#!/bin/bash
# deploy.sh — deploya um projeto ou todos (roda DENTRO do container)
# Uso:
#   /home/deploy/scripts/deploy.sh              → deploya todos
#   /home/deploy/scripts/deploy.sh meu-projeto  → deploya só um

PROJECTS_DIR="${PROJECTS_DIR:-/home/deploy/projects}"
BASE_PORT="${BASE_PORT:-3000}"
TARGET="${1:-}"

deploy_project() {
    local project="$1"
    local port="$2"
    local project_dir="$PROJECTS_DIR/$project"

    echo ""
    echo ">>> Deployando: $project → porta $port"

    if [ ! -d "$project_dir" ]; then
        echo "✗ Pasta $project_dir não encontrada"
        return 1
    fi

    cd "$project_dir"

    # Carrega o .env do projeto
    if [ -f "$project_dir/.env" ]; then
        echo "  → .env encontrado, carregando..."
        set -a
        source "$project_dir/.env"
        set +a
    fi

    # Instala dependências
    echo "  → npm install..."
    npm install --prefer-offline 2>&1 | tail -3

    # Build
    echo "  → npm run build..."
    npm run build
    if [ $? -ne 0 ]; then
        echo "  ✗ Build falhou para $project"
        return 1
    fi

    # Salva a porta usada
    echo "$port" > "$project_dir/.port"

    # PM2: reinicia se já existe, senão cria
    if pm2 describe "$project" > /dev/null 2>&1; then
        echo "  → Reiniciando processo PM2..."
        pm2 restart "$project" --update-env
    else
        echo "  → Criando processo PM2..."
        pm2 start dist/main.js \
            --name "$project" \
            -- --port "$port"
    fi

    # Gera/atualiza config nginx
    cat > "/etc/nginx/sites-dynamic/${project}.conf" <<EOF
location /${project}/ {
    proxy_pass http://localhost:${port}/${project}/;
    proxy_http_version 1.1;
    proxy_set_header Upgrade \$http_upgrade;
    proxy_set_header Connection 'upgrade';
    proxy_set_header Host \$host;
    proxy_set_header X-Real-IP \$remote_addr;
    proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
    proxy_cache_bypass \$http_upgrade;
}
EOF

    echo "  ✓ $project deployado em /$project"
}

# -------------------------------------------
# Lógica principal
# -------------------------------------------

if [ -n "$TARGET" ]; then
    port_index=1
    for d in "$PROJECTS_DIR"/*/; do
        [ -d "$d" ] || continue
        name=$(basename "$d")
        if [ "$name" = "$TARGET" ]; then
            break
        fi
        port_index=$((port_index + 1))
    done
    port=$((BASE_PORT + port_index))
    deploy_project "$TARGET" "$port"
else
    port_index=1
    for project_dir in "$PROJECTS_DIR"/*/; do
        [ -d "$project_dir" ] || continue
        project=$(basename "$project_dir")
        port=$((BASE_PORT + port_index))
        deploy_project "$project" "$port"
        port_index=$((port_index + 1))
    done
fi

echo ""
echo "→ Recarregando Nginx..."
nginx -s reload
pm2 save

echo ""
echo "================================================"
echo " Deploy concluído!"
for project_dir in "$PROJECTS_DIR"/*/; do
    [ -d "$project_dir" ] || continue
    project=$(basename "$project_dir")
    port=$(cat "$project_dir/.port" 2>/dev/null || echo "?")
    echo "  ✓ /$project  →  localhost:$port"
done
echo "================================================"