name: magicka-merge-gates

# The merge-blocking enforcement point for the Phase 0/1 acceptance gates.
# Per the spec's compliance model, acceptance may NOT be satisfied by a locally
# runnable binary, a default (fast) profile, or a documentation claim. This
# workflow is the enforcement: the `merge-gates` job below runs the full merge
# profile (1,000,000 executions, 10 perturbations each, 100% reference/runtime
# comparison, 10,000 persisted replay cases, >=500 mutants) and must be a
# REQUIRED status check on the protected branch / merge queue. If it fails or is
# absent, merge is blocked.

on:
  pull_request:
    branches: [main]
  merge_group:            # GitHub merge queue — the merge-blocking entry point
  push:
    branches: [main]

jobs:
  # Advisory PR feedback only. The spec permits a 10% fast slice for PR signal,
  # but this job is explicitly NOT acceptance and never substitutes for the
  # merge profile.
  advisory-fast:
    if: github.event_name == 'pull_request'
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@v4
      - name: Unit tests (incl. negative controls)
        run: cargo test --release --workspace
      - name: Fast advisory gate run
        env:
          MAGICKA_PROFILE: fast
        run: cargo run --release -p ci_reports --bin ci

  # The acceptance gate. Required on merge_group / protected main.
  merge-gates:
    if: github.event_name == 'merge_group' || github.event_name == 'push'
    runs-on: ubuntu-latest
    timeout-minutes: 1440
    steps:
      - uses: actions/checkout@v4

      - name: Verify committed replay corpus has >= 10,000 cases
        run: |
          lines=$(grep -vcE '^(#|master)' crates/replay_corpus/corpus/replay_corpus.tsv)
          echo "replay corpus cases: $lines"
          test "$lines" -ge 10000

      - name: Unit tests (incl. negative controls)
        run: cargo test --release --workspace

      - name: Full merge-blocking acceptance gates
        env:
          MAGICKA_PROFILE: merge
          MAGICKA_OUT: ci_out
        run: cargo run --release -p ci_reports --bin ci

      - name: Enforce required artifacts exist
        run: |
          for r in domain_participation_report causal_rank_report \
                   compression_resistance_report metamorphic_response_report \
                   mutation_survivor_report runtime_equivalence_report \
                   replay_report coverage_report provenance_report \
                   compliance_report; do
            test -s "ci_out/${r}.json" || { echo "MISSING ARTIFACT: ${r}.json"; exit 1; }
          done

      - name: Upload acceptance evidence
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: magicka-acceptance-evidence
          path: ci_out/