#!/bin/bash
set -e

# Test runner script for E2E tests
# Runs Playwright tests, builds reports, and checks health

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
WEB_DIR="$PROJECT_ROOT/web"
REPORTS_DIR="$SCRIPT_DIR/reports"
TIMESTAMP=$(date +%Y%m%d_%H%M%S)

cd "$WEB_DIR"

echo "========================================="
echo "E2E Test Runner"
echo "========================================="
echo "Project root: $PROJECT_ROOT"
echo "Web directory: $WEB_DIR"
echo "Reports directory: $REPORTS_DIR"
echo "Timestamp: $TIMESTAMP"
echo "========================================="

# Create reports directory
mkdir -p "$REPORTS_DIR"
mkdir -p playwright-report
mkdir -p test-results

# Initialize report files
REPORT_JSON="$REPORTS_DIR/test-report-$TIMESTAMP.json"
REPORT_MD="$REPORTS_DIR/test-report-$TIMESTAMP.md"
SUMMARY_JSON="$REPORTS_DIR/summary-$TIMESTAMP.json"

# Create initial JSON structure
cat > "$REPORT_JSON" << EOF
{
  "timestamp": "$TIMESTAMP",
  "project_root": "$PROJECT_ROOT",
  "web_dir": "$WEB_DIR",
  "status": "running",
  "tests": [],
  "summary": {
    "total": 0,
    "passed": 0,
    "failed": 0,
    "skipped": 0,
    "duration": 0
  },
  "failures": [],
  "health_check": {
    "status": "pending",
    "app_running": false,
    "app_url": "http://localhost:3050"
  }
}
EOF

# Check if node_modules exists
if [ ! -d "node_modules" ]; then
    echo "Installing dependencies..."
    pnpm install
fi

# Check if Playwright is installed
if ! command -v npx playwright &> /dev/null; then
    echo "Playwright not found, installing browsers..."
    pnpm exec playwright install chromium
fi

echo ""
echo "Running E2E tests..."
echo "========================================="

# Run Playwright tests with JSON reporter for machine-readable output
START_TIME=$(date +%s)
pnpm exec playwright test \
    --reporter=json \
    --reporter=list \
    --output="$REPORTS_DIR/results-$TIMESTAMP.json" \
    2>&1 | tee "$REPORTS_DIR/test-output-$TIMESTAMP.log"
TEST_EXIT_CODE=$?
END_TIME=$(date +%s)
DURATION=$((END_TIME - START_TIME))

echo ""
echo "========================================="
echo "Test Results"
echo "========================================="

# Parse JSON results if available
if [ -f "$REPORTS_DIR/results-$TIMESTAMP.json" ]; then
    # Extract summary from Playwright JSON output
    TOTAL_TESTS=$(cat "$REPORTS_DIR/results-$TIMESTAMP.json" | grep -o '"expected":' | wc -l || echo "0")
    PASSED_TESTS=$(cat "$REPORTS_DIR/results-$TIMESTAMP.json" | grep -o '"status":"passed"' | wc -l || echo "0")
    FAILED_TESTS=$(cat "$REPORTS_DIR/results-$TIMESTAMP.json" | grep -o '"status":"failed"' | wc -l || echo "0")
    
    echo "Total tests: $TOTAL_TESTS"
    echo "Passed: $PASSED_TESTS"
    echo "Failed: $FAILED_TESTS"
    echo "Duration: ${DURATION}s"
else
    TOTAL_TESTS="unknown"
    PASSED_TESTS="unknown"
    FAILED_TESTS="unknown"
    echo "Test count: unknown (JSON report not available)"
fi

if [ $TEST_EXIT_CODE -eq 0 ]; then
    echo "✅ All tests passed"
    STATUS="passed"
else
    echo "❌ Some tests failed"
    STATUS="failed"
fi

echo ""
echo "Report location: $REPORTS_DIR"
echo "========================================="

# Update JSON report with results
cat > "$REPORT_JSON" << EOF
{
  "timestamp": "$TIMESTAMP",
  "project_root": "$PROJECT_ROOT",
  "web_dir": "$WEB_DIR",
  "status": "$STATUS",
  "exit_code": $TEST_EXIT_CODE,
  "tests": {
    "total": $TOTAL_TESTS,
    "passed": $PASSED_TESTS,
    "failed": $FAILED_TESTS,
    "skipped": 0,
    "duration": $DURATION
  },
  "report_files": {
    "json": "$REPORTS_DIR/results-$TIMESTAMP.json",
    "log": "$REPORTS_DIR/test-output-$TIMESTAMP.log",
    "html": "$WEB_DIR/playwright-report/index.html"
  },
  "health_check": {
    "status": "pending",
    "app_running": false,
    "app_url": "http://localhost:3050"
  },
  "actionable": {
    "if_failed": "Review test-output-$TIMESTAMP.log for specific failure details. Run individual tests with: pnpm exec playwright test --project=chromium <test-file>",
    "if_passed": "All tests passed. Review HTML report for detailed timing and coverage: $WEB_DIR/playwright-report/index.html"
  }
}
EOF

