name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

concurrency:
  group: ci-${{ github.ref }}
  cancel-in-progress: true

env:
  VPS_HOST: ${{ secrets.SSH_DEPLOY_HOST }}
  VPS_USER: ${{ secrets.SSH_DEPLOY_USER }}

permissions:
  contents: read

jobs:
  test:
    name: go test + web typecheck
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v5

      - name: Set up Go
        uses: actions/setup-go@v6
        with:
          go-version: "1.25"

      - name: Go vet + test
        working-directory: backend
        run: |
          go vet ./...
          go test ./...

      - name: Set up Node + pnpm
        uses: actions/setup-node@v4
        with:
          node-version: "22"

      - name: Enable corepack pnpm
        run: corepack enable

      - name: Web typecheck + build
        working-directory: web
        run: |
          pnpm install --frozen-lockfile
          pnpm build

  build-and-deploy:
    name: build + deploy (Nix) — flowsight
    needs: test
    if: github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    timeout-minutes: 60
    steps:
      - name: Checkout
        uses: actions/checkout@v5
        with:
          fetch-depth: 0

      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@v22
        with:
          determinate: false
          extra-conf: |
            sandbox = false
            accept-flake-config = true
            extra-substituters = https://attic.asepharyana.my.id/asepharyana https://attic.asepharyana.my.id/gmw
            extra-trusted-public-keys = asepharyana:zBpY6vNI1nDJ4mU6W4q880BB0JB1qb3gRKkO/tGSMiQ= gmw:Fq2Anzuhkb+T/hftWnPcveHSi21/RzIgIOeG8pCJa88=

      - name: Cache Nix
        uses: DeterminateSystems/magic-nix-cache-action@v14
        with:
          use-flakehub: false

      - name: Build flowsight
        id: build
        run: |
          nix build .#flowsight --impure --option sandbox false --print-build-logs
          STORE_PATH=$(readlink result)
          echo "store-path=$STORE_PATH" >> "$GITHUB_OUTPUT"
          echo "Build OK flowsight: $STORE_PATH"

      - name: Setup SSH key
        env:
          SSH_KEY: ${{ secrets.SSH_DEPLOY_KEY }}
        run: |
          mkdir -p ~/.ssh
          echo "$SSH_KEY" > ~/.ssh/id_ed25519
          chmod 600 ~/.ssh/id_ed25519
          sed -i 's/\r$//' ~/.ssh/id_ed25519
          ssh-keygen -y -f ~/.ssh/id_ed25519 >/dev/null 2>&1 || { echo "SSH key invalid"; exit 1; }
          ssh-keyscan -H "$VPS_HOST" >> ~/.ssh/known_hosts 2>/dev/null
          chmod 600 ~/.ssh/known_hosts

      - name: Push to Attic cache
        env:
          ATTIC_TOKEN: ${{ secrets.ATTIC_TOKEN }}
          STORE_PATH: ${{ steps.build.outputs.store-path }}
        run: |
          ATTIC_DIR="/nix/store/fygyy3yk4rqdknxkiwkqambpnhyax0k4-attic-0.1.0"
          mkdir -p "$HOME/.config/attic"
          cat > "$HOME/.config/attic/config.toml" <<EOF
          default-server = "pub"
          [servers.pub]
          endpoint = "https://attic.asepharyana.my.id"
          token = "$ATTIC_TOKEN"
          EOF

          ATTIC_BIN=""
          if nix-store --realise "$ATTIC_DIR" 2>/dev/null; then
            ATTIC_BIN="$ATTIC_DIR/bin/attic"
          fi

          push_ok=""
          if [ -n "$ATTIC_BIN" ] && [ -x "$ATTIC_BIN" ]; then
            for attempt in 1 2 3; do
              if "$ATTIC_BIN" push pub:asepharyana "$STORE_PATH" --jobs 4 --ignore-upstream-cache-filter; then
                echo "Pushed $STORE_PATH to Attic"
                push_ok=1
                break
              fi
              echo "Attic push attempt $attempt/3 failed; retrying in 10s..."
              sleep 10
            done
          fi

          if [ -z "$push_ok" ]; then
            echo "Attic push failed; copying store path directly to VPS"
            nix copy --to "ssh://$VPS_USER@${VPS_HOST}" "$STORE_PATH"
          fi

      - name: Deploy on VPS
        env:
          STORE_PATH: ${{ steps.build.outputs.store-path }}
        run: |
          REALISE_RESULT=$(ssh "$VPS_USER@$VPS_HOST" \
            "sudo /nix/var/nix/profiles/default/bin/nix-store --realise '$STORE_PATH' 2>&1 || true")
          echo "$REALISE_RESULT"

          ssh "$VPS_USER@$VPS_HOST" \
            "sudo /nix/var/nix/profiles/default/bin/nix-env \
              --profile /nix/var/nix/profiles/flowsight \
              --set '$STORE_PATH' && \
            (cd /home/code/flowsight && git fetch origin main && git reset --hard origin/main || true) && \
            sudo mkdir -p /var/lib/flowsight/data && sudo chown -R code:code /var/lib/flowsight && \
            (sudo cp /home/code/flowsight/deploy/flowsight.service /etc/systemd/system/flowsight.service && sudo systemctl daemon-reload || true) && \
            sudo systemctl enable --now flowsight && \
            sudo systemctl restart flowsight && \
            sleep 3 && \
            sudo systemctl status flowsight --no-pager --no-legend | head -5"

      - name: Verify service
        run: |
          ssh "$VPS_USER@$VPS_HOST" \
            "curl -s -o /dev/null -w 'local:%{http_code}\n' http://localhost:4022/api/health && \
             curl -sk -o /dev/null -w 'public:%{http_code}\n' https://sectors-hackaton.asepharyana.my.id/api/health"