import {
    downloadKeycloakStaticResources,
    type BuildOptionsLike as BuildOptionsLike_downloadKeycloakStaticResources
} from "./downloadKeycloakStaticResources";
import { join as pathJoin, relative as pathRelative } from "path";
import { themeTypes, keycloak_resources, lastKeycloakVersionWithAccountV1 } from "../shared/constants";
import { readThisNpmProjectVersion } from "../tools/readThisNpmProjectVersion";
import { assert } from "tsafe/assert";
import * as fs from "fs";
import { rmSync } from "../tools/fs.rmSync";
import type { BuildOptions } from "./buildOptions";

export type BuildOptionsLike = BuildOptionsLike_downloadKeycloakStaticResources & {
    loginThemeResourcesFromKeycloakVersion: string;
    publicDirPath: string;
};

assert<BuildOptions extends BuildOptionsLike ? true : false>();

export async function copyKeycloakResourcesToPublic(params: { buildOptions: BuildOptionsLike }) {
    const { buildOptions } = params;

    const destDirPath = pathJoin(buildOptions.publicDirPath, keycloak_resources);

    const keycloakifyBuildinfoFilePath = pathJoin(destDirPath, "keycloakify.buildinfo");

    const keycloakifyBuildinfoRaw = JSON.stringify(
        {
            destDirPath,
            "keycloakifyVersion": readThisNpmProjectVersion(),
            "buildOptions": {
                "loginThemeResourcesFromKeycloakVersion": readThisNpmProjectVersion(),
                "cacheDirPath": pathRelative(destDirPath, buildOptions.cacheDirPath),
                "npmWorkspaceRootDirPath": pathRelative(destDirPath, buildOptions.npmWorkspaceRootDirPath)
            }
        },
        null,
        2
    );

    skip_if_already_done: {
        if (!fs.existsSync(keycloakifyBuildinfoFilePath)) {
            break skip_if_already_done;
        }

        const keycloakifyBuildinfoRaw_previousRun = fs.readFileSync(keycloakifyBuildinfoFilePath).toString("utf8");

        if (keycloakifyBuildinfoRaw_previousRun !== keycloakifyBuildinfoRaw) {
            break skip_if_already_done;
        }

        return;
    }

    rmSync(destDirPath, { "force": true, "recursive": true });

    for (const themeType of themeTypes) {
        await downloadKeycloakStaticResources({
            "keycloakVersion": (() => {
                switch (themeType) {
                    case "login":
                        return buildOptions.loginThemeResourcesFromKeycloakVersion;
                    case "account":
                        return lastKeycloakVersionWithAccountV1;
                }
            })(),
            themeType,
            "themeDirPath": destDirPath,
            buildOptions
        });
    }

    fs.writeFileSync(
        pathJoin(destDirPath, "README.txt"),
        Buffer.from(
            // prettier-ignore
            [
                "This is just a test folder that helps develop",
                "the login and register page without having to run a Keycloak container"
            ].join(" ")
        )
    );

    fs.writeFileSync(pathJoin(buildOptions.publicDirPath, keycloak_resources, ".gitignore"), Buffer.from("*", "utf8"));

    fs.writeFileSync(keycloakifyBuildinfoFilePath, Buffer.from(keycloakifyBuildinfoRaw, "utf8"));
}