#!/usr/bin/env bash
#
# governance-check.sh — local/CI parity governance gate for the Seahaven backend.
#
# Runs the fast-path gates (G1 restore, G2 ArchitectureTests, G3 changed-file
# formatting) exactly as the `architecture-quality` workflow does. A green run
# here means the same thing locally and in CI. See QUALITY_GATES.md.
#
# Full build + test (G4/G5) are NOT run here; run them separately:
#   dotnet build SeaHavenIndustries.sln -c Release
#   dotnet test  SeaHavenIndustries.sln -c Release --no-build
#
# Usage:
#   bash scripts/governance-check.sh
#   BASE_REF=origin/dev bash scripts/governance-check.sh
#   BASE_REF=<base-sha> HEAD_REF=<head-sha> bash scripts/governance-check.sh
set -euo pipefail

SOLUTION="SeaHavenIndustries.sln"
ARCH_TEST_PROJECT="Api.SeaHavenIndustries.Tests/Api.SeaHavenIndustries.Tests.csproj"

# Comparison point for changed-file formatting. Default to the dev integration
# branch locally; CI overrides BASE_REF/HEAD_REF with the PR base/head SHAs.
BASE_REF="${BASE_REF:-origin/dev}"
HEAD_REF="${HEAD_REF:-HEAD}"

log() { printf '\n\033[1m== %s ==\033[0m\n' "$1"; }
ok()  { printf '\033[32mPASS\033[0m  %s\n' "$1"; }
bad() { printf '\033[31mFAIL\033[0m  %s\n' "$1"; }

# Resolve the base ref before using it for a diff.
if ! git rev-parse --verify --quiet "${BASE_REF}^{commit}" >/dev/null; then
  bad "G3: BASE_REF '${BASE_REF}' does not resolve to a commit (run: git fetch origin)."
  exit 1
fi

log "G1: restore"
dotnet restore "$SOLUTION"
ok "G1: restore"

log "G2: architecture boundary tests (dependency direction)"
dotnet test "$ARCH_TEST_PROJECT" \
  --no-restore \
  --filter "FullyQualifiedName~ArchitectureTests" \
  --nologo
ok "G2: ArchitectureTests"

log "G3: changed-file formatting (${BASE_REF}..${HEAD_REF})"
changed_cs=()
while IFS= read -r f; do
  changed_cs+=("$f")
done < <(
  git diff --name-only --diff-filter=ACMR "${BASE_REF}" "${HEAD_REF}" -- '*.cs'
)

if (( ${#changed_cs[@]} == 0 )); then
  printf '\033[33mSKIP\033[0m  G3: no changed C# files between %s..%s\n' "${BASE_REF}" "${HEAD_REF}"
else
  printf '  checking %d changed C# file(s)\n' "${#changed_cs[@]}"
  dotnet format "$SOLUTION" \
    --no-restore \
    --verify-no-changes \
    --include "${changed_cs[@]}"
  ok "G3: changed-file formatting"
fi

log "governance-check: all fast-path gates passed"