#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"

log() {
  printf '[validate-all] %s\n' "$1"
}

run_if_present() {
  local cmd="$1"
  if command -v ${cmd%% *} >/dev/null 2>&1; then
    eval "$cmd"
    return 0
  fi
  return 1
}

log "root: $ROOT_DIR"
cd "$ROOT_DIR"

log "Step 1/7: frontend dependency check"
if [[ ! -d "frontend/node_modules" ]]; then
  log "frontend/node_modules missing; install with: cd frontend && npm install"
fi

log "Step 2/7: frontend lint"
if [[ -f "frontend/package.json" ]]; then
  (
    cd frontend
    if npm run -s lint; then
      log "frontend lint: OK"
    else
      log "frontend lint failed"
      exit 1
    fi
  )
else
  log "frontend/package.json not found; skipping"
fi

log "Step 3/7: frontend build"
if [[ -f "frontend/package.json" ]]; then
  (
    cd frontend
    if npm run -s build; then
      log "frontend build: OK"
    else
      log "frontend build failed"
      exit 1
    fi
  )
fi

log "Step 4/7: frontend tests"
if [[ -f "frontend/package.json" ]]; then
  (
    cd frontend
    if npm run -s test; then
      log "frontend tests: OK"
    else
      log "frontend tests failed"
      exit 1
    fi
  )
fi

log "Step 5/7: backend syntax check"
PY=""
for p in \
  "$ROOT_DIR/.venv312/bin/python3.12" \
  "$ROOT_DIR/.venv312/bin/python" \
  "$ROOT_DIR/.venv/bin/python3" \
  "$ROOT_DIR/.venv/bin/python" \
  "$ROOT_DIR/venv/bin/python3" \
  "$ROOT_DIR/venv/bin/python"; do
  if [[ -x "$p" ]]; then
    PY="$p"
    break
  fi
done

if [[ -z "$PY" ]]; then
  if command -v python3 >/dev/null 2>&1; then
    PY="$(command -v python3)"
  elif command -v python >/dev/null 2>&1; then
    PY="$(command -v python)"
  fi
fi

if [[ -n "$PY" ]]; then
  log "using python: $PY"
  "$PY" -m py_compile "$ROOT_DIR/backend/main.py" "$ROOT_DIR/backend/routers/export.py"
  log "backend syntax check: OK"
else
  log "no project python found (.venv312/.venv/venv); skipping backend syntax check"
fi

log "Step 6/7: backend unit tests"
if [[ -n "$PY" ]]; then
  if find "$ROOT_DIR/backend/tests" -type f -name 'test_*.py' -print -quit 2>/dev/null | grep -q .; then
    PYTHONPATH="$ROOT_DIR/backend:$ROOT_DIR" "$PY" -m unittest discover -s "$ROOT_DIR/backend/tests" -p 'test_*.py' -v
    log "backend unit tests: OK"
  else
    log "backend unit tests: skipped (no tests found)"
  fi
fi

log "Step 7/7: backend health import smoke"
if [[ -n "$PY" ]]; then
  if [[ "${SKIP_BACKEND_IMPORT_SMOKE:-0}" == "1" ]]; then
    log "backend import smoke: skipped (SKIP_BACKEND_IMPORT_SMOKE=1)"
  else
    PYTHONPATH="$ROOT_DIR/backend:$ROOT_DIR" "$PY" - <<'PYCODE'
import importlib
mods = [
    "backend.main",
    "backend.routers.export",
    "backend.services.video_editor",
]
for m in mods:
    importlib.import_module(m)
print("backend import smoke: OK")
PYCODE
  fi
fi

log "Validation complete"