#!/usr/bin/env bash
# verify-web-test.sh
# Verify frontend service availability and run Playwright end-to-end tests

set -euo pipefail

echo '[INFO] Verifying Web frontend...'

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
TEST_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
REPO_ROOT="$(cd "$TEST_ROOT/../../.." && pwd)"
WEB_DIR="$REPO_ROOT/src/web"

#=============================
# Load environment variables
#=============================
if [[ -f "$TEST_ROOT/.env" ]]; then
  set -a; source "$TEST_ROOT/.env"; set +a
fi

REPORT_DIR="$WEB_DIR/playwright-report"
FRONTEND_URL="http://localhost:${WEB_PROXY_PORT_8080:-8080}"
TIMEOUT=120  # max wait time (seconds) for frontend to be ready

#=============================
# Helper functions
#=============================
GREEN="\033[32m"; RED="\033[31m"; YELLOW="\033[33m"; RESET="\033[0m"

log_info()    { echo -e "${YELLOW}[INFO]${RESET} $1"; }
log_success() { echo -e "${GREEN}[OK]${RESET} $1"; }
log_warn()    { echo -e "${YELLOW}[WARN]${RESET} $1"; }
log_error()   { echo -e "${RED}[ERROR]${RESET} $1"; }

fail_exit() { log_error "$1"; exit 1; }

#=============================
# Step 1: Wait for frontend service
#=============================
log_info "[1/4] Checking if frontend service is up (${FRONTEND_URL})..."

for ((i=1; i<=TIMEOUT; i++)); do
  STATUS_CODE=$(curl -s -o /dev/null -w "%{http_code}" "$FRONTEND_URL" || true)
  if [[ "$STATUS_CODE" == "200" ]]; then
    log_success "Frontend service is accessible at ${FRONTEND_URL}"
    break
  fi
  sleep 2
  if [[ $i -eq $TIMEOUT ]]; then
    fail_exit "Timeout waiting for frontend service to become ready (${TIMEOUT}s)."
  fi
done

#=============================
# Step 2: Run Playwright tests
#=============================
log_info "[2/4] Running Playwright automated tests in headless mode..."

cd "$WEB_DIR"

# Ensure dependencies installed
if [ ! -d "node_modules" ]; then
  log_warn "Dependencies not found. Installing via npm ci..."
  npm ci
fi

log_info "Checking Playwright browsers..."
if [ -d "node_modules/playwright" ]; then
    log_info "Found node_modules/playwright, checking if browsers are complete..."
    # 使用 dry-run 确认浏览器是否完整
    if npx playwright install --dry-run | grep -q "All required browsers are installed"; then
        log_info "All Playwright browsers are already installed, skipping installation."
        exit 0
    else
        log_info "Playwright browsers incomplete, installing..."
    fi
else
    log_info "Playwright browsers not found, installing..."
    npx playwright install --with-deps > /dev/null
fi

# Clean previous reports
rm -rf "$REPORT_DIR"

# Run Playwright tests wrapped with xvfb-run to avoid GUI
set +e  # temporarily disable exit-on-error
env BASE_URL="$FRONTEND_URL" xvfb-run --auto-servernum npx playwright test tests/playwright --reporter=list
TEST_RESULT=$?
set -e  # re-enable strict mode

#=============================
# Step 3: Check test results
#=============================
log_info "[3/4] Checking test results..."

if [[ $TEST_RESULT -eq 0 ]]; then
  log_success "All Playwright tests passed successfully."
else
  log_error "Some Playwright tests failed. Please review the test report."
fi

#=============================
# Step 4: Report generation
#=============================
log_info "[4/4] Checking Playwright report..."

if [[ -d "$REPORT_DIR" ]]; then
  log_success "Test report generated at: $REPORT_DIR"
  echo "You can view it using:"
  echo "  npx playwright show-report"
else
  log_warn "Report directory not found. Check Playwright execution logs."
fi

log_success "Web frontend verify finished."