#!/bin/bash
set -e

PROJECTS_DIR="${PROJECTS_DIR:-/home/deploy/projects}"
DOMAIN="${DOMAIN:-localhost}"
PUBLIC_BASE_URL="${PUBLIC_BASE_URL:-http://${DOMAIN}}"
TARGET=""
NGINX_ONLY=false

for arg in "$@"; do
  case "$arg" in
    --nginx-only) NGINX_ONLY=true ;;
    *) TARGET="$arg" ;;
  esac
done

safe_name() {
  echo "$1" | sed 's/[^A-Za-z0-9._-]/-/g'
}

env_get() {
  local file="$1"
  local key="$2"

  if [ -f "$file" ]; then
    grep -E "^${key}=" "$file" | tail -n1 | cut -d '=' -f2- | sed -e 's/^"//' -e 's/"$//' -e "s/^'//" -e "s/'$//"
  fi
}

env_set() {
  local file="$1"
  local key="$2"
  local value="$3"

  touch "$file"

  if grep -qE "^${key}=" "$file"; then
    sed -i "s|^${key}=.*|${key}=${value}|g" "$file"
  else
    echo "${key}=${value}" >> "$file"
  fi
}

detect_type() {
  local project_dir="$1"

  if [ ! -f "$project_dir/artisan" ]; then
    echo "nao-laravel"
    return
  fi

  if [ -f "$project_dir/package.json" ]; then
    if grep -qiE '"(@inertiajs/vue3|vue|@vitejs/plugin-vue)"' "$project_dir/package.json"; then
      echo "laravel-vue"
    elif grep -qiE '"vite"|'"'@laravel/vite-plugin'" "$project_dir/package.json"; then
      echo "laravel-blade-vite"
    else
      echo "laravel-node"
    fi
  else
    echo "laravel-blade"
  fi
}

has_npm_build() {
  node -e "const p=require('./package.json'); process.exit(p.scripts && p.scripts.build ? 0 : 1)" >/dev/null 2>&1
}

reload_nginx_if_running() {
  if pgrep nginx >/dev/null 2>&1; then
    nginx -t && nginx -s reload
  fi
}

generate_nginx_config() {
  local project="$1"
  local project_dir="$2"
  local safe_project
  safe_project="$(safe_name "$project")"

  cat > "/etc/nginx/sites-dynamic/${safe_project}.conf" <<EOF
# Gerado automaticamente pela Laravel Stack
# Projeto: ${project}
# Pasta: ${project_dir}

location = /${project} {
    return 301 /${project}/;
}

location ^~ /${project}/ {
    alias ${project_dir}/public/;
    index index.php index.html;
    try_files \$uri \$uri/ /${project}/index.php?\$query_string;
}

location ~ ^/${project}/index\.php(/|$) {
    internal;

    include fastcgi_params;
    fastcgi_pass 127.0.0.1:9000;
    fastcgi_index index.php;

    fastcgi_param SCRIPT_FILENAME ${project_dir}/public/index.php;
    fastcgi_param DOCUMENT_ROOT ${project_dir}/public;

    # Importante para Laravel funcionar em subpasta /${project}
    fastcgi_param SCRIPT_NAME /${project}/index.php;
    fastcgi_param PHP_SELF /${project}/index.php;
    fastcgi_param REQUEST_URI \$request_uri;

    fastcgi_param HTTPS \$fastcgi_https;
    fastcgi_read_timeout 300;
    fastcgi_buffer_size 32k;
    fastcgi_buffers 16 16k;
}

location ~ ^/${project}/.*\.php$ {
    return 404;
}
EOF
}

deploy_project() {
  local project="$1"
  local project_dir="$PROJECTS_DIR/$project"
  local safe_project
  local type
  local env_file
  local project_url
  local run_migrations

  safe_project="$(safe_name "$project")"
  env_file="$project_dir/.env"
  project_url="${PUBLIC_BASE_URL%/}/${project}"

  echo ""
  echo "================================================"
  echo " Deployando: $project"
  echo " URL: $project_url"
  echo "================================================"

