#!/bin/bash
# start.sh — entrypoint do container
# Roda ao iniciar/resetar o container

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

echo "================================================"
echo " NestJS Stack — Iniciando..."
echo "================================================"

# Garante que a pasta de projetos existe
mkdir -p "$PROJECTS_DIR"
mkdir -p /etc/nginx/sites-dynamic

# Limpa configs antigas do nginx (container pode ter sido resetado)
rm -f /etc/nginx/sites-dynamic/*.conf

# Inicia nginx
echo "→ Iniciando Nginx..."
nginx -t && nginx
echo "✓ Nginx rodando"

# Se houver projetos com build existente, sobe eles via PM2
echo "→ Verificando projetos existentes..."
port_index=1

for project_dir in "$PROJECTS_DIR"/*/; do
    [ -d "$project_dir" ] || continue
    project=$(basename "$project_dir")
    port=$((BASE_PORT + port_index))

    # Só sobe se já tiver build
    if [ -f "$project_dir/dist/main.js" ]; then
        echo "  → Subindo $project na porta $port"

        pm2 start "$project_dir/dist/main.js" \
            --name "$project" \
            --env production \
            -- --port "$port" 2>/dev/null

        # Gera config nginx para esse projeto
        cat > "/etc/nginx/sites-dynamic/${project}.conf" <<EOF
location /${project}/ {
    proxy_pass http://localhost:${port}/;
    proxy_http_version 1.1;
    proxy_set_header Upgrade \$http_upgrade;
    proxy_set_header Connection 'upgrade';
    proxy_set_header Host \$host;
    proxy_set_header X-Real-IP \$remote_addr;
    proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
    proxy_cache_bypass \$http_upgrade;
}
EOF
        echo "$port" > "$project_dir/.port"
    else
        echo "  ⚠ $project sem build — rode: docker exec nestjs-stack /home/deploy/scripts/deploy.sh $project"
    fi

    port_index=$((port_index + 1))
done

# Recarrega nginx com as configs dos projetos
nginx -s reload 2>/dev/null || true
echo "✓ Nginx atualizado com rotas dos projetos"

pm2 save 2>/dev/null || true

echo ""
echo "================================================"
echo " Stack pronta!"
echo " Acesse: http://\${DOMAIN:-localhost}/<projeto>"
echo "================================================"

# Mantém o container vivo e faz log do PM2
pm2 logs --raw