# Unified Configuration for Multi-Tenant Search Engine
  # 统一配置文件，所有租户共用一套索引配置
  # 注意：此配置不包含MySQL相关配置，只包含ES搜索相关配置
  
  # Elasticsearch Index
  es_index_name: "search_products"
  
  # ES Index Settings
  es_settings:
    number_of_shards: 1
    number_of_replicas: 0
    refresh_interval: "30s"
  
  # Field Definitions (SPU级别，只包含对搜索有帮助的字段)
  fields:
    # 租户隔离字段（必需）
    - name: "tenant_id"
      type: "KEYWORD"
      required: true
      index: true
      store: true
  
    # 商品标识字段
    - name: "product_id"
      type: "KEYWORD"
      required: true
      index: true
      store: true
  
    - name: "handle"
      type: "KEYWORD"
      index: true
      store: true
  
    # 文本搜索字段
    - name: "title"
      type: "TEXT"
      analyzer: "chinese_ecommerce"
      boost: 3.0
      index: true
      store: true
  
    - name: "brief"
      type: "TEXT"
      analyzer: "chinese_ecommerce"
      boost: 1.5
      index: true
      store: true
  
    - name: "description"
      type: "TEXT"
      analyzer: "chinese_ecommerce"
      boost: 1.0
      index: true
      store: true
  
    # SEO字段（提升相关性）
    - name: "seo_title"
      type: "TEXT"
      analyzer: "chinese_ecommerce"
      boost: 2.0
      index: true
      store: true
  
    - name: "seo_description"
      type: "TEXT"
      analyzer: "chinese_ecommerce"
      boost: 1.5
      index: true
      store: true
  
    - name: "seo_keywords"
      type: "TEXT"
      analyzer: "chinese_ecommerce"
      boost: 2.0
      index: true
      store: true
  
    # 分类和标签字段（TEXT + KEYWORD双重索引）
    - name: "vendor"
      type: "TEXT"
      analyzer: "chinese_ecommerce"
      boost: 1.5
      index: true
      store: true
  
    - name: "vendor_keyword"
      type: "KEYWORD"
      index: true
      store: false
  
    - name: "product_type"
      type: "TEXT"
      analyzer: "chinese_ecommerce"
      boost: 1.5
      index: true
      store: true
  
    - name: "product_type_keyword"
      type: "KEYWORD"
      index: true
      store: false
  
    - name: "tags"
      type: "TEXT"
      analyzer: "chinese_ecommerce"
      boost: 1.0
      index: true
      store: true
  
    - name: "tags_keyword"
      type: "KEYWORD"
      index: true
      store: false
  
    - name: "category"
      type: "TEXT"
      analyzer: "chinese_ecommerce"
      boost: 1.5
      index: true
      store: true
  
    - name: "category_keyword"
      type: "KEYWORD"
      index: true
      store: false
  
    # 价格字段（扁平化）
    - name: "min_price"
      type: "FLOAT"
      index: true
      store: true
  
    - name: "max_price"
      type: "FLOAT"
      index: true
      store: true
  
    - name: "compare_at_price"
      type: "FLOAT"
      index: true
      store: true
  
    # 图片字段（用于显示，不参与搜索）
    - name: "image_url"
      type: "KEYWORD"
      index: false
      store: true
  
    # 嵌套variants字段
    - name: "variants"
      type: "JSON"
      nested: true
      nested_properties:
        variant_id:
          type: "keyword"
          index: true
          store: true
        title:
          type: "text"
          analyzer: "chinese_ecommerce"
          index: true
          store: true
        price:
          type: "float"
          index: true
          store: true
        compare_at_price:
          type: "float"
          index: true
          store: true
        sku:
          type: "keyword"
          index: true
          store: true
        stock:
          type: "long"
          index: true
          store: true
        options:
          type: "object"
          enabled: true
  
  # Index Structure (Query Domains)
  indexes:
    - name: "default"
      label: "默认索引"
      fields:
        - "title"
        - "brief"
        - "description"
        - "seo_title"
        - "seo_description"
        - "seo_keywords"
        - "vendor"
        - "product_type"
        - "tags"
        - "category"
      analyzer: "chinese_ecommerce"
      boost: 1.0
  
    - name: "title"
      label: "标题索引"
      fields:
        - "title"
        - "seo_title"
      analyzer: "chinese_ecommerce"
      boost: 2.0
  
    - name: "vendor"
      label: "品牌索引"
      fields:
        - "vendor"
      analyzer: "chinese_ecommerce"
      boost: 1.5
  
    - name: "category"
      label: "类目索引"
      fields:
        - "category"
      analyzer: "chinese_ecommerce"
      boost: 1.5
  
    - name: "tags"
      label: "标签索引"
      fields:
        - "tags"
        - "seo_keywords"
      analyzer: "chinese_ecommerce"
      boost: 1.0
  
  # Query Configuration
  query_config:
    supported_languages:
      - "zh"
      - "en"
    default_language: "zh"
    enable_translation: true
    enable_text_embedding: true
    enable_query_rewrite: true
  
    # Translation API (DeepL)
    translation_service: "deepl"
    translation_api_key: null  # Set via environment variable
  
  # Ranking Configuration
  ranking:
    expression: "bm25() + 0.2*text_embedding_relevance()"
    description: "BM25 text relevance combined with semantic embedding similarity"
  
  # Function Score配置（ES层打分规则）
  function_score:
    score_mode: "sum"
    boost_mode: "multiply"
    
    functions: []
  
  # Rerank配置（本地重排，当前禁用）
  rerank:
    enabled: false
    expression: ""
    description: "Local reranking (disabled, use ES function_score instead)"
  
  # SPU配置（已启用，使用嵌套variants）
  spu_config:
    enabled: true
    spu_field: "product_id"
    inner_hits_size: 10