#!/usr/bin/env bash
# 生产：仅用 Docker 跑爬虫，API 在宿主机（如 PM2）时使用。
# 保证爬虫与 API 使用同一 SQLite 文件（数据对齐）。
set -e
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PROJECT_ROOT="${PROJECT_ROOT:-$(cd "$SCRIPT_DIR/.." && pwd)}"
DB_FILE="${DB_FILE:-$PROJECT_ROOT/server/data.db}"
API_BASE="${API_BASE:-http://host.docker.internal:3001}"
CRAWLER_IMAGE="${CRAWLER_IMAGE:-usa-dashboard-crawler:latest}"
CONTAINER_NAME="${CONTAINER_NAME:-usa-crawler}"

# 可选：从 .env 加载 DASHSCOPE_API_KEY 等
if [ -f "$PROJECT_ROOT/.env" ]; then
  set -a
  # shellcheck source=../.env
  . "$PROJECT_ROOT/.env"
  set +a
fi

# 宿主机 DB 必须存在（API 已初始化或先 seed）
if [ ! -f "$DB_FILE" ]; then
  echo "ERROR: DB file not found: $DB_FILE"
  echo "  Create it first: DB_PATH=$DB_FILE node server/seed.js"
  exit 1
fi

# Linux 下 Docker 默认无 host.docker.internal，需显式添加
DOCKER_EXTRA=()
if [ "$(uname -s)" = "Linux" ]; then
  DOCKER_EXTRA+=(--add-host=host.docker.internal:host-gateway)
fi

# 若已存在同名容器则先删
docker rm -f "$CONTAINER_NAME" 2>/dev/null || true

echo "==> Starting crawler container (standalone)"
echo "    DB:        $DB_FILE -> /data/data.db"
echo "    API_BASE:  $API_BASE"
echo "    Image:     $CRAWLER_IMAGE"
docker run -d \
  --name "$CONTAINER_NAME" \
  --restart unless-stopped \
  -p 8000:8000 \
  -v "$DB_FILE:/data/data.db" \
  -e DB_PATH=/data/data.db \
  -e API_BASE="$API_BASE" \
  -e GDELT_DISABLED=1 \
  -e RSS_INTERVAL_SEC=60 \
  ${DASHSCOPE_API_KEY:+ -e DASHSCOPE_API_KEY="$DASHSCOPE_API_KEY"} \
  "${DOCKER_EXTRA[@]}" \
  "$CRAWLER_IMAGE"

echo "    Container: $CONTAINER_NAME"
echo "    Logs:       docker logs -f $CONTAINER_NAME"
echo "    Status:     curl -s http://localhost:8000/crawler/status | jq ."