#!/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"
  "harness/model-routing.yml"
  "docs/context-handoff.md"
  "spec/product.md"
  "spec/tech.md"
  "spec/acceptance.md"
  "backlog/features.json"
  "work/current.md"
  "work/history.md"
  "work/runtime-status.json"
  "scripts/install.sh"
  "scripts/agent_status.py"
  "scripts/new_ticket.py"
  "scripts/pi_orquestra.sh"
  "scripts/run_stage.py"
  "scripts/commit_feature.sh"
  "scripts/close_feature.py"
  "scripts/validate_conventional_commit.py"
  "scripts/version.py"
  "scripts/install_git_hooks.sh"
  "scripts/git-hooks/commit-msg"
  "project/VERSION"
  "platforms/pi/README.md"
  "platforms/pi/extensions/orquestra-status/index.ts"
  "platforms/pi/extensions/orquestra-web-fetch.ts"
)

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

required_dirs=("project")
for d in "${required_dirs[@]}"; do
  if [ -d "$d" ]; then
    ok "Existe directorio $d"
  else
    fail "Falta directorio $d"
    EXIT_CODE=1
  fi
done

# Check for prohibited directories
prohibited_dirs=("specs" "apps" "frontend" "src" "lib")
for d in "${prohibited_dirs[@]}"; do
  if [ -d "$d" ]; then
    fail "Directorio prohibido encontrado: $d/ (usar project/ para código)"
    EXIT_CODE=1
  fi
done
ok "Sin directorios prohibidos (specs/, apps/, frontend/, src/, lib/)"

root_product_files=$(find . -mindepth 1 -maxdepth 1 -type f \( \
  -name '*.py' -o -name '*.js' -o -name '*.ts' -o -name '*.go' -o -name '*.rs' -o \
  -name '*.java' -o -name '*.php' -o -name '*.rb' \
\) -print 2>/dev/null)
if [ -n "$root_product_files" ]; then
  fail "Archivos de producto/código en la raíz no permitidos; usar project/: $root_product_files"
  EXIT_CODE=1
else
  ok "Sin archivos de producto/código en la raíz"
fi

python3 - <<'PY'
import json
import pathlib
import re
import subprocess
import sys

root = pathlib.Path('.')
version_path = root / 'project' / 'VERSION'
semver = re.compile(r'^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:[-+][0-9A-Za-z.-]+)?$')
try:
    version = version_path.read_text(encoding='utf-8').strip()
except Exception as e:
    print(f'[FAIL] project/VERSION no se puede leer: {e}')
    sys.exit(1)
if not semver.match(version):
    print(f'[FAIL] project/VERSION no es semver válido: {version}')
    sys.exit(1)

for rel in [
    'project/package.json',
    'project/apps/admin/package.json',
    'project/apps/pos/package.json',
    'project/frontend/package.json',
    'project/storefront/package.json',
]:
    path = root / rel
    if not path.exists():
        continue
    data = json.loads(path.read_text(encoding='utf-8'))
    if data.get('version') != version:
        print(f"[FAIL] {rel} version {data.get('version')} != project/VERSION {version}")
        sys.exit(1)

try:
    msg = subprocess.check_output(['git', 'log', '-1', '--pretty=%B'], text=True).strip()
except Exception:
    msg = ''
if msg:
    result = subprocess.run(['python3', 'scripts/validate_conventional_commit.py', '--message', msg])
    if result.returncode != 0:
        print('[FAIL] Último commit no cumple Conventional Commits')
        sys.exit(1)

print(f'[OK] semver válido y sincronizado: {version}')
print('[OK] último commit cumple Conventional Commits')
PY
if [ $? -ne 0 ]; then EXIT_CODE=1; fi

echo ""
echo "── 2) Validando requisitos Pi ─────────────────────────"
if command -v pi >/dev/null 2>&1; then
  ok "Pi instalado: $(command -v pi)"
else
  fail "Pi es obligatorio antes de instalar Orquestra"
  EXIT_CODE=1
fi

