#!/bin/bash
# Deploy Antragstracker auf VServer
# Usage: ./scripts/deploy.sh [--build-only] [--full] [--skip-frontend]
#
# Modes:
#   (default)        Build + deploy code, restart container
#   --build-only     Build Docker image on server, don't restart
#   --full           Full deploy: frontend build + code sync + docker rebuild + restart
#   --skip-frontend  Skip local frontend build (use existing build/)
#
# Voraussetzung: ssh vserver funktioniert

set -euo pipefail

VSERVER="vserver"
REMOTE_DIR="/opt/antragstracker"
CONTAINER="antragstracker-hagen"
PROJECT_DIR="$(cd "$(dirname "$0")/.." && pwd)"

# Parse args
BUILD_ONLY=false
SKIP_FRONTEND=false

for arg in "$@"; do
    case $arg in
        --build-only)    BUILD_ONLY=true ;;
        --full)          ;; # default behavior
        --skip-frontend) SKIP_FRONTEND=true ;;
        -h|--help)
            echo "Usage: $0 [--build-only] [--full] [--skip-frontend]"
            exit 0 ;;
        *) echo "Unknown arg: $arg"; exit 1 ;;
    esac
done

cd "$PROJECT_DIR"

# 1. Frontend bauen (lokal)
if [ "$SKIP_FRONTEND" = false ]; then
    echo "🔨 Frontend bauen..."
    cd frontend && npm run build && cd ..
    echo "   ✓ Frontend build fertig ($(du -sh frontend/build | cut -f1))"
else
    echo "⏭️  Frontend-Build übersprungen"
fi

# 2. Code zum VServer synchronisieren
echo "📦 Code synchronisieren..."
tar czf /tmp/antragstracker-deploy.tar.gz \
    --exclude='.git' \
    --exclude='.venv' \
    --exclude='venv' \
    --exclude='node_modules' \
    --exclude='frontend/.svelte-kit' \
    --exclude='data' \
    --exclude='*.log' \
    --exclude='*.pyc' \
    --exclude='__pycache__' \
    --exclude='.DS_Store' \
    --exclude='.pytest_cache' \
    --exclude='tracker.db*' \
    --exclude='antraege.db' \
    --exclude='.github' \
    --exclude='logs' \
    -C "$(dirname "$PROJECT_DIR")" "$(basename "$PROJECT_DIR")"

scp /tmp/antragstracker-deploy.tar.gz "$VSERVER:/tmp/"
ssh "$VSERVER" "cd /opt && tar xzf /tmp/antragstracker-deploy.tar.gz && rm /tmp/antragstracker-deploy.tar.gz"
rm -f /tmp/antragstracker-deploy.tar.gz
echo "   ✓ Code synchronisiert"

# 3. Docker Image bauen (auf VServer)
echo "🐳 Docker Image bauen auf VServer..."
ssh "$VSERVER" "cd $REMOTE_DIR && docker compose build --no-cache"
echo "   ✓ Image gebaut"

if [ "$BUILD_ONLY" = true ]; then
    echo "⏹️  Build-only Mode — Container wird nicht neu gestartet"
    exit 0
fi

# 4. Container neu starten
echo "🔄 Container neu starten..."
ssh "$VSERVER" "cd $REMOTE_DIR && docker compose up -d"
echo "   ✓ Container gestartet"

# 5. Warten + Health-Check
echo "⏳ Warte auf Startup (5s)..."
sleep 5

echo "🏥 Health-Check..."
HTTP_STATUS=$(curl -s -o /dev/null -w "%{http_code}" "https://antraege.toppyr.de/api/health" 2>/dev/null || echo "000")

if [ "$HTTP_STATUS" = "200" ]; then
    echo "   ✓ Health-Check OK (HTTP $HTTP_STATUS)"
elif [ "$HTTP_STATUS" = "000" ]; then
    sleep 5
    HTTP_STATUS=$(curl -s -o /dev/null -w "%{http_code}" "https://antraege.toppyr.de/api/health" 2>/dev/null || echo "000")
    if [ "$HTTP_STATUS" = "200" ]; then
        echo "   ✓ Health-Check OK (HTTP $HTTP_STATUS, 2. Versuch)"
    else
        echo "   ⚠️  Health-Check fehlgeschlagen (HTTP $HTTP_STATUS)"
        echo "   Logs prüfen: ssh $VSERVER 'docker logs --tail 20 $CONTAINER'"
    fi
else
    echo "   ⚠️  Health-Check: HTTP $HTTP_STATUS"
    echo "   Logs prüfen: ssh $VSERVER 'docker logs --tail 20 $CONTAINER'"
fi

echo ""
echo "✅ Deploy fertig!"
echo "   URL: https://antraege.toppyr.de"
echo "   Logs: ssh $VSERVER 'docker logs --tail 50 $CONTAINER'"