package index

import "fmt"

// CreateDatabaseSQL creates the index database if absent.
func CreateDatabaseSQL(database string) string {
	return fmt.Sprintf("CREATE DATABASE IF NOT EXISTS %s", database)
}

// CreateTableSQL returns the DDL for the archive index table. One row is written
// per archived S3 object. In-cluster the argocd bootstrap Job owns table
// creation (like the logging stack's clickhouse-schema PostSync hook); this DDL
// is also shipped as schema/archive_index.sql and applied by `logarchiver
// init-schema`.
//
// PARTITION BY month of min_ts keeps partitions coarse (few objects/day).
// ORDER BY (subject, min_ts) matches the primary search axes. A bloom_filter
// skip index on hosts accelerates host lookups without a per-host column.
func CreateTableSQL(database, table string) string {
	return fmt.Sprintf(`CREATE TABLE IF NOT EXISTS %s.%s
(
    object_key       String,
    bucket           LowCardinality(String),
    subject          LowCardinality(String),
    hosts            Array(LowCardinality(String)),
    min_ts           DateTime64(3),
    max_ts           DateTime64(3),
    event_count      UInt64,
    raw_bytes        UInt64,
    stored_bytes     UInt64,
    compression      LowCardinality(String),
    cipher           LowCardinality(String),
    container_format LowCardinality(String),
    key_name         LowCardinality(String),
    key_fingerprint  String,
    created_at       DateTime64(3) DEFAULT now64(3),
    INDEX idx_hosts hosts TYPE bloom_filter GRANULARITY 1
)
ENGINE = MergeTree
PARTITION BY toYYYYMM(min_ts)
ORDER BY (subject, min_ts, object_key)`, database, table)
}