import { CdnBuildStatus } from "./models/SearchResponse/CdnBuildStatus";
import { getJSON } from "./utils";

interface SearchParams {
    /**
     *  Don't add @ again, we hav @ front of your string,
     *  look up document
     *  https://docs.skypack.dev/skypack-cdn/api-reference/lookup-urls#lookup-by-package-+-version-range-semver
     */
    min?: boolean;
    dts?: boolean;
    dist?: string;
}

const root = "https://cdn.skypack.dev";

/** 获取 package 的文件 */
export const getPackageURL = (
    name: string,
    path = "",
    { min = false, dts = false, dist }: SearchParams = {}
) => {
    const params = new URLSearchParams();
    min && params.set("min", "");
    dts && params.set("dts", "");
    dist && params.set("dts", dist);

    return root + `/${name}/` + path + "?" + params.toString();
};
interface MetaData {
    name: string;
    version: string;
    buildId: string;
    buildStatus: CdnBuildStatus;
    packageExports: {
        [name: string]: {
            id: string;
            optimized: boolean;
            hasDefaultExport: boolean;
            namedExports: string[];
            type: string;
        };
    };
}
/**
 * 获取 package 的详细信息 当构建失败时会报错
 * https://docs.skypack.dev/skypack-cdn/api-reference/package-metadata */
export const getPackageMetaData = async (name: string) => {
    return getJSON<MetaData>(root + `/${name}?meta`);
};

/**
 * 获取一个 pinned 的 URL，可以加速获取文件
 * https://docs.skypack.dev/skypack-cdn/api-reference/pinned-urls-optimized
 */
export const getPinnedURL = async (name: string, min = false) => {
    const meta = await getPackageMetaData(name);
    if (meta.packageExports["."]) {
        const head =
            root +
            `/pin/${meta.name}@v${meta.version}-${meta.buildId}/mode=imports${
                min ? ",min" : ""
            }/optimized/`;
        return head + meta.packageExports["."].id.replace(/^\.*\//, "");
    } else {
        return "";
    }
};