#!/usr/bin/env bash
set -u

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
NC='\033[0m'

ok() { printf "${GREEN}[OK]${NC} %s\n" "$1"; }
warn() { printf "${YELLOW}[WARN]${NC} %s\n" "$1"; }
fail() { printf "${RED}[FAIL]${NC} %s\n" "$1"; }

EXIT_CODE=0

echo "── 1) Verificando estructura base ─────────────────────"
required=(
  "AGENTS.md"
  "CHECKPOINTS.md"
  "harness/agents.matrix.yml"
  "harness/workflow.stages.yml"
  "harness/policies/governance.md"
  "harness/policies/security.md"
  "harness/policies/quality.md"
  "harness/contracts/handoff.md"
  "harness/contracts/evidence.schema.json"
  "spec/product.md"
  "spec/tech.md"
  "spec/acceptance.md"
  "backlog/features.json"
  "work/current.md"
  "work/history.md"
)

for f in "${required[@]}"; do
  if [ -f "$f" ]; then
    ok "Existe $f"
  else
    fail "Falta $f"
    EXIT_CODE=1
  fi
done

echo ""
echo "── 2) Validando backlog + gates ───────────────────────"
python3 - <<'PY'
import json
import pathlib
import sys

root = pathlib.Path('.')
path = root / 'backlog' / 'features.json'

try:
    data = json.loads(path.read_text(encoding='utf-8'))
except Exception as e:
    print(f"[FAIL] backlog/features.json inválido: {e}")
    sys.exit(1)

valid = set(data.get('rules', {}).get('valid_status', ["pending", "in_progress", "blocked", "done"]))
features = data.get('features', [])
if not isinstance(features, list):
    print('[FAIL] features debe ser una lista')
    sys.exit(1)

in_progress = [f for f in features if f.get('status') == 'in_progress']
if len(in_progress) > 1:
    print(f"[FAIL] Hay {len(in_progress)} features in_progress (máximo 1)")
    sys.exit(1)

for f in features:
    fid = str(f.get('id', '')).strip()
    status = f.get('status')
    if status not in valid:
        print(f"[FAIL] Estado inválido en feature {fid}: {status}")
        sys.exit(1)

    if status == 'done':
        d = root / 'work' / 'artifacts' / fid
        req = ['reviewer.json', 'security.json', 'qa.json', 'leader-close.json']
        missing = [name for name in req if not (d / name).is_file()]
        if missing:
            print(f"[FAIL] Feature {fid} done sin artefactos: {', '.join(missing)}")
            sys.exit(1)

        expected = {
            'reviewer.json': 'reviewer',
            'security.json': 'security',
            'qa.json': 'qa',
            'leader-close.json': 'leader',
        }
        for filename, agent in expected.items():
            try:
                obj = json.loads((d / filename).read_text(encoding='utf-8'))
            except Exception as e:
                print(f"[FAIL] {fid}/{filename} inválido: {e}")
                sys.exit(1)

            if obj.get('agent') != agent:
                print(f"[FAIL] {fid}/{filename} agent debe ser '{agent}'")
                sys.exit(1)
            if obj.get('verdict') != 'APPROVED':
                print(f"[FAIL] {fid}/{filename} no está APPROVED")
                sys.exit(1)

print(f"[OK] backlog válido ({len(features)} features)")
PY
if [ $? -ne 0 ]; then EXIT_CODE=1; fi

echo ""
echo "── 3) Verificación de tests/build (opcional auto-detect) ─"
if [ -f "Makefile" ] && grep -qE '^test:' Makefile; then
  if make test; then ok "make test OK"; else fail "make test falló"; EXIT_CODE=1; fi
elif [ -f "package.json" ]; then
  if command -v npm >/dev/null 2>&1; then
    if npm test --silent --if-present; then ok "npm test OK"; else fail "npm test falló"; EXIT_CODE=1; fi
  else
    warn "package.json detectado pero npm no está disponible"
  fi
elif [ -d "tests" ]; then
  if command -v pytest >/dev/null 2>&1; then
    if pytest -q; then ok "pytest OK"; else fail "pytest falló"; EXIT_CODE=1; fi
  else
    if python3 -m unittest discover -s tests -v; then ok "unittest OK"; else fail "unittest falló"; EXIT_CODE=1; fi
  fi
else
  warn "No se detectó suite automática (tests/ | Makefile test | package.json test)"
fi

echo ""
echo "── 4) Resumen ─────────────────────────────────────────"
if [ $EXIT_CODE -eq 0 ]; then
  ok "Harness verificado. Puedes trabajar."
else
  fail "Harness NO verificado. Corrige antes de continuar."
fi

exit $EXIT_CODE