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

  if [ ! -f "$project_dir/artisan" ]; then
    echo "⚠ $project ignorado: não encontrei artisan. Não parece Laravel."
    return 0
  fi

  if [ ! -f "$project_dir/public/index.php" ]; then
    echo "✗ $project sem public/index.php"
    return 1
  fi

  type="$(detect_type "$project_dir")"
  echo "$type" > "$project_dir/.project-type"

  echo "→ Tipo identificado: $type"

  generate_nginx_config "$project" "$project_dir"
  echo "✓ Nginx criado: /${project}"

  if [ "$NGINX_ONLY" = "true" ]; then
    return 0
  fi

  cd "$project_dir"

  if [ ! -f "$env_file" ] && [ -f "$project_dir/.env.example" ]; then
    echo "→ .env não encontrado, copiando .env.example"
    cp "$project_dir/.env.example" "$env_file"
  fi

  if [ -f "$env_file" ]; then
    env_set "$env_file" "APP_URL" "$project_url"
    env_set "$env_file" "ASSET_URL" "/${project}"
  else
    echo "⚠ Sem .env. Crie $env_file antes de usar banco/cache em produção."
  fi

  echo "→ composer install..."
  composer install \
    --no-dev \
    --prefer-dist \
    --no-interaction \
    --optimize-autoloader

  if [ -f "$env_file" ]; then
    app_key="$(env_get "$env_file" "APP_KEY")"
    if [ -z "$app_key" ] || [ "$app_key" = "null" ]; then
      echo "→ Gerando APP_KEY..."
      php artisan key:generate --force
    fi
  fi

  echo "→ Limpando caches Laravel..."
  php artisan optimize:clear || true

  if [ -f "package.json" ]; then
    echo "→ Dependências front-end encontradas."

    if [ -f "package-lock.json" ]; then
      echo "→ npm ci..."
      npm ci --no-audit --no-fund
    else
      echo "→ npm install..."
      npm install --no-audit --no-fund
    fi

    if has_npm_build; then
      echo "→ npm run build..."
      ASSET_URL="/${project}" VITE_BASE="/${project}/build/" npm run build
    else
      echo "⚠ package.json sem script build. Pulando build."
    fi
  else
    echo "→ Sem package.json. Projeto identificado como Blade/PHP puro."
  fi

  echo "→ storage:link..."
  php artisan storage:link || true

  run_migrations="$(env_get "$env_file" "RUN_MIGRATIONS")"
  if [ "$run_migrations" = "true" ]; then
    echo "→ RUN_MIGRATIONS=true, rodando migrations..."
    php artisan migrate --force
  fi

  echo "→ Otimizando Laravel..."
  php artisan config:cache || true
  php artisan route:cache || {
    echo "⚠ route:cache falhou, limpando cache de rotas."
    php artisan route:clear || true
  }
  php artisan view:cache || true
  php artisan event:cache || true

  echo "→ Ajustando permissões..."
  mkdir -p storage bootstrap/cache
  chown -R www-data:www-data storage bootstrap/cache public || true
  chmod -R ug+rwX storage bootstrap/cache || true

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

deploy_all() {
  local found=0

  for project_dir in "$PROJECTS_DIR"/*/; do
    [ -d "$project_dir" ] || continue
    project="$(basename "$project_dir")"
    found=$((found + 1))
    deploy_project "$project" || true
  done

  if [ "$found" -eq 0 ]; then
    echo "Nenhum projeto encontrado em $PROJECTS_DIR"
  fi
}

mkdir -p "$PROJECTS_DIR" /etc/nginx/sites-dynamic

if [ -n "$TARGET" ]; then
  deploy_project "$TARGET"
else
  deploy_all
fi

echo ""
echo "→ Recarregando Nginx se estiver em execução..."
reload_nginx_if_running || true

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