ENGRAM_EXT="$HOME/.pi/agent/npm/node_modules/gentle-engram/index.ts"
if [ -f "$ENGRAM_EXT" ]; then
  ok "Engram instalado: $ENGRAM_EXT"
else
  fail "Engram es obligatorio para la memoria Orquestra: falta $ENGRAM_EXT"
  EXIT_CODE=1
fi

if [ -d ".pi/subagents" ] || [ -f ".pi/subagents.json" ]; then
  fail "Orquestra es secuencial: no debe instalar .pi/subagents ni .pi/subagents.json"
  EXIT_CODE=1
else
  ok "Sin subagentes project-local"
fi

if [ -d ".pi/extensions" ]; then
  extra_extensions=$(find .pi/extensions -mindepth 1 -maxdepth 1 \
    ! -name orquestra-status \
    ! -name orquestra-web-fetch.ts \
    -print 2>/dev/null)
  if [ -n "$extra_extensions" ]; then
    fail "Extensiones project-local no declaradas: $extra_extensions"
    EXIT_CODE=1
  else
    ok "Extensiones project-local declaradas"
  fi
else
  warn "Sin .pi/extensions; la instalación debe copiar extensiones Orquestra en proyectos"
fi

echo ""
echo "── 3) Validando backlog + runtime ─────────────────────"
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)

# Required fields for feature schema
required_fields = ['id', 'status']
# Valid gate names
valid_gate_names = {'reviewer', 'security', 'qa', 'close', 'leader'}

for f in features:
    fid = str(f.get('id', '')).strip()
    status = f.get('status')
    
    # Check required fields
    for field in required_fields:
        if field not in f:
            print(f"[FAIL] Feature {fid} missing required field: {field}")
            sys.exit(1)
    
    if status not in valid:
        print(f"[FAIL] Estado inválido en feature {fid}: {status}")
        sys.exit(1)
    
    # Validate gate nomenclature
    gates = f.get('gates', {})
    if 'review' in gates:
        print(f"[FAIL] Feature {fid} uses deprecated gate name 'review' (should be 'reviewer')")
        sys.exit(1)
    
    # Check for invalid gate names
    for gate_name in gates.keys():
        if gate_name not in valid_gate_names:
            print(f"[FAIL] Feature {fid} has invalid gate name: {gate_name}")
            sys.exit(1)

    if status == 'done':
        # Check artifacts exist
        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)

        # Check gates in backlog match artifacts
        if not gates.get('reviewer') or not gates.get('security') or not gates.get('qa'):
            print(f"[FAIL] Feature {fid} done sin gates aprobados en backlog")
            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)

runtime_path = root / 'work' / 'runtime-status.json'
try:
    runtime = json.loads(runtime_path.read_text(encoding='utf-8'))
except Exception as e:
    print(f"[FAIL] work/runtime-status.json inválido: {e}")
    sys.exit(1)

required_runtime = ['feature_id', 'stage', 'agent', 'action', 'state', 'next_agent', 'waiting_for', 'updated_at', 'timeline']
missing_runtime = [key for key in required_runtime if key not in runtime]
if missing_runtime:
    print(f"[FAIL] work/runtime-status.json incompleto: {', '.join(missing_runtime)}")
    sys.exit(1)
if not isinstance(runtime.get('timeline'), list):
    print('[FAIL] work/runtime-status.json timeline debe ser una lista')
    sys.exit(1)

# Check runtime consistency with backlog
runtime_feature_id = runtime.get('feature_id')
if runtime_feature_id:
    feature_in_backlog = None
    for f in features:
        if f.get('id') == runtime_feature_id:
            feature_in_backlog = f
            break
    
    if feature_in_backlog:
        runtime_state = runtime.get('state')
        backlog_status = feature_in_backlog.get('status')
        
        # If feature is pending in backlog but running/done in runtime, that's inconsistent
        if backlog_status == 'pending' and runtime_state in ['running', 'done']:
            print(f"[FAIL] Inconsistencia: {runtime_feature_id} está pending en backlog pero {runtime_state} en runtime-status")
            sys.exit(1)

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

echo ""
echo "── 4) 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
  ok "Sin suite de producto detectada; no aplica al harness base"
fi

echo ""
echo "── 5) Resumen ─────────────────────────────────────────"
if [ $EXIT_CODE -eq 0 ]; then
  ok "Orquestra verificado. Puedes trabajar."
else
  fail "Orquestra NO verificado. Corrige antes de continuar."
fi

exit $EXIT_CODE