# Generate markdown report for human readability
cat > "$REPORT_MD" << EOF
# E2E Test Report

**Timestamp:** $TIMESTAMP
**Status:** $STATUS
**Exit Code:** $TEST_EXIT_CODE

## Test Summary

- **Total Tests:** $TOTAL_TESTS
- **Passed:** $PASSED_TESTS
- **Failed:** $FAILED_TESTS
- **Duration:** ${DURATION}s

## Report Files

- **JSON Report:** \`$REPORTS_DIR/results-$TIMESTAMP.json\`
- **Log Output:** \`$REPORTS_DIR/test-output-$TIMESTAMP.log\`
- **HTML Report:** \`$WEB_DIR/playwright-report/index.html\`

## Actionable Items

EOF

if [ $TEST_EXIT_CODE -ne 0 ]; then
    cat >> "$REPORT_MD" << EOF
### ❌ Tests Failed

Review the log output for specific failure details:
\`\`\`bash
cat $REPORTS_DIR/test-output-$TIMESTAMP.log
\`\`\`

To debug individual tests:
\`\`\`bash
cd $WEB_DIR
pnpm exec playwright test --project=chromium <test-file>
\`\`\`

Common failure reasons:
- Application not running on http://localhost:3050
- Test selectors changed or elements not found
- Network timeouts or API failures
- Browser compatibility issues
EOF
else
    cat >> "$REPORT_MD" << EOF
### ✅ All Tests Passed

Review the HTML report for detailed timing and coverage:
\`\`\`bash
open $WEB_DIR/playwright-report/index.html
\`\`\`
EOF
fi

# Check health
echo ""
echo "Checking application health..."
echo "========================================="

APP_RUNNING=false
if curl -s http://localhost:3050 > /dev/null 2>&1; then
    echo "✅ Application is running on http://localhost:3050"
    APP_RUNNING=true
    HEALTH_STATUS="healthy"
else
    echo "⚠️  Application is not running on http://localhost:3050"
    echo "Start it with: cd web && pnpm dev -- -p 3050"
    HEALTH_STATUS="unhealthy"
fi

# Update health check in JSON
cat > "$SUMMARY_JSON" << EOF
{
  "timestamp": "$TIMESTAMP",
  "test_status": "$STATUS",
  "test_exit_code": $TEST_EXIT_CODE,
  "tests_total": $TOTAL_TESTS,
  "tests_passed": $PASSED_TESTS,
  "tests_failed": $FAILED_TESTS,
  "duration_seconds": $DURATION,
  "health_check": {
    "status": "$HEALTH_STATUS",
    "app_running": $APP_RUNNING,
    "app_url": "http://localhost:3050"
  },
  "report_dir": "$REPORTS_DIR",
  "latest_report": "$REPORT_JSON",
  "latest_markdown": "$REPORT_MD",
  "for_ai_agents": {
    "quick_summary": "$STATUS - $PASSED_TESTS/$TOTAL_TESTS tests passed in ${DURATION}s",
    "if_failed_check": "$REPORTS_DIR/test-output-$TIMESTAMP.log",
    "html_report": "$WEB_DIR/playwright-report/index.html",
    "next_action": $([ $TEST_EXIT_CODE -ne 0 ] && echo "\"Review failures in log and fix broken selectors or API issues\"" || echo "\"Review HTML report for performance optimization\"")
  }
}
EOF

echo ""
echo "========================================="
echo "Summary"
echo "========================================="
echo "Tests run: Complete"
echo "Status: $STATUS"
echo "JSON Report: $REPORT_JSON"
echo "Markdown Report: $REPORT_MD"
echo "AI Summary: $SUMMARY_JSON"
echo "HTML Report: $WEB_DIR/playwright-report/index.html"
echo "Health check: $HEALTH_STATUS"
echo "========================================="

# Create symlink to latest report
ln -sf "$REPORT_JSON" "$REPORTS_DIR/latest.json"
ln -sf "$REPORT_MD" "$REPORTS_DIR/latest.md"
ln -sf "$SUMMARY_JSON" "$REPORTS_DIR/latest-summary.json"

echo "Latest reports linked to: $REPORTS_DIR/latest.{json,md,summary.json}"
echo "========================================="

exit $TEST_EXIT_CODE