//go:build mysql

package mysql

import (
	"database/sql"
	"strings"
	"testing"
)

type recordingGroupSchemaExecutor struct {
	statements []string
}

func (e *recordingGroupSchemaExecutor) Exec(query string, _ ...any) (sql.Result, error) {
	e.statements = append(e.statements, query)
	return nil, nil
}

func TestEnsureIMGroupBusinessTablesUsesSelectedTenantDatabase(t *testing.T) {
	exec := &recordingGroupSchemaExecutor{}
	if err := ensureIMGroupBusinessTables(exec); err != nil {
		t.Fatal(err)
	}
	if len(exec.statements) != 13 {
		t.Fatalf("created %d group tables, want 13", len(exec.statements))
	}
	for _, statement := range exec.statements {
		if strings.Contains(strings.ToLower(statement), "tinode.") || strings.Contains(strings.ToLower(statement), "create database") {
			t.Fatalf("group schema must use the selected tenant database: %s", statement)
		}
	}
	joined := strings.ToLower(strings.Join(exec.statements, "\n"))
	for _, expected := range []string{
		"primary key(id), unique index uk_im_group_settings_topic(topic)",
		"primary key(id), unique index uk_im_group_announcement_reads_announcement_user(announcement_id, user_id)",
		"primary key(id), unique index uk_im_group_mutes_topic_user(topic, user_id)",
	} {
		if !strings.Contains(joined, expected) {
			t.Fatalf("group schema is missing snowflake primary-key definition %q", expected)
		}
	}
}