package database

import (
	"maps"
)

const TOKENTABLECREATE string = `
	CREATE TABLE IF NOT EXISTS tokens (
		name varchar(32) PRIMARY KEY NOT NULL,
		token varchar(32) NOT NULL
	);`

const INSERTTOKENSQL string = "INSERT INTO tokens VALUES (?, ?);"
const DELETETOKENSQL string = "DELETE FROM tokens WHERE name = ?;"
const QUERYTOKENSQL string = "SELECT * FROM tokens;"

var tokenCache map[string]string = make(map[string]string)

func InsertToken(name string, token string) error {
	_, err := database.Exec(INSERTTOKENSQL, name, token)
	return err
}

func DeleteToken(name string) error {
	_, err := database.Exec(DELETETOKENSQL, name)
	return err
}

func ValidateTokenCache(token string) (bool, error) {
	for v := range maps.Values(tokenCache) {
		if token == v {
			return true, nil
		}
	}
	return ValidateToken(token)
}

func ValidateToken(token string) (bool, error) {
	result, err := database.Query(QUERYTOKENSQL)
	if err != nil {
		return false, err
	}
	defer result.Close()

	var name, foundToken string
	for result.Next() {
		result.Scan(&name, &foundToken)
		tokenCache[name] = foundToken
		if token == foundToken {
			return true, nil
		}
	}
	err = result.Err()
	return false, err
}