import * as env from '../types/instance.resolver'

export function prevent(e: Event | MouseEvent, handler?: Function) {
    e.preventDefault()
    return handler?.(e)
}

export function stop(e: Event | MouseEvent, handler?: Function) {
    e.preventDefault()
    e.stopPropagation()
    return handler?.(e)
}

/**根据条件返回不同参数**/
export function divineWherer<T>(where: boolean, value: T, defaultValue?: T): T {
    return (where ? value : defaultValue) as T
}

/**延时方法**/
export function divineDelay(delay = 100, handler?: Function) {
    return new Promise(resolve => {
        const timeout = setTimeout(() => {
            handler?.()
            resolve(undefined)
            clearTimeout(timeout)
        }, delay)
    })
}

/**条件函数执行**/
export async function divineHandler<T>(where: boolean | Function, scope: env.Omix<{ handler: Function; failure?: Function }>): Promise<T> {
    if (typeof where === 'function') {
        where = await where()
    }
    if (where) {
        return await scope.handler()
    } else {
        return (await scope.failure?.()) ?? undefined
    }
}