name: backend-integration-tests

on:
  push:
    branches:
      - main
      - high-performance

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

jobs:
  ai-credits:
    runs-on: docker-ready
    env:
      TEST_DATABASE_URL: ${{ secrets.TEST_DATABASE_URL }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Check for relevant changes
        id: check
        run: |
          set -euo pipefail
          if git rev-parse --verify HEAD^ >/dev/null 2>&1; then
            BASE="${{ github.event.before }}"
            if [ -z "$BASE" ] || [ "$BASE" = "0000000000000000000000000000000000000000" ] \
               || ! git rev-parse --verify "${BASE}^{commit}" >/dev/null 2>&1; then
              BASE="HEAD^"
            fi
            CHANGED_FILES="$(git diff --name-only "$BASE" HEAD)"
          else
            CHANGED_FILES="$(git ls-files)"
          fi

          run=false
          if echo "$CHANGED_FILES" | grep -Eq '^(crates/db/|Cargo\.toml|Cargo\.lock|\.forgejo/workflows/test\.yaml)'; then
            run=true
          fi
          echo "run=$run" >> "$GITHUB_OUTPUT"
          if [ "$run" = "false" ]; then
            echo "No changes relevant to crates/db - skipping integration tests."
          fi

      - name: Verify TEST_DATABASE_URL is configured
        if: steps.check.outputs.run == 'true'
        run: |
          test -n "${TEST_DATABASE_URL:-}" || { echo "TEST_DATABASE_URL secret is not set - see docs/LIVE_SERVER_RUNBOOK.md step 6"; exit 1; }

      - name: Install Rust
        if: steps.check.outputs.run == 'true'
        run: |
          set -euo pipefail
          if ! command -v cargo >/dev/null 2>&1; then
            curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable
          fi
          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"

      - name: Run ai_credits integration tests
        if: steps.check.outputs.run == 'true'
        run: |
          cargo test -p db --test ai_credits --test ai_credits_reaper -- --test-threads=1