ SPACE_ID was not set by branch mapping."
                exit 1
              fi
              echo "Branch: ${GITHUB_REF_NAME}"
              echo "Environment: ${TARGET_ENV}"
              echo "Target Space (masked): ${SPACE_ID}"

         # ---------- optional: quick sanity checks before deploy ----------
         - name: Use Python
           uses: actions/setup-python@v5
           with:
              python-version: ${{ vars.PYTHON_VERSION || '3.11' }}

         - name: Cache pip
           uses: actions/cache@v4
           with:
              path: ~/.cache/pip
              key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
              restore-keys: ${{ runner.os }}-pip-

         - name: Install project deps (if any)
           if: hashFiles('requirements.txt') != ''
           run: |
              python -m pip install --upgrade pip
              pip install -r requirements.txt

         - name: Static checks (adjust/disable if not needed)
           run: |
              python -m pip install --quiet ruff
              ruff check . || (echo "Lint errors. Fix before deploy." && exit 1)

         - name: Sanity import test (non-fatal)
           continue-on-error: true
           run: |
              python - <<'PY'
              import importlib
              for mod in ("gradio","streamlit","fastapi"):
                  try:
                      importlib.import_module(mod)
                      print(f"✅ Found {mod}")
                  except Exception as e:
                      print(f"ℹ️ Skipping {mod}: {e}")
              PY

         # ---------- deploy to Hugging Face ----------
         - name: Install huggingface_hub
           run: |
              python -m pip install --upgrade "huggingface_hub>=0.22"

         - name: Upload repo to target Space
           env:
              HF_TOKEN: ${{ secrets.HF_TOKEN }}
              SPACE_ID: ${{ env.SPACE_ID }}
           run: |
              python - <<'PY'
              import os
              from huggingface_hub import upload_folder

              ignore_patterns = [
              ".github"
              ".vscode"
              ".venv"
              ".git"
              ".gitignore"
              ".gitignore"
              ]


              upload_folder(
                  folder_path=".",
                  repo_id=os.environ["SPACE_ID"],
                  repo_type="space",
                  token=os.environ["HF_TOKEN"],
                  ignore_patterns=ignore_patterns,
              )
              PY

         - name: Expose Space URL
           run: |
              echo "Deployed to https://huggingface.co/spaces/${SPACE_ID}"