import type { GqlEnum } from './enum.js';
import type { GqlFragment } from './fragment.js';
import type { GqlTemplate } from './template.js';
import type { GqlVariable } from './variable.js';

export const GQL_FRAGMENT = Symbol('GqlFragment');

/** 检查是否为打包的 GQL Fragment */
export function isGqlFragment(value: unknown): value is GqlFragment {
    return value != null && typeof value == 'object' && GQL_FRAGMENT in value;
}

export const GQL_TEMPLATE = Symbol('GqlTemplate');

/** 检查是否为 GQL 模板 */
export function isGqlTemplate(value: unknown): value is GqlTemplate {
    return value != null && typeof value == 'object' && GQL_TEMPLATE in value;
}

export const GQL_ENUM = Symbol('GqlEnum');

/** 检查是否为打包的 GQL 枚举 */
export function isGqlEnum(value: unknown): value is GqlEnum {
    return value != null && typeof value == 'object' && GQL_ENUM in value;
}

export const GQL_VARIABLE = Symbol('GqlVariable');

/** 检查是否为打包的 GQL 变量 */
export function isGqlVariable(value: unknown): value is GqlVariable {
    return value != null && typeof value == 'object' && GQL_VARIABLE in value;
}