package executor

import (
	"strings"
	"testing"

	"github.com/everything-on-mysql/cassandra-on-mysql/internal/config"
	"github.com/everything-on-mysql/cassandra-on-mysql/pkg/mysqlbackend"
)

func TestComputeSecondaryIndexPrefixesText(t *testing.T) {
	cfg := config.DefaultConfig().MySQL
	columnTypes := map[string]mysqlbackend.ColumnInfo{
		"c": {Name: "c", DataType: "text"},
	}

	prefixes, err := computeSecondaryIndexPrefixes([]string{"c"}, columnTypes, cfg)
	if err != nil {
		t.Fatalf("compute prefixes failed: %v", err)
	}
	if got := prefixes["c"]; got != 768 {
		t.Fatalf("expected text prefix 768, got %d", got)
	}
}

func TestComputeSecondaryIndexPrefixesRejectsWhenDisabled(t *testing.T) {
	cfg := config.DefaultConfig().MySQL
	cfg.DisableTextBlobSecondaryIndex = true
	columnTypes := map[string]mysqlbackend.ColumnInfo{
		"c": {Name: "c", DataType: "text"},
	}

	_, err := computeSecondaryIndexPrefixes([]string{"c"}, columnTypes, cfg)
	if err == nil {
		t.Fatal("expected error when text/blob secondary index is disabled")
	}
	if !strings.Contains(err.Error(), "not supported") {
		t.Fatalf("unexpected error: %v", err)
	}
}