import { readPackageJson } from "./readPackageJson"

export async function hasDependency(dependency: string | RegExp, dir?: string) {
    const packageJson = await readPackageJson(dir)
    const dependencies = packageJson.dependencies ?? {}
    const devDependencies = packageJson.devDependencies ?? {}
    const peerDependencies = packageJson.peerDependencies ?? {}

    const total = Object.keys({
        ...dependencies,
        ...devDependencies,
        ...peerDependencies,
    })

    return total.some(item => (typeof dependency === "string" ? item === dependency : dependency.test(item)))
}