import type { VendorConfig } from '../types';
import { SHARED_SEARCH_KEYWORDS, SHARED_SQL_AGGREGATES, SHARED_SQL_KEYWORDS, SHARED_SQL_SCALARS } from './shared';

const slsConfig: VendorConfig = {
  id: 'sls',
  label: '阿里云 SLS',
  searchKeywords: SHARED_SEARCH_KEYWORDS,
  searchBuiltinFields: [
    { name: '__topic__', detail: '日志主题', doc: 'SLS 内置字段：日志主题' },
    { name: '__source__', detail: '日志来源', doc: 'SLS 内置字段：日志来源 IP/host' },
    { name: '__tag__', detail: '日志标签前缀', doc: 'SLS 内置字段：标签前缀，例如 __tag__:hostname' },
  ],
  fieldAssignOperators: [':'],
  sqlKeywords: Array.from(new Set([...SHARED_SQL_KEYWORDS, 'EXISTS', 'OVER', 'PARTITION', 'WINDOW', 'ARRAY', 'MAP', 'UNNEST'])),
  sqlFunctions: [
    ...SHARED_SQL_AGGREGATES,
    ...SHARED_SQL_SCALARS,
    { name: 'APPROX_DISTINCT', signature: 'APPROX_DISTINCT(field)', doc: 'SLS：近似去重计数' },
    { name: 'APPROX_PERCENTILE', signature: 'APPROX_PERCENTILE(field, percent)', doc: 'SLS：近似分位数' },
    { name: 'HISTOGRAM', signature: 'HISTOGRAM(field)', doc: 'SLS：值分布直方图' },
    { name: 'NUMERIC_HISTOGRAM', signature: 'NUMERIC_HISTOGRAM(buckets, field)', doc: 'SLS：数值直方图' },
    { name: 'date_trunc', signature: "date_trunc(unit, time)", doc: 'SLS：时间截断，unit 为 second/minute/hour/day' },
    { name: 'from_unixtime', signature: 'from_unixtime(unixtime)', doc: 'SLS：unix 时间转日期' },
    { name: 'to_unixtime', signature: 'to_unixtime(time)', doc: 'SLS：日期转 unix 时间' },
    { name: 'regexp_extract', signature: 'regexp_extract(str, pattern[, group])', doc: 'SLS：正则提取' },
    { name: 'regexp_like', signature: 'regexp_like(str, pattern)', doc: 'SLS：正则匹配判断' },
    { name: 'split_part', signature: 'split_part(str, delimiter, idx)', doc: 'SLS：字符串切分取第 idx 段' },
    { name: 'json_extract', signature: 'json_extract(json, path)', doc: 'SLS：JSON 路径取值' },
    { name: 'json_extract_scalar', signature: 'json_extract_scalar(json, path)', doc: 'SLS：JSON 路径取标量值' },
  ],
};

export default slsConfig;